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

Post Reply
 
LinkBack Thread Tools Display Modes
Old 07-11-2013, 02:29 AM   #1
Registered User
 
tomc88's Avatar
 
Join Date: Jun 2013
Location: UK
Posts: 132
Had interesting chat with a Porsche Specialist about IMS failures

...wish I could have recorded the phone conversation - I forget most of it now, but I'll give you the gist.

These guys are a specialist at fitting LN bearing upgrade.

They are seeing about 5% of these porsche engines failing, but!
there are about 5 common reasons for engine failure and IMSB is just one of then.

They have only seen one IMSB fail in the last year, yet many others with cracked cylinder heads, or broken timing belts etc.

What I got from this conversation is that, yes, the IMSB can fail, gut it's just as likely something else will fail too.

My car is worth about £5K - the upgrade will cost around £1K. So it's all a gamble of course.
My oil is clean so I'll take the risk

This of course is always a heated subject, but the phone call did open my eyes to other engine problems that seem to get forgotten.

has IMSB failures overshadowed other reasons for engine failures?

__________________
2001 Boxster S
tomc88 is offline   Reply With Quote
Old 07-11-2013, 03:04 AM   #2
Registered User
 
Join Date: Mar 2007
Location: Ohio
Posts: 1,997
Just search "mode of failure" and you'll see lots of discussions on this. In fact, search that expression limited to posts by Jake Raby...he's found lots of them through the years. I believe he's up to 23 or 24 last time I looked.
Frodo is offline   Reply With Quote
Old 07-11-2013, 03:09 AM   #3
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,261
Quote:
Originally Posted by tomc88 View Post
...wish I could have recorded the phone conversation - I forget most of it now, but I'll give you the gist.

These guys are a specialist at fitting LN bearing upgrade.

They are seeing about 5% of these porsche engines failing, but!
there are about 5 common reasons for engine failure and IMSB is just one of then.

They have only seen one IMSB fail in the last year, yet many others with cracked cylinder heads, or broken timing belts etc.

What I got from this conversation is that, yes, the IMSB can fail, gut it's just as likely something else will fail too.

My car is worth about £5K - the upgrade will cost around £1K. So it's all a gamble of course.
My oil is clean so I'll take the risk

This of course is always a heated subject, but the phone call did open my eyes to other engine problems that seem to get forgotten.

has IMSB failures overshadowed other reasons for engine failures?
These engines do not have timing belts............
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 07-11-2013, 07:12 PM   #4
Registered User
 
Jager's Avatar
 
Join Date: Jul 2010
Location: California
Posts: 1,859
Garage
Quote:
Originally Posted by tomc88 View Post
...wish I could have recorded the phone conversation - I forget most of it now, but I'll give you the gist.

These guys are a specialist at fitting LN bearing upgrade.

They are seeing about 5% of these porsche engines failing, but!
there are about 5 common reasons for engine failure and IMSB is just one of then.

They have only seen one IMSB fail in the last year, yet many others with cracked cylinder heads, or broken timing belts etc.

What I got from this conversation is that, yes, the IMSB can fail, gut it's just as likely something else will fail too.

My car is worth about £5K - the upgrade will cost around £1K. So it's all a gamble of course.
My oil is clean so I'll take the risk

This of course is always a heated subject, but the phone call did open my eyes to other engine problems that seem to get forgotten.

has IMSB failures overshadowed other reasons for engine failures?
The Boxsters in the UK have timing belts? You should change those every 100,000 miles.
__________________
Jäger

300K Mile Club
Jager is offline   Reply With Quote
Old 07-11-2013, 08:32 PM   #5
Registered User
 
Perfectlap's Avatar
 
Join Date: Nov 2004
Location: New Jersey
Posts: 8,709
Man..tough crowd.
__________________
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 07-12-2013, 12:01 AM   #6
Registered User
 
Join Date: Jun 2013
Location: Austin, TX
Posts: 109
Garage
Quote:
Originally Posted by Perfectlap View Post
Man..tough crowd.
That's what I was thinking...lol
reiver is offline   Reply With Quote
Old 07-12-2013, 03:58 AM   #7
Registered User
 
Join Date: Mar 2007
Location: Ohio
Posts: 1,997
Quote:
Originally Posted by Perfectlap View Post
Man..tough crowd.
No kiddin'.

We need to, as a group, get together, go to some comedy club somewhere. We obviously have some wonderfully accomplished hecklers in the group.
Frodo is offline   Reply With Quote
Old 07-12-2013, 04:27 AM   #8
Registered User
 
Join Date: Jul 2009
Location: Arlington Heights, IL
Posts: 1,561
Quote:
Originally Posted by Frodo View Post
We need to, as a group, get together, go to some comedy club somewhere. We obviously have some wonderfully accomplished hecklers in the group.
A Rabbi, a timing belt, and Sara Jessica Parker all walk into a bar. Bartender says, "hey, why such a long face?"!!!

Thank you very much. I'm here all week. Tip your waitresses well.
Flavor 987S is offline   Reply With Quote
Old 07-12-2013, 05:26 AM   #9
Registered User
 
Join Date: Mar 2007
Location: Ohio
Posts: 1,997
Quote:
Originally Posted by Flavor 987S View Post
A Rabbi, a timing belt, and Sara Jessica Parker all walk into a bar. Bartender says, "hey, why such a long face?"!!!
Baa-Dum Tssssssh!

Frodo is offline   Reply With Quote
Post 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 02:24 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page