Measuring P to V vs valve drop @ TDC
You can still do it but it's a ton harder to compress a regular spring compared to a "pusher" spring. The pusher spring has a really soft rate so you can have enough pressure to hold the valve up but make it easy enough to compress it down by hand and check your p to v clearance.
Originally Posted by NO5.0
What If Your Heads Are Already Assembled Wtih The Springs Can You Still Check P/v Clearance?
Originally Posted by B18B1LS1
You can still do it but it's a ton harder to compress a regular spring compared to a "pusher" spring. The pusher spring has a really soft rate so you can have enough pressure to hold the valve up but make it easy enough to compress it down by hand and check your p to v clearance.
I tried saying earlier that there is kit to use for measuring PTV if you don't want to pull your heads off to clay.
We have been through this before, make sure you have an adjustable rocker arm or push rod when you do this.
If you use the stock lifter/ with a soft spring and the stock pushrod and rocker arm, what would normally become lifter preload, will now open the valve and skew the results.
If you use the stock lifter/ with a soft spring and the stock pushrod and rocker arm, what would normally become lifter preload, will now open the valve and skew the results.
Originally Posted by NO5.0
o.k. so how do you properely check p/v clearancce with an already assembled afr head?
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Originally Posted by Louis
We have been through this before, make sure you have an adjustable rocker arm or push rod when you do this.
If you use the stock lifter/ with a soft spring and the stock pushrod and rocker arm, what would normally become lifter preload, will now open the valve and skew the results.
If you use the stock lifter/ with a soft spring and the stock pushrod and rocker arm, what would normally become lifter preload, will now open the valve and skew the results.
Forgot about that, VERY important! I suck!
