Category Archives: Railroad Tech.

Eisenbahn Journal: Literature for European Train Enthusiasts

Two plugs here for a fine publication and the dealer who sells it. For collectors interested in studying the technical details of European trains modeled by Marklin the Eisenbahn Journal with its large format and beautiful photographs will inspire such research. Unfortunately the Journal is only available in German text but the numerous photographs alongside google searches will enable some good armchair journeys into the history of Swiss, German and Austrian trains. Plus layout and scale modeling articles not unlike railroading magazines in the United States.

A special edition of the Journal is called “Extra” and features a yellow tab on the cover. Extra’s are special editions each with a particular theme either a railroading era or specific locomotives. This edition also includes a DVD playable on computer but not compatible with USA DVD’s. The cost in the United States is $30 per issue which may seem like a lot until you have one to examine in person.

Only one dealer in the United States seems to sell these fine magazines and they are Reynauld’s of Elburn, IL. Reynauld’s has a big presence on the internet featuring the best website for model trains, it does not feature inventory levels which is a bit of a drawback but contacting them before ordering is the best way if there is an item that you fear is no longer available.

The “Ludmilla” issue is a particular favorite of mine along with the V200 Extra issue which includes a couple of photos of the mighty V300.

Located in the very small town of Elburn, IL Reynauld’s is located in a defunct bank on Main Street near a mainline servicing Chicago. My Wife and I visit the shop a couple of times a year, it is fun to look at fine very limited production HO models displayed in cases as well as the Eisenbahn Journal room with hundreds of back issues for sale. Plus there are the numerous Z accessories, new and old Marklin items. You never know what you might find so give yourself plenty of time. Operated by brothers Rey and Roman who are real European train guys Reynaulds is a great resource for collectors. Here you will not only find great prices but the shop also features a buyers club, every purchase adds money to your Reynauld’s Rewards account, but you have to sign up for it.

Siding: the link for the Eisenbahn Journal can be found on the left margin of Reynauld’s website: https://www.reynaulds.com/eisenbahn.aspx

Siding: Reynauld’s is the exclusive USA dealer for MBZ building kits.

Super Elevated Track and Centrifugal Force

Whether in scale or in prototype super elevation works for both. Modelers in Z and other scales sometimes seek out realism that results from much knowledge and expertise, “super elevated track” is one such practice that has been incorporated into layouts by modelers for years.

Speed, mass and tightness of curve produce centrifugal force that is countered by superelevation of track. Several interesting positives of super elevated track that occur with the prototype include less wear and tear to locomotive wheels and track, but higher speeds through curves and passenger comfort are primary reasons railway track incorporates this technology.

The degree of elevation varies by usage and country, in Europe the maximum elevation allowed is 7 degrees. It should be noted that maximum elevation occurs gradually through curves thus allowing a smooth transition for a train and its passengers. The wheel flange of slower freight trains using the same track as high speed express trains will come in contact with the inner rail whereas the express train’s wheel flanges will contact the outer rail through a super elevated curve.

Superelevation for railways sounds like new technology, but it was proposed when railroads were newly introduced in the 19th century. Higher speeds and more curves propelled the idea into reality, such was the case during the second half if the 19th century in the United States . Modern technology is also incorporated into train suspension thus allowing cars to tilt through curves.

Note: roll angle of rail (cant) is not the same as superelevation, cant refers to rail tilt whereas superelevation refers to height of outer rail relative to inner rail of a track section.

Modeling superelevation in z requires a calculation and method for applying. In the United States the maximum elevation allowed is 6 inches on the outer rail thus at 1:220 that calculation is .0272 inches. Applying the technology to Z scale track is a matter of preference but keep in mind the maximum elevation with the prototype is gradual through a curve. Several ideas to propose include the use of styrene of the required thickness placed under the rail sleepers or placed under cork roadbed, wire can also be fashioned to lay under cork and outer rail thus providing an easy installation after the cork roadbed and track are laid but before they are fastened.

Superelevation is clearly one of the technologies that can be incorporated into a layout to more closely align with the prototype, adding this feature to a layout is not often done but the realism achieved maybe essential to some.

If customizing track for superelevation is not your thing than you are in luck, Rokuhan has introduced superelevated track into their program which of course incorporates roadbed for snap together track sections.

Learn more about Rokuhan superelevated track: http://www.rokuhan.com/english/news/2016/04/post-31.html

Select Rokuhan dealers in the United States include zscalehobo.com, zscalemonster.com and ztrackcenter.com.

Good luck and have fun!

Siding: refer back to the prototype often when modeling a layout, even at the reduced scale of 1:220 much can be learned and shared with the prototype.

Marklin 88893: BR 10 with experimental paint scheme

The rarest of the BR 10’s in ‘Z’ is the 88893, it was only available from the mini-club Center upon release. This One Time Series from 2004 features the experimental paint scheme proposed by Krauss-Maffei, they also proposed a unique angled smoke deflector with large proportions. This was another paint scheme that was not adapted for the new DB BR 10 instead black was the chosen color. The 88893 was released in an attractive wood box, it features a 5 pole motor.

Siding: one of Marklin’s Era III DB coach sets will complement this loco and look great to boot!

Repainting Marklin 8135 coaches for the SJ: Part 2

Part 2 is completed: stripping the old and prepping for the new. Marklin’s 8135 Dompfeil set is the subject of the repaint and older SJ coaches will be the end result.

I am using the FR label kit for the repaint which includes dry transfer lettering, lettering will take place in Part 4.

Following Part 1 which was disassembly this post concerns stripping paint from plastic train shells. The stripper is 91% isopropyl alcohol available from any drugstore, its cost for this project $4.00.

I first placed all parts to be stripped (4 coach shells and 1 roof panel) in a small plastic dish and submerged them in the alcohol. In about 1 hour the paint appeared to be softening on the shells. Using a toothbrush I applied little pressure to remove the paint and decals, it would take numerous attempts with time in between to remove the finish, but it eventually started coming off with the toothbrush. The roof which was yellow in the original set was much more difficult to strip, it required an overnight soak in the alcohol. The silver painted roof panels I did not strip these I will simply spray over, I stripped the warm white panel due to the thickness of the paint which was heavier than the silver paint.

Note: use of eyewear and gloves is highly recommended. The fumes from the alcohol is very strong thus a well ventilated work area is best, take frequent breaks to avoid breathing in too many fumes, the plastic parts are not affected by the alcohol, they will not melt.

For paint that was in small crevices or around roof details I made use of a toothpick, soaked in alcohol, it worked well to dislodge hard to get at paint.

Following the stripping I washed each part in mild Dawn dish washing liquid and rinsed well.

After inspecting each dry part I repeated the stripping to remove paint on some of the window frames.

photo: before

photo: after

The next step is painting which will include constructing a spray booth out of cardboard box, matching paint chip FR included in kit, and constructing armature to hold the parts for painting.

Siding: the Dompfeil coaches are the same ones made in Germany for the SJ, they featured aluminum roof panels: early ones were painted gray and the late ones were shiny silver. For these coaches I am modeling the earlier ones to be pulled by an Ra 987 Express locomotive.

photo: FR – 46.132.01 – Statens Jarnvagar SJ (Swedish State Railways) Serie Ra 987 Express locomotive. Limited Release of 32 locos total.

Side Rods: Correct alignment to make steam locos go!

Sometimes the repair of a steam loco is necessary thus taking one apart can be cruel and unusual punishment for the uninitiated, but quickly it is realized that repairing a mini-club steam loco is achievable with a few general rules.

When I first got into collecting mini-club I remember a dealer offering repair services for all locos except for steam locos, they are too difficult was this much awarded USA Marklin dealer response. Through the course of my collecting the repair and maintenance of steam locos is part of the fun! When I use the word fun I really mean it, what better way than to quietly sit at the workbench on a Saturday afternoon taking apart a loco that does not work and bringing it back to life. The problem solving with a positive resolution is key to excitement of returning a loco to service such is the case with correct assembly of steam locos.

All of us will have a turn removing hardened oil from around the pilot wheel pivot point or wheel set gearing and even the worm gear all requiring a disassembly of the oil pan below the engine. Removing hardened oil is simply achieved but reassembling the steam loco can be the hard part for some locos including ‘mallet’ type or others with more than two pairs of driving wheels. All reassembly of bogies follows the same advice and that is to start at the front drive wheel followed by the intermediate gear followed by the next drive wheel and so forth. The pick-ups that make contact with the drive wheels can be a little tricky but keeping pressure (not too much) to each assembled wheel set in the chain works best otherwise with no pressure the pick-ups would spring outside the wheels. Add side rods to the mix and the assembly gets a little more tricky. Some side rods simply sit in a groove in the cylinder block while other designs allow them to be inserted in slots. The BR 10’s (8888, 8889, 88892, and 88893) side rods are of the latter type, the side rod sits in a groove and the shell holds it in place. Applying pressure to the side rods until the shell is in place adds a layer of complexity to this locomotive type.

Correct orientation of the wheel sets follows that all weighted sides of the wheels are aligned at the same spot to achieve this end one must turn a pair of wheel sets until it aligns. If the wheels are not lined up correctly the loco does not run properly if at all. Inexplicably in the case of the BR 10’s the wheel sets can be out of alignment and still work well on an operating loco, go figure!

photo: incorrect wheel alignment on 8889

photo: correct wheel alignment on 8889

Once the loco is taken apart it is a straight forward matter of putting it back together, it will always go back together because Marklin makes them that way. As soon as patience has left the room perhaps one should leave the project to come back to later. Always start from the front of a bogie and leave the pilot and trailing truck for last, they can be slide under the loose oil pan before screwing it together.

Note: before making any such repair organize the work bench with good light and a surface to work on, I use a foam bench made for z by www.z-hightech.de featuring a tool holder, flat area for holding parts, wedge shape section to hold a loco upside down and on angle, and a channel for securely holding the loco in place. This is the very best accessory I have found for train maintenance. I got mine on Ebay from gps_97 under the heading “GPS-5000 maintenance pad”.

Under the Hood: Marklin Z Rotary Snowplow

A brief look under the hood of Marklin’s “Rotary Snowplow” in z scale reveals engineering that is both functional and well conceived.

Two worm gears meet up at 90 degrees to turn the cutting wheel that is powered by the 5 pole motor. A heavy metal frame is the foundation for the motor which receives its power directly from the rails without the need of a circuit board, the motor leads are soldered to wires leading to trucks: one wire to each truck soldered to a power pick-ups in the form of spring copper. A unique solution that I haven’t seen in any other mini-club train except for the 3 Rotary Snowplow sets. The overall weight of the snowplow is equal to a locomotive thereby giving it good traction.

To access the interior of the snowplow simply lift off shell, it slides on snugly without clips, I recommend working front and back gently until it lifts off thus allowing the brushes to be replaced: part number 89891.

More than 8 1/2 inches in length the mini-club Rotary Snowplow is an impressive machine.

Take a look at part two of the post featuring customization of the loco and repair notes.

Good Luck and Have Fun!

Repainting Marklin 8135 for the SJ!!!!!!!!!!!!!: Part 1

photo: FR 46.130.31 – RC-2 locomotive for SJ

Marklin has paid little attention to Scandinavian Railroads in z gauge. There have been releases such as the 4 MY locos (brilliant series!!!!) and a few interesting freight cars, but never has there been attention paid to Sweden, this country’s railroads are left up to the never ending achievements of Harald Freudenreich at FR.

photo: FR 46.816.01 – Kis 950 sliding roof car for steel slab transport on SJ

Marklin has covered the SJ railway in HO only while FR has devoted much of their time in recent memory to SJ and other Scandinavian railroads. FR offers some Swiss, German and Austrian items currently, but Harald’s devoted fans come to him for Scandinavian trains.

photo: FR 46.132.01 – Ra 987 Express Locomotive of the SJ

Some of the most interesting railroads in the World are located in some of the most interesting natural wonders in the World. Light, geography, and climate combine to create the beautiful Scandinavian landscape, but for trains it is challenging, cargo has to be protected from a rather brutal climate with some box cars lined with heavy insulation to protect from permafrost and autos transported in closed boxes. More on this topic at a later date.

photo: FR 47.812.00 – insulated box car for the NSB

The topic today is a project I have been interested in starting for awhile now, it is the repaint of Marklin 8135 coaches for the SJ Railway. Although FR has paid much attention to freight rolling stock, they have not released coaches for the SJ as of this date with one exception. An announcement was made earlier in the year that coach sets are coming to market later this year, but in the meantime I am making my own custom set using dry stencils provided by FR a couple of years ago. The exception was a proposed project of many years that was finally released last year, it was a Marklin coach modified for SJ. The prototype was based on German built coaches used in ferry service in Sweden.  In order to model the prototype FR repainted and stenciled the coach after cutting the shell to remove a window thus shortening the coach. I own this coach and the craftsmanship is flawless.

photo: FR 46.299.00 – type litt AB8k 1st and 2nd class coach for ferry service to Germany. The top coach is the modified Marklin for SJ by FR, and the bottom coach is the original standard coach by Marklin.

Why refinish the 8135 coaches and not another set of coaches? Good question! Set 8135 was released in 1991 and included coaches built in Germany that were also used on the SJ. The historical perspective was provided by FR who also provided the stencil kit for relettering the coaches and a paint chip for the correct shade of reddish brown used by SJ. Painting and other details will be discussed in Part 2 and 3 respectively.

photo: deluxe box train set “Dompfeil” of the DB

The first installment of this project is disassembly of the coaches. It is okay to be a little nervous disassembling Marklin coaches, but all things Marklin are built to take apart, each part is snapped or clipped together without glue. Repainting projects in Marklin Z are not necessarily recommended by this railroader, they potentially will diminish the collectible value, but in my case I own two 8135 sets which I like very much, turning the second set into SJ coaches is a bit necessary since I collect SJ locos built for express service.

On with the project! First step is identifying the set for repaint, in this case the historical background was already researched by FR. The set for repaint is Marklin 8135 released with a BR 03 express loco in a deep blue paint scheme. The set was released in 1991 with three 2nd class coaches and one DRG dining car. This was a deluxe boxed set presented in a high gloss illustrated carton. The running performance of this loco is superb, and it looks great to boot!

photo: 8135 locomotive and tender – BR 03

photo: 3 coaches disassembled with their respective parts including shell, trucks, weight, roof, and window glazing.

Step 2 includes the removal of the roof which is easily accomplished by very carefully pulling it off, the roof is clipped on and starting from one end seems to be the way to do this successfully.

Step 3 involves the removal of each car’s pair of trucks, carefully swivel each truck to the side for leverage and using a small screwdriver gently pry the truck off by moving back and forth around the pivot point, it will snap off. Note: torquing as seen in the photo is necessary for removal of trucks, but please use care.

Step 4 using a small pair of tweezers and starting at one end gently loosen the window glazing held in place with prongs in the base of the coach. Take note of the indents that line up with the roof clips for reassembly later.

Step 5 is removal of the weights. Using a small screwdriver remove the plastic heat points holding the weights down, weights will lift off easily from the posts in the bottom of shell.

This is one of those projects that allows a railroader to tinker with their hobby.

Good Luck and Have Fun!

Siding: this set contains parts that are snapped or clipped in place, but older coaches used glue to cement the window glazing, in the case of older coaches window glazing will more than likely pop out with gently wriggling. Reassembly of early windows is accomplished with 5 minute epoxy only, other glues use solvents that might melt plastic. NEVER use a soldering iron in and around enclosed plastic parts, micro soldering irons should only be used on heat points to attach shell to frame and coupler housings with caution!

German BR 10 Express Locomotive: 5 variations in Z!

A rather short lived and limited steam locomotive is none other than Germany’s BR 10 express locomotive of the DB, only 2 were made in 1957. They were seen as the replacement for the Class 01, but lack of locally sourced parts sidelined the elegant steam locomotive to the car shops thereby cementing a wrongly held belief that they were unreliable.

Nicknamed “Black Swans” because of their elegant appearance the BR 10’s were in service for just 11 years. Streamlining was practiced for many years in designs of steam locos, but the BR 10’s seemed to be a further refinement of this technology, instead of reducing wind resistance by sheathing a steam locomotive as was the tradition, the BR 10’s were shaped to direct the airflow in and around the locomotive while at the same time giving easy access to the running gear for daily maintenance. Cylinders could be accessed by hinged door in streamlining.

Two 4-6-2 BR 10’s were manufactured by Krupp with oil fired tenders that would replace traditional firing thereby reducing the fireman’s work by 30%.

The top speed of this locomotive class was nearly 100 miles/hour which was enough speed for express service and their time schedules, but their 22 ton axle weight limited their use to certain mainlines only.

The class 10 001 is a preserved locomotive at the railway museum Deustche Dampflokmuseum in Neuenmarkt-Wirsberg.

Marklin produced 5 variations of the BR 10 for Z including two in experimental colors and one 18 carat gold special version (88891). All locomotives with the exception of 88891 were given operating number BR 10 001.

In 1955 various color scheme proposals were submitted to highlight the new German Federal Railroad’s flagship locomotive, but it appears black with white pinstripe was the chosen color scheme.

8888 (photo) One Time Series 1994 for MHI program with blue and gray color scheme.

8889 (photo) BR 10 with black and white pinstripe was produced 1994-2008. Early examples will include the original 3 pole motors and later models have the new 5 pole. Operating number 10 001.

88891 (no photo) BR 10 commemorative model to celebrate “25 Jahre mini-club”. Loco and tender were produced in 25 carat gold. This One Time Series from 1997 included white gloves and a signed certificate.

88892 (photo) BR 10 produced in celebration of 10th anniversary of MHI program. Stunning experimental paint scheme in blue with pinstripe. Produced as a One Time Series in 2000. Originally available from MHI dealers only. Delivered in wood box.

88893 (photo) BR 10 in experimental paint scheme by Krauss-Maffei, they proposed this design August 4, 1955 and referenced the study as TLO 54801. The smoke deflectors were unique to this design, tear drop shape was to accentuate the forward thrust of the locomotive. The resolution meeting at the end of 1955 was unable to approve this design. Limited Release 2004 available at mini-club Center only. A stunning example of a locomotive that if produced would have broken new ground in steam locomotive design. Delivered in wood box.

Beyond color variations no differences appear in the four pictured locomotives with the exception of specialized smoke deflectors in the 88893. Under the hood late production 8889, 88892 and 88893 included the updated 5 pole motor.

Adding streamlined locomotives to a layout will portray the transitional period of the late 1950’s in Germany with all types of locos sharing the rails including traditional steam class 01’s, diesel and electric.

Good Luck and Have Fun!

Siding: this robust locomotive type is a strong runner with excellent pulling power due to its heavy weight. Even distribution of weight makes this an unlikely candidate to poop out in a turn-out at low speed. Derailments are equally unheard of with this fine mini-club locomotive.

Siding: Marklin 5 pole motor upgrade is possible for the 8888 and 8889 with part number E211911. Basic soldering techniques are required for this repair.

 

 

German P8 and BR 38 Steam Locomotives

Photo: Former Prussian P8 given as war reparation to SNCF following WWI.

Marklin reached back into German railroading history and realized the legendary P8 and BR 38 in ‘Z’. Note: before unification it was the P8 and after unification it was BR 38. In the Marklin line-up there are plenty of variations of the P8 and 38 steam locomotives but the tooling remained the same until the side rods and brake equipment were upgraded with the 2013 release of 88998.

So what about the history of this 4-6-0 locomotive? Nearly 4000 examples were manufactured for 18 years starting in 1908. Retirement came in 1974 after a 50 year career with 627 having been given to other countries as war reparations following WWI. Its top speed of 110km/hr was suitable for passenger trains, but it was a reliable goods train also. In my research the top speed of 110km/hr was never fully achieved in the Prussian examples due to poor running performance of the Prussian ‘box’ style tenders instead it would seem that 100km/hr was the top speed in the early years. It is noted that larger tenders were not used by KPEV due to the burdens of turning a longer loco and tender on turntables of the time. Eventually the DB fitted war time ‘tub’ style tenders to this locomotive class after WWII.

8899 is the first BR 38 produced in mini-club, 1982 to be exact. This Era III BR 38 for the DB featured the original Prussian ‘box’ style tender and 3 pole motor, it was produced until 1995. The large smoke deflectors would eventually be replaced with smaller ‘Witte’ deflectors.

88991 (photo) is virtually identical to 8899 with two notable exceptions: 5 pole motor and post-war ‘tub’ style tender. This locomotive was produced from 1998 until 2003.

The P8 painted and lettered for KPEV (Royal Prussian Railroad Administration) as a One Time Series was 88994 (photo). Released in 2006 as part of the MHI program the 88994 represents an Era I P8 with original Prussian ‘box’ style tender. KPEV locos in the Marklin line-up are heavily detailed with distinctive paint scheme, they can go with passenger or freight cars, or both.

Jumping ahead to the new era at Marklin is the 88998 (photo) BR 38 for DB. An Era III steam locomotive featuring Marklin new design concept that includes lively side rod action and detailing including well conceived brake equipment details. The movement of the side rods on this loco are elegant! Note the correct style tender for Era III and ‘Witte’ smoke deflectors. First retooling since 1982!

Rolling back the clock to 2009 is the 88999 (photo) P8 for Gr.Bad.Sts.E. (Grand Ducal Baden State Railways). This Era I locomotive was in the Marklin mini-club line-up from 2009-2014. Original Prussian box style tender and 5 pole motor. Paint and lettering in Prussian Blue with boiler straps painted to highlight the prototypes original brass ones. Note: no smoke deflector was incorporated in the early design of the P8, other design changes would happen over time including two types of smoke deflectors and tub style WWII welded tender.

Marklin’s first release of a P8 in a train set was 8130 from 1989 – 1992, the 8128 (photo) included an Era I KPEV loco and tender paired with four freight cars.

The Marklin 81420 (photo) Grand Ducal Baden State Railways train set from 2000 – 2002 included a Gr.Bad.Sts.E P8 in striking Prussian Blue paint scheme detailed with brass boiler straps, it was boxed with a 2nd class and a 3rd class coach as well as a privately owned Swiss tank car and beer car with brakeman’s cabin. Locomotive is equipped with Marklin 5 pole motor.

The 2002 One Time Release of “Sylt Auto Travel Train” 81428 (photo) was another example of a train set with mixed rolling stock, freight and passenger coaches comprising the consist. This train set from Era III included a DB BR 38 with ‘tub’ style tender, 2- coaches lettered for “Hamburg – Altona, Husum – Niebull, Westerland plus 4 low side cars with autos, camping trailers and vans as loads. An interesting train set for vacationers traveling to camping destinations, this train removed the inconvenience of driving a camping rig to the vacation spot thereby delivering rested passengers at the start of their leisure vacations. Note: first time Witte smoke deflectors used on this ‘Z’ loco type.

The Era II “Ruhr-Schnellverkehr” (Ruhr Express Service) train set 81437 (photo) was released in 2005, it was produced until 2008, but it is unlikely many were produced through this period owing to the rarity of this set. The BR 38 locomotive was joined in the set with three coaches of Prussian design: 2- 3rd class coaches with and without brakeman’s cab, and 1- 2nd/3rd class coach with brakeman’s cab (notice the colorful paint scheme on center compartments denoting 2nd class). Please take note of the Prussian design compartments each accessed by exterior doors, in express coaches of this design passengers had little time to find their compartment and climb in, less than a minute is all you were given! The Marklin coaches in this set are stunning, they are full of detail including full length running boards and decorated brass hardware. The locomotive (photo 2) also featured destination boards: Ruhr – Schnellverkehr.

Siding: to describe the brilliant running performance of this loco type in ‘Z’ as anything less than superlative would be a mistake. If you are new to collecting Marklin Z steam this loco type in any example is highly recommended: perfection on the rails!

 

Pilot Wheels: Legacy in Marklin Z

Marklin 88092 with two wheel leading truck.

With the invention of the steam locomotive in the 19th century came un-powered pilot wheels as part of its invention, they were meant to support the front end of the boiler and assist the locomotive negotiating curves. John Jervis is credited with the first locomotive design incorporating leading wheels or pilot wheels for his 1832 4-2-0 locomotive. It would be another 33 years until the design of leading wheels would be improved by William Adams, his 1865 design allowed the front bogie to slide slightly to negotiate curves and a spring mechanism to thus allow the bogie to reorient to center. A two wheel leading truck is referred to as a ‘pony’ truck, four and six wheel leading trucks are considered more stable than pony trucks for high speed service. As a point of clarification the pilot of a locomotive is located on the front of a locomotive to deflect any type obstruction which would otherwise derail the train, various designs were built into 19th and 20th century steam locomotives of a mostly filigree framework, later solid sheathing was incorporated in the streamlining of many diesel designs in the United States.

Marklin Z steam locomotives incorporate sliding lead wheel sets with a spring mechanism made of tension brass. Even in Z the leading wheels are important to running long steam locomotives successfully. It is another example of Marklin being true to the prototype even in the smallest scale.

I recently bought 88272 as ‘new dealer old stock’, it was released in the mid 2000’s as a One Time Series, it sat on a shelf for over 10 years with plenty of time for the oil to harden. I tested it at low voltage and it worked flawlessly without any hesitancy so I tried it on a large oval, the pilot wheels derailed on the first curve: hardened oil syndrome on the pilot truck pivot point as well as the trailing truck’s pivot point with no sign of hardened oil in the gearing of the driving wheels. Cleaning the loco of all the old oil and re-oiling solved the problem! Advantages with Marklin Z are the easy to diagnose and repair problems: always look for the easy answers.

After making the repair I compared the 88272 BR 42 with the 88273 BR 41 both are closely related with the same chassis and shell , leading wheels and trailing wheels on the 88273 do not include the tension brass mechanism supporting the axle on both trucks. If the slight tension created by the brass spring is too much the wheel set will deform below the surface of the driving wheels. Removing the brass tension mechanism if it is deformed or damaged is recommended, if it is left in this case derailments will ensue.

Since entering the community of Z I have been told by many that the two wheel leading truck on some Marklin Z steam locos cause derailments due to not enough weight on the front end of the locomotive, it has been advised that placing lead weights to the front end by soldering bb’s is the answer to fixing the apparent Marklin design flaw. We might all like to tinker, but as a long time collector of Marklin z gauge I found no evidence of design flaws in z by Marklin quite the opposite, I continue to marvel at locomotives and rolling stock designed for long term running characteristics which are easy to maintain and repair.

I collect Marklin mini-club as my primary railroading enterprise, but I also collect prewar Marklin 1 gauge and prewar Lionel Standard gauge. As a point of comparison I pulled out the motor and pilot wheels of my Lionel 384 from 1930. In the photos the itty bitty Marklin Z 88273 incorporates leading wheels that slide on their axle whereas the big Lionel loco restricts the leading wheels to pivot only on a vertical axis.

Photo: Lionel 384 pilot wheel and Marklin 88273: behemoth and the “Little Giant!”

Photo: Lionel 384 2-4-0 locomotive motor with driving wheels and leading wheels juxtaposed next to Marklin 88273 which incorporates a sliding axle not present in the 1930 Lionel.

I would say in closing that Marklin has already considered the leading trucks as important elements and not decoration in their design which accounts for historical accuracy and perfect operating characteristics, modification to the leading truck maybe overlooking the real problems which could be dirt or hardened oil around the pivot point or too much downward pressure from the brass tension spring. The same applies to the trailing truck. Always look for the easy answers instead of reinventing the wheel.

Good luck and have fun!

Siding: Gearing on Marklin Z gauge steam locomotives usually comprise driving wheels with connecting gears. Connecting gears are installed first followed by the driving wheels and side rods. It is a little tricky working with small parts, but the objective is to line up all of the wheel weights in correct orientation otherwise the loco will not run smoothly instead the gears will bind up. Tell those around you that you may need a 1/2 hour on your hobby or 6 hours when you make your first steam locomotive repair.

Siding: if that set of pilot wheels keeps derailing it will more than likely be dirt or hardened oil around the pivot point, pilot wheels should move freely around pivot point.