07-14-2016, 02:12 AM
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#21
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
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Quote:
Originally Posted by FauxDiablo
The nut, only judging from the photo (lol) appears to be about 14mm.
Not sold on a certain update bearing yet.
Actually, I am leaning towards the Pelican "replace-again-when-you-do-the-next clutch" bearing if I find a brittle seal issue...and if the seals are still intact/supple, I may just wrap it back up...or I may even go with the Nachi bearing that has a higher heat resistance in the seals. Not sure yet.
It's too bad that an oblong/oval-roller-shaped bearing is not available...it would be at home in that position and give a little bit of yield against a torsional "wobble", unlike the standard roller bearing, and be able to take more of a load unlike a standard ball bearing. Sigh.
There is another issue that is never brought up .... "German engineering" does not necessarily add credence to "German assembled"...they have cars there that were built after noon on a Friday as well.  ... wasn't even assembled in Germany. It was assembled in a country that is more in-line with Russia than Germany.... alot more Fridays in Finland if you catch my drift. |
Reason I asked about the center bolt nut was it look large in your photo, and I was concerned it was a 22MM.
Roller bearings are available, but have no installed base and have not shown engine builders of note any advantage over hybrid (read ceramic) ball bearings. If you really want to do this right, put in an IMS Solution; oil fed and no moving parts, the only known permanent retrofit.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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07-14-2016, 02:19 AM
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#22
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
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Quote:
Originally Posted by FauxDiablo
No reason whatsoever to do the RMS. It's never leaked (good case halves and sealing!), and I have learned to never mess with stuff like that if it isn't broken.
The IMS is a different story though. I will be opening it up soon, and if it's good, I may not replace it at this time....Still pondering it.
I do believe that the IMSB may possibly be the single most feared part of these motors, but the odds that it is good are in my favor, and I have seen WAY too much chest-beating as to who makes the best update, and a lot of those same people are throwing a lot of horror stories this way in what seems like scare-to-buy tactics at times.
I will know more after I crack-open that IMSB flange.
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We charge customers $25 to do the RMS with the new PTFE seals that never leak, if we do them while doing an IMS retrofit. All of these cars came with Viton seals, which Porsche updated to PTFE around 7 years ago because so many of the Viton seals suddenly started leaking. I have never heard of seen a PTFE seal (which was installed correctly) that leaked, so it is a major improvement for little money.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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07-14-2016, 07:33 AM
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#23
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Registered User
Join Date: Nov 2009
Location: Winnipeg MB
Posts: 2,486
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Quote:
Originally Posted by jdraupp
You're obviously not married. If I spent 3 grand without my wife's approval, she'd be my ex wife.
Happy wife=Happy life.
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Wife #1 was 23 years and there was no discord due to financial matters. Will be marrying wife#2 soon and I don't expect problems in that area this time either. I guess I just don't marry control freaks.
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'99 black 986
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07-14-2016, 09:07 AM
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#24
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Registered User
Join Date: Jul 2016
Location: Minnesnowta
Posts: 90
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Quote:
Originally Posted by Smallblock454
Hi FauxDiablo,
you're wrong this time. The engines and the chassis components (axles, transmission) of all 986 where made and completed in Stuttgart Zuffenhausen and than where shipped to Valmet in Finland.
Regards, Markus |
I know that...I said they were ASSEMBLED in Finland.
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07-14-2016, 09:09 AM
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#25
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Registered User
Join Date: Jul 2016
Location: Minnesnowta
Posts: 90
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Quote:
Originally Posted by JFP in PA
Reason I asked about the center bolt nut was it look large in your photo, and I was concerned it was a 22MM.
Roller bearings are available, but have no installed base and have not shown engine builders of note any advantage over hybrid (read ceramic) ball bearings. If you really want to do this right, put in an IMS Solution; oil fed and no moving parts, the only known permanent retrofit.
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According to my Carfax, and a quick call to the dealer, it was found that the IMS seal had been replaced at less than 5K miles.
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07-14-2016, 09:55 AM
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#26
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
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That has nothing to do with the center bolt nut; if it was a 22MM, you would have a replacement engine and a non serviceable IMS.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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