Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 02-07-2013, 09:43 AM   #1
Registered User
 
Join Date: Nov 2009
Location: Pittsburgh, PA
Posts: 93
IMS condition update

I just had my IMS bearing replaced and I thought I would post the condition. MY car is a 99 and it had the dual row bearing. I had 92000 miles on the car and the last 2000 miles were track only miles as I took the car off the road and trailered it to the track. Presently I am preparing it for the Spec class and we were installing the comp clutch and al. flywheel. The bearing was in excellant shape. My mechanic cleaned it up and we tried to find some irregular rotating problems but there were no "bad spots" that we could find. My oil change interval was apx. 3/4 thousand. I installed the Pelican bearing and did not go for the ceramic bearing. That's it, I thought it might be of some interest. BH, Pgh, PA

wmtee is offline   Reply With Quote
Old 02-07-2013, 09:49 AM   #2
Registered User
 
Perfectlap's Avatar
 
Join Date: Nov 2004
Location: New Jersey
Posts: 8,708
Just makes you wonder why they got rid of dual row bearings... Mine came out at 69K miles (hard miles) and it was spotless.
__________________
GT3 Recaro Seats - Boxster Red
GT3 Aero / Carrera 18" 5 spoke / Potenza RE-11
Fabspeed Headers & Noise Maker
BORN: March 2000 - FINLAND
IMS#1 REPLACED: April 2010 - NEW JERSEY -- LNE DUAL ROW
Perfectlap is offline   Reply With Quote
Old 02-07-2013, 01:07 PM   #3
Registered User
 
Join Date: Aug 2012
Location: Indianapolis, In.
Posts: 160
Thanks for posting that info...good to know.
__________________
1998 986 with ladder racks.
paintboy is offline   Reply With Quote
Old 02-07-2013, 01:33 PM   #4
Registered User
 
Join Date: May 2011
Location: Miami florida
Posts: 1,591
The dual row bearings seem to hold up better than the single row and from what's I've read, the also give some warning before they fail, as opposed to the single row that tends to give no warning before they grenade.

LN has not had a single failure of the ceramic dual row bearings and only a handful of the single row. The "ultimate solution" from LN only applies to single row bearings, the dual row is so robust they don't make a "solution" for the double row.

My car was built in 7/99 so I'm hoping I have the double row. At 131k miles, I'm just going to wait until I need a clutch to replace the IMSB, but I do check the oil filter halfway through the oil change interval to check for metal and do UOAs to hopefully get some advance warning.

__________________
Current car

2000 Boxster 2.7l red/black

Previous cars

1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
san rensho is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 02:50 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page