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making a rotor holder tool
Posted: Sat Nov 29, 2008 10:31 pm
by ckahleer
I have a 11/4" combination wrench I am planning to heat and bend to
use as a rotor holder tool.
If others on the list have already done this, my questions are:
MustI make 2 90 deg bends or will 2 45 deg bends work?
After heating and bending with a butane tourch, should I let the
wrench air cool or dip it in water. I kind of remember something from
shop class about water cooling makes the metal harder.
Craig Kahler
making a rotor holder tool
Posted: Sun Nov 30, 2008 6:26 am
by nakedwaterskier
Making a rotor holder tool
1 and 1/4" I think is what u mean.
It would be 45 degrees and 180-45=135 degrees; don't you think?
I reuse my copper oil drain washer by heating it up(But, I think you
need oxy/acetylene to get the required temp. for bending a tool) and
letting
it cool slowly to keep it soft...so, I gather you would be correct
in dipping it in water.
I have a 11/4" combination wrench I am planning to heat and bend to
use as a rotor holder tool.
If others on the list have already done this, my questions are:
MustI make 2 90 deg bends or will 2 45 deg bends work?
After heating and bending with a butane tourch, should I let the
wrench air cool or dip it in water. I kind of remember something from
shop class about water cooling makes the metal harder.
Craig Kahler
making a rotor holder tool
Posted: Sun Nov 30, 2008 7:19 am
by dooden
Mention where you are, might be somebody close-by with the holder and
the puller bolt that might just let you use what they got.
Might try just buying a crows foot for your ratchet, never tried but
seems like it would fit.
Dooden
A15 Green Ape
--- In
DSN_KLR650@yahoogroups.com, "ckahleer" wrote:
>
> I have a 11/4" combination wrench I am planning to heat and bend to
> use as a rotor holder tool.
> If others on the list have already done this, my questions are:
> MustI make 2 90 deg bends or will 2 45 deg bends work?
> After heating and bending with a butane tourch, should I let the
> wrench air cool or dip it in water. I kind of remember something from
> shop class about water cooling makes the metal harder.
>
> Craig Kahler
>
making a rotor holder tool
Posted: Sun Nov 30, 2008 8:20 am
by Jeff Saline
On Sun, 30 Nov 2008 04:31:36 -0000 "ckahleer"
writes:
> I have a 11/4" combination wrench I am planning to heat and bend to
> use as a rotor holder tool.
> If others on the list have already done this, my questions are:
> MustI make 2 90 deg bends or will 2 45 deg bends work?
> After heating and bending with a butane tourch, should I let the
> wrench air cool or dip it in water. I kind of remember something
> from
> shop class about water cooling makes the metal harder.
>
> Craig Kahler
<><><><><><><><><><><>
<><><><><><><><><><><>
List,
I sent the below note to Craig since it had attachments. But thought the
info may be helpful to others so here it is below.
Best,
Jeff
<><><><><><><>
Craig,
This is off list since I'm attaching three .jpgs but I will send the same
info to the list without the .jpgs.
I think I got my wrench dimensions from EagleMike about 4 1/2 years ago.
One .jpg shows my notes from then and they are metric dimensions.
The pictures of my wrench are taken to show inches but I guess you could
use the metric scale if you want.
There isn't a lot of room inside the rotor so I think the 90 degree bends
are best. Two 45 degree bends would work in theory but I think you don't
have room here. I think the most critical bend is the first one in that
it isn't too far away from the rotor. In the picture mine shows about 1
3/8". Then make sure you've bent it back with at least 7/8" of height.
The suggestion was 20.51mm. I think my wrench shows just over an inch.
You do want the holder to clear the edge of the rotor without touching it
or being on an angle. It's also helpful if the wrench on each end of the
bends is parallel. That will help with transferring force and also for
resting it on the footpeg while in use. If the ends aren't parallel, in
use the wrench may want to twist on the rotor. The rotor is delicate and
you can break one pretty easily if you aren't careful.
I think you'll need more heat than is available from a butane torch.
There is a lot of metal to act as a heat sink and I'm not sure you'll get
the heat you'll need without adding compressed air or oxygen. You should
plan on getting the metal red hot before bending. Then let it cool for a
minute or two before making the second bend. If you are using an
Oxy-Fuel torch I think you'll do best with a soft, neutral flame.
Let the bends cool in still air. No need to quench and depending on how
you might do that it could make the wrench brittle.
Hope this is helpful.
Best,
Jeff Saline
ABC # 4412 South Dakota Airmarshal
Airheads Beemer Club
www.airheads.org
The Beautiful Black Hills of South Dakota
75 R90/6, 03 KLR650, 79 R100RT
____________________________________________________________
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signing off
Posted: Sun Nov 30, 2008 8:20 am
by Charley
Thanks for all of you advise and help. I recently bought a 650GS.
Hope to see you on the road.
TKS
making a rotor holder tool
Posted: Sun Nov 30, 2008 10:19 am
by eddie self
I have never bent a wrench but when heating my tempered drain clearing cables I cool them with oil .
----- Original Message -----
From: ckahleer
To:
DSN_KLR650@yahoogroups.com
Sent: Saturday, November 29, 2008 10:31 PM
Subject: [DSN_KLR650] Making a rotor holder tool
I have a 11/4" combination wrench I am planning to heat and bend to
use as a rotor holder tool.
If others on the list have already done this, my questions are:
MustI make 2 90 deg bends or will 2 45 deg bends work?
After heating and bending with a butane tourch, should I let the
wrench air cool or dip it in water. I kind of remember something from
shop class about water cooling makes the metal harder.
Craig Kahler
[Non-text portions of this message have been removed]
making a rotor holder tool
Posted: Sun Nov 30, 2008 10:41 am
by Eric Foster
I'd quench with oil, the hardness will go deeper.
http://www.efunda.com/processes/heat_treat/hardening/direct.cfm
E
--
"If ye love wealth better than liberty, the tranquility of servitude
better than the animating contest of freedom, go home from us in peace.
We ask not your counsels or your arms. Crouch down and lick the hands which feed you.
May your chains set lightly upon you,and may posterity forget that you were our countrymen."
Samuel Adams, 1776
making a rotor holder tool
Posted: Sun Nov 30, 2008 11:20 am
by Michael Martin
Craig,
I saw the response from Jeff Saline and agree that a hotter torch will likely be necessary. I bent my wrench using MAPP gas. Didn't bother to quench it. The wrench was beefy enough so that wasn't necessary. I think I sprayed some water on the wrench using a spray bottle because I was impatient and wanted to verify that the wrench would fit into the rotor. I ended up having to grind a little on the wrench shank because the bend wasn't close enough to the open end wrench head. The first bend was 90 degrees and the second one was maybe 100 degrees to get the end of the wrench back where it would rest on the footpeg.
Mike Martin,
Louisville, KY
________________________________
From: ckahleer
I have a 11/4" combination wrench I am planning to heat and bend to
use as a rotor holder tool.
If others on the list have already done this, my questions are:
MustI make 2 90 deg bends or will 2 45 deg bends work?
After heating and bending with a butane tourch, should I let the
wrench air cool or dip it in water. I kind of remember something from
shop class about water cooling makes the metal harder.
Craig Kahler
[Non-text portions of this message have been removed]