Engine/Transmission (1998.5 - 2002) Rear main seal

[JohnHaney]

question for those that know regarding "sleeving" the crank and using an oversized seal. I am on what will be my 4th rear main seal#@$%!(1 under warranty and what will be 3 on my tab) since the dealer nor the mechanic that has done it in the past seems to be able to figure this out. where can i get the sleeve and oversized seal from? when it's been changed in the past the leak has never really stopped it just slows down so i am assuming that the problem is a groove has been worn in the crank. any help would be appreicated.

 

[JFaughn]

There are 2 names I've seen in the past , seal saver & speedy sleeve .
They use the same size seal , but come with a press on thin metal collar to give the seal a new surface to ride on .
Look in your yellow pages for a bearing supplier .

 

[BPonci]

Cummins has a seal kit that comes with a crank saver sleeve that presses over the crank and installs the seal at the same time. Get ahold of your local cummins dealer with your engine serial # and they can get it for you.

 

[TBartlett1]

If the leak is actually from the seal and 4 new seals have leaked then I would look closely at the closure plate that the seal is mounted in. My 1st gen had a leaky rear main and after 2 new seals I found that the closure plate appeared to be off in relation to the crank center line. What I did was to remove the closure plate and install the seal while on the bench.

I then cleaned the pan gasket area very carefully so that silicone would seal properly.

I then installed the closure plate with the seal installed in it allowing the seal to position the assembly. Then carefully tighten the plate down, silicon between the plate and pan gasket and tighten the pan.

I also remember somewhere that Teflon seals in some applications need to be installed dry so they can seat to the shaft.

Hope this helps.



Tim

 

[WestTN]

The Teflon absolutely MUST be installed dry, or failure will occur in a very short time.

 

[JohnHaney]

thanks to all for the great info, i will look into all the above issues.