Help{ Timing chain sticks
Thread Starter
Burning Brakes
Joined: Aug 2004
Posts: 1,110
Likes: 1
From: Geneseo Illinois
St. Jude Donor '06
Help{ Timing chain sticks
I am trying to put the timing chain on my newly ground 383. L-98, '90.
When the engine is turned manually, it does not stick at all during its rotation, nor does the cam. However, when i have the Cloyes double roller timing chain all attached at TDC (both 1 and 6 high--if that is right) well anyway, the chain will bind at the same point, a few degrees rotation past TDC. What does this mean? Crank gear not aligned? (Seems to be all the way in). I have put it on and off four times, same result.) need help? timing marks are lined up 12 and 6 oclock. cam bolts tight.
When the engine is turned manually, it does not stick at all during its rotation, nor does the cam. However, when i have the Cloyes double roller timing chain all attached at TDC (both 1 and 6 high--if that is right) well anyway, the chain will bind at the same point, a few degrees rotation past TDC. What does this mean? Crank gear not aligned? (Seems to be all the way in). I have put it on and off four times, same result.) need help? timing marks are lined up 12 and 6 oclock. cam bolts tight.
Drifting
Joined: Mar 2005
Posts: 1,923
Likes: 0
From: GA
There some bosses behind the cam gear the chain may be hitting on one or more of them. I had the same problem on my engine. i used a dremel tool to grind 2 of the bosses down to provide the needed clearance.
Thread Starter
Burning Brakes
Joined: Aug 2004
Posts: 1,110
Likes: 1
From: Geneseo Illinois
St. Jude Donor '06
are these the raised areas just under the top timing chain gear? I did notice one at about twelve o clock that looked as if it had been worn away." however, the back of the cam gear was fine. I will look into that. thanks!
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Last edited by dock351; Mar 27, 2005 at 09:16 PM.
Thread Starter
Burning Brakes
Joined: Aug 2004
Posts: 1,110
Likes: 1
From: Geneseo Illinois
St. Jude Donor '06
Yes. i found out the hard way, having ordered the wrong one (the holes didnt match up between the cam and the gear.) this one does.
9-3145
I sure hope it's the right one.
9-3145
I sure hope it's the right one.
Drifting
Joined: Mar 2005
Posts: 1,923
Likes: 0
From: GA
Originally Posted by dock351
are these the raised areas just under the top timing chain gear? I did notice one at about twelve o clock that looked as if it had been worn away." however, the back of the cam gear was fine. I will look into that. thanks!
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mark
