Posted by pete 23 on September 23, 2014 at 14:04:33 from (74.33.79.62):
In Reply to: Priming oil pump posted by Joshua Rod on September 22, 2014 at 17:00:45:
When an engine is cranking you have no combustion heat burning oil off the cylinder walls and very little pressure on the rod and main bearings compared to running under power. You can also hear a definite change in the way the engine sounds while cranking when it gets oil pressure to all bearings. Cylinders get their oil from throw off from rods so the quicker they get that throw off the better. That is also the reason you don't want to let a engine idle very slow when newly over hauled or for extended periods of time anytime. This doesn't mean that an engine started right up is going to fry, it just means that over the long haul, working on many engines it is just going to average out better the quicker the oil pressure is there when it starts. Ever hear one of the very first IH V8 304 when they started up after an oil change. They knocked like crazy and more than one filling station who changed oil shut them down and scratched their head wondering what happened. IH solved the problem by making small reservoir pockets in the main journal (front one I believe). They claimed it never hurt anything , but it did alarm more than a few.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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