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Old 07-03-2011, 09:03 PM
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SBC Dampner woes

I have a 87 and newer block 4 bolt main 5.7 right hand dipstick . I bought stupid chrome timing cover and timing index and now can't get it to line up to set timing . I already thru away the stock stuff any advice

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Old 07-03-2011, 09:08 PM
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Find TDC and re-mark balancer
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Old 07-03-2011, 09:14 PM
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yeah I have tried that with no luck it always off and still can't get mark near pointer. I have done finger over number one plug hole and get close but I want exact. Anyway with out tearing stuff apart to find tdc
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Old 07-04-2011, 12:50 AM
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I think what you have is a mismatch. The small block chevy used 2 different pointer and timing mark locations. From the late 70`s and up, it used a 12 o`clock pointer and timing mark. Prior to that it used a 2 o`clock pointer and timing mark. It sounds like you have a 2 o`clock pointer and a 12 O`clock balancer and that`s why the tabs won`t line up. Or if you do have a 2 o`clock balancer and it won`t read correctly then more than likely it`s spun on it`s elaster ring. Just go to you local parts store and get a stock replacement balancer or order one from jegs or summit racing. measure the overall size of your balancer, they came in 6 3/4 inch size and 8 inch.
Or, if the original mark is still on the timing cover then it`ll be located behind the water pump and viewable by looking behind the water pump. If that tab is still there simply turn the engine over by hand, until the mark lines up with zero on the tab. Then use a scribe to mark the position of zero on the balancer at the 2 o`clock tab. Then turn the engine over by hand until the mark is at a angle that makes it accessable, then use a hacksaw blade to cut a shallow groove. Then use white, red or whichever nail polish that will show up and paint the groove you cut. If you go the new balancer route just tell the guys at the parts store it`s a 75 chevy truck with a 350. If you order it order one with the 2 o`clock position.
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Old 07-04-2011, 01:25 AM
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EZ solution

Chevrolet moved the timing marks around over the years as did the small block Fords,Professional Products has a damper with timing marks every 90 degrees to solve your problem,here are some sources and a picture and product description http://www.google.com/products/catal...d=0CDYQ8wIwAg# now you can use your aftermarket chrome cover and pointer no sweat. If you have the timing gears set at TDC you can bolt it on and pop a cold one ,set back and
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Old 07-04-2011, 06:33 AM
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Good tip Jeff, I`ll have to remember that one for future reference.
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