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| | | | Joined: May 2010 Posts: 66 Wrench Fetcher | | Wrench Fetcher Joined: May 2010 Posts: 66 | i'm putting on a chrome diff cover on my '59 Apache and was looking for advice to making sure i have no leaks. Any wisdom or advice out there? | | | | | Joined: Apr 2005 Posts: 1,971 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 1,971 | Don't put any oil back in.  Many times I have just used a good silicone after cleaning the housing and cover real good. I like to wait until the silicone has set up a bit before putting oil back in. | | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | After you remove the original cover just make sure the carrier surface is clean for your new gasket.
Drew
| | | | | Joined: Jan 2002 Posts: 2,839 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 2,839 | If you insist on using a paper gasket, coat both sides with Hylomar or ultra black. Or just use 100% Ultra black. If you do, let it sit over night before you put oil in.
Craig My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear My truck ....... Respect The Rust If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
| | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | Craig,
Is Ultra Black a silicone sealer? Seems like a better idea than a gasket.
Drew
| | | | | Joined: Apr 2005 Posts: 1,971 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 1,971 | You don't have to goop a lot of silicone either. If you use a gasket, I rub it with the silicone with my fingers to get a light coat on the whole gasket. Then I do the same with both gasket surfaces. Remember that however much silicone squishes out, when you tighten it down, the same amount will squish in. The excess is waste and has potential to break off inside. Not so bad in a rear end, but when you have those habits and use it on an engine, you could be looking for plugged oil passages and engine failure. | | | | | Joined: Jun 2009 Posts: 2,201 Shop Shark | | Shop Shark Joined: Jun 2009 Posts: 2,201 | i'm putting on a chrome diff cover on my '59 Apache and was looking for advice to making sure i have no leaks. Any wisdom or advice out there? don't throw away your old cover, clean it up and paint it and save it to put back in a couple months when the chrome crap er I mean cap starts leaking. | | | | | Joined: May 2010 Posts: 66 Wrench Fetcher | | Wrench Fetcher Joined: May 2010 Posts: 66 | he he he Vern....not exactly the answer i was lookin' fer but an old guy has to be funny sometime! | | | | | Joined: Jan 2002 Posts: 2,839 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 2,839 | Craig,
Is Ultra Black a silicone sealer? Seems like a better idea than a gasket. Yes It is Permatex® Ultra Black® Maximum Oil Resistance RTV Silicone Gasket Maker. Infact I just used it instead of a gasket between the differential and rear axle housing a couple weeks ago. Then earlier this week, the small side plate plate (driver's side) of my newly rebuilt sm420 tranny was leaking a little so I dumped the oil removed the paper gasket, cleaned it and thinly coated it (both sides) and reinstalled it. No leaky!!!!!!
Last edited by cmayna; 11/06/2010 2:40 PM.
Craig My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear My truck ....... Respect The Rust If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
| | | | | Joined: Feb 2006 Posts: 549 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 549 | I put a chrome cover on about 2000 miles ago. A buddy of mine recommended this; http://img.photobucket.com/albums/v228/Avette4me/Temporary/DSC00102.jpg Permatex high tack gasket sealant. It’s kind of messy but with a shot of carb cleaner when you’re done cleans it up nicely. It's held up well with no leaks. For what it’s worth, I bought my cover from Patricks. It’s likely foreign, but is decently heavy and has been good so far - as I said, no leaks.
Last edited by Avette4me; 11/06/2010 2:17 PM.
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