Posted by tjiniowa on September 21, 2010 at 20:01:20 from (207.177.45.251):
Just finished overhauling the engine D361, with turbo. Ground crank, all bearings plastigauge .0015 to .0018, new cam, and cam bearings. Have good oil pressure when cold, but when it warms up it idles at 0 or just above. I put on a gauge with numbers to tell for sure. IF I rev it up good the pressure is close to 50 psi, then idle it down, it goes to zero, then may come up to .5 to 1 psi. The turbo is getting oil and so is the valve train. Is my oil pump the problem. Someone said relief valve, still have to remove the pump to work on that also. When I overhauled the engine I took the pump apart and cleaned it out real good. I checked the specs for tolerance around the gears, and they where within what the book said. Where should I start, do I need a rebuilt/new pump? Thanks.
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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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