Yeah it sucks... But I did learn that the 90-93 and I guess the aspire cam sprockets are weak... My 88 sprocket is way better built, social your building a dickmeyer motor with a loppy cam then you may want to get a 88-89 cam sprocket... Or Matt said maybe the b6t or bp
Owner of Team Lightning
90 L "Peewee" B6D. Bought new May 16,1990
92 L Thunder BP G5M-R Turbo B6T electronics. Jan 2016 FOTM winner SOLD
93 L Lightning. BP
Not a user of drugs or alcohol, Just addicted to Festiva's
Well I did finally get to what actually happened... So as I was dissembling I found metal pieces under the cam.... Well it was a roller that had broke in half. So what happened was one of the roller rockers roller broke and fell bellow the cam and when the cam lobe came around it caught the cam and stopped it from spinning and that's what broke the cam sprocket.
WOW! That's not good!! You were using the Aspire rollers?
Jerry
Team Lightning
Owner of Team Lightning
90 L "Peewee" B6D. Bought new May 16,1990
92 L Thunder BP G5M-R Turbo B6T electronics. Jan 2016 FOTM winner SOLD
93 L Lightning. BP
Not a user of drugs or alcohol, Just addicted to Festiva's
So I am scrapping the roller rockers, gonna go back to mechanical rockers and Matt gonna grind me a new cam for it that's a little bit more aggressive.
Sent all the valves to Matt so he can run them in the valve machine to see if they are bent at all... All my exhaust valves hit the pistons, and looks like a few of the intake did also.
Woah. Did you check the rollers before they were installed? I know I checked mine and found one to be a little noisy and "lumpy". Not anything that a stock cam would probably have an issue with(not so far anyway), but maybe that's what happened here.
Any difference that makes no difference is no difference.
Yeah I checked every single one and they were good, so I'm not sure if it was just the aggressive cam or it just failed... But either way I have had nothing but problems with the roller rocker set up so I'm going back to mechanical. If you look at the picture of the cam you can see the path that the rollers were running on the cam... They dug into it a little bit and it was opening up my lash and started tapping so I shimmed the lash adjusters once but started getting tapping again. So in my own opinion it's just not worth the hassle... Plus with a cam for mechanical rockers Matt is going to increase my separation to broaden my torque curve and make it more aggressive.
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