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Old 04-18-2009, 10:19 AM   #93 (permalink)
wstar
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Quote:
Originally Posted by travisjb View Post
I'm guessing, but I would think that the lines and cooler would already be full of fluid, so that once the pumping starts the distance for oil to travel to cylinder heads is unchanged
Good filters have an anti-drainback valve, so I guess this comes down to: does that sandwich plate route the oil as pump->filter->cooler->engine, or pump->cooler->filter->engine? If it's the latter, then the cooler will drain back into the oil pan and need to be refilled before you flow oil to the top again (unless you add another one-way valve to the system at the sending hose to the cooler).
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