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

Problems pulling the engine.

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Old Feb 27, 2017 | 06:14 PM
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Default Problems pulling the engine.

Everything went smooth up until the bell housing/pulling exhaust from the manifolds.

Is the exhaust press fit into the manifold? I have loosened the flange, pried on it, the exhaust will NOT come loose from the manifold.

My next step is sawzall, as I am junking the stock manifolds/exhaust.


Also I have the monster extension with swivel, I absolutely can not break the bolts free that connect the bell to the engine.

The only thing that might be holding me up is I am using a universal adapter onto a 9/16 socket verses a 9/16 that is built in swivel.

Any ideas? From reading these threads, apparently everyone elses bell housing bolts just walked right off.

I have the motor mounts free and lowered the engine down but I can only go so far as the oil pan catches the cross member at a certain depth.

Last edited by Powerstroked89; Feb 27, 2017 at 06:15 PM.
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Old Feb 27, 2017 | 06:27 PM
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my bellhousing bolts came off easy.

make a 50/50 mixture of atf and acetone. put it in a small oiler can. douse all bolts and the exhaust gasket and let soak.

exhaust manifold is not press fit. can you see a gasket? probably just rusted/seized. if you are junking and you have decent access personally i would cut them off and then deal with them on the engine stand.
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Old Feb 27, 2017 | 06:33 PM
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Originally Posted by VikingTrad3r
my bellhousing bolts came off easy.

make a 50/50 mixture of atf and acetone. put it in a small oiler can. douse all bolts and the exhaust gasket and let soak.

exhaust manifold is not press fit. can you see a gasket? probably just rusted/seized. if you are junking and you have decent access personally i would cut them off and then deal with them on the engine stand.
I see the gasket, it's badly rusted so it must be seized. I can get right up to it, so cutting it is no big deal at this point. I am just frustrated I can't work it out. Everything else went so smooth, I jinxed myself

Yeah the bell-housing bolts. I have extension + universal joint adapter + 9/16 6-pt + 1/2 ratchet that extends into break bar lengths. Nada.

I will definitely soak and give it another go. Putting them back in is going to be a bitch

Last edited by Powerstroked89; Feb 27, 2017 at 06:34 PM.
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Old Feb 27, 2017 | 06:36 PM
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someone may be in need of your manifold$ esp if they have the smog rails as more states get strict with their laws l
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Old Feb 27, 2017 | 06:44 PM
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Yeah. I am not cutting the manifolds just where the exhaust connects to them below the flange. So if someone can use them I'm definitely open to selling.
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Old Feb 27, 2017 | 07:51 PM
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Pulled mine last weekend-had headers so mine didn't come apart too bad but I did use a sawzall on one since the exhaust guy welded right by a bolt. I couldn't get my bellhousing bolts either so I let it on the engine and pulled it.
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Old Feb 28, 2017 | 10:25 PM
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The exhaust to remove might be a pain. If you are talking about removing post catalytic converter, undo the bolts and the slip fit connection, then info all the support straps at the trans and the differential. The next step is to undo the muffler supports. Have s floor jack handy to support the exhaust system. At that point wiggle the exhaust at the mufflers side to side s bit. Then while moving it side to side start pulling the system reward. It will eventually pull of the slip fit and come down.

Since you are using a universal, the bell housing bolts will require a bit of force to pop as well. It might help to grab your half inch breaker bar at the head and pull it towards you as you swing the bottom away from you. That should provide enough force.
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