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timing roosamaster pump on 350D

D

DonOMN

New User
About year and a half ago, I rebuilt the continental the engine and reinstalled the roosa master pump. I'm pretty sure I timed it correctly per the owners manual. I have been working on restoring the rest of the tractor since then, and haven't had it together enough to try starting it till recently. She doesn't quite want to start, so I'm rechecking everything, including the pump timing. When I removed the little window on the side of the pump, fuel just came pouring out, far more than just draining the pump, more like draining the whole tank! The main fuel valve was shutoff. I'm guessing that the fuel might be coming from the fuel return line. Is this normal, or is there something wrong with my pump?? Thanks for any help you can offer!
 
I did not find an online parts listing for a diesel 350 so I have no way of checking what parts were used.

If the fuel return line goes to the bottom of the tank most likely there was a check valve originally installed to prevent fuel from returning to the pump. Often these check valve caused problems and the ball and spring removed. If that is the case with your tractor you may have to remove the return line from the pump and either plug it or raise it above the fuel level in the tank.
 
Owen, I think you're right, I don't recall seeing a check valve in the return line or in the fitting where the return line connects to the tank. I remember the return line fitting extended up into the tank 3 or 4 inches, so if the fuel level is above that point, it is going to leak down without a check valve. I will dig deeper into my parts manual and see if something is missing in my installation. Thanks for your help!
 
I believe the fuel return in to bottom of tank has a very long stand pipe nearly to top of tank just like the 450 diesel has and it may have broke off inside or unscrewed.
 
I took mine off a couple of times.Shoot me an e mail and I"ll think on this for a while.I"ll remember how we did it.It started right up both times.
 
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