Southern Pacific 9010

Mechanical Work
Page 3

-- Update November 25, 2015 --

The time came to remove the number 2 cooling hood.  It was removed primarily to allow the repair of the transmission heat exchanger.  Peninsula Crane showed up at 7:30 and the job was done by 8:30.  The hood was set on a pair of frames with motor car axles that we purpose built.  According to the scale on the crane, the hood weighed about 7000 pounds.  No sooner was the hood in the shop than Dick began preparing for the removal of the pipes remaining on the exchanger.  We have no idea what the unit weighs so we will have to come up with some sort of jacking arrangement in order to safely lower it out of its 'nest'.  We now have an interesting view of the #2 transmission and the rear of the #2 engine and it is obvious that there is a lot of cleaning to be done.

-- Update December 26, 2015 --
Our next chore was the lowering of the heat exchanger.  Having no idea of its weight, we first jacked up the hood so the angle would cause the exchanger to drain as completely as possible.  After that, we rigged up a platform suspended between two panel lifters and put the little fork lift in the center for extra security.  While quite heavy, the unit came down with no drama.

We bolted the converter feet to pieces of 2" square tubing and put straps around the body to keep the feet where they were.  The square tubing sits in channel iron, forming a track for the tubing.  We took the bolts out of the left side of the central piece and a few pulls on  the left end separated the converter into its two units.  We then removed the central piece and finally, removed the two O-ring holders.  Bill set to work measuring everything so we could begin the search for replacement O-rings.

Meanwhile, back at the rear end of the locomotive, we removed the dynastarter to get it out of the way and so it could be sent out for cleaning and refurbishing.  This will be quite an added expense but once the hood is on, access to the dynastarter is severely limited.  We have been able to locate replacement rubber coupling parts at American Vulkan in Winter Haven, Florida and should have them on hand in a couple of weeks.  It is amazing (to me) that they were in stock in the US and while very expensive, they are one less item on the long list of things to worry about.

Once the dynastarter was out of the way, cleaning began.  We found some interesting painted lettering on the transmission housing which notes the transmission model  and a number (5576) which may be a Voith factory number as it isn't the transmission serial number.  I also found pieces of an old dynastarter coupling which must have failed catastrophically. 

-- Update January 28, 2016 --
Remember the number 5576 that is painted on the transmission casing?  It is also stamped into the top and bottom covers.  The tunnel through which the #2 cardan shaft runs had a real collection of road grime and I could not stand having that beautiful new shaft in there so it and the surrounding area were cleaned.  The green color you see is a result of the green zinc chromate primer that was applied to the locomotive frame by KM.  It seems that the transmission was also primered in the same manner.  I also cleaned and painted the area between the transmission and engine.  The paint is not a primer but rather a direct-to-metal paint  Bob Z had mixed to match the original primer.  The paint on the transmission was also used on the truck gear boxes.

While cleaning and preparing the area in front of the tunnel for paint, I noticed that there is no connection between the engine crankcase and the original drain valve.  The valve in the second photo is now the engine oil drain which is a bit odd since this puts the oil drain directly above one of the axle gear boxes.  The SP modified this for some reason.  We put the connection back using hose so engine vibration would not have a chance to cause leaks.

Once all of the painting of the tunnel area was completed, we decided to install the #2 cardan shaft.  This has to be in and coupled to the transmission before the new truck is installed due to very limited access to the transmission coupling flange.  We supported the cardan shaft on one end with the fork lift and on the other with a chain hoist suspended from a structure we built on the locomotive deck.  The installation of the 882 pound shaft went rather nicely.  The rear end of the shaft is now bolted to the transmission output flange while the front end will remain suspended by a chain until the truck is installed.  The red straps seen in the photos are there to keep the sliding joint compressed.

Another completed project is the removal of all of the body suspension springs on the left side of the locomotives.  We did this because both front and rear sliding plate carriers have had water in them and are extremely rusty.  The rust has frozen the springs into their pockets and we cannot afford to be cleaning this mess when we have the locomotive hanging from 2 expensive cranes when we change the rear truck.  In addition, all 4 left rear springs are broken.  We have no explanation for why just the left rear springs are in this condition but they may have been a defective set from the spring supplier.  We plan to exchange all of these springs with the sets we got from France as they are in beautiful condition.  This will require removing both trucks from the locomotive but that just adds to the challenge on rear truck exchange day.

And finally for this update Bill is test fitting the newly manufactured #1 cardan shaft safety straps.   Melrose Metals made them  using an original Krauss Maffei drawing.  They fit perfectly and will be installed after the #1 shaft is installed.

-- Update March 04, 2016 --
While the #2 cooling hood was off, we replaced all of the flexible hydraulic hose lines for the cooling motors.  It is entirely possible that the old hoses were originals from 1964.  The old hoses had re-usable ends and we owe a great deal of thanks to our friend Steve B. for lending us his nice little hose ending machine.  3000 psi hose is not easy to work with.

Cleaning and painting the transmission continues with Denny taking the lead on the work.  There were hours of needle scaling and solvent washing prior to treatment with Rust Mort and painting.  While all this work was going on, we decided to rebuild the reversing valve group.  

With help from friends in Germany and Italy, we finally tracked down replacement o-rings for the heat exchanger.  After research on the other side of planet Earth, we were able to purchase them just 4 miles from our shop.  The trick was finding out what to purchase and for that information we are very grateful to Dirk and Lorenzo.  As soon as the converter was bolted back together, work began to put it back up in the cooling unit.

-- Update April 11, 2016 --
We received the dynastarter from the motor shop and after re-assembling the coupling, installed it back on the transmission.  Rich had rebuilt and painted the safety cover which was re-installed.  

Rich has been busy cleaning the rust out of the sliding plate carriers.  We removed all of the rusty and broken left side springs a month ago and need to have all spring pockets clean before truck change day.  This past week, Dennis joined the rust busters brigade.  Once all the rust was gone, we coated the spring pockets with Rust Mort to protect the metal.

We re-mounted the lifting rig to the newly-rebuilt resilient coupling and with the efforts of Denny and Bill, it went back on the engine crankshaft.  This was the last major job to be completed before truck installation.

-- Update April 29, 2016 --
After hours and hours of cleaning and painting, the underside of the #2 cooling unit was ready to have its piping re-installed.  In photo #1, the large pipe on the left is the heat exchanger water inlet line.  Photo #2 is the exchanger oil inlet line prior to installation and photo #3 is the same line bolted in place.  Photo #4 is of the inlet and outlet water lines to the hydraulic system heat exchanger that is mounted on the locomotive frame.  Photo #5 is of the turbo intercooler radiator collector lines and photo #6 is of these same lines bolted in place.  Photo #7 is of the exchanger oil outlet line that will attach to the transmission.  Photo #8 is of the engine radiator collector line after cleaning and painting and photo #9 is of the same line back where it belongs.  This completed work on the underside of the cooling unit.

-- Update May 18, 2016 --
Very little work has been done on the number 2 Maybach but that changed on May 14th.  With Rob here from England, it was a great time to undertake some exploration.  We decided to open the crankcase and have a look.  The most important issue was the condition of the roller main bearings.  Getting access to the bearings (and crankshaft, connecting rods, etc.) is no easy task because even though there are access doors, they are only 6x8 inches and hidden behind the motor mounts.  We tipped the engine slightly with a hydraulic jack  and were able to remove one section of motor mount.  Rob then removed 4 of the doors to reveal - an unbelievably clean crankcase interior.  Sadly, I did not take a photo of the motor mount before its removal.  We and our Maybach advisers are satisfied that the lower end is good for startup.

-- Update August 17, 2016 --
Now that the major truck work is completed, we started putting the friction dampers back on.  Rich spend hours bead blasting the parts and then Bill gave them a coat of primer and black paint.  Once dry, Bill started putting them back where they belong.  Of course, the frame areas around the damper mounts had been needle gunned and painted.

Bill and Dennis took on the job of torquing the bolts that secure the #2 cardan shaft to the transmission.  Since there is no way to access this coupling from under the truck, Dennis was forced to lay down in order reach the bolts and help Bill hold the end of the torque wrench in place.  We made a special tool for the wrench as it was not possible to use a socket.

The next item on our list was filling the engine block with water and checking for leaks.  The water inlet of the block was plugged and Bill attempted to put water one of the outlet pipes.  These pipes would normally connect to the top tanks of the radiators.  After a few seconds, the water backed up in the pipes and would not flow into the engine.  We discovered that someone had put blocking plates into the pipes.   We cannot think of any logical reason why this was done but it certainly is a curiosity.  After the plates were removed and the block began to fill, we found the main water pump leaking out of its seal - something else to fix.  I installed a piece of clear plastic tubing to act as a level gauge.  The pink color seen in the tubing is a result of adding a treatment compound to the water in order to avoid corrosion in the engine.  The Southern Pacific did a great job of water treatment and there is no rust in the engine.  We want to keep it that way.

Starting the Maybach requires that the water temperature be brought up to 90 degrees F.  The 9010 was originally equipped with diesel fired pre-heaters which were thrown out during camera car conversion.  Because the 9010 will be in a museum setting and never far from power, I decided to build an electric heater using a 10 gallon propane tank.  The heater has two 4000 watt electric heating elements, a pump and controls to manage the water temperature.  After connecting the heater and allowing it to run, I found that it provided a water temperature of 95 degrees as indicated on the gauge in the cab.  The pressure gauge is indicating the back pressure on the water but the pressure shown is only that in the line between the pump and the engine as the engine lines are open to the atmosphere.  Having the heater will help in finding leaks and the pump will be able to circulate water in the block when we attempt to start the engine.

One big issue with the engine is the injectors.  Having sat with fuel in them for over 40 years, half of them are frozen from the solidified fuel and the other half are not trust worthy.  I removed one from the #1 engine just to test the removal procedure and took the opportunity to compare the L'Orange to an EMD and Alco injector (Alco is on the left and EMD is in the center).  The L'Orange and the EMD are both unit injectors while the Alco injector requires an external pump.  I decided that working on the #2 engine would be much easier if the hood were removed so jacking bolt pads were welded to the hood frame and Dennis ran them in which raised the hood locating pins out of their holes.   Our friends at Peninsula crane sent over a unit and the hood was soon on a cart and in the shop.  The engine is certainly easier to see now.

-- Update November 25, 2016 --
Work on radiators has been progressing very slowly.  We have only 7 of the original Behr cores, all of which are damaged beyond use.  Bill  made contact with a local radiator shop, the owner of which is interested in the project and has been combining our old core ends with new cores.  Bill, Rich and I attempted to install one by hand and found that due to the limited space and the weight of the core, we could not do it.  So, I build a gadget that mounts on a fork lift blade and removes all the lifting problem.  Rich and I installed the 3 new cores we have on hand and are very pleased with the results.  

When the locomotive was converted into the camera car, the SP removed all vestiges of the original fuel system.  The pumps, filters, hoses and such are all gone.  One thing I have never understood about the original system was the lack of a fuel filter on the suction side of the pump.  I decided that I would install a pump and filter system like that found on EMD locomotives using EMD parts.  There was one significant problem with this idea:  the false floor installed in the #2 cooling room covered all of the fuel lines and that floor is 3/4" thick steel.  There is quite a greasy looking accumulation between the false floor and the actual floor so using any sort of heat producing cutting method was out.  I decided to use metal cutting blades in a specially built Milwaukee saw to do the major part of the cutting and a reciprocating saw to finish the rest.  The metal cutting blades are not meant to cut 3/4" thick steel so cutting was very slow with a lot of time given to cooling the blade.

The first cuts removed the section surrounding the #2 engine fuel suction pipe.  In the first photo, you can see where this pipe had been extended through the false floor so the camera car diesel generator could connect to it.

The next cuts exposed the #2 engine fuel pump power conduit, #1 engine pre-heater fuel suction and a fuel return line.  The connections seen in the second photo tell an interesting forensic tale.  The plugged elbow was the fuel suction line for the #1 engine pre-heater.  The left side of the "Tee" was the fuel return line for the #1 engine pre-heater and the right side was the fuel return for the #2 engine.  After cleaning the Tee, I noticed that the right side cap is bare metal and the left side cap is painted green.  The green paint could only have been applied during the 1966 upgrade which means that the piping connected to the left side was removed then.  The conclusion is that the engine pre-heaters were removed (or at least disabled) in 1966.  Evidently the Maybach engines started without pre-heating in the California weather or the Southern Pacific simply did not want to mess with them.

The next photos show cuts made to expose an area for the fuel and power lines to run.  First is a shot of the Milwaukee metal saw.  What a great gadget!!  Once the necessary metal was removed, the wall was painted, piping was installed and clamps were made and  welded to the floor.

Meanwhile, a mount for the dual filter housing and pump was constructed and installed.  Fuel is drawn from the tank through the suction side filter by the pump.  It is then sent through the pressure side filter and on to the engine.

While looking around under the false floor, I noticed that the mount for the #2 6-cylinder Westinghouse air compressor was still in place.  Also seen in the photo is the circular saw blade making its way through the false floor.

The Snyder fuel filler assemblies had been removed and replaced with pipe plugs.  Photos of the camera car do not show filler caps so this must have been done during camera car conversion.  Our good friend and project supporter Matt Monson provided us with a pair of filler assemblies for which we had to create the mounting bases.  A 4" pipe nipple that was located on Ebay was cut in half and welded to a new mounting base.  The assemblies were painted and installed on the tank filler necks.  The caps will be painted the next time I have scarlet paint in the gun.

Return To Main Page