C6 Main Seal....
Thread Starter
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Fleet Mechanic
Joined: Jun 2011
Posts: 1,804
Likes: 5
From: Southern California
C6 Main Seal....
Well its started to leak on me today 
It must be leaking as i drive cuz ive noticed that i was about two quarts low and i filled it like two weeks ago about. Is there a one piece seal for this cuz the 2 piece just sounds like asking for an oil leak?
It must be leaking as i drive cuz ive noticed that i was about two quarts low and i filled it like two weeks ago about. Is there a one piece seal for this cuz the 2 piece just sounds like asking for an oil leak?
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Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Are you talking about the rear main ENGINE seal or the front TRANS seal?
The rear main for the engine is two piece, no way to make it a one piece seal. When you install it you "offset" the ends of the seal so it won't leak.
If you're refering to the trans seal, that's one piece. While you're at it, replace the front pump outer O-ring seal too.
The rear main for the engine is two piece, no way to make it a one piece seal. When you install it you "offset" the ends of the seal so it won't leak.
If you're refering to the trans seal, that's one piece. While you're at it, replace the front pump outer O-ring seal too.
Thread Starter
|
Fleet Mechanic
Joined: Jun 2011
Posts: 1,804
Likes: 5
From: Southern California
Are you talking about the rear main ENGINE seal or the front TRANS seal?
The rear main for the engine is two piece, no way to make it a one piece seal. When you install it you "offset" the ends of the seal so it won't leak.
If you're refering to the trans seal, that's one piece. While you're at it, replace the front pump outer O-ring seal too.
The rear main for the engine is two piece, no way to make it a one piece seal. When you install it you "offset" the ends of the seal so it won't leak.
If you're refering to the trans seal, that's one piece. While you're at it, replace the front pump outer O-ring seal too.
Well my dad says rear main oil seal like where the tranny mates to the block?
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
The rear main seal is your most likely culprit. But before you pull the pan and rear main cap there are a couple of things to check.
The first thing I would do is clean the back of the engine real good with a power washer then take the truck for a good drive. When you get back look and see if there are any signs of leaking from the top of the engine. Check the back of the intake manifold, the valve covers. Another possibility is the oil pan itself is leaking.
If everything else checks out, it looks like it's time to pull the pan.
The first thing I would do is clean the back of the engine real good with a power washer then take the truck for a good drive. When you get back look and see if there are any signs of leaking from the top of the engine. Check the back of the intake manifold, the valve covers. Another possibility is the oil pan itself is leaking.
If everything else checks out, it looks like it's time to pull the pan.
Thread Starter
|
Fleet Mechanic
Joined: Jun 2011
Posts: 1,804
Likes: 5
From: Southern California
The rear main seal is your most likely culprit. But before you pull the pan and rear main cap there are a couple of things to check.
The first thing I would do is clean the back of the engine real good with a power washer then take the truck for a good drive. When you get back look and see if there are any signs of leaking from the top of the engine. Check the back of the intake manifold, the valve covers. Another possibility is the oil pan itself is leaking.
If everything else checks out, it looks like it's time to pull the pan.
The first thing I would do is clean the back of the engine real good with a power washer then take the truck for a good drive. When you get back look and see if there are any signs of leaking from the top of the engine. Check the back of the intake manifold, the valve covers. Another possibility is the oil pan itself is leaking.
If everything else checks out, it looks like it's time to pull the pan.
I hate the seal. So is that the single or double gasket?
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Freshman User
Joined: Oct 2012
Posts: 28
Likes: 0
From: Orlando
As Mike said earlier, the rear main seal is a double rope seal, it needs to be offset to prevent it from leaking. Local auto parts houses usually have the tool to pull the rope around the top part of the crank, pull it down about a 1/4"-5/16" past the block surface. Ease the other half of the seal into where the 1st part of the seal was pulled thru. Carefully install the rear main cap into place with the seal setting in the groove, careful not to pinch the seal out of the groove. Torque to specs.
Hope this helps......BB
Hope this helps......BB
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Thread Starter
|
Fleet Mechanic
Joined: Jun 2011
Posts: 1,804
Likes: 5
From: Southern California
As Mike said earlier, the rear main seal is a double rope seal, it needs to be offset to prevent it from leaking. Local auto parts houses usually have the tool to pull the rope around the top part of the crank, pull it down about a 1/4"-5/16" past the block surface. Ease the other half of the seal into where the 1st part of the seal was pulled thru. Carefully install the rear main cap into place with the seal setting in the groove, careful not to pinch the seal out of the groove. Torque to specs.
Hope this helps......BB
Hope this helps......BB
And thanks MIKE!!!!
Just thought of something. Its been getting really cold here at night is it possible the seal is contracting and leaking at night?
Certified Thread Hijacker
Joined: Aug 2001
Posts: 14,441
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Use a neoprene seal and Right Stuff gasket sealer.
Clean everything as good as you can.
Install the seal.
Squirt Right Stuff into the two channels then push the side seals in.
Squish some more right stuff into the center of the side seals then jam the nails in.
Done.
Josh
Clean everything as good as you can.
Install the seal.
Squirt Right Stuff into the two channels then push the side seals in.
Squish some more right stuff into the center of the side seals then jam the nails in.
Done.
Josh
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Use a neoprene seal and Right Stuff gasket sealer.
Clean everything as good as you can.
Install the seal.
Squirt Right Stuff into the two channels then push the side seals in.
Squish some more right stuff into the center of the side seals then jam the nails in.
Done.
Josh
Clean everything as good as you can.
Install the seal.
Squirt Right Stuff into the two channels then push the side seals in.
Squish some more right stuff into the center of the side seals then jam the nails in.
Done.
Josh
Thread Starter
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Fleet Mechanic
Joined: Jun 2011
Posts: 1,804
Likes: 5
From: Southern California
Where do i find a "Neoprene Seal"? I cant seem to find one.....
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
The first picture is a rope seal, the second a neoprene seal.