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Rich H

Hello everyone,

In need of a bit of help please. As some of you know my car has had a terminal spigot bearing failure and it has eaten the end of the propshaft. Good news is I have been kindly offered a free torque tube to replace it but I still need to extract the old bearing.

Problem is the old bearing now consists of an outer race pressed into the housing so nothing to grip with pullers. Its a type 2 bearing so it has an M12 hole down the middle, any suggestions for pulling it out? I tried using sockets and a bolt to pull it out but it went very tight and I don't want to strip the thread.

I have a pickle fork ball joint splitter on order I was going to try that but its a bit 'agricultural' for my liking... Any suggestions?

Cheers
Rich
_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

Stampedetrail · Joined: 29 May 2005 Posts: 274 Location: Fairbanks, Alaska

If you're talking about the pilot bearing, yes you can screw in a proper sized bolt ( headbolt will work ) and just keep cranking on it until it moves. It can be kind of scary becuase a lot of force is needed, but it will move eventually.
_________________
1977.5 924 "Martini" head / New Old Stock rebuild
1985.5 944 Why? Because I can.

Rich H · Posted: Tue Jul 24, 2007 7:57 pm Post subject:

Cool,

ScottC has suggested to pack behind the bolt with grease too, get the laws of hydraulics working on my side!

I'll have a crack later

Cheers
Rich
_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

scottc · Posted: Tue Jul 24, 2007 8:15 pm Post subject:

924guy · Posted: Wed Jul 25, 2007 12:28 am Post subject:

i just did this the other day in my 931, the darn thing is a pita! my engine was also out, so i was able to drive it out from the access hole on the top of the housing, after removing the stop pin, using an old bolt, with a nut on the end (keeps the rod centered on the end of the shaft) which worked like a charm once i figured it out. i also hit it with copious amounts of pbblaster (penetrative oil, great stuff!) and beat it liberally with a hammer

the pilot bearing is below the hammer, you can see the discoloration on the ends, thats not only rust, but also the bi-metallic corrosion thing going on i think, and what makes it so hard to pull. but as you can see, its just a smooth pin really, minus the crud, no threads or anything.
heres a pic of the inside of the bell , this is the series two 931 version ofcourse, ymmv.

i did some searching when i ran into the same issue, assuming your engine is still in the car, which makes it much more difficult, i saw suggestions to use a slide hammer, which made allot of sense to me. no matter what though, id spray the crap out of it with a really good penetrating oil and tap the oil in (hit it while applying oil, so the oil penetrates.)
good luck, hope this helps..
_________________
Eric
78 924
82 931 SE "smokey"
99' VehiCross
Y2K Honda Insight
http://www.cardomain.com/id/924Guy
Performance by Pasha

Smoothie · Posted: Wed Jul 25, 2007 3:20 am Post subject:

Rich H · Posted: Wed Jul 25, 2007 4:27 am Post subject:

I'll try the packing with grease trick first. Should (Might) pop the bearing housing out nicely.

Problem is the bearing is nothing more than the outer race now so there is nothing to grip and it has been worn down so there is nothing to grip with a slide hammer

I'm going to see if I can find someone friendly with a lathe to wizz it out, should only take a few minutes to do once its out of the crank....
_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

924guy · Posted: Wed Jul 25, 2007 10:05 am Post subject:

brain fart on my part.... to many searches, to little absorbsion...

_________________
Eric
78 924
82 931 SE "smokey"
99' VehiCross
Y2K Honda Insight
http://www.cardomain.com/id/924Guy
Performance by Pasha

Rich H · Posted: Wed Jul 25, 2007 5:31 pm Post subject:

Grease trick didn't work and stripped the thread from the housing so winding in a bolt was never going to happen. I have started work on die grinding out the old race to see if I can get it out

_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec