96CollectorLT-Score

Has anyone ever been able to change the front crank seal on an LT motor in car? I have a 96 CE LT4 and I have the front of the engine all torn apart for an Opti Replacement and I found where my oil leak has been coming from. It is definitely the Front Crank seal. Thanks!

aboatguy

I have! just remove the damper and the hub. I used a piece of all thread some washers , big socket and a nut to draw the seal into position.

I'll look for my pics.

aboatguy

96CollectorLT-Score

I have a hub/ wheel puller that will get it off but getting it on I'm not sure about. It should be keyed right? I'm about to go out in the garage and mess with it now. I have been having a hell of a time with this job with my supercharger still installed on the bracket.

96CollectorLT-Score

Any more pics? Thanks

aboatguy

The factory hub is not keyed
Pic of gnarly old seal

aboatguy

Tools I use to remove the hub




Cut down extension I use in the crank hole IOT keep the puller from bottoming out


I use an adjustable wrench to keep crank from turning when removing crank bolt






My puller extends in front of crossmember and gives room to spin the puller

aboatguy

Hub that's been on for the last 4 years or so is keyed
Super damper.



If you have a superdamper its easier to pull engine to mess with it.

Mike

96CollectorLT-Score

How do you get the Dampner off with the engine in? Its hitting on the steering rack and hub.

aboatguy

If you have a superdamper pull the engine... Stock damper will come off in the car.

I even have that written in the post you quoted.

Mike

aboatguy

Your first post insinuated it was stock.
Second post clarified that it was not. So I added this pic and the comment in red just incase that they installed a superdamper to drive your supercharger.

MIke

96CollectorLT-Score

It is a factory damper but for some reason its hitting on the rack and hub. I tried just pulling it up out and it won't go. The car is an LT4 w/ hotcam and P1sc with supporting mods.

aboatguy

Did you remove the damper before pulling the hub?

If not reinstall the hub and you should have the clearance to slip the damper out

Mike

96CollectorLT-Score

No I uninstalled the damper 1st. I pulled the car out and did a good scrubbing/degreasing for a few hours. Letting it dry tonight and I'll look at it better tomorrow in the daylight to see whats going on.

LannyL81

The ONLY way to remove the dampner off of an LT4 is to raise the engine about an inch.
Easy to do....just did this about two months ago.
Oil pan must be in place.
Loosen the the 18mm nut on the bottom of each motor mount,
Place a block of wood under the oil pan,
Use floor jack to lift engine about an inch,
Reach in and lift the dampner out,
Lower engine back into place.

To put the dampner back on, again raise the engine.

Just leave the nuts on the motor mount studs; unscrewed to the bottom of the threads.