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Ford Tractors Discussion Forum
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Re: 3500 Fuel Issue

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jaluhn

01-01-2013 19:39:49
198.228.217.147



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Understand the point you're getting at, but why would you have to redo the timing just for having removed the head? I did not do anything that would have changed the pluger or sleeve positions in the head and was careful to retain all of the shims in the proper positions.
I'll admit I've never heard of spill timing but I was able to find some info on it, and it does make sense.
However, that still leaves the main issue - the lack of any injection. My guess is that I've still got some sort of delivery valve issues.
Next step is going to be probably pulling the pump back off and doing some more bench testing. I should have a pop tester setup in the next few days, and I should be able to use that setup to bench test the pump output pressure too. I'll probably also try to do a spill timing procedure on it now that I know about that.

I understand the point you're making about the cost of messing up the fuel system, however I don't have the budget to do the full professional rebuild and nothing that complicated about working on these.... just need to be very careful, cautious and meticulous. For a backyard ranch tractor I serious doubt it's ever going to get run hard enough to cause serious damage even with the timing off a bit. Turns out my pickup was running about 5* advanced for over 10k miles and it doesn't seem to have hurt that motor.
Beyond that, honestly it'd cost me less to rebuild the motor again than getting the injection system overhauled.

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RodInNS

01-01-2013 19:56:57
216.118.158.123



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 Re: 3500 Fuel Issue in reply to jaluhn, 01-01-2013 19:39:49  
It's a while since I read theory on those pumps... but as I recall the settings can change with head removal....
If you intend to keep screwing with it yourself at least get a Ford service manual for the tractor that will cover the pump setup. Don't get an I&T book because it won't cover the pump.
To me tho... the MOST important thing to the operation of that engine is the pump and injector setup.

Rod

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