IMS Fix

[mikefocke]

You are thinking of doing something to limit your risk.

Why would you not then go with the most used product, the one with instructions which have been improved multiple times (in contrast to some others where some of us have had to bludgeon the author to correct even the most egregious error), and one with a tool kit that has again been improved given experience and which can be sold after use?

Good luck in your choice.

[Tweedboru]

Thanks for the Amazon source, could not find one at the time.
AS i mentioned the old bearing was in great shape and the shaft had about 1/2 cup of engine oil in it even with both seals in place.The car runs great .
Regarding the tool I thought it may be of interest for those who like to tinker DIY

[Gelbster]

Tweedboru;525943]
Thanks for the Amazon source, could not find one at the time.
You are welcome.
" the (IMS)shaft had about 1/2 cup of engine oil in it even with both seals in place."
But that was when you still had a bearing with both seals. Now you have no seals so it will be at least 1/3 full of oil.
"The car runs great ." Glad to read that. But it does not prove that an IMSB with no seals is a good choice. No IMSB deep-groove kits supply bearings with no seals. Most have one seal.
Yours will be an interesting experiment. One difficulty is purging the old oil from the IMS when you drain the engine oil. Park it draining with the front high for a few days?
Hope it works out well for you

[WorkInProgressK]

Fastest way to purge is to run the car on a slight uphill or at the track at a higher RPM. Centrifugal forces would force the oil out faster then letting it sit.

Why not do both .

Tweedboru, I love your solution. I would have kept it sealed with grease. In the end, all of the "lubrification in the bearing" is mostly used as corrosion protection and cooling. Splash will work fine. Bearings deteriorate when they pit so when people stop driving their car.

Maybe Porsche intended people to let their car sit a long time? All their anti-friction bearings are sealed one even those in the gear box where lubrication is plenty.

[Gelbster]

Originally Posted by WorkInProgressK

I would have kept it sealed with grease. In the end, all of the "lubrification in the bearing" is mostly used as corrosion protection and cooling. Splash will work fine. Bearings deteriorate when they pit so when people stop driving their car. .

Really ?
How will splash help a bearing that is sealed ?The cumulative wisdom of the IMSB world is the outer seal was the cause of much of he problem. Ditto the mainshaft and pinion bearing in the G86 that you allude to.
I ask because of the Hippocratic oath we should take when giving advice. "First,do no harm". If you have enough evidence to refute the cummulative wisdom of the experts, we're all ears & eyeballs.

[WorkInProgressK]

Originally Posted by Gelbster

Really ?
How will splash help a bearing that is sealed ?The cumulative wisdom of the IMSB world is the outer seal was the cause of much of he problem. Ditto the mainshaft and pinion bearing in the G86 that you allude to.
I ask because of the Hippocratic oath we should take when giving advice. "First,do no harm". If you have enough evidence to refute the cummulative wisdom of the experts, we're all ears & eyeballs.

I was stating"either or" no seal with splash or seal with grease. These bearings are called "anti-friction bearing" and yes the cumulative wisdom is just fear mongering and people are making money on this. The real issue is people not using their cars causing their bearing to pit from corrosion. Without pitting the bearing would not wear in the cars useful life.
Out of the machinery's Handbook or bible to most Machinist and Mechanical Engineers.


Picture of pitting, from google search.


Here is some reference, maybe I should charge for doing some research on the subject? Btw I have owned my "porsche" for 1 year now so new to this fear, but my hobbies and daily job allow me to analyse it a little further.

[356Guy]

Well its either one or the other....grease lube or splash oil lube. Sealed grease lube bearings with some oil contamination is not a normal lubrication method. The problem is compounded when you are using contaminated oil due to infrequent oil changes, short driving trips, etc.

[JFP in PA]

Originally Posted by WorkInProgressK

I was stating"either or" no seal with splash or seal with grease. These bearings are called "anti-friction bearing" and yes the cumulative wisdom is just fear mongering and people are making money on this. The real issue is people not using their cars causing their bearing to pit from corrosion. Without pitting the bearing would not wear in the cars useful life.
Out of the machinery's Handbook or bible to most Machinist and Mechanical Engineers.


Picture of pitting, from google search.


Here is some reference, maybe I should charge for doing some research on the subject? Btw I have owned my "porsche" for 1 year now so new to this fear, but my hobbies and daily job allow me to analyse it a little further.

Which does nothing to explain why cars that are daily drivers, and driven hard, were some of the first to show the problem.