Iis IMS retro needed on a reman engine ?
04-02-2012, 10:35 PM
#1
Drifting
Thread Starter
Iis IMS retro needed on a reman engine ?
Checked my engine serial number after reading a thread or two here, and found mine has the "AT" code which defines it as remanuaftured (M96/01AT66X65297). This seems to be good news
, but does it mean that LN IMS retrofits or upgrades are not required ? Or is it possible that the factory remans did not "fix" this potential issue completely ? Last oil change did not show any shiney bits of horror. Car as 78K miles. I have no idea when the reman was installed, but will research it. Not horribly concerned about it but curious. Thanks !
, but does it mean that LN IMS retrofits or upgrades are not required ? Or is it possible that the factory remans did not "fix" this potential issue completely ? Last oil change did not show any shiney bits of horror. Car as 78K miles. I have no idea when the reman was installed, but will research it. Not horribly concerned about it but curious. Thanks !
04-02-2012, 10:54 PM
#2
Three Wheelin'
The long and short.
Yes the larger bearing can and have failed but requires complete engine teardown to replace.
No you shouldnt obsess over it. Keep the rpms up and the oil fresh and that bearing has a good chance of lasting the "lifetime" (practically speaking) of the car.
Yes the larger bearing can and have failed but requires complete engine teardown to replace.
No you shouldnt obsess over it. Keep the rpms up and the oil fresh and that bearing has a good chance of lasting the "lifetime" (practically speaking) of the car.
04-03-2012, 09:20 PM
#3
Track Day
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Depends.
Is your reman engine 2006 or later? If so then it has the larger bearing and you can't retrofit it (at least not without great difficulty). It doesn't really need to be replaced as long as you keep up with oil changes and don't lug it down.
Older than 2006 then you should do the retrofit because it has original bearing style
Is your reman engine 2006 or later? If so then it has the larger bearing and you can't retrofit it (at least not without great difficulty). It doesn't really need to be replaced as long as you keep up with oil changes and don't lug it down.
Older than 2006 then you should do the retrofit because it has original bearing style
04-03-2012, 09:47 PM
#5
Trending Topics
04-04-2012, 05:50 PM
#8
Instructor
Warnings
04-05-2012, 12:13 PM
#13
Drifting
I was lucky and through hard work and Dealer help had Porsche NA goodwill a motor replacement in my '99 C2 in '06. It was explained to me that it was still a 3.4 but with a larger IMS bearing and the latest factory shaft upgrades as well as the latest "everything" component and accessory wise. A terrific deal, as far as I was concerned.
04-05-2012, 08:34 PM
#15
Drifting
Thread Starter
I was lucky and through hard work and Dealer help had Porsche NA goodwill a motor replacement in my '99 C2 in '06. It was explained to me that it was still a 3.4 but with a larger IMS bearing and the latest factory shaft upgrades as well as the latest "everything" component and accessory wise. A terrific deal, as far as I was concerned.
