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how far does crank pulley sit on crank

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Old Apr 23, 2011 | 07:46 PM
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Default how far does crank pulley sit on crank

Ok, I'm finishing my cam swap and I got my pulley on but how far ? The crank an pulley line up flush on the front where bolt threads in?
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Old Apr 23, 2011 | 07:56 PM
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It's not flush where the bolt goes in. 1/8" forward on pulley.
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Old Apr 23, 2011 | 08:16 PM
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How did you get it flush? Mine is at least 1/8" from being flush. I took a metal ruler that was 1" wide and laid it on the pulley up to the steering pulley to makesure that the belt was going to track straight. Check it put.
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Old Apr 23, 2011 | 08:27 PM
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I'm sorry, I meant should it be flush ? My belt looks pretty straight. Just double checking everything.
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Old Apr 24, 2011 | 01:21 AM
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Originally Posted by blubu
It's not flush where the bolt goes in. 1/8" forward on pulley.
This is exactly how it should be.
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Old Apr 24, 2011 | 06:55 AM
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Thanks ya sir ! I primed it with the plugs out and it shot up to 45 pounds off the starter. I think it's ready to start.
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Old Apr 24, 2011 | 09:37 AM
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Here you go, from the service manual.


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Last edited by vettenuts; Feb 11, 2012 at 06:49 AM.
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Old Feb 10, 2012 | 09:29 PM
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Mine is sticking out a little more than 1/8" - is there a GM or other spec on this?
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Old Feb 11, 2012 | 02:21 PM
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Originally Posted by FastKat
Mine is sticking out a little more than 1/8" - is there a GM or other spec on this?
The service manual page shown in vettenuts' post above shows the spec as 0.094-0.176".

1/8" = 0.125", so if you're not more than 0.051" past 1/8" (i.e. not more than 0.176") then you're in spec.
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Old Feb 11, 2012 | 11:21 PM
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Ahh, for some reason those images didn't load when I initially looked at the page... weird. I hope that step of transferring over the weights isn't required. I thought that was limited to Corvettes or manual trans cars or something like that.

I got the old bolt up to about 235 lbs and it was dead on at 1/8"!
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