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Old 11-20-2019, 03:47 PM   #48
scottofksu
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Join Date: Nov 2011
Location: Omaha, Nebraska
Posts: 431
Re: camshaft won't last wtf !!!!!

Quote:
Originally Posted by kamkam1 View Post
Well it’s been 11 years, but I finally figured it out. I put 1.6 rockers on exhaust valves, which caused coil bind. #7 and #4 exhaust valves have shims under springs and that compounds the problems. Cam lift was to close to spring lift max, so the 1.6 rocker caused the coil bind. Thank you everyone..
Good on you for circling back to provide “the rest of the story”!
I guess the take away is calculate total lift (I.e., cam lift + rocker lift), and see if you are close to the max lift for your springs. Finding you are close, (<.05?) measure everything precisely.

How’d you figure it out?
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