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Alternator Fan Hub Bearing

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Old 06-24-2018, 08:46 AM
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decgraham
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Default Alternator Fan Hub Bearing

Hi All,

I know some of you guys follow the 911UK forum but just wanted to let you know that a few of us just purchased Alternator Fan Hub Bearings from a company in the UK at a very good price. If you don't want to replace the whole unit, which is around £120.00 plus VAT plus shipping this is the way to go.

http://911uk.com/viewtopic.php?t=128...er=asc&start=0

Just thought I'd share this with you.
No affiliation to the company.

ATB
Old 06-24-2018, 11:37 AM
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pp000830
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I have owned a 930 era 911 and now a 993. The earlier car had well over 100k miles on it when I sold it and my 993 just passed 100K miles. I have never had to replace an alternator or a fan bearing. I have also replaced belts on both vehicles. I was wondering if overtightening belts could be a primary root cause for eventual bearing failure. Early on I didn't have a tensioning gauge and so I just left the shims in from the previous belt install. later on, I used a tensioning gauge and found my method was keeping the belts within tensioning specification.

Other's thoughts?
Old 06-26-2018, 01:57 AM
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stace
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Not to highjack this thread but I’ve had to recently replace my alternator and hub bearing. The bearing was making a pretty loud tapping noise once warmed up. The first bearing didn’t last a week before it made the same racket. My indie just replaced it again under their warranty and used a different brand / supplier. First supplier admitted they had recent problems. This second bearing makes a loud racket the very next day after a couple of hours drive to Portland. So I will be calling my indie again. While in Portland I stopped at Sunset (now Porsche of Beaverton). They had an OEM bearing so I’m hoping that will not fail. Posting so that anyone else putting in a hub bearing is pretty selective. Obviously there are a bunch of defective ones on the market.
Old 06-26-2018, 09:53 AM
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pp000830
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Originally Posted by stace
The bearing was making a pretty loud tapping noise once warmed up.
Was this a fan blade hitting the fan housing making the tapping noise?
Old 06-26-2018, 10:16 AM
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stace
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Originally Posted by pp000830
Was this a fan blade hitting the fan housing making the tapping noise?
no it’s the bearing itself. Fan blade is fine.
Old 06-26-2018, 10:55 AM
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Jlbarnett
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Interested, I sent Roger an email. Is the bearing that is sourced a dual row ball bearing 17ID x 32OD x 14mm?
Old 06-26-2018, 12:00 PM
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For those interested, Roger is very responsive to email. Shipping to the US is not a problem and the cost is 27 GBP

Here is a link to the part advertised on his website

http://wmtbearings.co.uk/porsche-pul...gs-shrewsbury/
Old 10-21-2021, 10:06 AM
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ok great lead thanks - spoke to him
Old 10-21-2021, 02:00 PM
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EckFe1
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I had a bearing fail too.
I decided on a Clewett conversion.
Should've done it 10 years ago.
Don't waste any more money on this old design.



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