Crank Seal
Thread Starter
Safety Car
Joined: Aug 2006
Posts: 4,147
Likes: 452
From: Port St. Lucie West Florida
Crank Seal
I have had the seals replaced on my 95 LT1.I have replaced the water pump,opti, plugs and wires, pan gasket,crank gasket and all associated gaskets.The Corvette Mechanic did the job right and explained what he did.It seems like the crank seal is leaking (small leak).He did the job over 3 times and used GM seals the last time.The same drip.He said it may need a new hub.It is all guaranteed and will do this over again.Did this ever happen to anyone.Does anyone know why this is happening?He even showed me how the seals were pressed in correctly.
Safety Car
Joined: Feb 1999
Posts: 3,504
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From: Mexico Beach FL
If the hub has a groove worn in it, the seal will still leak.
You can use a Speedi-Sleeve (Redi-Sleeve) or go with a new hub.
I suggest reading this thread about the availability of the hub:
http://forums.corvetteforum.com/show....php?t=1677752
Tom Piper
You can use a Speedi-Sleeve (Redi-Sleeve) or go with a new hub.
I suggest reading this thread about the availability of the hub:
http://forums.corvetteforum.com/show....php?t=1677752
Tom Piper
Thread Starter
Safety Car
Joined: Aug 2006
Posts: 4,147
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From: Port St. Lucie West Florida
Thanks,
He used a stainless steel sleeve already but it still leaks-I guess the hub has a groove in it.I will order a new hub.I think that should do it(hopefully)
He used a stainless steel sleeve already but it still leaks-I guess the hub has a groove in it.I will order a new hub.I think that should do it(hopefully)
Last edited by enventr; Apr 26, 2007 at 06:05 PM.
Thread Starter
Safety Car
Joined: Aug 2006
Posts: 4,147
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From: Port St. Lucie West Florida
Tom Piper- if the leak is not corrected using a new hub,how can this be corrected.The dye in the oil showed that the leak is absolutely coming from the crank gasket.The mechanic has ordered a new hub.
Thanks for your input
Thanks for your input
Race Director
Joined: Jan 2002
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From: O'Fallon Missouri
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
The bad thing is the '92 - '95 LT1 hub is not available from GM at this time (at least when I checked a week ago it wasn't).
So, you will probably have to go with an after-market hub.
Tom Piper
So, you will probably have to go with an after-market hub.
Tom Piper
Last edited by Tom Piper; Apr 27, 2007 at 06:20 AM.
Safety Car
Joined: Feb 1999
Posts: 3,504
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From: Mexico Beach FL
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Safety Car
Joined: Feb 1999
Posts: 3,504
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From: Mexico Beach FL
There's a link on the second post on this thread -- read to the end of it.
I bought my hub from Thunder Racing -- it is a keyed after-market hub.
But, you don't have to use a key with it, but it is so easy to use a key with it that I think it would be foolish not to.
That same hub is sold by others.
I put it on last week and it works fine.
Tom Piper
Thread Starter
Safety Car
Joined: Aug 2006
Posts: 4,147
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From: Port St. Lucie West Florida
UPDATE
GM started to make new hubs again.My hub for a 95 LT1 was delivered after a 3 month backorder.I guess this is a common problem for leaks. The Vette mechanic installed this new hub today.I put on about 30 miles mostly hwy.I fluctuated the speed -top speed was 85.I let it then sit for an hour and checked under the car and so far so good-I have my fingers crossed that this did the trick.I will drive it more this week to make sure it does not leak.
thank you Tom Piper and STL94LT1
GM started to make new hubs again.My hub for a 95 LT1 was delivered after a 3 month backorder.I guess this is a common problem for leaks. The Vette mechanic installed this new hub today.I put on about 30 miles mostly hwy.I fluctuated the speed -top speed was 85.I let it then sit for an hour and checked under the car and so far so good-I have my fingers crossed that this did the trick.I will drive it more this week to make sure it does not leak.
thank you Tom Piper and STL94LT1
Thread Starter
Safety Car
Joined: Aug 2006
Posts: 4,147
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From: Port St. Lucie West Florida
Just a heads up-
if anyone is attempting to do the crank seal order a new hub.You will eliminate alot of frustrating problems and you will not have to redo the job.
if anyone is attempting to do the crank seal order a new hub.You will eliminate alot of frustrating problems and you will not have to redo the job.
