i sand blasted the anodized coating off of the ribs on my 2.87 serp pulley that i am currently running. i did this about 2 years ago and it helped quite a bit with belt slip.

 

Seems like a pretty good way to get hurt...

 

Well I'm actually considering this but I would be using a long set of pliers but even then it is dangerous. Another method I'm thinking is just sanding the exposed area of the pulley while the engine is off then rotating it an inch or so and work my way around the pulley.

 

why not just pull and get it sandblasted. any place that paints or powdercoats could do it in 5 mins for a few bucks or a 6 pack of beer.

 

Well I found a place that can sand blast my pulley so I'm just going to take your guy's advice and do that. I did try to use a emery board (those things girls use to file their nails) while the engine was running, bad idea! I almost lost a finger! The pulley is spinning upwards and just wants to pull whatever you touch to it right into the belt so I would say the whole sandpaper method is way dangerous!

 

keep us updated, im very curioius.

 

I'm having my 3.12 and 2.78 both sand blasted on Monday, I will take pics. Hey what would be good to use to cover up the parts of the pulley I don't want the paint to be removed? I was thinking duct tape or masking tape.

 

Tonight I was taking my pulley off to be sandblasted so I noticed two things. First, my belt tensioner doesn't work! This is probably the reason I wasn't able to get my belt tight enough. I think the threads might be stripped but not sure as it seemed to work when I had the belt off. I'm just going to call Nissan and see about ordering a new tensioner as it looks pretty easy to change out. Secondly, when I looked closely at my 3.12 pulley I noticed a lot of rubber had built up in the grooves and this is what was causing the belt slip. I took a wire brush and cleaned the grooves out and then used sand paper rubbing alcohol a flat head screwdriver some rags and cleaned all the rubber out. This must be from all the belt slipping issues I have been having or who knows the bad tensioner. Anyway, now that I did this my issue seems to be gone and I'm going to just get a new tensioner and just sand blast when I go to my 2.78 pulley.

 

Good way to lose a finger