1 Piece Oil Pan Gasket - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ole Blue 68 · 02-07-2006, 08:13 PM

Has anyone had any problems with a one piece oil pan gasket? I got one from Summit (I think it was their "brand") and when I got it, it was a universal one with tabs on both sides for the dipstick.

Well now after swapping out engines, I got an oil leak somewhere at the back of the motor and I'm thinking it's either the oil pan or the rear main seal. I retorqued the bolts on the pan but I'm still dropping oil.

Thanks,

John

**68 Stepside** · 02-07-2006, 09:47 PM

I've used 3 Fel-Pro 1-piece gaskets with 0 problems, they've all had the dipstick tab on both sides of the gasket. Don't have a clue on the Summit brand gaskets, never used them. Hopefully it's not the rear main seal though...those tend to be "fun" to replace.

TTT for you.

Ole Blue 68 · 02-07-2006, 11:38 PM

Well I did some more research and found out that is was a Fel-Pro, not Summit brand and that they are supposed to be installed dry. We installed with RTV and now I'm thinking that might be the cause of the leak. What do you think?

And yes, I got my fingers crossed its not the rear main. Don't want to deal with that at all.

greasemonkey · 02-08-2006, 04:13 PM

Rear main's not as bad to replace as it sounds, really. On my Fel-Pro, I ended up using a little RTV because I had a new oil pan, and timing chain cover, and it was leaking oil from where the two meet. I used some RTV and never had any problems.

70rs/ss · 02-08-2006, 04:49 PM

my two pennies are unfortunately placed on the rear main. It is a pain, but not undoable. Drop the pan and unbolt the oil pump and rear main cap and there you are. Put the new one in at an angle so the the seam in the seal does not match the cap.

MylilBowTie · 02-08-2006, 05:12 PM

They are supposed to be installed dry. With the exception of a dab where the timing chain cover and block meet on both side. Then the rear main area where the one piece gasket tabs go, it needs both side just like the front.

I had to take the long road to figure out why my front crossmember kept filling up with oil. That was why, I didn't put any sealant on the timing chain cover. So that's where it leaked and ran down to drip on the crossmember and fill up the lip full of oil.

70GMCer · 02-08-2006, 05:28 PM

I used the Felpro 1 piece without any problems. I put a dab of rtv at the timing chain cover.

02-07-2006, 08:13 PM	#1
Ole Blue 68 Registered User Join Date: Aug 2005 Location: Philly Posts: 1,140	1 Piece Oil Pan Gasket Has anyone had any problems with a one piece oil pan gasket? I got one from Summit (I think it was their "brand") and when I got it, it was a universal one with tabs on both sides for the dipstick. Well now after swapping out engines, I got an oil leak somewhere at the back of the motor and I'm thinking it's either the oil pan or the rear main seal. I retorqued the bolts on the pan but I'm still dropping oil. Thanks, John

02-07-2006, 09:47 PM	#2
68 Stepside huh? Join Date: May 2000 Location: Washington, Illinois Posts: 5,690	Re: 1 Piece Oil Pan Gasket I've used 3 Fel-Pro 1-piece gaskets with 0 problems, they've all had the dipstick tab on both sides of the gasket. Don't have a clue on the Summit brand gaskets, never used them. Hopefully it's not the rear main seal though...those tend to be "fun" to replace. TTT for you. __________________ Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay

02-07-2006, 11:38 PM	#3
Ole Blue 68 Registered User Join Date: Aug 2005 Location: Philly Posts: 1,140	Re: 1 Piece Oil Pan Gasket Well I did some more research and found out that is was a Fel-Pro, not Summit brand and that they are supposed to be installed dry. We installed with RTV and now I'm thinking that might be the cause of the leak. What do you think? And yes, I got my fingers crossed its not the rear main. Don't want to deal with that at all.

02-08-2006, 04:13 PM	#4
greasemonkey Registered User Join Date: Dec 2001 Location: Pace, FL Posts: 2,155	Re: 1 Piece Oil Pan Gasket Rear main's not as bad to replace as it sounds, really. On my Fel-Pro, I ended up using a little RTV because I had a new oil pan, and timing chain cover, and it was leaking oil from where the two meet. I used some RTV and never had any problems. __________________ 1942 Master Deluxe 1969 C/10 1985 Blazer CUCV 1987 Jimmy 2004 Tahoe 2005 Silverado 1500 2005 Silverado 3500

02-08-2006, 04:49 PM	#5
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,270	Re: 1 Piece Oil Pan Gasket my two pennies are unfortunately placed on the rear main. It is a pain, but not undoable. Drop the pan and unbolt the oil pump and rear main cap and there you are. Put the new one in at an angle so the the seam in the seal does not match the cap.

02-08-2006, 05:12 PM	#6
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	Re: 1 Piece Oil Pan Gasket They are supposed to be installed dry. With the exception of a dab where the timing chain cover and block meet on both side. Then the rear main area where the one piece gasket tabs go, it needs both side just like the front. I had to take the long road to figure out why my front crossmember kept filling up with oil. That was why, I didn't put any sealant on the timing chain cover. So that's where it leaked and ran down to drip on the crossmember and fill up the lip full of oil. __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI

02-08-2006, 05:28 PM	#7
70GMCer Senior Member Join Date: Apr 2005 Location: Joppa, Maryland Posts: 4,408	Re: 1 Piece Oil Pan Gasket I used the Felpro 1 piece without any problems. I put a dab of rtv at the timing chain cover. __________________ 1997 GMC Sierra Ext 1965 Mustang



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