50s Continental TD427

[M92PV4U]

I have a 50s John Hollingsworth generator powered by a naturally aspirated Continental TD427.
We have used this generator a few times with small issues like mechanical oil pressure gauge line breaking & small issues like that. Then in early 2020 it quit starting, but would run on ether.
One of our friends / customers owns a diesel shop on the way to our jobsite so we dropped it off with him as we were too busy to look into it. His conclusion was contaminated fuel.


We were in a hurry and sent the pump to a local place to be gone through, there was some kind of plunger stuck, keeping the pump from injecting fuel.
The shop cleaned up the line set & installed a temporary fuel tank.

We got a replacement tank built, because the orginal could not be economically taken apart.

Now it has only been ran on new clean diesel and we're ready to install the new fuel tank. I get it installed and fueled up and run into the same problem again, this being a few months later we sent the pump back in with the same symptoms. By this time the company that rebuild the pump moved out of state, from Ca to somewhere else, I can find out tomorrow if it's important.
They tore the pump down noted heavy varnish and re assembled it. I started asking questions and made a thread on a different forum and it was recommended that I give this machine heavy doses of power klenz id 5007. After getting the line set cleaned up again, changing the fuel pump & low pressure lines, filters & cleaning the housing that was reused everything was assembled and up and running.

 

[M92PV4U]

Fast forward to this past week and we have use for this thing again. I installed fresh batteries and tried to fire it up, no dice. It starts off of ether. I cracked the low pressure lines & the lift pump is pumping fuel. I cracked the lines to prime the injectors & nothing...
I decided to pull the Governor cover off and see what kind of shape it was in & the fuel was ruby red with no build up. Next I pulled the timing cover off of the pump & noticed that the timing mark wasn't moving... upon removing the pump I found this.

I confirmed that the injection pump is indeed locked up.


It has had problems before judging by this orange silicone
.
I don't have any literature on this engine or injection pump, but I am leaning towards tearing the pump down myself and either locating a shaft or having one built, but another seemingly major problem with this engine is that it gets oil in the cooling system.

I guess my question is; if anyone knows where to search for parts or has information on these engines it would be greatly welcomed.
I have two Motors Truck Manuals from the 50s & 60s, but they only list specifications for TD6427.
This is a crosspost from HEF, but I thought that this might be a better site to find parts and or information on this machine. As of now I have an ebay search out for another TD427.

 

[M92PV4U]

45.04 KW John R Hollingsworth Generator.

 

[NDT]

Is the pump a Bosch? A highly competent injection pump rebuilder should be able to reman it. Your oil in coolant issue could be a pinhole in the oil to water heat exchanger. The TMs for this generator exist somewhere but good luck finding them.

 

[M92PV4U]

Is the pump a Bosch? A highly competent injection pump rebuilder should be able to reman it. Your oil in coolant issue could be a pinhole in the oil to water heat exchanger. The TMs for this generator exist somewhere but good luck finding them.

I couldn't find TMs, of course I'll have to look some more. I think that I found another pump, as this one is seized up and may not be rebuildable according to some, but I can't find anything on the shaft.
Roosamaster
Hartford Machine Screw Company, Division of Standard Screw Company (Roosa Master - Stanadyne)

Model #: DGFCL635-2AQ
Serial #: 113904
Manufacturing #: TD427F-290

 

[87cr250r]

Roosamaster became Stanadyne. Very common pumps. It's not cost effective to rebuild a seized pump with new parts. Generally the pumps all have similar internals with different housings between models. If you can't find an identical housing you may find compatible internals.

 

[rickf]

I have seen oil in the coolant before but that appears to be ALL oil and no coolant. With all of the other problems I think this is a unit that has hit the mark for diminishing return. You have already spent for more than it is worth and you have no manuals or parts availability. I think you need to cut your losses and take the money you are putting towards this and buy a more modern unit with parts availability. And that fuel in the first pics looked to me like algae, do you use a biocide in your fuel?
And do you really need a set with that much capacity?

 

[M92PV4U]

I have seen oil in the coolant before but that appears to be ALL oil and no coolant. With all of the other problems I think this is a unit that has hit the mark for diminishing return. You have already spent for more than it is worth and you have no manuals or parts availability. I think you need to cut your losses and take the money you are putting towards this and buy a more modern unit with parts availability. And that fuel in the first pics looked to me like algae, do you use a biocide in your fuel?
And do you really need a set with that much capacity?

I don't have any fuel samples to check and am not familiar with algae or asphaltenes, but from what I heard algae has a organic stench and asphaltenes smells like crude or used engine oil, this stuff smelled like used oil.

Those pictures are from 2020, the current fuel is nice and clean.

The sediment seen in the drain pan is just sediment from the drain pan. We've been treating the fuel with this stuff.

Yes, we need a genset this size for what we use it for. We have purchased a replacement that is a 75KW, and it is a little more than we need, but we are tuning it up to suit our needs right now. I am hoping that someone has a pump drive shaft on their shelf that is as worthless to them as this broken down generator is to us.

 

[rickf]

Personally I use Power Service supplement but any name brand supplement will do the job. Most issues nowadays in older diesels, including vehicles, is that they have removed sulfur from the fuel. Sulfur is a lubricant. So additives that provide extra lubricant are needed. I do not see anything on that label that mentions added lubricant which leads me to believe it is more of a solvent than a lubricant. Could this have caused the problem? Don't know but it is something to think about.