BMW K bikes (Bricks)

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1Back to top Go down   front brake lever Empty front brake lever Sat Apr 07, 2012 4:07 pm

joem

joem
Silver member
Silver member
hi all, i have a littel acident when my k75 fell over, not good!. anyway iv bent the front break lever, no other damage. its a non-ABS 1990 K75S. I was thinking to try to bend it back but think it may snap. is it a strate forward swap over job or is it a tricky job, i can just imagen springs poping out all over the place. well thanks for any advice given.

regards joe.

    

2Back to top Go down   front brake lever Empty Re: front brake lever Sat Apr 07, 2012 6:12 pm

Crazy Frog

Crazy Frog
admin
admin
Have you looked at THIS POST?
So much resources that it becomes difficult to find Very Happy
Otherwise, this is a straight swap.

CF


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front brake lever Frog15front brake lever Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

3Back to top Go down   front brake lever Empty Re: front brake lever Sun Apr 08, 2012 1:07 pm

joem

joem
Silver member
Silver member
lots of lite tappling with a hmmer and all good, came off easy, simple to go back on, no surprises with anything falling out or tricky springs.

thanks, joe

    

4Back to top Go down   front brake lever Empty Re: front brake lever Fri Jun 01, 2012 9:15 pm

Moto Smith

Moto Smith
Silver member
Silver member
@joem wrote:hi all, i have a littel acident when my k75 fell over, not good!. anyway iv bent the front break lever, no other damage. its a non-ABS 1990 K75S. I was thinking to try to bend it back but think it may snap. is it a strate forward swap over job or is it a tricky job, i can just imagen springs poping out all over the place. well thanks for any advice given.

regards joe.
you can straighten the aluminum with a bit if heat.
A plumbers propane type of thing will work.
Heat the part until, when you stroke it with the wooden handle of your hammer (or dry twig), the wood leaves a charred mark. No mark and it's too cool, mark burns off and its too hot (wait a while).

If you have Oxy Acetylene, brush the piece with the acet only flame leaving a carbon deposit. Heat until the carbon starts to burn off. Wait a minute and straighten the piece.
It's all going to get hot as Aluminum is very good at conducting the heat.

You can cool (quench) the piece if you wish before you straighten it. I usually work it hot and let the piece air cool when finished.

Cheers, M


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87 K100RS - Pichler fairing (PK2)
http://www.markaspery.com
    

5Back to top Go down   front brake lever Empty Re: front brake lever Fri Jun 01, 2012 9:31 pm

krambo

krambo
Life time member
Life time member
I have been reliably informed of this tip for straightening aluminium levers etc. Haven't had a chance to test it yet but the guy that passed on the tip to me makes a few quid using this method:

Rub ordinary household soap bar over bent part of the aluminium, then heat with a blow torch until soap begins to blacken. Apparently, at this point the aluminium has reached just the right temperature (annealment point)to be carefully straightened by whatever method you choose. I will report back with results when I have time to try this out on a lady riding companion's Triumph Street Triple brake lever. Please use this method at your own risk as I will not be held responsible for the consequences Wink


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1984 BMW K100RT, 1993 BMW K1100LTIC,1982 Kawasaki KZ1100 Spectre
"Aut viam inveniam aut faciam." front brake lever Uk-bmw12
http://www.its-personal.net
    

6Back to top Go down   front brake lever Empty Re: front brake lever Mon Jun 04, 2012 1:21 pm

sidecar paul

sidecar paul
Life time member
Life time member
Yes Krambo, we learnt the soap trick at school when beating aluminium sheet into a soup ladle, it does work.

Paul.


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'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015) 
....No CARS never ever!
    

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