Alternator Question
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Joe Kucinski
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Joined: Feb 2015
Posts: 131
Likes: 22
That's a strange bearing you have got.
I thought it should be something like https://www.porscheshop.co.uk/altern...1989-1998.html
Part #25 964-106-051 "wheel hub" on PET
Or may be i am missing something...probably.
How is the fan attached in your case?
I thought it should be something like https://www.porscheshop.co.uk/altern...1989-1998.html
Part #25 964-106-051 "wheel hub" on PET
Or may be i am missing something...probably.
How is the fan attached in your case?
Last edited by 993c4ie; Jan 24, 2021 at 02:27 AM.
Rennlist Member
Joined: Sep 2007
Posts: 4,514
Likes: 830
From: Massachusetts
Originally Posted by 993c4ie
That's a strange bearing you have got.
I thought it should be something like https://www.porscheshop.co.uk/altern...1989-1998.html
Part #25 964-106-051 "wheel hub" on PET
Or may be i am missing something...probably.
How is the fan attached in your case?
I thought it should be something like https://www.porscheshop.co.uk/altern...1989-1998.html
Part #25 964-106-051 "wheel hub" on PET
Or may be i am missing something...probably.
How is the fan attached in your case?
Rennlist Member
Joined: Sep 2007
Posts: 4,514
Likes: 830
From: Massachusetts
If you haven't seen this thread, give it a read as it may help prevent any issues since some of the reman parts vary.
https://rennlist.com/forums/993-foru...ound-wire.html
https://rennlist.com/forums/993-foru...ound-wire.html
Drifting
Joined: Dec 2019
Posts: 2,612
Likes: 1,696
From: New Jersey
Surprised the bushing was hung up on there.
Just yesterday I spent 7hrs+ getting my fan bearing off the shaft. It was on there so good, that the fan came off the bearing hub fairly easily with a puller but left the bearing and bearing hub on the shaft. I went at it with two different pullers, heat, PB blaster and lots of swearing for hours. Finally got it off. The spacer bushing slid right off no problem.
Just yesterday I spent 7hrs+ getting my fan bearing off the shaft. It was on there so good, that the fan came off the bearing hub fairly easily with a puller but left the bearing and bearing hub on the shaft. I went at it with two different pullers, heat, PB blaster and lots of swearing for hours. Finally got it off. The spacer bushing slid right off no problem.
Drifting
Joined: May 2006
Posts: 3,074
Likes: 205
From: Paris
Surprised the bushing was hung up on there.
Just yesterday I spent 7hrs+ getting my fan bearing off the shaft. It was on there so good, that the fan came off the bearing hub fairly easily with a puller but left the bearing and bearing hub on the shaft. I went at it with two different pullers, heat, PB blaster and lots of swearing for hours. Finally got it off. The spacer bushing slid right off no problem.
Just yesterday I spent 7hrs+ getting my fan bearing off the shaft. It was on there so good, that the fan came off the bearing hub fairly easily with a puller but left the bearing and bearing hub on the shaft. I went at it with two different pullers, heat, PB blaster and lots of swearing for hours. Finally got it off. The spacer bushing slid right off no problem.
introduce longer bolts in your fan bearing, etc
https://rennlist.com/forums/993-foru...n-car-diy.html
Last edited by geolab; Jan 24, 2021 at 01:06 PM.
Drifting
Joined: Dec 2019
Posts: 2,612
Likes: 1,696
From: New Jersey
That just may have worked... had there not already been a broken fan pulley bolt in the bearing hub. 
I used a puller on the fan and alternator shaft and the fan came clean off the bearing hub (which is press fit in there), leaving the bearing hub and bearing on the shaft. So my only choice was to then try a puller on the bearing hub. Probably could have used your method once the fan was off (I was able to easily remove the broken bolt) but no where around here had M6 bolts with enough thread to thread all the way down and push against the alternator itself.
Fun times.
I used a puller on the fan and alternator shaft and the fan came clean off the bearing hub (which is press fit in there), leaving the bearing hub and bearing on the shaft. So my only choice was to then try a puller on the bearing hub. Probably could have used your method once the fan was off (I was able to easily remove the broken bolt) but no where around here had M6 bolts with enough thread to thread all the way down and push against the alternator itself.
Fun times.
RL Community Team
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Rennlist Member
Joined: Jul 2004
Posts: 10,573
Likes: 2,037
From: Dallas, TX
Make sure the new one has the correct insulation block so the high amp wire doesn't ground out.
https://993servicerepair.blogspot.com/2020/03/warning-avoiding-altercation-when.html?m=1
https://993servicerepair.blogspot.com/2020/03/warning-avoiding-altercation-when.html?m=1
Last edited by pp000830; Jan 24, 2021 at 11:17 PM.