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Since: Sep 13, 2004
Posts: 3
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(Msg. 1) Posted: Mon Sep 06, 2004 6:56 pm
Post subject: Cleaning air cooled motor fins
Archived from groups: rec>motorcycles>tech (more info?)
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Anyone know of a good way to remove grime and oxidation from between
the cooling fins on an air cooled twin? I intend to paint the case
black and polish the top and side covers. I'm not sure how any
oxidation will affect the paint adherence on the cooling fins. I have
a dremel and i've tried to get in between them with it, but they don't
make any appropriate bits that seem to fit nicely in there.
Thanks in advance.
Lenny - 1980 Honda CM400E |
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External
Since: Nov 24, 2003
Posts: 88
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(Msg. 2) Posted: Tue Sep 07, 2004 2:38 am
Post subject: For SAKE!! Holiday plans etc [Login to view extended thread Info.]
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I've always used gunk or solvent and a toothbrush(my wife's) on my bike. It
gets it clean, but I don't know about prepping fo painting
"Lenny Cipriani" wrote in message
> Anyone know of a good way to remove grime and oxidation from between
> the cooling fins on an air cooled twin? I intend to paint the case
> black and polish the top and side covers. I'm not sure how any
> oxidation will affect the paint adherence on the cooling fins. I have
> a dremel and i've tried to get in between them with it, but they don't
> make any appropriate bits that seem to fit nicely in there.
>
> Thanks in advance.
>
> Lenny - 1980 Honda CM400E >> Stay informed about: Cleaning air cooled motor fins |
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External
Since: May 19, 2004
Posts: 61
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(Msg. 3) Posted: Tue Sep 07, 2004 2:41 am
Post subject: For SAKE!! Holiday plans etc [Login to view extended thread Info.]
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On 6 Sep 2004 17:56:30 -0700, lennyc DeleteThis @sctnet.com (Lenny Cipriani)
declaimed the following in rec.motorcycles.tech:
> Anyone know of a good way to remove grime and oxidation from between
> the cooling fins on an air cooled twin? I intend to paint the case
Sandblasting?
> black and polish the top and side covers. I'm not sure how any
> oxidation will affect the paint adherence on the cooling fins. I have
Unless you've got a high-temperature paint, I'd expect the paint
on the fins to slowly crack and peel off from the heat.
--
> ============================================================== <
> ============================================================== <
> Home Page: <http://www.dm.net/~wulfraed/> <
> Overflow Page: <http://wlfraed.home.netcom.com/> < >> Stay informed about: Cleaning air cooled motor fins |
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External
Since: Aug 10, 2004
Posts: 10
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(Msg. 4) Posted: Tue Sep 07, 2004 1:12 pm
Post subject: For SAKE!! Holiday plans etc [Login to view extended thread Info.]
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lennyc.TakeThisOut@sctnet.com (Lenny Cipriani) wrote in message ...
> Anyone know of a good way to remove grime and oxidation from between
> the cooling fins on an air cooled twin? I intend to paint the case
> black and polish the top and side covers. I'm not sure how any
> oxidation will affect the paint adherence on the cooling fins. I have
> a dremel and i've tried to get in between them with it, but they don't
> make any appropriate bits that seem to fit nicely in there.
>
> Thanks in advance.
>
> Lenny - 1980 Honda CM400E
my (limited) understanding is that you want to be careful about
changing the surface area of the cooling fins. supposedly doing
something to smooth/polish them will remove enough surface area (bumps
and irregularites) that cooling potential is negatively impacted...
-- john >> Stay informed about: Cleaning air cooled motor fins |
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External
Since: Oct 14, 2003
Posts: 8
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(Msg. 5) Posted: Sat Sep 11, 2004 11:20 am
Post subject: For SAKE!! Holiday plans etc [Login to view extended thread Info.]
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"jseely13" wrote in message
...
> > Anyone know of a good way to remove grime and oxidation from between
> > the cooling fins on an air cooled twin? I intend to paint the case
> > black and polish the top and side covers. I'm not sure how any
> > oxidation will affect the paint adherence on the cooling fins. I have
> > a dremel and i've tried to get in between them with it, but they don't
> > make any appropriate bits that seem to fit nicely in there.
> >
> > Thanks in advance.
> >
> > Lenny - 1980 Honda CM400E
>
> my (limited) understanding is that you want to be careful about
> changing the surface area of the cooling fins. supposedly doing
> something to smooth/polish them will remove enough surface area (bumps
> and irregularites) that cooling potential is negatively impacted...
>
> -- john
i seriously doubt that last claim. ever look at a processor heatsink?
-jason >> Stay informed about: Cleaning air cooled motor fins |
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External
Since: Aug 08, 2004
Posts: 10
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(Msg. 6) Posted: Sat Sep 11, 2004 5:52 pm
Post subject: For SAKE!! Holiday plans etc [Login to view extended thread Info.]
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>From: "Jason Templeton"
>> something to smooth/polish them will remove enough surface area (bumps
>> and irregularites) that cooling potential is negatively impacted...
>>
>> -- john
>
>i seriously doubt that last claim. ever look at a processor heatsink?
you are looking at a machined surface vs a cast surface...big difference...but
it is a known fact in the aircooled world(cars and bikes) that more surface
area means more cooling...one way to achieve that is to actually have any
smooth parts sandblasted...it actually is recommended by some very competant
engine builders...a light coating of flat black(non ceramic) paint also aids in
heat transfer...
-------------------
Chris Perdue
"Sometimes you're the windshield, sometimes you're the bug!"
Remove "PANTS" to e-mail >> Stay informed about: Cleaning air cooled motor fins |
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External
Since: Oct 13, 2003
Posts: 185
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(Msg. 7) Posted: Wed Sep 15, 2004 12:22 am
Post subject: For SAKE!! Holiday plans etc [Login to view extended thread Info.]
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"Chris Perdue" wrote in message
> >From: "Jason Templeton"
>
>>> something to smooth/polish them will remove enough surface area (bumps
>>> and irregularites) that cooling potential is negatively impacted...
>>>
>>> -- john
>>
>>i seriously doubt that last claim. ever look at a processor heatsink?
>
> you are looking at a machined surface vs a cast surface...big
> difference...but
> it is a known fact in the aircooled world(cars and bikes) that more
> surface
> area means more cooling...one way to achieve that is to actually have any
> smooth parts sandblasted...it actually is recommended by some very
> competant
> engine builders...a light coating of flat black(non ceramic) paint also
> aids in
> heat transfer...
It's not only the surface area, but most of all the turbulense the groves
create. This helps in exchanging hot air with cooler air faster.
/MBE >> Stay informed about: Cleaning air cooled motor fins |
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Since: Aug 08, 2004
Posts: 10
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(Msg. 8) Posted: Wed Sep 15, 2004 12:43 am
Post subject: For SAKE!! Holiday plans etc [Login to view extended thread Info.]
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>From: "Morten Becker-Eriksen"
>
>It's not only the surface area, but most of all the turbulense the groves
>create. This helps in exchanging hot air with cooler air faster.
yes sir...very important on an aircooled engine that is not force fed air...(as
in with a fan) with force fed systems pressure and flow come into play(like
with my old vw's...<G>)
-------------------
Chris Perdue
"Sometimes you're the windshield, sometimes you're the bug!"
Remove "PANTS" to e-mail >> Stay informed about: Cleaning air cooled motor fins |
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External
Since: May 17, 2004
Posts: 24
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(Msg. 9) Posted: Thu Sep 16, 2004 11:24 pm
Post subject: For SAKE!! Holiday plans etc [Login to view extended thread Info.]
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sand blast with glass beads.
--
-=-
"Don't drive faster than your angels can fly."<><
"Lenny Cipriani" wrote in message
> Anyone know of a good way to remove grime and oxidation from between
> the cooling fins on an air cooled twin? I intend to paint the case
> black and polish the top and side covers. I'm not sure how any
> oxidation will affect the paint adherence on the cooling fins. I have
> a dremel and i've tried to get in between them with it, but they don't
> make any appropriate bits that seem to fit nicely in there.
>
> Thanks in advance.
>
> Lenny - 1980 Honda CM400E >> Stay informed about: Cleaning air cooled motor fins |
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External
Since: Aug 04, 2003
Posts: 45
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(Msg. 10) Posted: Mon Sep 20, 2004 5:50 am
Post subject: For SAKE!! Holiday plans etc [Login to view extended thread Info.]
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Re: Cleaning air cooled motor fins
Group: rec.motorcycles.tech Date: Tue, Sep 7, 2004, 12:12pm (EDT-3)
From: jseely13.RemoveThis@charter.net (jseely13)
>my (limited) understanding is that you
>want to be careful about changing the
>surface area of the cooling fins.
>supposedly doing something to
>smooth/polish them will remove enough
>surface area (bumps and irregularites)
>that cooling potential is negatively
>impacted...<
Not to any degree that would be measurable. I've seen plenty of cases
where a few fins have been totally removed, with no real difference in
operating temp. >> Stay informed about: Cleaning air cooled motor fins |
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