22-09-2020, 06:31 PM
(21-09-2020, 12:11 PM)dickie65 Wrote: Did you soak the seal in oil for a few days before you fitted it ?
If you fit a felt seal dry it will fail almost straight away the engine starts.
(22-09-2020, 08:48 AM)David Grear Wrote: I use seal number CR 9960 or National 474250
The size is 1.00 1.686 .250
These work well as long as the pulley is not worn or the front housing that the felt wears on.
Here’s another way which works well - I speak from experience having suffered a few times with oil chucked out by the fan belt pulley.
As I see it the felt seal is designed to remain stationary and the problem starts when the felt rotates with the pulley. So the solution is to stop this happening — but how. My solution is to clean the seal housing carefully ie degrease it and then superglue the dry clean felt seal into the housing. I make sure the pulley is smooth where it fits into the felt.
Obviously everything gets saturated with oil once the engine is run for a while but the felt seal does not rotate with the pulley — at least in my experience.