Gasket question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

VanceH · 06-17-2009, 09:20 AM

I have a small leak on the motor i picked up. Its at the bottom of the timing chain cover and the top of the oil pan. What gasket do i need to replace?

Thanks
Vance

glock35ipsc · 06-17-2009, 10:02 AM

I'd do both. Did someone do an in-frame cam swap? It's most likely the rubber seal on the timing cover that seals the cover at the corners of the oil pan. It's a very common leak when someone does a cam swap.

You could try to loosen up the pan bolts so it will drop down a little, then install the timing cover first, then tighten the pan back up.

*** Edit - I see you said it's on a motor "I picked up". In that case, I would definitely go ahead and replace both the oil pan and timing cover gaskets while it's out of the vehicle. Much easier to do it now, and it's cheap insurance against another possible leak.

6772owner · 06-17-2009, 10:02 AM

I would recommend the Fel-Pro one piece oil pan gasket as well, I used it and it never leaked on me.

VanceH · 06-17-2009, 10:07 AM

Thanks i think ill replace both. Every nut and bolt on this motor was finger tight. I tightned all of them up and it really slowed the leak.
Thanks

VanceH · 06-17-2009, 10:12 AM

ok next question. Looking at the motor it looks like the gap between the time chain cover and oil pan takes one gasket. Is it the same gasket in both sets?? Or is there acutually two diff gaskets? I hope that makes sense

Vance

Tx Firefighter · 06-17-2009, 10:21 AM

That rubber end seal will be included with the oil pan gasket set. There are actually two different front rubber gaskets used depending on the oil pan. Felpro gaskets come with both of them and how to measure your pan to determine which of the two to use.

VanceH · 06-17-2009, 10:22 AM

Thanks Tx!!

haysonj · 06-17-2009, 10:25 AM

Quote:

Originally Posted by VanceH

ok next question. Looking at the motor it looks like the gap between the time chain cover and oil pan takes one gasket. Is it the same gasket in both sets?? Or is there acutually two diff gaskets? I hope that makes sense Vance

If its the 350 there are two different oil pans and you will need to know which oil pan you have. usually the gasket set comes with both seals.
Sorry I missed your point the two different seals are at the rear of the engine. The two seals you're talking about should be the same

VanceH · 06-17-2009, 10:50 AM

Sweet time to head to the autozone!!! with any luck shell be running by the weekend!!

06-17-2009, 09:20 AM	#1
VanceH Loving the Jimmster Join Date: Jun 2008 Location: Emmett, idaho Posts: 575	Gasket question I have a small leak on the motor i picked up. Its at the bottom of the timing chain cover and the top of the oil pan. What gasket do i need to replace? Thanks Vance

06-17-2009, 10:02 AM	#2
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,684	Re: Gasket question I'd do both. Did someone do an in-frame cam swap? It's most likely the rubber seal on the timing cover that seals the cover at the corners of the oil pan. It's a very common leak when someone does a cam swap. You could try to loosen up the pan bolts so it will drop down a little, then install the timing cover first, then tighten the pan back up. * Edit - I see you said it's on a motor "I picked up". In that case, I would definitely go ahead and replace both the oil pan and timing cover gaskets while it's out of the vehicle. Much easier to do it now, and it's cheap insurance against another possible leak. __________________ Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!!** 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE Last edited by glock35ipsc; 06-17-2009 at 10:04 AM.

06-17-2009, 10:02 AM	#3
6772owner Gearhead Join Date: Jan 2008 Location: Colorado Posts: 1,193	Re: Gasket question I would recommend the Fel-Pro one piece oil pan gasket as well, I used it and it never leaked on me. __________________ 2002 Saturn SL2, My D/D 2019 Ford Fusion SE, Ecoboost - Wife's D/D 1993 Camaro Z28, A4, CAI, Cat-Back Exhaust Project C10 (my 72' C10 w/96' LT1, 700R4, bagged F&R, 18's (for now), Short/Fleet) -- SOLD! Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=313644 Last edited by 6772owner; 06-17-2009 at 10:04 AM. Reason: text

06-17-2009, 10:07 AM	#4
VanceH Loving the Jimmster Join Date: Jun 2008 Location: Emmett, idaho Posts: 575	Re: Gasket question Thanks i think ill replace both. Every nut and bolt on this motor was finger tight. I tightned all of them up and it really slowed the leak. Thanks

06-17-2009, 10:12 AM	#5
VanceH Loving the Jimmster Join Date: Jun 2008 Location: Emmett, idaho Posts: 575	Re: Gasket question ok next question. Looking at the motor it looks like the gap between the time chain cover and oil pan takes one gasket. Is it the same gasket in both sets?? Or is there acutually two diff gaskets? I hope that makes sense Vance

06-17-2009, 10:21 AM	#6
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Gasket question That rubber end seal will be included with the oil pan gasket set. There are actually two different front rubber gaskets used depending on the oil pan. Felpro gaskets come with both of them and how to measure your pan to determine which of the two to use. __________________ I'm on the Instagram- @Gearhead_Kevin

06-17-2009, 10:22 AM	#7
VanceH Loving the Jimmster Join Date: Jun 2008 Location: Emmett, idaho Posts: 575	Re: Gasket question Thanks Tx!!

06-17-2009, 10:50 AM	#9
VanceH Loving the Jimmster Join Date: Jun 2008 Location: Emmett, idaho Posts: 575	Re: Gasket question Sweet time to head to the autozone!!! with any luck shell be running by the weekend!!



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