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

Head Removal

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Old Dec 1, 2014 | 03:16 PM
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Default Head Removal

1992 LT1 - stock. Blew a head gasket in September, so I'm doing my first OVH head gasket replacement. I have a FSM.

In my excitement to get the first head off I neglected to loosen the head bolts in reverse tightening order. I cracked them each a little, then partially loosened, then removed them.

The head came off fine, and will be taken to a shop for reconditioning.

How likely is the chance that my neglect damaged the head?

Thanks,

Woody
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Old Dec 1, 2014 | 03:41 PM
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Originally Posted by woodyupstate
1992 LT1 - stock. Blew a head gasket in September, so I'm doing my first OVH head gasket replacement. I have a FSM.

In my excitement to get the first head off I neglected to loosen the head bolts in reverse tightening order. I cracked them each a little, then partially loosened, then removed them.

The head came off fine, and will be taken to a shop for reconditioning.

How likely is the chance that my neglect damaged the head?

Thanks,

Woody
i wouldn't lose sleep over it. It's more important to follow the sequence when tightening than loosening. Your head guy will check for any cracks or surface any warpage.
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Old Dec 1, 2014 | 05:04 PM
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You didn't hurt anything. I never bother with the loosening in sequence and I have never had an issue. Tightening is the important part.
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Old Dec 1, 2014 | 07:28 PM
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Phew. It's going to be a few months before things get put back together. Is there anything I should do to the exposed block during the long, cold winter? WD40 the mating surface, for example?
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Old Dec 1, 2014 | 07:36 PM
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Originally Posted by woodyupstate
Phew. It's going to be a few months before things get put back together. Is there anything I should do to the exposed block during the long, cold winter? WD40 the mating surface, for example?
Light coating of engine oil on all exposed metal and then wrap it up with the plastic saran wrap looking stuff that they use for packing freight.
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Old Dec 1, 2014 | 10:54 PM
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From: folsom california
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well, a common step that's overlooked is cleaning the surface of the block; sure you used a scraper and it appears clean, but anything "dark" is a deposit that still needs to be removed. after a through scraping, with lots of Liquid Wrench, PB Blast, or the like, try using a brass wire wheel chucked up in a drill and go over the whole thing again...you'll be surprised.

I personally like coating the exposed surfaces with grease..."cosmoline" to an earlier generation...yeah it's messy but it cleans up...and it lasts.
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Old Dec 2, 2014 | 10:27 PM
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Thanks. Will do.
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