C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

LT1 pulling damper hub

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Old Sep 9, 2015 | 10:19 PM
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Default LT1 pulling damper hub

Many times in the past to pull a damper I have always removed main bolt and washer then installed bolt alone then used puller to remove damper, does this hold true on LT1s from a 95? Granted I have like no room to begin with but it seems like very excessive force to try and remove just the hub. Any insight from anyone? I think I saw a mention of a Allen bolt possibly for this engine.
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Old Sep 9, 2015 | 11:00 PM
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On the lt1 there is a very uniquely designed dampener or balancer on this engine it serves 2 purposes one as the main drive pulley and two as the dampener there are three bolts that hold it to the hub if you undo these three it will come apart into two pieces they did this so you can get to the distributor cap for service cause on the lt1 it is located behind it and the water pump
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Old Sep 9, 2015 | 11:34 PM
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Use P B plaster, I sprayed it on 2 days ago and this A.M. I worked it a little and it came right off compared to last time when force had to be used.
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Old Sep 9, 2015 | 11:44 PM
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If you run into this problem again split the radiator housing and get all that out of the way then use a hammer driver they will come right out you can pick one up at any local part house for around $20 they come in reall handy for stuck bolts I use mine so much I bought a second one just as backup
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Old Sep 10, 2015 | 01:28 AM
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Originally Posted by Corvette410
If you run into this problem again split the radiator housing and get all that out of the way then use a hammer driver they will come right out you can pick one up at any local part house for around $20 they come in reall handy for stuck bolts I use mine so much I bought a second one just as backup
It is by far the hardest front section I have ever done, feel sorry for Camaro guys. I've read and sometimes over research too much, but I've read Allen bolt heads, I've read remove engine right away its easier, yes the pb blast-btw is a godsend not wd40, and I've read a 1/4 extension 6" long and no bolt. Just making sure, and I'd rather ask than hurt a crank that I didn't need to. Thanks as always for the input. Need to get this car ready for a show I was happily forced into.
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Old Sep 10, 2015 | 01:57 AM
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Definitely a pain in the butt , good luck getting it back together for your show!
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Old Sep 10, 2015 | 08:08 AM
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Clean it good and use antizeise for next time
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Old Sep 10, 2015 | 04:26 PM
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Originally Posted by Rocky Capone
Many times in the past to pull a damper I have always removed main bolt and washer then installed bolt alone then used puller to remove damper, does this hold true on LT1s from a 95? Granted I have like no room to begin with but it seems like very excessive force to try and remove just the hub. Any insight from anyone? I think I saw a mention of a Allen bolt possibly for this engine.
are you trying to separate the balancer from the hub?
or
are you trying to pull the hub off the crankshaft snout ?
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