Posted by D Slater on July 19, 2011 at 18:28:27 from (184.15.41.100):
In Reply to: 400 diesel part 2 posted by Workman on July 19, 2011 at 12:31:42:
Can't remember exactly how all the parts are placed, but B primary pump has the bypass valve that I think you mention. Small hole is a passage to the suction side of the primary pump. Any fuel that leaks past the distibutor valves is supposed to be sucked in. If a original gasket is between injection and primary pump it has a small hole for the passage both ways its installed. If someone made a gasket the holes may not be open to each other. Sump oil can get to the primary pump drive end.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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