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Old 05-14-2017, 08:58 PM
DOC DOC is offline
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Join Date: Aug 2000
Location: St. Johns FL
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Quote:
Originally Posted by Schurkey View Post
Yup, I agree.


What does that accomplish? What is the OEM relief ball size? Does shimming the spring CHANGE the relief pressure, or does it merely compensate for a smaller ball?



I never understood the concept of welding steel to cast iron. Welding iron is...difficult.

Brazing or silver-soldering makes more sense to me.
The original ball size is 5/8". There is discussion that it is very easy for a small piece of trash to get hung up on the seat and ball since there is not much room for flow. the smaller ball allows for flow and if a small piece of trash makes it through somehow it will not hold open the pressure relief ball causing a drop in oil pressure. I was taught that a .060 washer behind the ball makes up for the smaller ball.

Your are right. for me, I just hit it with the mig and it makes a small goober. never had an issue either way. It's not under any tension/stress, the idea is for it to not fall out. with vibration.