Author Topic: Oil Slinger (Read 1238 times)

thumper911 · « **on:** March 01, 2008, 07:56:35 PM »

I'm working on this buildup of my 2275....
I had the complete Scat kit for the new crank gear etc and had this miscelaneous washer that I didn't think too much of. It was placed in my \"to research where it was for\" pile. I now have the case sealed together and had this washer that I was thinking would be installed on the outside of the case before the pulley. I decided to look into it more and found out it's the oil slinger....and to be installed while the case is apart. DOH!
So, can I manage some other way around this slinger? ie What's a crank sand seal? Anyhow, how stupid am I for leaving out this slinger? Is this going to cause big issues once she's all fired up? It just seemed to so loose when I tried getting it installed on the crank earlier...

Advice, bashing or non, is appreciated. Thanks!

BUSDADDY · « **Reply #1 on:** March 01, 2008, 08:43:09 PM »

I left one out of a 1600 once when my father in law was bombarding me with stupid questions :wacko: (lesson learned, put down the tools when he walks in, especially when closing a case).
It hasn't leaked yet in 5 years but a sand seal is waiting on the shelf if it ever does.

It is loose on the crank during assembly, the pulley pinches it tight.
A sand seal is a rubber oil seal that either needs the case machined larger to press fit or it's mounted in a flange that will press into the existing hole in the case, both require a matching pulley and provide a positive seal instead of the open gap between the case and pulley.

thumper911 · « **Reply #2 on:** March 02, 2008, 10:02:34 AM »

Well, with your info Busdaddy and pulling some info off Samba, I decided I'm not going to let a $2 \"washer\" have the potential to ruin my engine.
So last night the engine came apart again. Better now than when she's built up to longblock or even further. I guess it's just a bunch of cleanup and making sure this slinger is on the correct way. And just to confirm this, the concave of the slinger faces out (towards the pulley)

? The \"How to Rebuild...\" book I'm using doesn't even mention this slinger....kinda odd....
Thanks again.

BUSDADDY · « **Reply #3 on:** March 02, 2008, 08:24:00 PM »

Good for you, if I had found it just after I buttoned up the case I would have done the same thing but unfortunately I didn't find it until I was cleaning up after closing the decklid, if it wasn't my own bus I wouldn't have let it slide. You're right, concave side goes away from the flywheel.