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timing marks don't match crank pulley

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Old Sep 1, 2015 | 03:11 PM
  #1  
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Default timing marks don't match crank pulley

got my timing belt done lined everything up and put the crank pully on and the TDC mark on the pully doesnt match TDC for the timing cog and cams.

help



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Old Sep 1, 2015 | 04:29 PM
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Originally Posted by gfeeley
got my timing belt done lined everything up and put the crank pully on and the TDC mark on the pully doesnt match TDC for the timing cog and cams.

help



Crank pulley seperated, outer ring with timing marks will never line up. Happened to me once and drove me nuts because I was trying to set base timing after a megasquirt install...
Old Sep 1, 2015 | 05:31 PM
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Find TDC with the dipstick in No1 so you'll know how much the outer ring have slipped.
From that knowledge you can decide if you want to run with the pulley or replace it.

The pulley marks means nothing to any sensor besides your eyes, and two dabs of white paint works well enough (and helps you to monitor the slippage).
Old Sep 1, 2015 | 05:53 PM
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Harmonic damper has failed, replace it.
Old Sep 1, 2015 | 05:56 PM
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I agree, once the rubber is cracked/separated . . . I've seen a few of these come apart at the track. It can be ugly.
Old Sep 1, 2015 | 06:04 PM
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Originally Posted by hornetball
I agree, once the rubber is cracked/separated . . . I've seen a few of these come apart at the track. It can be ugly.
Yeap. Plus the whole point of it being there is to dampen harmonics to keep the engine alive. It's damaged, it's no longer working the way it should, and thus your engine life will suffer.
Old Sep 1, 2015 | 07:27 PM
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Originally Posted by patsmx5
Harmonic damper has failed, replace it.
This
Old Sep 1, 2015 | 10:43 PM
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thanks all for timely and unanimous help. it has slipped ~75 degrees...
Old Sep 3, 2015 | 06:22 PM
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Yeah, you really can't run the car without one of those. Never been a better time to buy a good one.
Old Sep 4, 2015 | 10:58 AM
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I built an appliance to check them when I do a timing belt….surprising how many fail.
I also put a paint mark across the back for future reference.
Old Sep 4, 2015 | 05:36 PM
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Originally Posted by Rogue_LE
I also put a paint mark across the back for future reference.
That's a good idea. I need to start doing that.
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