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Old 04-30-2012, 06:15 AM   #1
frichtie OP
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Those big exhaust manufold nuts...

Tomorrow, my G/S will finally hit the road. Bought it in November and been making it a "better bike" since.

This morning, i'm looking for a way to make the exhaust manifold nuts look better and for a longer time.

Tell me if I'm wrong: They're made of cast aluminum, aren't they? My idea was to clean them by lightly sandblasting them. But then, it won't keep them from attracting the dust and dirt....I know, it's a trail bike. Dust and dirt is part of its life.
How abour painting them with high temperature enamel? Polishing won't do much good, cause it will rapidly fade. Is there some chemical treatment that would do?

It doesn't keep me from sleeping. But you know, if someone has a solution... The worst that can happen: They will remain as they are: And it just doesn't affect the bike after all!
Eric

frichtie screwed with this post 04-30-2012 at 06:18 AM Reason: wrong spelling
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Old 04-30-2012, 06:31 AM   #2
Jon-Lars
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Those nuts are radiators for your cylinder head. Don't mess with them.
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Old 04-30-2012, 06:44 AM   #3
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Keep em clean. Use aluminum cleaner just like you would on the rest of the bike and definitely install with anti seize.

The easiest aluminum cleaner to source (at least here in the states) is Eagle 1 all wheel Mag Cleaner. Not the one for clear coated wheels (stronger). They stay bright for a long time once cleaned up.
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Old 04-30-2012, 07:44 AM   #4
frichtie OP
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I know they are "radiators" and, no, I'm not gonna mess with them.
Up to now, I tried a piece of red "scotchbrite" and I'll simply finish rubbing it with blue scotchbrite. I just don't want the G/S to look neglicted.

Those nuts are what they are and since the bike is not intented to become a "trailer-queen", no chrome will be added to it....
As I said, dirt end dust is part of those big nuts life!

Thanks,

Eric
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Old 04-30-2012, 08:03 AM   #5
boxerboy81
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When I do an oil filter change, I take the whole exhaust off. It's about an annual thing these days.

Doing that gives me the opportunity to also tidy up the exhaust, and I tend to soak the nuts in simple green for a few hours. A good rinse and a light brush at the end and they invariably come up well.

Anti seize on the threads when they go back on.
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Old 04-30-2012, 10:10 AM   #6
frichtie OP
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A friend just suggested he could treat it with some chemical (Alodine) that works well on aluminum parts.
The nuts would turn some yellowish and then be corrosion resistant....
I'm thinking, I'm thinking!

Eric
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Old 04-30-2012, 11:03 AM   #7
caponerd
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Quote:
Originally Posted by frichtie View Post
A friend just suggested he could treat it with some chemical (Alodine) that works well on aluminum parts.
The nuts would turn some yellowish and then be corrosion resistant....
I'm thinking, I'm thinking!

Eric
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Old 04-30-2012, 01:07 PM   #8
Padmei
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Powder coating them is the only way to make them look good.
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Old 04-30-2012, 03:42 PM   #9
disston
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Painting the exhaust nuts is messing with them. The paint will hinder the transfer of heat. Can cause over heating of exhaust valve, burnt valve, poor running engine.

Besides all the Airheads who see your machine will laugh at you.
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Old 04-30-2012, 05:47 PM   #10
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Alodine will probably be splotchy, also a strange shade of brownish gold.
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Old 05-01-2012, 03:46 AM   #11
frichtie OP
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I finally decided to stick to the old say: "Leave well alone".

A G/S doesn't need to look shiny. The best we can do, is keeping it reasonnably clean...

May first! The Bike will be registered today and hit the road. Hope the rain stops....Got a brand new Heidenau that I won't take in the rain for its first ride.

Eric
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Old 05-01-2012, 04:27 AM   #12
igormortis
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Quote:
Those nuts are radiators for your cylinder head. Don't mess with them.
Quote:
I know they are "radiators" and, no, I'm not gonna mess with them.
Quote:
...hinder the transfer of heat. Can cause over heating of exhaust valve, burnt valve, poor running engine.
Hmmm...

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Old 05-01-2012, 04:39 AM   #13
Jon-Lars
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Originally Posted by igormortis View Post
Hmmm...


Attermarket last-ditch repair.
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Old 05-01-2012, 05:09 AM   #14
disston
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Quote:
Originally Posted by Jon-Lars View Post
Attermarket last-ditch repair.
Yeah. My assertion that paint on the exhaust nuts will cause any discernible damage is really kinda stretching it. But I still don't like the idea of painting them.

The exhaust nut repair is a valid solution to a real world problem.
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Old 05-01-2012, 06:06 AM   #15
frichtie OP
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If I had to make some replacement parts, I'd make sure they are "winged" so they would still act as "radiators"...

Eric
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