Oil Pan Leaking
Thread Starter
Pro
Joined: Sep 2004
Posts: 611
Likes: 0
From: Minnesota
Oil Pan Leaking
I replaced my oil pan gasket with a one piece gasket. I also replaced the rear main seal while I was at it. I did not use any gasket sealer and now it it leaking at the rear of the pan 
. Should I pull the pan off again and use some sealer? What should I use?
. Should I pull the pan off again and use some sealer? What should I use?
Melting Slicks
Joined: Jul 2004
Posts: 3,248
Likes: 48
From: westland mi
u were supposed to use silicone sealer at specific points on the gskt, in the front and back around the crankshaft at the corners. also did u use the correct torque pattern and torque? mine came out dry as a bone. it tells u on the directions where to place the sealer and the torque. remove and redo
Racer
Joined: Apr 2004
Posts: 401
Likes: 0
From: IL
Dabs of oil rated silicone in all 4 corners will seal the interface corners. Snug the 4 5/16 bolts up first then the 1/4 bolts before actually torqueing. Sorry, don't have the torque numbers handy (I should know those but been out in the sun working this morning). The fact that the gasket now has torque limiting features helps if you don't have a torque wrench. You should be able to reuse the gasket, unless it fell into the oil, then it will swell and be useless.
Later.
Later.
Burning Brakes
Joined: Jan 2004
Posts: 1,043
Likes: 4
From: Va
Are u sure it's not the new rear main seal
leaking ? I beleive you are suppose to stagger the seal halves so they don't line up with the oil pan rails in the rear and use a special sealant at the joints where the halves meet.
Also the Felpro one piece I used part#1880 said not to use any sealant at all even on the four corners.
Also the Felpro one piece I used part#1880 said not to use any sealant at all even on the four corners.
Burning Brakes
Joined: Feb 2005
Posts: 894
Likes: 91
Fel-Pro vs. Corteco (Detroit Gasket)
I just installed that particular Fel-Pro gasket on a SB we dynoed. I had a slight leak also, I changed to the Corteco 1 pc. (part #16635) and no more leaks. We do use them all (brands), but we prefer some over others. Edelbrock is using "Corteco's" on all their engines. At least they were to the best of my knowledge. Also, if you order Fel-Pro 1 pc. pan gaskets, you'd be better off ordering from the Std. (Fel-Pro) gasket catalog and not the Perf. one. Those particular part numbers (1880's/1881's) cost twice the price of the Corteco's and Fel-Pro's own perf. ones. The Corteco number covers from 1975 thru 1985, whereas you need two different numbers to cover those years with the Fel-Pro line. Thanks, Gary in N.Y.
P.S. We do place 4 "dots" of silicone in the corners, but I don't know whether it's really needed. You should also consider using Permatex's "The Right Stuff" if it's available. Since we've changed from the "original" silicone we've got no more leaks at all. There's an add'l amount of adhesive in the "The Right Stuff". We use this between the parting lines on the rear main cap also. One more issue on the rear main seal itself, if the crank seems "grooved", Corteco has a rear main seal that is "double-lipped" that works really well. Part #17274.
P.S. We do place 4 "dots" of silicone in the corners, but I don't know whether it's really needed. You should also consider using Permatex's "The Right Stuff" if it's available. Since we've changed from the "original" silicone we've got no more leaks at all. There's an add'l amount of adhesive in the "The Right Stuff". We use this between the parting lines on the rear main cap also. One more issue on the rear main seal itself, if the crank seems "grooved", Corteco has a rear main seal that is "double-lipped" that works really well. Part #17274.
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Thread Starter
Pro
Joined: Sep 2004
Posts: 611
Likes: 0
From: Minnesota
Originally Posted by b71vette
Also the Felpro one piece I used part#1880 said not to use any sealant at all even on the four corners.
Instructor
Joined: Jun 2004
Posts: 220
Likes: 0
I plan to install a Fel-Pro one piece part # 1884 R in about a week or so. Brand new sealed box with No instructions or installation kit. I called the tech line at Fel-Pro and they say it's shipped without instructions. I'll dab the 4 corners with silicone. I'd like to know more about the other manufacturer previously mentioned, Corteco ?
Thanks.
Thanks.
Burning Brakes
Joined: Feb 2005
Posts: 894
Likes: 91
Originally Posted by 69monzaredbigblock
I plan to install a Fel-Pro one piece part # 1884 R in about a week or so. Brand new sealed box with No instructions or installation kit. I called the tech line at Fel-Pro and they say it's shipped without instructions. I'll dab the 4 corners with silicone. I'd like to know more about the other manufacturer previously mentioned, Corteco ?
Thanks.
Thanks.
