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Old 11-07-2023, 09:19 PM   #10
elgyqc
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Join Date: Sep 2018
Location: Laval QC
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Quote:
Originally Posted by The Radium King View Post
yeah, adding washers (ie compressing the spring) doesn't change the rating of the spring. springs are rated at # / ". ie, it will take 40 lbs of force to compress a 40 #/" spring one inch. it will take another 40 lbs to compress it the next inch. ie, a total 80 lbs to compress two inches.

so, while the washers compressed your spring (and reduced amount of available travel) you didn't change the force required to compress the spring.
Hmm, I have always assumed that as a spring is compressed resistance to the compression increases, but I understand what you are saying. My relationship with springs will be changed forever.

My initial observation that the oil pressure at idle has increased a bit with the new spring seems to be true after a bit more running time. I will be changing that spring in all my engines and in my friend Tony's car.
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Last edited by elgyqc; 11-07-2023 at 09:20 PM. Reason: added info
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