Need advise timing chain cover
Thread Starter
Racer
Joined: Jun 2016
Posts: 254
Likes: 67
From: Uppsala Uppland Sweden EC
2024 C6 of the Year Finalist - Modified
Need advise timing chain cover
In the middle of a upgrade cam swap, harmonic balancer and the question is should i apply any RTV sealant to any place when getting it back together, also any loctite on cam bolts red is ok ?
Any other advise while i am in there car have 65000 miles in very good condition.
Any other advise while i am in there car have 65000 miles in very good condition.
Last edited by MatsA; Jan 23, 2020 at 04:13 AM.
Burning Brakes
Joined: Feb 2019
Posts: 1,028
Likes: 377
From: SW Ohio
In the middle of a upgrade cam swap, harmonic balancer and the question is should i apply any RTV sealant to any place when getting it back together, also any loctite on cam bolts red is ok ?
Any other advise while i am in there car have 65000 miles in very good condition.
Any other advise while i am in there car have 65000 miles in very good condition.
RTV in the corners where the pan, block, and timing cover all meet and red locktite. Fwiw Permatex is making an orange now that has the holding strength of red but doesn't require heat to release like their blue.
As far as "while you're in there" stuff, it can get out of hand quick. The must do's in my mind while the timing cover is off are the timing chain, oil pump, main seal, harmonic balancer of it's never been replaced, ls7 lifters, and a trunnion upgrade kit.
Last edited by CinciZ06; Jan 23, 2020 at 06:57 AM.
Thread Starter
Racer
Joined: Jun 2016
Posts: 254
Likes: 67
From: Uppsala Uppland Sweden EC
2024 C6 of the Year Finalist - Modified
RTV in the corners where the pan, block, and timing cover all meet and red locktite. Fwiw Permatex is making an orange now that has the holding strength of red but doesn't require heat to release like their blue.
As far as "while you're in there" stuff, it can get out of hand quick. The must do's in my mind while the timing cover is off are the timing chain, oil pump, main seal, harmonic balancer of it's never been replaced, ls7 lifters, and a trunnion upgrade kit.
RTV in the corners where the pan, block, and timing cover all meet and red locktite. Fwiw Permatex is making an orange now that has the holding strength of red but doesn't require heat to release like their blue.
As far as "while you're in there" stuff, it can get out of hand quick. The must do's in my mind while the timing cover is off are the timing chain, oil pump, main seal, harmonic balancer of it's never been replaced, ls7 lifters, and a trunnion upgrade kit.
Melting Slicks
Joined: Oct 2002
Posts: 2,515
Likes: 441
From: Arizona
im also debating whether to replace the oil pump and chain too. Do these fail often?
Last edited by STRMLNE; Jan 24, 2020 at 12:29 PM.
Thread Starter
Racer
Joined: Jun 2016
Posts: 254
Likes: 67
From: Uppsala Uppland Sweden EC
2024 C6 of the Year Finalist - Modified
Drifting
Joined: May 2007
Posts: 1,547
Likes: 210
From: Huntersville, NC
TCSeal
Drifting
Joined: May 2007
Posts: 1,547
Likes: 210
From: Huntersville, NC
No words on removing. I have a Snap-On pick that is bent at a 45deg angle from the tip and I've pried them out with it. There is a neoprene seal and an integral metal shield (typical seal, basically). You need to pry on the shield and not put a scratch or gouge in the timing chain cover. There is a bit of room with the HB removed, but it still is tight up there to get your hands, head, and tools all there at the same time. The process is like porcupines making love, slow and careful. Exploded view from the FSM attached.
Replacing needs a socket just the right diameter to drive the new one in the cover with the nose of the crank sticking out an inch or so. i think you can buy a new TC with a seal installed, but that is a waste of money.
Replacing needs a socket just the right diameter to drive the new one in the cover with the nose of the crank sticking out an inch or so. i think you can buy a new TC with a seal installed, but that is a waste of money.
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Melting Slicks
Joined: Oct 2002
Posts: 2,515
Likes: 441
From: Arizona
No words on removing. I have a Snap-On pick that is bent at a 45deg angle from the tip and I've pried them out with it. There is a neoprene seal and an integral metal shield (typical seal, basically). You need to pry on the shield and not put a scratch or gouge in the timing chain cover. There is a bit of room with the HB removed, but it still is tight up there to get your hands, head, and tools all there at the same time. The process is like porcupines making love, slow and careful. Exploded view from the FSM attached.
Replacing needs a socket just the right diameter to drive the new one in the cover with the nose of the crank sticking out an inch or so. i think you can buy a new TC with a seal installed, but that is a waste of money.
Replacing needs a socket just the right diameter to drive the new one in the cover with the nose of the crank sticking out an inch or so. i think you can buy a new TC with a seal installed, but that is a waste of money.
Drifting
Joined: May 2007
Posts: 1,547
Likes: 210
From: Huntersville, NC
Well taking it off won't help all that much there is nothing to catch to push it out from behind. All you see looking out is the lip of the rubber seal. It might be easier to dig it out with it on the bench, but he will still be digging from the front. Also, he will probably need to get a SAC City centering tool to make sure the timing cover goes back on so the seal is concentric with the nose of the crank. It is said the TC can be slightly off center (I don't recall alignment pins,but there may some), At any rate go to Sac City's web site look at their tool and decide for yourself. I haven't pulled a TC in 10 years so my memory is dim.
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