LS6 front/rear seals
Thread Starter
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
LS6 front/rear seals
Looks like both my front and rear seals are leaking - fairly badly. Verified with a long search via mirror, fiber optic cam and flashlight 
No, it's not the oil pressure sender - I already replaced it and it's dry and working.
No, it's not the oil pressure sender - I already replaced it and it's dry and working.
- Am I correct in thinking that the engine needs to come out to address these two?
- Are there any "while we're in there" things that I should be thinking about?
Burning Brakes
Joined: Feb 2019
Posts: 1,028
Likes: 377
From: SW Ohio
Looks like both my front and rear seals are leaking - fairly badly. Verified with a long search via mirror, fiber optic cam and flashlight
No, it's not the oil pressure sender - I already replaced it and it's dry and working.
No, it's not the oil pressure sender - I already replaced it and it's dry and working.
- Am I correct in thinking that the engine needs to come out to address these two?
- Are there any "while we're in there" things that I should be thinking about?
As far as "while your in there"......man, that is hard to answer. How much are you willing to spend? So many options! Fundamentally a must, would be a new harmonic balancer and replace idler pulleys and tensioners, then maybe consider water pump / thermostat depending on age and mileage. And for me, a cam / headers is also a must-do, but that is strictly a personal choice.
Last edited by CinciZ06; Jun 15, 2020 at 08:37 AM.
Thread Starter
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
160K miles; water pump was done a year or so ago, as was the idler and tensioner. The balancer (and pinning it) seems like smart money.
No headers, but I've thought a bit about a cam.
That's always the problem here; making sure you don't get a "while you're in there" thing going and all the sudden you have an expensive pile of parts. Ask me how I know ;-)
Last edited by billla; Jun 15, 2020 at 03:36 PM.
Burning Brakes
Joined: Jan 2006
Posts: 788
Likes: 105
From: Olathe Kansas
I would do the drivetrain removal to do the rear seal.. Do an updated torque converter / new clutch while there... That's all mostly labor
Do a better harmonic balancer up front. NO reason to pin it unless you are adding a supercharger.
If you want to go deeper up front, do a timing chain and oil pump.... cam is lot's more as heads have to come off'
Do a better harmonic balancer up front. NO reason to pin it unless you are adding a supercharger.
If you want to go deeper up front, do a timing chain and oil pump.... cam is lot's more as heads have to come off'
