Re: Tooth off on timing chain?........
[Re: dustergirl340]
#440247
08/16/09 09:26 PM
08/16/09 09:26 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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put your marks on TDC & see where the rotor is (whether #1 or #6) it'll be way off from the underside of the dist cap terminal. More details, what happened.
live every 24 hour block of time like it's your last day on earth
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Re: Tooth off on timing chain?........
[Re: RapidRobert]
#440248
08/16/09 09:53 PM
08/16/09 09:53 PM
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Joined: Sep 2004
Posts: 22,873 Chicken coop
dustergirl340
OP
Chicken Little
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OP
Chicken Little
Joined: Sep 2004
Posts: 22,873
Chicken coop
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Quote:
put your marks on TDC & see where the rotor is (whether #1 or #6) it'll be way off from the underside of the dist cap terminal. More details, what happened.
Already done.
We set the timing at 35* at 3,000 rpm. It has very low vacuum (9"). But if you advance the timing to 42* we can get the vacuum up to 17".
Engine has a miss between 1,800 to 2,300 rpm. The engine runs better with a lot of advance but still has that stutter.
We've ruled out vacuum leaks.
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Re: Tooth off on timing chain?........
[Re: RapidRobert]
#440249
08/16/09 09:53 PM
08/16/09 09:53 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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I think if you pull the fuel pump you can feel for the slop in the chain. Does this maybe have the phenolic top sprocket? If steel, there's very little chance that it's slipped.
Quickest way, is that IF you know where the timing is supposed to be, and it's way off, it's slipped.
Take a wrench and rotate the engine cw/ ccw against the chain "slop." If it's 10* movement or more, I'd be suspecting slippage.
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Re: Tooth off on timing chain?........
[Re: marvo451]
#440259
08/17/09 01:11 PM
08/17/09 01:11 PM
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Joined: Jan 2003
Posts: 25,200 Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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Quote:
Are you sure the harmonic balancer hasn't slipped on its rubber ring, giving you incorrect timing with the timing light?
He already stated above that the TDC mark is right on with piston position.
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Re: Tooth off on timing chain?........
[Re: dustergirl340]
#440261
08/17/09 02:55 PM
08/17/09 02:55 PM
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Joined: Dec 2007
Posts: 7,759 So Cal
HealthServices
Why would you even post that?
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Why would you even post that?
Joined: Dec 2007
Posts: 7,759
So Cal
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Did this happen after the chain set was replaced? I believe there was a run of spockets (sorry don't know which manufacter) that were mis-marked out of the box. It maybe worth it to degree your cam.
Allen
Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first.
Life was a little easier when I was just a wrench.
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Re: Tooth off on timing chain?........
[Re: dustergirl340]
#440262
08/17/09 04:26 PM
08/17/09 04:26 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
just checked, the timing chain (new chain) is dead on. Harmonic balancer is good
I could've sworn I posted this. Just exactly how did you check this?
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