Re: Damper shim?
[Re: NITROUSN]
#970524
04/10/11 04:50 PM
04/10/11 04:50 PM
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Joined: Dec 2009
Posts: 1,074
detroit, mi
POS Dakota
OP
super stock
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OP
super stock
Joined: Dec 2009
Posts: 1,074
detroit, mi
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Quote:
I think you have a mismatch on the cover and balancer. Seems to me a long ways back someone had a post with the same problem.
I could probably get a smaller diameter damper, but at this point I really dont want to if I dont have to.
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Re: Damper shim?
[Re: NITROUSN]
#970528
04/11/11 12:19 AM
04/11/11 12:19 AM
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Joined: Dec 2009
Posts: 1,074
detroit, mi
POS Dakota
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super stock
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OP
super stock
Joined: Dec 2009
Posts: 1,074
detroit, mi
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Quote:
All I can tell you is there is something wrong in the parts you are using. If the crank gears are the same width then the cover or malancer are wrong. Shimming the balancer out will mean all the other pulleys will have to be spaced out the same distance. Try to locate another cover to compare.
Actually shimming wont hurt pulley alignment at all, it will make it perfect. I'll have to add shims between balancer and crank pulley for proper alignment. I'm using a march serpentime system. And the crank pulley would have to be space out...if the timing tab wasnt in the way.
I guess my options are to get screwed for another balancer under 7 inch diameter, or have my machine shop make me the shim I need.
I dont know what else to do. 
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Re: Damper shim?
[Re: POS Dakota]
#970529
04/11/11 01:11 AM
04/11/11 01:11 AM
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Joined: Jan 2003
Posts: 74,948
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,948
U.S.S.A.
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Quote:
Quote:
All I can tell you is there is something wrong in the parts you are using. If the crank gears are the same width then the cover or malancer are wrong. Shimming the balancer out will mean all the other pulleys will have to be spaced out the same distance. Try to locate another cover to compare.
Actually shimming wont hurt pulley alignment at all, it will make it perfect. I'll have to add shims between balancer and crank pulley for proper alignment. I'm using a march serpentime system. And the crank pulley would have to be space out...if the timing tab wasnt in the way.
I guess my options are to get screwed for another balancer under 7 inch diameter, or have my machine shop make me the shim I need.
I dont know what else to do.
If that is the case then shim it out .
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Re: Damper shim?
[Re: Danan]
#970531
04/11/11 01:59 PM
04/11/11 01:59 PM
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Joined: Dec 2009
Posts: 1,074
detroit, mi
POS Dakota
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super stock
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detroit, mi
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Quote:
Bigblock340power here playing with Danans computer.
What does the gear drive Co. say about install.? Did you call the gear drive Co. about your problems? Something has to be different about the thickness or a counter sink of the crank gear. You didn't have this problem before you put the gear drive on, did you?
I didnt have this problem before. I initially had a magnum timing cover and it worked fine. Then I decided to run the LA cover to run the serpentine system I wanted. That's when I discovered the problem.
Crank gear runs the same thickness and position on the crank shoulder as any timing chain. I measured over and over to make sure.
The problem is definitely the timing tab on the cover. But is it really a problem? I mean, dampers come in so many different diameters now...and they are all listed as a "smallblock mopar damper". They dont give you all the little details. I've seen dampers in the 6ish inch range all the way to well ove 7 inches.
But one thing I did not forsee is that the magnum timing cover, and this LA cover I have now each have a timing tab that is a different distance from the crank centerline. This LA cover is closer and the magnum timing tab was further away. My balancer didnt hit.
So I figured the best way to go about it since it wont hurt my pulley alignment was to make a spacer that could sit between the crank gear and balancer hub this way the ring doesnt hit the tab.
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