Gasket Removal Help - Harmonic Damper
Thread Starter
Drifting
Joined: Sep 2014
Posts: 1,924
Likes: 392
From: Atlanta - - - - - Save the manuals
Gasket Removal Help - Harmonic Damper
<warning backyard mechanic >
I'm replacing the HB on my sons '98 c5 and the gaskets are easy to remove and the surfaces are easy to clean up.
BUT, BUT,
The water pump has a GM Paper(?) gasket or some aftermarket "black" glue gasket. So far nothing will soften or remove it (brake fluid, Permatex Gasket Removal, paint thinner, Acetone, etc.). I'm trying to scrape it off with a razor blade but I'm putting nicks in the aluminum of the water pump mating surfaces.
I'm not really afraid of slight nicks and scratches but I'm working on my son's car and I'd like to this correctly and be able to use the new style gaskets. (Me, I'd go old school and use gasket material with Permatex on both sides.)
Suggestions ? -- or don't worry about it ..
I'm replacing the HB on my sons '98 c5 and the gaskets are easy to remove and the surfaces are easy to clean up.
BUT, BUT,
The water pump has a GM Paper(?) gasket or some aftermarket "black" glue gasket. So far nothing will soften or remove it (brake fluid, Permatex Gasket Removal, paint thinner, Acetone, etc.). I'm trying to scrape it off with a razor blade but I'm putting nicks in the aluminum of the water pump mating surfaces.
I'm not really afraid of slight nicks and scratches but I'm working on my son's car and I'd like to this correctly and be able to use the new style gaskets. (Me, I'd go old school and use gasket material with Permatex on both sides.)
Suggestions ? -- or don't worry about it ..
Melting Slicks
Joined: Nov 1999
Posts: 2,347
Likes: 857
From: MI
Cruise-In VI Veteran
<warning backyard mechanic >
I'm replacing the HB on my sons '98 c5 and the gaskets are easy to remove and the surfaces are easy to clean up.
BUT, BUT,
The water pump has a GM Paper(?) gasket or some aftermarket "black" glue gasket. So far nothing will soften or remove it (brake fluid, Permatex Gasket Removal, paint thinner, Acetone, etc.). I'm trying to scrape it off with a razor blade but I'm putting nicks in the aluminum of the water pump mating surfaces.
I'm not really afraid of slight nicks and scratches but I'm working on my son's car and I'd like to this correctly and be able to use the new style gaskets. (Me, I'd go old school and use gasket material with Permatex on both sides.)
Suggestions ? -- or don't worry about it ..
I'm replacing the HB on my sons '98 c5 and the gaskets are easy to remove and the surfaces are easy to clean up.
BUT, BUT,
The water pump has a GM Paper(?) gasket or some aftermarket "black" glue gasket. So far nothing will soften or remove it (brake fluid, Permatex Gasket Removal, paint thinner, Acetone, etc.). I'm trying to scrape it off with a razor blade but I'm putting nicks in the aluminum of the water pump mating surfaces.
I'm not really afraid of slight nicks and scratches but I'm working on my son's car and I'd like to this correctly and be able to use the new style gaskets. (Me, I'd go old school and use gasket material with Permatex on both sides.)
Suggestions ? -- or don't worry about it ..
http://3mcollision.com/products/abrasives/bristle-discs
Cheers,
Goose
Last edited by 69; Mar 11, 2016 at 08:53 PM. Reason: add info
Instructor
Joined: Dec 2012
Posts: 214
Likes: 26
<warning backyard mechanic >
I'm replacing the HB on my sons '98 c5 and the gaskets are easy to remove and the surfaces are easy to clean up.
BUT, BUT,
The water pump has a GM Paper(?) gasket or some aftermarket "black" glue gasket. So far nothing will soften or remove it (brake fluid, Permatex Gasket Removal, paint thinner, Acetone, etc.). I'm trying to scrape it off with a razor blade but I'm putting nicks in the aluminum of the water pump mating surfaces.
I'm not really afraid of slight nicks and scratches but I'm working on my son's car and I'd like to this correctly and be able to use the new style gaskets. (Me, I'd go old school and use gasket material with Permatex on both sides.)
Suggestions ? -- or don't worry about it ..
I'm replacing the HB on my sons '98 c5 and the gaskets are easy to remove and the surfaces are easy to clean up.
BUT, BUT,
The water pump has a GM Paper(?) gasket or some aftermarket "black" glue gasket. So far nothing will soften or remove it (brake fluid, Permatex Gasket Removal, paint thinner, Acetone, etc.). I'm trying to scrape it off with a razor blade but I'm putting nicks in the aluminum of the water pump mating surfaces.
I'm not really afraid of slight nicks and scratches but I'm working on my son's car and I'd like to this correctly and be able to use the new style gaskets. (Me, I'd go old school and use gasket material with Permatex on both sides.)
Suggestions ? -- or don't worry about it ..
Thats cool though you're fixing your sons C5, my Dad mainly
bickers at me to sell mine everytime I have fix something on it lol.
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
YEP,, that BLACK gasket is a RROYAL PITA! I carefully shaved mine off with a razor blade. I also used a very sharp putty knife.
If you lay the razor blade almost FLAT and rock it side to side, it will get under the gasket and not damage the surface.
If you lay the razor blade almost FLAT and rock it side to side, it will get under the gasket and not damage the surface.
Thread Starter
Drifting
Joined: Sep 2014
Posts: 1,924
Likes: 392
From: Atlanta - - - - - Save the manuals
Fairly quick way of cleaning and leaves a perfect surface (IMHO). Thanks to all and I hope this helps someone else.
