Crankshaft seal ?

[grtescpa]

I know I read about this some place on here but I can't find it again. I purchased a new gear case gasket and crankshaft seal so I could do the dowl pin job. The new seal came with very poor

instructions. Could someone tell me how this should be done properly? The kit contained 2 seals. A small black one and a large

metal covered seal with a teflon inner ring, A metal installation ring tool and a coated piece of brown paper. According to the instructions you are suppose to drill 2 holes into the old seal. {size drill ??) Pull the old seal out. (with what?) Clean the shaft and free of oil. Coat the new seal with Loctite 277 and install with

the installation tool. What about the other seal? Can the new seal be installed into the cover befor you place it back onto the engine. Even the Dodge service manual is not very clear on how things go.

Bill

 

[R.ebel]

crankseal

grtespca, yes the seal can be installed in the cover with the cover removed from the engine. If you do remove the cover, you should be able to use a large socket or punch if you don't have a socket big enough to drive the old seal out, it will come out most easily if you drive it aft or in the direction of the gears when the cover is installed, reverse direction to install the seal. The little seal is some kind of dust shield and goes on the out side. The new seal must be installed dry. Best of luck.

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[RBrush]

Crank seal install

grtescpa



I stopped by Cummins NW in Portland a couple weeks ago and asked the same questions. I'll relay what the Tech told me, and what I did.



He said to drive the new seal into the cover from the front using the metal install tool, and to leave the plastic guide in place. The seal should be flush with the lip on the cover. The plastic guide will be forced out toward the front when the cover is torqued down, and then can be pulled the rest of the way out. The small black seal is a dust guard and goes on the end of the crank, and up against the new seal when the cover is in place. The flat part goes toward the front, or on the outside. Then the Vibration Damper goes on.



I used a screw driver and hammer to drive out the old seal.



BE VERY CAREFULL NOT TO MAR THE CONTACT AREA OF THE COVER!

I cleaned the surface where the new seal will go, both cover and crank with starting fluid. (as well as the surface where the new gasket will go) I didn't use a hammer to tap the new seal into place, but instead used a vice to gently press it in. if it started to go in uneavenly, I'd reposition, and continue. Worked great.



I hope the Tech didn't lead me, and now us astray. Good luck.



Rich:



PS, If anyone see's a major error in what the Tech told me as to the intall of the new seal, PLEASE hollar SOON, I'm putting all this back togeather tomorrow. Thanks much.

 

[JStordahl]

grtescpa: I just used a screwdriver and hammer to remove the old seal after the cover was off. I went according to the service manual and installed the cover first, then started the seal. Well, I got it started crooked, couldn't get it backed off, so ended up taking all those blankey blank little cover bolts out again. I used a vice and two pieces of 2x4 to press the seal into place.

 

[grtescpa]

Re: Crank seal install

Originally posted by RBrush

grtescpa



I stopped by Cummins NW in Portland a couple weeks ago and asked the same questions. I'll relay what the Tech told me, and what I did.



He said to drive the new seal into the cover from the front using the metal install tool, and to leave the plastic guide in place. The seal should be flush with the lip on the cover. The plastic guide will be forced out toward the front when the cover is torqued down, and then can be pulled the rest of the way out. The small black seal is a dust guard and goes on the end of the crank, and up against the new seal when the cover is in place. The flat part goes toward the front, or on the outside. Then the Vibration Damper goes on.



I used a screw driver and hammer to drive out the old seal.



BE VERY CAREFULL NOT TO MAR THE CONTACT AREA OF THE COVER!

I cleaned the surface where the new seal will go, both cover and crank with starting fluid. (as well as the surface where the new gasket will go) I didn't use a hammer to tap the new seal into place, but instead used a vice to gently press it in. if it started to go in uneavenly, I'd reposition, and continue. Worked great.



I hope the Tech didn't lead me, and now us astray. Good luck.



Rich:



PS, If anyone see's a major error in what the Tech told me as to the intall of the new seal, PLEASE hollar SOON, I'm putting all this back togeather tomorrow. Thanks much.

Thanks Rich

for the info. So let me get this straight. The clear plastic ring will push out when you torque down the bolts and you can remove it? Also, What is the brown coated paper for included in the kit??

 

[samb]

Brown paper

The brown paper has a rust inhibertor in it to prevent rust. The plastic sleeve is to protect the seal surface as you install the seal. Install the sleeve so the large diamerter will go inside the cover. Once you get the cover on and the bolts snugged down you can pull the sleeve out. This prevents the seal from rolling back under and from getting cut as it goes over the end of the shaft By all means install the seal in the cover while you have it on the beench it will save you a lot of grief.



Sam B.

 

[RBrush]

grtescpa



samb covered your remaining question. I just pulled the clear plastic sleave out with a pair of pliers. It came out very easily.



AHHHHH, ya gotta love the piece of mind knowing that at least that #@%$#! KDP won't do ya wrong!



Rich

 

[grtescpa]

Re: Brown paper

Originally posted by samb

The brown paper has a rust inhibertor in it to prevent rust. The plastic sleeve is to protect the seal surface as you install the seal. Install the sleeve so the large diamerter will go inside the cover. Once you get the cover on and the bolts snugged down you can pull the sleeve out. This prevents the seal from rolling back under and from getting cut as it goes over the end of the shaft By all means install the seal in the cover while you have it on the beench it will save you a lot of grief.



Sam B.

Thanks sanb and thanks to all you guys for the speedy replys. Boy I love this TDR Web site!!!