Placing new crank sprocket

[Eminent]

Searching this forum and the BBB i found no answer.
Should i use some sealant between crank and sprocket and spacer ring?
What i did found on this forum is to put some grease on the front seal. Do they mean just to fill up the seal with grease?
Thanks.

[jacovdw]

Rini,

The following was posted not so long ago:

Hello Paul,

Use the Indian Head between  the inside of the spacer ring and the crankshaft. You can also use a little between the outer diameter of the new seal and the opening in the block. The inside lip of the seal, which contacts the spacer ring, should be packed with grease. Permatex #2 is a good choice for the oil pan to block surface in case you need to take the pan off, but you do not need to take the pan off. Take a blade and "break" the sharp 90 degree edge off the seal opening in the block and oil pan before pressing in the new seal, this will help prevent the sharp corner from cutting up the new seal as it is installed. Lastly take a good light and make sure the inside lip of the new seal is seated on the spacer ring and not in front of it. Re-install the counter balance paying attention not to install it 180 degrees out!

Indian Head is a gasket shellac used mainly for paper gaskets.
I would think that applying the shellac between the crank and the spacer ring only would be sufficient.

If you look at the crank seal, you would see a sort of double lip that contacts the spacer ring. It is that small area between the two lips that has to be packed with grease.

Hope this answers your question.

[ja17]

Yes using some sealer between the crank and spacer ring is good insurance since oil can sneak between the spacer ring and the crankshaft and escape without even coming into contact with the main seal. Not a big leak, but enough to keep you worried. I've seen it happen more than once.

Fill the groove between the  lips of  the crankshaft main seal with grease (where the seal contacts the crankshaft spacer ring).

Light sealant is used by many techs around the outer perimeter of the seal where it presses into the bore to insure it stays in place.

Use your favorite sealant. Make sure it is oil and fuel resistant.

[Eminent]

Hmmm...when i google at Indian Head i see something real different.
I think it is not availble in the Netherlands. But something from loctite or permatex will do the same i guess.

Ok, now i know what to be packed with grease. Let's say the space between the front and back from the seal, the area that makes contact with the spacer ring.
I have two seals, one with a flange and one without. I read on this forum that it depends which oil pan is used.
The old seal is the one with the flange so i'm gonna put the same one in.

Strange i didn't found that topic, thanks for your answer!

[Eminent]

Thanks for the additional info Joe!

[Ron]

Hey Joe, and all,

I just put the pan back on, and now I read that I should have put sealant between the spacer in front of the lower timing chain gear and the crank.  I had to heat the gear and the spacer to get them on the crank.  (I had to heat them, while using a puller to get them off.)  I don't think the sealant would be very happy with the heat. 

So is this important enough to go back inside the engine?  I'd have to remove the crank again.  Maybe I just paint some sealer on the front part of that spacer ring, between it and the crank, then put on the crank pulley - which is not installed yet.

Ron

 

[Eminent]

The sprocket and spacer ring i used slide over the crank easily. In your case i think that slipping oil between the crank and spacer wouldn't happen fast.
But i could be wrong. I also put some sealer at the edge where the spacer ring contacts the sprocket. Just in case.

[Eminent]

I have another problem. When bolting the oilpan to the crankcase the front seal is pressed out. On this moment it sticks about 5mm out of the front face from the engine.
Is this normal? Is it a problem to keep it that way? The front lip of the seal should be fit over the damper i guess?

[Eminent]

Problem solved. To avoid any leaks i put some Loctite Silicon Blue on the outside of the seal. Shouldn't do that.