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Old 11-04-2019, 08:40 PM   #14
Ronnie
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Join Date: May 2010
Location: Canada Where it snows
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Default Re: late flathead oiling?

Quote:
Originally Posted by derek costello View Post
My question is now, if I have a pressure relief valve on my oil pump why would I need one on/in the filter?

Also a modern filter...spin-on doesn't have valves in it, that I know of ??

There are many oem filters that have a bypass relief filter in them. It is there to stop oil starvation in cold weather starts and if filter becomes plugged.


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