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> Performance Isky Cam, establishing valve lash setting
Joseph Mills
post Aug 25 2004, 01:26 PM
Post #1


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Why do "performance" cams with greater lift/duration specify greater valve lash? Is it a performance gain, or durability, longevity gain?

I just recently received the cam specs for my engine from the PO. It shows valve clearance should be set at:

.013N
.015X

This just seems really loose! Is this for very high rpm?

The engine is a 75 2.0 with 44IDF's, Euro P/C's, Mallory dizzy & CD, and has Iskendarian cam, lifters, pushrods & springs.

I just recently had some headwork done and replaced the valves. Should I use the above specs instead of .006/.008?


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Joseph Mills   Performance Isky Cam   Aug 25 2004, 01:26 PM
SLITS   1. Since you are producing more heat, the expansi...   Aug 25 2004, 02:03 PM
Joseph Mills   So I presume the valves will be VERY noisy when co...   Aug 25 2004, 02:17 PM
SLITS   They are gonna make more noise. Adjustment interv...   Aug 25 2004, 03:38 PM
Joseph Mills   Thanks Ron. I'm doing them now.   Aug 25 2004, 04:22 PM
Jake Raby   That lash is way too much! What material are ...   Aug 25 2004, 07:52 PM
seanery   I thought you were fishing!   Aug 25 2004, 07:58 PM
Jake Raby   I'm leaving in the mornin'......   Aug 25 2004, 08:10 PM
Joseph Mills  
 

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