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post #1 of 7 (permalink) Old 05-06-2013, 09:07 AM Thread Starter
 
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Chasing a few drops of oil underneath the 64 and look what I found on the crank pulley! Bolts were started cross threaded and left... which is better than run in messing up all threads or broken off, I guess. Easy fix chased threads with a tap. Had the car since Feb and put only 30 miles on it so far. Doing a closer job of inspection now. MI weather has broken & it's driving time!
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post #2 of 7 (permalink) Old 05-06-2013, 09:34 AM
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Good deal it was an easy fix.
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post #3 of 7 (permalink) Old 05-06-2013, 09:43 AM
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That's scary. I wonder what ELSE has been left loose? I'd pull the wheels, check the brakes, and HOPE they didn't go into the engine. Good luck.
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post #4 of 7 (permalink) Old 05-06-2013, 10:19 AM Thread Starter
 
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Well the engine is the main thing that's been done!
A $10k professional build in 2010, about 1,000 miles on it. That and the front suspension and steering components. Nice and new but I'm more wary now! I have new fresh painted pulley in a box of parts that's a different style. Whishfully thinking the owner swapped it out after the engine build????
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post #5 of 7 (permalink) Old 05-06-2013, 11:37 AM
 
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Pulley wants a cracker

Must be a common thing with these Pontiacs. The pulley bolts from both the 326 AND 455 had something the matter with them on mine. Never saw that in any other vehicles I've ever worked on. Had to tap holes out and go with oversized bolts. WTF!!!?????
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post #6 of 7 (permalink) Old 05-06-2013, 12:05 PM
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This could be a sign of the rubber deteriorating in the original balancer assembly, allowing the outer ring to get out of true/blance, which would vibrate the bolts loose. ....kinda like trying to dry one pillow in the clothes dryer. Keep a close eye on the balancer and bolts. New balancers are available if needed.
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post #7 of 7 (permalink) Old 05-06-2013, 12:15 PM
 
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OOOOO! On the 455, I had to redo all the bolt holes. It appeared someone put wrong bolts in. On the 326, I just chased out the holes like Piedog, and all was good. Both balancers looked great! (Not sure if you can tell much by that, though). I've been checking the tightness on the 455 every so often, but so far, so good.
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

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