Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#1
04-27-2006, 12:45 PM
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Re: L-72 tune up
If it is the original balancer, chances are the rubber has slipped some. Did you check where the timing marks are at TDC? That is where I would start checking things.
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Tony 55 Nomad Gasser 70 SS 427 Nova 34 Ford Sedan..Hemi powered Michigan/ Florida 
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#2
04-27-2006, 02:59 PM
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Re: L-72 tune up
Mine was the same way, the balancer was fine, it was just me over compensating for other items that were out of tune! The real test was a shot down the 1320, what felt fine on the street was like a dog on the strip
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Marlin 70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride) 69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride) 67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride)
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#3
04-28-2006, 02:29 AM
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Re: L-72 tune up
well, checked the marks at TDC and the balancer mark is dead center of the tab..I rember this from assemble but double checked anyway..balancer mark is in direct line with the keyway (correct?)..gonna check the dwell next then pull out my hair
 ..have some time tomorrow PM and will go at it again. Thanks everyone.ALbert
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1969 9566AA COPO Chevelle M-22 1969 Malibu 489 ZL-1 T-56/4.56 1969 Beaumont 540 th400 3.70 1969 Chevelle 300 Deluxe 427 ZL-1 M 22W 1970 Olds 442 W 30 2 door post 1969 Ply. GTX 426 hemi auto. Blue. 1940 Dodge pick up Durango 4X4 1968 Camaro ragtop LSA ZL1
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#4
04-28-2006, 03:24 AM
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Re: L-72 tune up
Are you checking the timing with the vacuum advance disconnected?
Disconnect the vacuum advance and set the total timing to 36*-38* at 3000 rpm. Then jazz the throttle just a little more to make sure the timing doesn't continue to advance. If it doesn't, lock the distributor down, re-connect the vacuum advance and take it for a test drive. If it does, you may want to look into having your distributor re-curved to bring the advance in by 3K. HTH. Eric
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