Expresso front wheel rebuild

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Mal S7
Posts: 661
Joined: Thu Aug 05, 2010 5:26 am

Expresso front wheel rebuild

Post by Mal S7 »

I just chopped through all the spokes on my front wheel with a grinder.
Bearing caps screwed off easily (phew),
bearings are showing some slight wear,
as I have never cleaned or greased them in 70 thousand kms they have done OK.
Then I cooked the hub on my Trangia camping stove,
its perfect, sits in there like a cooking pot!

The outer races fell out with a tap.

Now to get the hub to the sandblasters.
I'll try and get a before and after pic.

Later
Mal
She'llbe
Posts: 724
Joined: Tue Aug 03, 2010 6:48 pm

Re: Expresso front wheel rebuild

Post by She'llbe »

use a soda blaster!!! my BMW guru showed me the error of ways to use many other means of blasting!!!
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Mal S7
Posts: 661
Joined: Thu Aug 05, 2010 5:26 am

Re: Expresso front wheel rebuild

Post by Mal S7 »

Hi She'llbe, How ya doing?

tried Soda-blast'n the rear hub,
it won't shift nothing but paint!

I've read the stories about grit impregnating alloy and such and reckon its fooey.
Dismantled and blasted my own heads and barrels and engine covers and fork lowers about ten years back.
No different than riding down a dusty road.
Patient and very thorough cleaning stages is all ya need.

Mind you I'd prefer wet blasting but no one does that around here

cheers
Mal
ME 109
Posts: 7306
Joined: Tue Aug 03, 2010 3:00 am
Location: Albury, Australia

Re: Expresso front wheel rebuild

Post by ME 109 »

Hey Mal, if ya don't get the spokes back in, yer cood always concrete the hub in place.
Those rims make fer mighty fine boxing.

Speaking of wheels, I straightened out a front wheel that I recently got from Germany.
I used a computer aided system I found in the shed.
My old computer tower was just the right height to rest a screwdriver on to use as a dial indicator. :mrgreen:
Lord of the Bings
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Airbear
Posts: 2886
Joined: Tue Aug 03, 2010 10:02 am
Location: Oz, lower right hand side, in a bit, just over the lumpy part.

Re: Expresso front wheel rebuild

Post by Airbear »

ME 109 wrote: Speaking of wheels, I straightened out a front wheel that I recently got from Germany.
I used a computer aided system I found in the shed.
My old computer tower was just the right height to rest a screwdriver on to use as a dial indicator. :mrgreen:
Crikey Jeff, that's gettin' a bit bloody technical. Whad'll people think?

Gidday Mal. Glad to see you taking an interest again. Speaking of proper procedure and wheel bearings, I've just epoxied the outer race back into Brunhilde's rear hub. It was good for about 8000kms last time I did it. I suppose I'll eventually get around to getting it sleeved, but it sure is nice to be back on the road again. My personal race-track to school is a ball-tearer.
Charlie
and Brunhilde - 1974 R90/6
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Graduate, Wallace and Gromit School of Engineering and Design (Pending)
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dougie
Posts: 2540
Joined: Wed Aug 04, 2010 6:19 pm
Location: Burlington Ontario, Canada

Re: Expresso front wheel rebuild

Post by dougie »

ME 109 wrote:I used a computer aided system I found in the shed.
My old computer tower was just the right height to rest a screwdriver on to use as a dial indicator. :mrgreen:
Shit that is hi-tech.
bow-down-before-you.gif

:idea: Last time I did that I screwed a piece of threaded rod into the rock wall. (threads were never the same again :o )
I've spent most of my money on women, motorcycles, and beer.
The rest of it I just wasted.
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jagarra
Posts: 896
Joined: Mon Dec 26, 2011 12:42 pm
Location: Reno, Nevada

Re: Expresso front wheel rebuild

Post by jagarra »

Here is a soda blaster on the cheap for those little jobs, can be used on carburators and possibly other small parts.

http://www.aircooledtech.com/tools-on-t ... a_blaster/
1974 R90/6 built 9/73
1987 BMW K75S
1994 BMW R1100RS
1964 T100SR Triumph
1986 Honda XL600R
KenHawk
Posts: 124
Joined: Sun Aug 08, 2010 8:32 pm

Re: Expresso front wheel rebuild

Post by KenHawk »

jagarra wrote:Here is a soda blaster on the cheap for those little jobs, can be used on carburators and possibly other small parts.

http://www.aircooledtech.com/tools-on-t ... a_blaster/
I used that method a couple of times with surprisingly good results. I helps to be able to buy the 5# boxes of soda though.
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If the revolution was televised, Americans would watch "Dancing with the Stars".
Mal S7
Posts: 661
Joined: Thu Aug 05, 2010 5:26 am

Re: Expresso front wheel rebuild

Post by Mal S7 »

Airbear wrote: I've just epoxied the outer race back into Brunhilde's rear hub. It was good for about 8000kms last time I did it. I suppose I'll eventually get around to getting it sleeved, but it sure is nice to be back on the road again.
I got by for years with the same trick Charlie, used a loctite product specially for bearings. Mine had so much clearance I wrapped a feeler gauge around it to take up the slack!

Thnaks for the article on the soda-blaster jagarra. Neat and cheap. I like it!
Deleted User 72

Re: Expresso front wheel rebuild

Post by Deleted User 72 »

KenHawk wrote:
jagarra wrote:Here is a soda blaster on the cheap for those little jobs, can be used on carburators and possibly other small parts.

http://www.aircooledtech.com/tools-on-t ... a_blaster/
I used that method a couple of times with surprisingly good results. I helps to be able to buy the 5# boxes of soda though.
Harbor Freight has it by the 40# bag.
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