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Grip It & Rip It
Join Date: Apr 2005
Location: SoCal
Posts: 1,225
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Gasket and RTV advice
I replaced the vanos in my e36. I scraped off the paper gasket from the front the head with a razor blade and installed a new steel gasket with the new vanos. I didn't do a good enough job removing the old material and now it leaks
 So lesson learned, I ordered some gasket remover and a plastic scraper and a new oem gasket. RTV is not called for in the installation.....BUT....is it a good idea to lightly coat some RTV on gasket from the head to the gasket for extra insurance? I'll really like to get some advice on sealing against leaks b/c I DO NOT want to do this job a 3rd time. Thx!
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82 911SC (sold) |
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06-04-2013, 05:10 PM
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Friend of Warren
Join Date: Oct 2000
Location: Lincoln, NE
Posts: 16,494
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The two mating surfaces have to be absolutely clean and smooth to prevent leaks, as you have discovered. Just do it right the second time around.
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Kurt V No more Porsches, but a revolving number of motorcycles. |
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06-04-2013, 05:36 PM
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Grip It & Rip It
Join Date: Apr 2005
Location: SoCal
Posts: 1,225
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i'm a little worried i marred the surface with the blades. Will a few scratches in the aluminum cause a leak?
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82 911SC (sold) |
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06-04-2013, 05:45 PM
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A flexible gasket will be okay with shallower scratches. Persoanlly I like non hardening type sealants like Hylomar for these applications.
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Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits |
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06-04-2013, 05:49 PM
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Registered
Join Date: Oct 2004
Posts: 15,612
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Or Curil-T.
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06-04-2013, 05:52 PM
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Grip It & Rip It
Join Date: Apr 2005
Location: SoCal
Posts: 1,225
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is a steel gasket flexible? So i would put a real light coating of Curil or Hylomar on both sides of the gasket?
thx so much for the advice!
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06-04-2013, 06:05 PM
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Misunderstood User
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If the steel gasket is rubber coated or has a rubber foam, it does not need RTV.
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Jim 1983 944n/a 2003 Mercedes CLK 500 - totaled. Sanwiched on the Kennedy Expressway |
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06-04-2013, 06:32 PM
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Grip It & Rip It
Join Date: Apr 2005
Location: SoCal
Posts: 1,225
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i think it has a coating..
I think i'll clean the surfaces completely and try again.
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06-04-2013, 07:44 PM
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Registered
Join Date: Mar 2008
Posts: 1,082
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I do these all the time.
Make sure the surfaces are really clean and coat the gaskets lightly with hylomar. Also, don't forget a little dab of hylomar on the seams where it meet the cylinder head before you replace the valve cover. |
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06-04-2013, 08:02 PM
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Grip It & Rip It
Join Date: Apr 2005
Location: SoCal
Posts: 1,225
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cool I will get some hylomar....thanks for the info! Any other tips on sealing the valve cover?
Quote:
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82 911SC (sold) |
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06-04-2013, 08:22 PM
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Hell Belcho
Join Date: Sep 2006
Location: Oz
Posts: 9,249
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Coming from a poster named edge - mar..
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Saved by the buoyancy of citrus. |
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06-04-2013, 09:55 PM
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You do not have permissi
Join Date: Aug 2001
Location: midwest
Posts: 39,908
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Unstead of steel, I've used a brass scraper followed by a nylon roll-lock on a drill (sends chunks everywhere though). A little softer.
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06-05-2013, 05:24 AM
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Grip It & Rip It
Join Date: Apr 2005
Location: SoCal
Posts: 1,225
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Quote:
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82 911SC (sold) |
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06-05-2013, 06:12 AM
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1970 Porsche 911 S 
