Supercharger oil on the pulley bolt

[rmorton]

2000 ssei. Replaced sc idler pulley #8 this weekend. After reading about the bad experiences with that bolt, I heated the bracket (not the bolt) and it came out easily. It was indeed reverse thread and wouldn’t budge before the heat, so hopefully that technique will help somebody.

Any rate, as I was putting the belt on I noticed the bolt head on the supercharger pulley bolt was glistening with a tiny bit of sc oil. No drips and the oil level in the sc was right where it should be at the bottom of the threads. Is this something I need to take care before it becomes a problem? I’ve never worked on the sc before.. just changed oil once or twice.

[96 SSEi]

clean the oil off the bolt and then drive as usual, periodically checking for more oil leaks.

[MattStrike]

Some M90's are vented from the factory, those come with the 'breather' plug on the pulley, which is a bolt with a porous center.
Others are not vented, and have a solid plastic plug.

Yours is probably vented, and the dribble of oil might be from being slightly over-filled. The vented blowers, there is a small hole in the snout drive shaft that goes all the way through it's center to where it connects up to the coupler. As long as the oil level inside remains full I wouldn't worry - just add it to the 'check on a regular basis' list to make sure it doesn't continue/get worse/etc. I'm not sure how else oil can get in that vent.