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Old 3 Weeks Ago   #1
tstrohl12560
 
Join Date: Jan 2020
Posts: 27
Default Front Crank Seal

It appears that the front crank seal is leaking on my 1990 ZR1. I expect this will get expensive if I can even find someone to do it. Not sure I want the neighborhood mechanic doing either.

I am in Huntsville, AL. Any recommendations on where I should take this for repair?
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Old 3 Weeks Ago   #2
aafc
 
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Location: Ochlocknee, GA
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Default Re: Front Crank Seal

Give South Georgia Corvettes a call. Talk to Aaron Scott at 229-224-2919.
He is located in Thomasville,GA. I work with him when he needs extra help.
Or check out repair shops on Zr1netregistry.
John
1990 White/Black # 2546
one of a few 4l8OE eq ZR-1;s
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Old 3 Weeks Ago   #3
A26B
 
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Location: Arcadia,OK
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Default Re: Front Crank Seal

From Huntsville, AL, the closest professional shop for C4 ZR-1/LT5 service is in New Concord, KY. 233 miles ve 482.
Graham Behan, Lotus Engineer. 260-701-8860
Assigned to on-site at Mercury Marine, Stillwater, Oklahoma, to see the LT5 into production.
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1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc.
2016 Black-Red, 3LT-Z51 Auto 8-speed.
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Old 3 Weeks Ago   #4
Jagdpanzer
 
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Location: Northern VA
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Default Re: Front Crank Seal

Not an easy fix.
Engine will have too be raised significantly or removed completely to remove the crank dampener and old seal. Front seals seldom leak. Recommend double checking to confirm leak source before diving in to replace the front seal.


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Old 3 Weeks Ago   #5
WARP TEN
 
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Location: Lake Bluff, IL
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Default Re: Front Crank Seal

Quote:
Originally Posted by Jagdpanzer View Post
Not an easy fix.
Engine will have too be raised significantly or removed completely to remove the crank dampener and old seal. Front seals seldom leak. Recommend double checking to confirm leak source before diving in to replace the front seal.


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Agree with Phil. Most of the time what is thought to be a front seal leak turns out to be loose oil pan bolts. Definitely check those first. Happened to me once. I thought it was the front seal but Marc just tightened the pan bolts near the front and solved the problem. Might have to raise the engine a bit for them too, but a much easier fix if that is it. --Bob
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Old 3 Weeks Ago   #6
9T1 Red ZR1
 
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Location: Warminster, PA
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Default Re: Front Crank Seal

I had the bolt holding the crank pulley come loose and sprayed oil everywhere. I pulled the bolt, sealed the threads with blue locktite and retorqued the bolt.
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