Pop goes the chain guide
Senior Member
Joined: 12-05-2014
Posts: 3,370
From: Northern Ohio
I just wanted to update everyone on the fix.
I replaced the chain and the guides.
It runs great again.
The front guide was busted into pieces.
The timing was off quite a bit - possibly 2 or 3 teeth. I was surprised as it still idled (with a miss) and ran but at low power.
I thought for sure engine damage after seeing how far off it was, but it runs great now.
Some people who get the code and then the engine won't run must have the timing off even worst.
Steve
I replaced the chain and the guides.
It runs great again.
The front guide was busted into pieces.
The timing was off quite a bit - possibly 2 or 3 teeth. I was surprised as it still idled (with a miss) and ran but at low power.
I thought for sure engine damage after seeing how far off it was, but it runs great now.
Some people who get the code and then the engine won't run must have the timing off even worst.
Steve
What did the front guide look like? Shattered or just one break, for example? I’ve seen two versions of that guide, one marked Cloyes, that was ordered separately as a Genuine GM part and came packaged as such, and one marked GM and their part number, which came with my Cloyes timing set. Not making this up. The design of the gussetting was slightly different too.
Did you reuse the crank sprocket both times?
Thread Starter
Senior Member
Joined: 02-01-2006
Posts: 1,471
From: lockport,ny
I did put in a new tensioner. The old one seemed fine, though.
I reused the crank sprocket both times.
The front guide had broken into 3 or 4 pieces.
I didn't look at the front guide closely to compare it to the old one (or pieces of the old one!).
Steve
I reused the crank sprocket both times.
The front guide had broken into 3 or 4 pieces.
I didn't look at the front guide closely to compare it to the old one (or pieces of the old one!).
Steve
Moderator
Joined: 01-23-2009
Posts: 26,536
From: Fredericksburg,VA
I’ve seen two versions of that guide, one marked Cloyes, that was ordered separately as a Genuine GM part and came packaged as such, and one marked GM and their part number, which came with my Cloyes timing set. Not making this up. The design of the gussetting was slightly different too.
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Aug 20, 2018 06:58 PM