IMS Install help! IMS bearing not centered - 986 Forum - The Community for Porsche Boxster & Cayman Owners

truegearhead · 05-26-2012, 04:53 PM

****************! I ddin't take the cam tensioners out. Hopefully I didn't bend anything. Does anyone know what size those wrench those tensioners need?

Jager · 05-26-2012, 05:19 PM

You needed to remove the chain tensioners... 32mm.

truegearhead · 05-26-2012, 05:25 PM

well its closer but still not dead centered. The puller might center the bearing but I'm not sure if thats a good idea. Its very close but the inside of the puller is still contacting a small part of the bearing. What do guys think I should do? Go ahead and try and pull it?

Jager · 05-26-2012, 05:28 PM

Did you put your motor at TDC and lock the crank and then the cams on one side?

truegearhead · 05-26-2012, 05:36 PM

No, the pelican article I'm using didn't mention it. I do have the lock down bolts around the IMS bearing in place now and have marked the cam shafts. Unfortunately the engine is not at TDC and I'm hesitant to turn it over with out the IMS support plate in place.

Jager · 05-26-2012, 06:00 PM

Did you remove the chain tensioners?

truegearhead · 05-26-2012, 06:09 PM

I removed the two at the back of the engine. Apparently there is a third tensioner that pelican doesn't mention? So far my internet searches haven't told me where this thing is. I did try and pull the bearing with no luck, I put quite a bit of force on it but I didn't want to go to far. How much does it take?

Jager · 05-26-2012, 06:15 PM

No need to remove the tensioner that is in the front of the motor. I see you have two set screws holding the IMS sprocket... Do you have a third set screw? If so, install it and try to center the IMS by loosening the right side a little and tightening the left side (as viewed in your picture). After you have it centered tighten them down but don't over torque them.

Jager · 05-26-2012, 07:04 PM

Quote:

Originally Posted by truegearhead

I removed the two at the back of the engine. Apparently there is a third tensioner that pelican doesn't mention? So far my internet searches haven't told me where this thing is. I did try and pull the bearing with no luck, I put quite a bit of force on it but I didn't want to go to far. How much does it take?

It will take a little force to pull the bearing, this is a machine pressed fit you are pulling out. Make sure the bearing is centered in your puller.