Posted by Tom McKenna on November 26, 2012 at 13:48:52 from (24.14.250.208):
1983 John Deere 8450. 5900 hrs. It will not start. Problem is fuel starvation -- will run a little on either. I cannot build any pressure on the hand priming pump, which tells me I"m not getting any diesel from the fuel tanks. I pulled the fuel line to the injector pump and no pressure or fuel when I hand prime or when I crank the engine. I will replace the glass filters, but I doubt this does any good, b/c I have never seen these clogged to the point where I get nothing thru them. There is also an in-line fuel strainer -- could it be clogged? I plan to replace this too. Parts books says there is a fuel check valve -- where it is I don"t know. Could this be stuck closed? Any other ideas out there before I start replacing parts?
Fuel tanks are full and this machine does not have the fuel / water separator device
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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