Jesel crank seal install??

[Racer18]

Small block chevy with big block snout, seal runs on the crankshaft. What is the trick to installing this without damaging the seal? Already fubarred one seal, tad bit expensive!

[mt-engines]

Take the woodruff key out first.

[R.Brown]

I've been in your position before. From memory, the issue is that the crank does not have enough of a chamfer to get the seal started. I used to make a tool for this, which pilots on the crank snout, and tapers out to the main journal diameter, giving the seal a nice gentle guide, almost makes it fun, lol.

I just had a call from an engine builder the other day, ended up selling him mine, and I'll end up making more when time allows, or the need arises.

[Racer18]

Thanks, Ryan! That is exactly the issue. The dyno adapter plates are working great by the way!

[allencr267]

Cellophane/plastic, like from a cigarette pack & a little tape to make a tapered cone, so it'll slip over the edge.
Also, does that edge that's F'ing it up have to be there, chamfer/radius it?

[Racer18]

I tried that, tried a cone drinking cup too, but the size difference is too much for anything flimsy. I cut down a rear seal install sleeve and am going to try that in the morning. Time to drink bourbon now lol.

[R.Brown]

Great news on the plates, I did not connect the dots until I saw Indiana!

The seals I used, were the two lip style from Signal Seal, for pulling vacuum, and have to go on dry, so I can't see how someone could install it without some kind of rigid install tool... but then I did a wet sump with the stock seal and it was plenty stiff as well... was glad I had the tool. Made about 10 of them and sold out thru the years.

I could machine one but you likely need it sooner than I could get it to you.