Reman engines
Thread Starter
Intermediate
Joined: May 2021
Posts: 43
Likes: 24
From: Gaithersburg, MD
Reman engines
I’m the new owner of a 3/98 production 996 and could use some advice from those of you who are pros. The car now has 62K miles and the engine was documented as replaced in July, 2009 at 44K miles by a Porsche dealer with a factory reman engine serial number M96/01AT66X67403 and part number 996-100-996-BX. I have spent several hours digging through posts here about reman engines and trying to determine what IMSB is in this engine and try and put together a maintenance plan going forward. And it seems to be the consensus that it “probably” has the larger diameter 6305 un-serviceable but low failure rate bearing… but without dropping the transmission there is no way to be certain. Since I am new to these engines does this seem to be a valid conclusion to those of you who are in the know? I would prefer to drive it until it needs a clutch and then check and be certain what it has in it but of course I would also prefer the engine not grenade on me. If I do choose to go this route in the interim then the drill would be frequent oil changes, a magnetic drain plug, checking the filter for debris and always getting a used oil analysis to keep tabs on any possible impending failures? And if at clutch time it proves to have the big 6305 bearing then just pull the seal and wait for rebuild time and then do the LM Solution? Thanks for any enlightenment!
Rennlist Member
Joined: Oct 2010
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From: Alabama USA
Yes, your plan sounds exactly correct.
The "large IMSB" was starting to be used by Porsche in 2006 in Reman engines. ALL 2005 engines would have been depleted before sending out 2006 engines and Porsche doesn't "stock" that many engines, so you can bet a 2009 engine will have the latest.
The "large IMSB" was starting to be used by Porsche in 2006 in Reman engines. ALL 2005 engines would have been depleted before sending out 2006 engines and Porsche doesn't "stock" that many engines, so you can bet a 2009 engine will have the latest.
Rennlist Member
Joined: Aug 2006
Posts: 9,213
Likes: 1,907
From: Chicago, IL
I agree with your plan. I really wouldn’t worry too much about the engine. It would be pretty bad luck to have a 2nd engine fail.
I would also keep an eye on fuel trims and check cam deviation every year or two.
If you decide to end up replacing items on the engine (such as spark plugs or coil packs), or you have to take the sump plate off for any reason, that would be a good time to have the bores scoped.
Otherwise, enjoy in good health!
I would also keep an eye on fuel trims and check cam deviation every year or two.
If you decide to end up replacing items on the engine (such as spark plugs or coil packs), or you have to take the sump plate off for any reason, that would be a good time to have the bores scoped.
Otherwise, enjoy in good health!
Three Wheelin'
Joined: Mar 2021
Posts: 1,920
Likes: 681
From: Katy Texas
Congratulations, good plan.
I’m the new owner of a 3/98 production 996 and could use some advice from those of you who are pros. The car now has 62K miles and the engine was documented as replaced in July, 2009 at 44K miles by a Porsche dealer with a factory reman engine serial number M96/01AT66X67403 and part number 996-100-996-BX. I have spent several hours digging through posts here about reman engines and trying to determine what IMSB is in this engine and try and put together a maintenance plan going forward. And it seems to be the consensus that it “probably” has the larger diameter 6305 un-serviceable but low failure rate bearing… but without dropping the transmission there is no way to be certain. Since I am new to these engines does this seem to be a valid conclusion to those of you who are in the know? I would prefer to drive it until it needs a clutch and then check and be certain what it has in it but of course I would also prefer the engine not grenade on me. If I do choose to go this route in the interim then the drill would be frequent oil changes, a magnetic drain plug, checking the filter for debris and always getting a used oil analysis to keep tabs on any possible impending failures? And if at clutch time it proves to have the big 6305 bearing then just pull the seal and wait for rebuild time and then do the LM Solution? Thanks for any enlightenment!
Thread Starter
Intermediate
Joined: May 2021
Posts: 43
Likes: 24
From: Gaithersburg, MD
Thanks for helping ease my concerns about the new toy. I did schedule a PPI (first P is Post however since a Pre wasn't feasable for this car) next week with a local well regarded Porsche independent shop just to get a good baseline idea of it's mechanical condition. The car is basically 100% stock and original and it came with a huge stack of receipts since it was new showing proper and regular service and care so hopefully we will have a long and happy relationship.
But I do need to do something about the lack of proper sound after turning the key. I have three Ducati's and I am used to actually hearing the engine make glorious noises when it's running.
But I do need to do something about the lack of proper sound after turning the key. I have three Ducati's and I am used to actually hearing the engine make glorious noises when it's running.
Three Wheelin'
Joined: Mar 2021
Posts: 1,920
Likes: 681
From: Katy Texas
Lots of options.
Thanks for helping ease my concerns about the new toy. I did schedule a PPI (first P is Post however since a Pre wasn't feasable for this car) next week with a local well regarded Porsche independent shop just to get a good baseline idea of it's mechanical condition. The car is basically 100% stock and original and it came with a huge stack of receipts since it was new showing proper and regular service and care so hopefully we will have a long and happy relationship.
But I do need to do something about the lack of proper sound after turning the key. I have three Ducati's and I am used to actually hearing the engine make glorious noises when it's running.
But I do need to do something about the lack of proper sound after turning the key. I have three Ducati's and I am used to actually hearing the engine make glorious noises when it's running.
Banned
Joined: Dec 2019
Posts: 3,928
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From: Massachusetts
Thanks for helping ease my concerns about the new toy. I did schedule a PPI (first P is Post however since a Pre wasn't feasable for this car) next week with a local well regarded Porsche independent shop just to get a good baseline idea of it's mechanical condition. The car is basically 100% stock and original and it came with a huge stack of receipts since it was new showing proper and regular service and care so hopefully we will have a long and happy relationship.
But I do need to do something about the lack of proper sound after turning the key. I have three Ducati's and I am used to actually hearing the engine make glorious noises when it's running.
But I do need to do something about the lack of proper sound after turning the key. I have three Ducati's and I am used to actually hearing the engine make glorious noises when it's running.
My opinion - muffler deletes are THE ****, cheap, save a ton of weight and loud. Check my YT - lots of videos of muffler deletes both on the road and the track.
If there was one thing that rises above the rest as far as compliments for my car, it was the sound with my $180 muffler deletes
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Instructor
Joined: Apr 2020
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Thanks for helping ease my concerns about the new toy. I did schedule a PPI (first P is Post however since a Pre wasn't feasable for this car) next week with a local well regarded Porsche independent shop just to get a good baseline idea of it's mechanical condition. The car is basically 100% stock and original and it came with a huge stack of receipts since it was new showing proper and regular service and care so hopefully we will have a long and happy relationship.
But I do need to do something about the lack of proper sound after turning the key. I have three Ducati's and I am used to actually hearing the engine make glorious noises when it's running.
But I do need to do something about the lack of proper sound after turning the key. I have three Ducati's and I am used to actually hearing the engine make glorious noises when it's running.
Last edited by Houtx996; Jun 11, 2021 at 11:15 AM.
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Three Wheelin'
Joined: Mar 2021
Posts: 1,920
Likes: 681
From: Katy Texas
Would love to see your car
Do the muffler delete, unless you are an old. It's not obnoxiously loud as some people here say, the average mustang with exhausts is louder. My primary concern was the drone I had heard others here complaining about, that has not been my experience, What I found is you will get it if you can't keep consistent throttle control, so if you have a shakey foot you might want to reconsider. The last time I got pulled over the officers parting words were "nice exhaust".
$150.
Three Wheelin'
Joined: Mar 2021
Posts: 1,920
Likes: 681
From: Katy Texas
Joe satriany
From my drag, track days always listen to surfin with an alien 👽 by Joe Satriani, starting to do the same for my triple digit trips. Still want to hear the stereo, that’s why I don’t wanted as loud.
Advanced
Joined: May 2021
Posts: 77
Likes: 38
Same here. I've got the MaxFlos with the Agency Power headers that were on clearance. Sounds great. I do have the IP plenum, 82mm TB, BMC filter as well. All of those add to the sound.
Thread Starter
Intermediate
Joined: May 2021
Posts: 43
Likes: 24
From: Gaithersburg, MD
Two things for certain there: If the P clutch starts sounding like the Duc clutch you've got a real problem and changing a Duc clutch is gonna be a whole lot easier that the P clutch. If you're not changing the basket (or pulling off fairings) a Duc clutch takes about half hour and most of that is drinking the "that job's done" beer afterwards.
Not so sure about a muffler delete. I don't want to be "that guy" to my neighbors since I already am pushing my luck with the Ducs. Unless the original mufflers look toasted maybe I'll start with the Gundo if I can find a competent local to do it and see if that satiates my aural desires. I'll ask the Indy guy at the PPI next week and see if he knows anyone since I'm new to this area and I don't have any local contact resources.
Not so sure about a muffler delete. I don't want to be "that guy" to my neighbors since I already am pushing my luck with the Ducs. Unless the original mufflers look toasted maybe I'll start with the Gundo if I can find a competent local to do it and see if that satiates my aural desires. I'll ask the Indy guy at the PPI next week and see if he knows anyone since I'm new to this area and I don't have any local contact resources.
Rennlist Member
Joined: Aug 2006
Posts: 9,213
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From: Chicago, IL
Originally Posted by Springbank;[url=tel:17485375
17485375[/url]]Thanks for helping ease my concerns about the new toy. I did schedule a PPI (first P is Post however since a Pre wasn't feasable for this car) next week with a local well regarded Porsche independent shop just to get a good baseline idea of it's mechanical condition. The car is basically 100% stock and original and it came with a huge stack of receipts since it was new showing proper and regular service and care so hopefully we will have a long and happy relationship.
But I do need to do something about the lack of proper sound after turning the key. I have three Ducati's and I am used to actually hearing the engine make glorious noises when it's running.
But I do need to do something about the lack of proper sound after turning the key. I have three Ducati's and I am used to actually hearing the engine make glorious noises when it's running.
Muffler delete annoys the crap out of so many people, depending on where you live, and it can get you ticketed or thrown out of certain track events. To each their own.
Fister or Gundo aren’t so loud, but you can still hear it. If you are after maximum decibels, muffler delete and 200 cell cats. If you want really good sound, not just loud, a good muffler will be better.
You can also perform the ‘orange cap mod’ (intake resonator delete with silicon intake tube). I used a 2” pipe plug for mine. This mod increases the intake sound inside the car, mostly at WOT conditions.
If you do both (intake and exhaust), you might only notice and hear the exhaust.