IMS Replacement... The Jager Saga

[thstone]

Super post! Really enjoyed it. Excellent job!

Now, the real question is why this bearing was generally ok (not perfect but still working fine) after 210,000 miles when others fail at 1/10th of that mileage?

[jaykay]

Jäger you should get an award for this post ...fantastic work

....and you were using jack stands!?!

[Jager]

Originally Posted by thstone

Super post! Really enjoyed it. Excellent job!

Now, the real question is why this bearing was generally ok (not perfect but still working fine) after 210,000 miles when others fail at 1/10th of that mileage?

Thanks thstone

I would like to go back to the photo I took of inside the IMS. Per Porsche’s design of a sealed IMS bearing, oil inside the IMS is not per design correct? I wonder what Porsche’s forecast was on IMS bearing life if it maintained the grease seal?

I drive my car every day to/from work, and short trips on the weekends, averaging somewhere between 60 to 70 miles a day. With this amount of driving I’m sure my IMS bearing was maintaining a coat of motor oil keeping me off the IMS failure list.

Jager

[Jager]

Looks like a single row IMS bearing. Maybe with this RMS leak it was providing the IMS bearing additional lubrication. : )

[WhipE350]

I enjoyed the posts! Use .jpg and Bruce's server won't be so full I assume there is more to come.

[Jager]

Originally Posted by WhipE350

I enjoyed the posts! Use .jpg and Bruce's server won't be so full I assume there is more to come.

Yep, more to come. I will see how jpg look.

[Jager]

Locked the crank at TDC.

[Jager]

Locked the cam.

[Jager]

Removing the RMS… This was easy; drilled a couple of holes and installed screws. I didn’t have to pull on the screw on the left side, probably because of the mileage on this seal.

[Jager]

Installing new RMS… I used a plastic pipe cap from the local hardware store plumbing department. This plastic cap worked great and was a lot less expensive than the Porsche tool for this job.

[Jager]

Time to remove the chain tensioners and IMS bearing... This bearing was getting lots of oil.

[Jager]

For added security, to help prevent the IMS shaft from moving, I inserted set screws. I didn’t tighten these too much.

[Jager]

Removed the bearing clip.

[Perfectlap]

Excellent. Do you have a professional background in auto repair?

I just 1-upgraded my exhaust (Fabspeed), the 2-MAF and 3-AOS went kaput, 4-front shocks had to replaced, 5-front wheels straightened and refinished, 6-new tires (B'stones), 7-new brake pads went in, 8-replaced the ignition switch.....10K miles ago I had to do the 9-alternator and 10-starter, 11-O2 Sensors, 13- clutch, 14-flywheel and the 15-LN IMS unit.

[Jager]

I finished the project late this afternoon, including new motor mount installation. I also recorded some data that I am currently looking at.
The transmission installation was fairly straight forward. The trickiest part was installing the clutch slave cylinder located on the top side of the transmission. I have read other posts where guys had a hard time installing this. My trick was to install it before bolting the transmission to the motor. That way you don’t have the full load of the clutch pushing on the fork, pushing against the slave cylinder piston. The bolt holding the slave cylinder was still a challenge but got it in a lot easier than if the transmission was bolted-up.
See the bolt in the attached photo - red circle.

[Jager]

Installed new O2 sensors, the front sensors have a shorter cable than the sensor behind the catalytic converter.

[Jager]

Do you think I needed a new motor mount??

[Jager]

Originally Posted by Perfectlap

Excellent. Do you have a professional background in auto repair?

No I do not have any professional experience in auto repair, it's all been hobby. I started when I was 17, over 30 years ago, mostly played with muscle cars with V-8's.

Jager

[Jager]

Time to remove IMS bearing using LN Engineering tool kit.