Has this ever happened to you?

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Old May 29, 2011 | 09:54 PM
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Originally Posted by 1971BB427
I don't think the balancer bolt does anything to hold the crankshaft pulley on, so it wouldn't matter if it was tight or loose if only the pulley came off.
Sure it does. Lower pulley has a flange that fits into the harmonic damper center hole, and is held onto the damper with three bolts. Then the center crank bolt goes in, which sandwiches the pulley and damper to the crank. Lower pulley doesn't have a pass-through hole for the center bolt. You would have to lose all the bolts to lose the pulley.
 
Old May 29, 2011 | 10:08 PM
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Originally Posted by Camaro 69
Sure it does. Lower pulley has a flange that fits into the harmonic damper center hole, and is held onto the damper with three bolts. Then the center crank bolt goes in, which sandwiches the pulley and damper to the crank. Lower pulley doesn't have a pass-through hole for the center bolt. You would have to lose all the bolts to lose the pulley.
Well your post made me think I was losing my mind, since it was just a few months ago that I had the lower pulley off the 327 in my Austin. So I just went out to check it again, and sure enough the large center bolt's washer does not cover the lower pulley. I can remove the 3 retaining bolts and pull the pulley without doing anything to the center bolt and washer. There's a good 1/8" gap between the washer and the edge of the pulley opening.
 
Old May 29, 2011 | 10:43 PM
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The balancer bolt cannot go in until the pulley is on. The washer does hold the pulley as well. After looking at this some more the threads in the crankshaft pulled out. So now the engine has to come back out. It has only been in for a few weeks. On top of everything the clutch went out last night as well.
 
Old May 29, 2011 | 11:35 PM
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Originally Posted by quick78
The balancer bolt cannot go in until the pulley is on. The washer does hold the pulley as well. After looking at this some more the threads in the crankshaft pulled out. So now the engine has to come back out. It has only been in for a few weeks. On top of everything the clutch went out last night as well.
Must be different than my 327.
Well the engine doesn't have to come out to repair the threads on the crank snout. You can use a right angle drill to drill and tap for the next larger size bolt, which should be 1/2"NF. May not even have to drill first, as the existing hole might be large enough to just run the 1/2"NF tap into, then replace with a larger grade 8 bolt and washer. (or drill the existing washer out)
 
Old May 30, 2011 | 12:00 AM
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quick78, you didn't use the crank bolt to pull the damper on, did you? Doing that puts a lot of pulling stress on the crank threads, and can strip them out. You want to use a harmonic damper install tool.
 
Old May 30, 2011 | 12:32 AM
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Originally Posted by 1971BB427
Must be different than my 327.
You may have a different pulley, or are looking at the outer accessory pulley. This stock pulley set on ebay has the additional outer pulley for A/C & PS (the right pulley with a large hole). The left pulley has the small hole, and is the one that goes on the damper first, held by the crank bolt. Chevy 327 Pulley Set for Short Water Pump with AC & PS | eBay
 
Old May 30, 2011 | 09:14 AM
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Must just be a different pulley, 'cause I only have one lower pulley, no accessories.
 
Old May 30, 2011 | 02:49 PM
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No I didn't use the balancer bolt to pull the balancer on, I used a balancer install tool. The engine will come out to be fixed, to check the end of the crank for further damage, and I will just take the engine to my machinest to make sure it is fixed right.
 
Old May 30, 2011 | 04:58 PM
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"... the crank pulley was gone, the water pump was snapped off, antifreeze everywhere, the belts were gone, and a few nice dents and dings to the hood and fenders (NOTHING MAJOR thank God)..."

LOL. Noting major?

Uh, that would be "major" in my book, or close to it.

Wild.
 
Old May 30, 2011 | 08:34 PM
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I was refering too the dents in the hood. Besides I have another pulley, another water pump, more belts, more antifreeze, and if it needs it another crankshaft.
 



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