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Cleaning off old gasket for head install.

Old 07-03-2005, 07:42 PM
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Default Cleaning off old gasket for head install.

Hey guys how far did you scrape?? Do you need to get all the color off of just the gasket. I still got some off coloring and I've been going at it for an hour or so on one side.
Old 07-03-2005, 08:03 PM
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You probably won't have to get all of the coloring off. Just scrape it very meticulously until it is ABSOLUTELY smooth on your fingers. It should be so thin it's nearly transparent.
Old 07-03-2005, 08:08 PM
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Agreed. GM always said that the surface only had to be clean and smooth, not shiney.
Old 07-03-2005, 09:36 PM
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use scotchbrite and brake cleaner and it'll be nice and clean.

dave
Old 07-03-2005, 10:15 PM
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That's a fun job isn't it? Man, what a pain!! I got mine down to where there were black shadows in a few places but it was smooth. I used a razor blade mostly. I tried Scotch Brite in a few places but didn't care for it, seemed to fall apart to much. Wipe it down good with brake cleaner as stated above to get it real clean. Also, keep a shop vac running close by to catch the chunks of gaskets.
Old 07-03-2005, 11:36 PM
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Originally Posted by Y2K SS
Hey guys how far did you scrape?? Do you need to get all the color off of just the gasket. I still got some off coloring and I've been going at it for an hour or so on one side.
and speaking from experience,you can't clean the bores too much.you cannot be too clean.i just did my second head swap and a couple of cylinders had slight scoring in them from the first swap,and i thought i did a good job cleaning the first time


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