Evo died on freeway!!
Road Master
Joined: Sep 2013
Posts: 1,054
Likes: 441
From: Tejas
Had a friend who had a similar problem where it ran good at low revs but would cut out over about 2800 rpm.
Turned out to be the rotor was loose on the camshaft and would work then wobble at high rpm.
I've seen plugs not fire under compression, but never had one die because of it.
Griz
Turned out to be the rotor was loose on the camshaft and would work then wobble at high rpm.
I've seen plugs not fire under compression, but never had one die because of it.
Griz
Thread Starter
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Intermediate
Joined: Sep 2012
Posts: 30
Likes: 0
From: california
Well…. sorry for the delay but wanted to get back to you guys just so you know the outcome, checked the cup behind the ignition and it was good and in the correct spot. Then i checked compression and had no compression on either cylinder!!! That lead me to taking the cam cover off and really see what was up. FOUND---- the pinion shaft was broken just behind the gear, pushed the broken side into my cam cover and chewed it all up. Not good! so now it's on to pulling the engine out and splitting cases for a new crank. Prob gonna go with a 89inch stroker crank from S&S. Thanks for all the help out there!!
Road Warrior
Joined: Jul 2014
Posts: 1,478
Likes: 635
From: Up North
Well
. sorry for the delay but wanted to get back to you guys just so you know the outcome, checked the cup behind the ignition and it was good and in the correct spot. Then i checked compression and had no compression on either cylinder!!! That lead me to taking the cam cover off and really see what was up. FOUND---- the pinion shaft was broken just behind the gear, pushed the broken side into my cam cover and chewed it all up. Not good! so now it's on to pulling the engine out and splitting cases for a new crank. Prob gonna go with a 89inch stroker crank from S&S. Thanks for all the help out there!!
How did that happen? Sounds like something wasn't done right.
Road Warrior
Joined: Dec 2007
Posts: 1,608
Likes: 240
From: the 'ville' kentucky
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Road Warrior
Joined: Oct 2011
Posts: 1,376
Likes: 36
From: Round Rock, TX
No personal experience, but I've heard that a poor fitting cam gear (too tight) can snap a pinion shaft. It would whine pretty loud if it were that tight, I'd imagine.