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Old 09-05-2017, 12:46 PM   #1
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old 01s had oem bearing when sold at 90k
old 99 996 had oem bearing till 172k when hail totalled
current 03 has oem bearing at 53k currently

i think it's a hit or miss...i've been lucky i guess
paying 2-3k for an aftermarket bearing is a waste of money for me. I'd rather put that money into mods.
If it goes i'll deal with it then. Everyones priority is different.....
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Old 09-05-2017, 05:25 PM   #2
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Just changed mine out just over 100,000 km the original bearing was fine


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Old 09-06-2017, 06:44 AM   #3
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Just changed mine out just over 100,000 km the original bearing was fine


Mine looked pretty much the same when I changed it out in the spring of 2016. In fact if I am reading it correctly it is the exact same bearing out of my 03 S
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Old 09-06-2017, 01:13 PM   #4
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I am currently in the market for a '97-'01 986 and won't even consider a car if the IMS has not been replaced. Definitely less cars to choose from, but this way I don't have the expense or the worry if a PO has it already taken care of.

Call me crazy, but not willing to take the 1%-8% chance on an original IMS car. I have spoken with 3 sellers already with new IMS that had them replaced along with their motors when the original bearings went out.
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Old 09-06-2017, 03:19 PM   #5
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I am currently in the market for a '97-'01 986 and won't even consider a car if the IMS has not been replaced. Definitely less cars to choose from, but this way I don't have the expense or the worry if a PO has it already taken care of.

Call me crazy, but not willing to take the 1%-8% chance on an original IMS car. I have spoken with 3 sellers already with new IMS that had them replaced along with their motors when the original bearings went out.
I understand your position, but what if the PO had the IMS bearing replaced without the proper pre-check to ensure it qualified for the aftermarket IMS bearing? There are stories out there about IMS bearing being replaced then the engine blowing due to another issue. IMHO, you would be better off finding the right Boxster, getting a PPI done then, if the IMS bearing hasn't been replaced, have it done.
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Old 09-06-2017, 05:16 PM   #6
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I understand your position, but what if the PO had the IMS bearing replaced without the proper pre-check to ensure it qualified for the aftermarket IMS bearing? There are stories out there about IMS bearing being replaced then the engine blowing due to another issue. IMHO, you would be better off finding the right Boxster, getting a PPI done then, if the IMS bearing hasn't been replaced, have it done.
Agreed and that's the plan. I am presently evaluating a 986 owned by my Indie shop (have another P-Car as well) that just had the clutch, flywheel and an LN Engineering bearing installed. They are currently in the process of going through the entire car for me right now so I will know where it stands mechanically prior to making an offer to purchase.
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Old 09-07-2017, 12:08 AM   #7
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I understand your position, but what if the PO had the IMS bearing replaced without the proper pre-check to ensure it qualified for the aftermarket IMS bearing? There are stories out there about IMS bearing being replaced then the engine blowing due to another issue. IMHO, you would be better off finding the right Boxster, getting a PPI done then, if the IMS bearing hasn't been replaced, have it done.
Well as it happens one of the guys has just had something let go in his engine which had everything replaced. Just because an IMS has been replaced doesn't mean the rest will be bulletproof.

The paranoia is real with you guys.
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Old 09-07-2017, 02:05 AM   #8
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The paranoia is real with you guys.
(edit: wt... talking like that about my friends online. Censured)

Live the moments!!! its just mechanics


Engine reliability - top 10 brands according to Warranty Direct

1. Honda (failure rate: 1 in 344)
2. Toyota (failure rate: 1 in 171)
3. Mercedes-Benz (failure rate: 1 in 119)
4. Volvo (failure rate: 1 in 111)
5. Jaguar (failure rate: 1 in 103)
6. Lexus (failure rate: 1 in 101)
7. Fiat (failure rate: 1 in 85)
8. Ford (failure rate: 1 in 80)
9. Nissan (failure rate: 1 in 76)
10. Land Rover (failure rate: 1 in 72)

Engine reliability - bottom 10 brands according to Warranty Direct

1. MG Rover (failure rate: 1 in 13)
2. Audi (failure rate: 1 in 27)
3. Mini (failure rate: 1 in 40)
4. Saab (failure rate: 1 in 40)
5. Vauxhall (failure rate: 1 in 41)
6. Peugeot (failure rate: 1 in 44)
7. BMW (failure rate: 1 in 45)
8. Renault (failure rate: 1 in 46)
9. Volkswagen (failure rate: 1 in 52)
10. Mitsubishi (failure rate: 1 in 59)
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Last edited by Nine8Six; 09-07-2017 at 09:37 PM.
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Old 09-06-2017, 01:56 PM   #9
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Just changed mine out just over 100,000 km the original bearing was fine


What the bearing looks like with the grease seal on is meaningless. Mine looked great after 147,000 miles, too. But when I pulled the grease seals off, there was just a slight amount of grease left, more a residue than actual grease on the balls.

I don't know how much longer mine would have lasted, but I'm guessing it wouldn't have been long. I feel relieved that I had the bearing replaced.
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