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Let's go shooting.
Join Date: Feb 2003
Location: United Kingdom.
Posts: 1,200
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Front wheel bearings
The car I just bought (1983 manual 2.5) sounds like a Lancaster Bomber droning overhead at anything over 40 mph . Steering has the shakes. Front wheel bearings I reckon. Rears got done last week. It's been ten years since I had to do anything other than adjust the bearings play. The Haynes manual says nothing about the subject beyond adjustment. I have the original factory manual and it recommends heating up the hub before getting the bearing races in and out.
Is this strictly necessary? I had hoped I could just drift them out cold like the rears. I know they're conical so I figured the technique would be similar to drifting out the head race bearings of my Triumph. Anyone recommend the best way to tackle them in a reasonably equipped garage sans oven?
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1983 944 Lux (manual) 2.5 litre 8 valve na and no pas 1991 944 (automatic) 2.7 litre 16 valve na and pas "I have only five words for you: From my cold, dead hands." Last edited by Dark Skies; 12-21-2005 at 12:03 PM.. |
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12-21-2005, 11:43 AM
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Friend of Warren
Join Date: Oct 2000
Location: Lincoln, NE
Posts: 16,499
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The purests here will tell you that yes you have to heat the hubs up and freeze the bearings to removing and installing them. I am a neanderthal and just beat them in and out just as you describe.
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Kurt V No more Porsches, but a revolving number of motorcycles. |
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12-21-2005, 11:48 AM
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Join Date: Aug 2005
Location: Michigan
Posts: 3,381
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You should be able to remove the hub and retaining nut. Then pull the rotor right off. The outer bearings will come off with the rotor. Then the inner bearings should slide off the spindle. I haven't done it on a P-car but done it on tons of other cars. I would think it is the same method. Except I think a P-car has a screw that holds on the retaining nut. I've done it cold. Hopefully, others chime in that have actually done the job....
Good Luck!
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Bill 997.2 |
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12-21-2005, 11:51 AM
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Front Bearing.....
Dark Skies,
The front inner race (bearing) is press fitted during installation. You need some sort of pressure/force to slide it out from the spindle mounting. Once it starts to move/slide everything is easy. But I find it a lot easier to remove the bearing race by using some heat and a gear puller. A metal drift and BFH could do the job for other people. So pick your choice. TD |
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12-21-2005, 04:43 PM
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Registered
Join Date: Sep 2002
Location: Port Jefferson Station NY
Posts: 247
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For what its worth, just did this on two sets of hubs this past week. Have an oven used for powder coating. Just put the hubs in for about 20 minutes at 350 degrees or there abouts. Take em out with a long screwdriver so you dont have to touch them with your hands or wear heavy leather gloves. Took a drift and a hammer and lightly (well maybe not so lightly) tapped them out. Heating them makes removal so much easier on you and the hubs.
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12-21-2005, 04:58 PM
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Let's go shooting.
Join Date: Feb 2003
Location: United Kingdom.
Posts: 1,200
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Thanks for all the input everyone. It just occurred to me that if I could clean the hubs really thoroughly and wrap 'em in tin foil to contain any odours I might be able to slip them into my mum's cooker without her noticing.
 Ostensibly visiting to deliver Christmas presents, obviously. How heavy are a pair of hubs? Could I get away with sticking them in a rucksack so I could ride my bike over? Sadly my flat only has a microwave. On the plus side I have a small fridge I can stick the bearings in to chill. I could keep them cold for the trip (half an hour's ride).
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1983 944 Lux (manual) 2.5 litre 8 valve na and no pas 1991 944 (automatic) 2.7 litre 16 valve na and pas "I have only five words for you: From my cold, dead hands." Last edited by Dark Skies; 12-22-2005 at 06:26 AM.. |
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12-22-2005, 06:24 AM
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Friend of Warren
Join Date: Oct 2000
Location: Lincoln, NE
Posts: 16,499
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Quote:
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Kurt V No more Porsches, but a revolving number of motorcycles. |
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12-22-2005, 07:09 AM
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Registered
Join Date: Sep 2002
Location: Port Jefferson Station NY
Posts: 247
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You can try heating with a torch and the bearings should be frozen for maximum benefit. Either way, the races can be hammered out. Just be as careful as possible to minimize any scoring. Work slow and it will come out.
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12-22-2005, 07:47 PM
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