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Other/Off-Topic => Members Rides => Chevy => Topic started by: shookie on July 12, 2009, 04:18:05 PM

Title: Oil pan gasket
Post by: shookie on July 12, 2009, 04:18:05 PM
So im going to change my oil pan on my 454 big block. I bought a new one and it came with a cork gasket. Should I use some black rtv on both sides of it then install or just install it with out the rtv?  :help:
Title: Re: Oil pan gasket
Post by: Ranger on July 12, 2009, 05:15:51 PM
I think you could just use the RTV without using the gasket, or use a very small amount on both sides to keep it in place, but you don't want to put too much or it could leak from the cork gasket moving around and pressure from the oil pumping.
Title: Re: Oil pan gasket
Post by: shookie on July 12, 2009, 05:37:11 PM
Quote from: Ranger on July 12, 2009, 05:15:51 PM
I think you could just use the RTV without using the gasket, or use a very small amount on both sides to keep it in place, but you don't want to put too much or it could leak from the cork gasket moving around and pressure from the oil pumping.
I called my uncle and he told me i should use tack just on the oil pan to help hold the gasket in place.
Thankss
Title: Re: Oil pan gasket
Post by: Ranger on July 12, 2009, 07:10:31 PM
Yeah cause there'd be no point to using the gasket if you had RTV on both sides haha, the RTV would be more of the sealer
Title: Re: Oil pan gasket
Post by: Duane on July 13, 2009, 03:20:05 AM
small strip of RTV at the four corners where the rubber seals to the cork and I've always used a very and I mean very small coating, just in case. Don't over torque either, anything more then using a 1/4 inch ratchet is to much.
Title: Re: Oil pan gasket
Post by: UncleBeaner on July 13, 2009, 09:19:00 AM
Quote from: Ranger on July 12, 2009, 05:15:51 PM
I think you could just use the RTV without using the gasket, or use a very small amount on both sides to keep it in place, but you don't want to put too much or it could leak from the cork gasket moving around and pressure from the oil pumping.

your stupid and should never work on a car ever.




if you must use the cork gasket then run thin bead around to hold gasket and put a nice daps at all four corners to ensure now leaks. if you can use the one piece rubber one. they are usally avaible for around $20 and are worth their weight in gold plus the have metal inserts in them  to they cannot be over tightened. a cork gasket can be over tightened and ruined very easy.
Title: Re: Oil pan gasket
Post by: Peelz on July 13, 2009, 09:42:32 AM
a cork gasket can be over tightened and ruined very easy.

been there, done that. :mad:

4x4 S-10 4cylinder. oil pan gasket should take 3 hours or so, took me like 2 days back when I was in high school.  :rolleyes:
Title: Re: Oil pan gasket
Post by: shookie on July 13, 2009, 11:42:40 AM
I have looked all over for the rubber and no luck :( I will try this one and if it dosent work i will be doing it again :mad: Does any one know the tq order on the pan.
Title: Re: Oil pan gasket
Post by: Peelz on July 13, 2009, 12:37:09 PM
Quote from: shookie on July 13, 2009, 11:42:40 AM
I have looked all over for the rubber and no luck :( I will try this one and if it dosent work i will be doing it again :mad:

Not worth the risk! keep looking, wouldn't want any little shookies running around.   :rofl:
Title: Re: Oil pan gasket
Post by: shookie on July 13, 2009, 12:52:06 PM
Well im going to try to find a rubber one. Im doing the rear diff today. I got a chrome rear diff that came with a paper gasket. going to buy some red rtv im hoping that works ???
Title: Re: Oil pan gasket
Post by: UncleBeaner on July 14, 2009, 11:38:09 AM
check those cheap pans for a flatness callout or you will have more issues than its worth.

http://www.summitracing.com/parts/FPP-1884R/

is you have a 2 piece rear main there you go
Title: Re: Oil pan gasket
Post by: Duane on July 14, 2009, 11:48:59 AM
Quote from: shookie on July 13, 2009, 11:42:40 AM
I have looked all over for the rubber and no luck :( I will try this one and if it dosent work i will be doing it again :mad: Does any one know the tq order on the pan.

Get them all started and seated, just till there is resistence on the threads and then start in the middle and work your way front and back. I tighten them twice using minimal torque. the corner bolts are usually larger and also have torque plates on them, but all should still be torqued the same. The one piece rubber gaskets are usually a order item and can be gotten at places like summitracing.com or jegs.com. The cork should be fine. When you see the gasket start to just squeeze out, you have plenty of pressure on the bolts.

Like I said I always run a small spread of RTV on both sides of the gasket, just barely enough to see a shean.
Title: Re: Oil pan gasket
Post by: shookie on July 14, 2009, 04:07:54 PM
Thanks Im going to try the cork one. If it doesent work hell I will get more practice time.  :rofl: I looked at the pan today and noticed that 2 bolts were missing from each side ??? Looks like they lost them and didnt replace them because theres a rtv type stuff coming out of them. Should i replace them?  :help:
Title: Re: Oil pan gasket
Post by: Duane on July 15, 2009, 04:51:55 AM
Quote from: shookie on July 14, 2009, 04:07:54 PM
Thanks Im going to try the cork one. If it doesent work hell I will get more practice time.  :rofl: I looked at the pan today and noticed that 2 bolts were missing from each side ??? Looks like they lost them and didnt replace them because theres a rtv type stuff coming out of them. Should i replace them?  :help:

Yes replace them, hopefully the threads are not broken off in the block. Also I think they are 1/4-20's thread size, something in the 1/2" to 5/8" inch in length.
Title: Re: Oil pan gasket
Post by: shookie on July 15, 2009, 08:42:22 PM
Quote from: Duane on July 15, 2009, 04:51:55 AM
Quote from: shookie on July 14, 2009, 04:07:54 PM
Thanks Im going to try the cork one. If it doesent work hell I will get more practice time.  :rofl: I looked at the pan today and noticed that 2 bolts were missing from each side ??? Looks like they lost them and didnt replace them because theres a rtv type stuff coming out of them. Should i replace them?  :help:

Yes replace them, hopefully the threads are not broken off in the block. Also I think they are 1/4-20's thread size, something in the 1/2" to 5/8" inch in length.
Thanks i will just take one of the old ones into the auto store