I need help with injector timing--3 cylinder diesel

Posted by T.C. in Tx on September 16, 2012 at 19:52:23 from (70.112.21.156):

I will try to keep this as short as possible. Anyway, I acquired a 3 cylinder Long 510 diesel. The previous owner had taken the injector pump and a few parts off, but it was supposedly a running tractor that they stole parts off for another tractor. The engine is a Fiat design that is used in a lot of tractors such as White, Allis Chalmers, Hesston, etc.

Had the injector pump and injectors rebuilt. Got everything installed, bled down, etc. but can't get it to start.

Here is the problem. Somehow, the prior owner moved one of the gears so the timing marks were off. I figured out how to get it close, but there is no way to do it according to the manual without taking the entire tractor apart. Seems the engine is part of the "frame" so to remove the front cover and pan,you would have to tear off a lot of stuff.

I can fairly easily change the timing position of the injector gear. Also it is unlikely that the main timing gears to the crankshaft were moved since that was not disassembled. The gear that they moved only drives the fuel pump, but the timing mark is hard to get back to where it is correct.

So far, the best idea I have is to change the timing one tooth at a time on the injector pump and try to get it to fire. But there are a lot of teeth and nothing has worked so far. It is definitely getting fuel and lots of smoke. It will momentarily fire on ether, but will not continue running. I'm fairly certain it is just a timing issue.

Is there a shortcut to finding the correct timing? I have the manual and have read how to set it up, but that would involve a whole day of work to take the front of the tractor apart.

I would appreciate any ideas on how to get this timing issue solved.

Replies:

• Re: I need help with injector timing--3 cylinder diesel tc in Tx 18:20:38 09/17/12 (0)
• Re: I need help with injector timing--3 cylinder diesel Tony in Mass. 22:07:34 09/16/12 (0)
• Re: I need help with injector timing--3 cylinder diesel Dave in Tx 20:25:42 09/16/12 (0)

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