Re: Re: Re: Roosemaster Diesel Injection
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Posted by Milan H. Dilworth on July 14, 1998 at 22:41:39:
In Reply to: Re: Re: Roosemaster Diesel Injection posted by dave on July 14, 1998 at 17:49:18:
plungers will not move. Quick tip: If you suspect a plugged return break loose the timing cover on the pump while it's running if it clears up you"ve found the problem without break'n a line loose. When the cover is loose the housing pressure will drop and allow the engine to run.
: : Diesel Dan ( the pump man)
: : ROOSA MASTER specialist : Hey Diesel Dan, : The return line is not plugged as I had it off and it siphoned fuel out of the tank until I lifted it higher than the tank. There is no fuel shut off lever on this pump, the shut off is controlled by putting the throttle all the way up. Does this give you any new ideas? Also, can a transfer pump problem cause this? What is involved in freeing up a plunger and is this common? : Thanks to you all for the help. Even with the fuel coming out the return line from the tank it's still possible that a chunk of something will shut the opening when the pump starts moving the fuel the opposite direction. I recently had a IH 706 with many hours which was at the stage of normally starting hard, which wouldn't even fire until I removed the tank return fitting, and blew a piece of rubber out of it. It would let fuel tickle back out too. Diesel Dan's tip is great, but I normally went to the return fitting, after seeing how the rubber seal on the timing cover could be in sad shape at times. Didn't always have my own toolbox parts inventory up to par. Also make sure your not getting fuel in the engine oil. The seal on the shaft can't take much buildup of pressure if it's in poor shape, and could've blown. No likely, but have seen it.
Dan's your man for the pump teardown! Good luck! Milan
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