Radiator: External Cleaning - BMW Luxury Touring Community
 
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post #1 of 6 Old Jun 11th, 2009, 3:08 pm Thread Starter
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Radiator: External Cleaning

While cleaning my LT, I noticed a lot of bugs and crap in the radiator fins.
Searching here, I found this quote:
"I have used a high pressure hose on my bikes. Just use it smartly, like do not place it where you damage parts. Handlebars, radio buttons, etc......... Great to clean out the radiator for bugs and fairing. Have used it on the windshield too, to get the bugs off."

Though the temp gauge shows the engine is running in the bottom third, I have yet to ride in temperatures over the low 70's F (we're still waiting for real summer here in southern Ontario!), so blockage/air flow restriction is not yet a problem.

However, any advice on how often to clean out the radiator fins?
And more importantly, any tricks or methods to effectively remove the debris, or things to avoid doing?
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post #2 of 6 Old Jun 11th, 2009, 3:14 pm
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Re: Radiator: External Cleaning

Howdy.. folks here have mentioned Hydrogen Peroxide 3% for BugGutz nuking.

I'm guessing one spray bottle full of that and sprayed in the fins. wait until the bubbling subsides, respray... then hose out... you should be able to see a flashlight shined behind it.

A standard garden hose set on "flush" rather than "stream" will help wash out the remnants...

Finally, a little compressed air shot through to take out any other bits...

The key is to NOT blast "sideways"... don't want to bend fins or flex where soldered to the tubes as that might spring a leak.
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post #3 of 6 Old Jun 11th, 2009, 3:30 pm
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Re: Radiator: External Cleaning

Quote:
Originally Posted by cfell
Howdy.. folks here have mentioned Hydrogen Peroxide 3% for BugGutz nuking.

I'm guessing one spray bottle full of that and sprayed in the fins. wait until the bubbling subsides, respray... then hose out... you should be able to see a flashlight shined behind it.

A standard garden hose set on "flush" rather than "stream" will help wash out the remnants...

Finally, a little compressed air shot through to take out any other bits...

The key is to NOT blast "sideways"... don't want to bend fins or flex where soldered to the tubes as that might spring a leak.
After doing that you might want to consider doing what 'motorhead' posted. I did & don't have any bugs in my radiators.
Follow the link & see attached pictures http://www.bmwlt.net/ubbthreads/show...ts&Main=285984

BIGHOPPER (Phil)
BGB 602
2016 R1200RT LC Purchase March
2003 R1150GSA Black Beast (purchased Nov 2011- 32,372klms)
2006 K1200LT Grey
(Purchased 2008, 7,350 mls) Trade in on 2016 RT at 80,600miles
1975 Norton John Player Replica (Sold When I got Married)
1973 Norton Interstate
1965 Atlas 750
1971 Triumph Trail Blazer(Rode from London to Sydney Aust, no maps for that)


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post #4 of 6 Old Jun 11th, 2009, 3:36 pm Thread Starter
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Re: Radiator: External Cleaning

Those rad screens look great, Bighopper.
Thanks for the excellent pics and the link.

How did you mount them/hold them in place?
David
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post #5 of 6 Old Jun 11th, 2009, 3:39 pm
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Re: Radiator: External Cleaning

Ya.. thanks Big Hopper! I've seen that before but did not recall where... very nice.
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post #6 of 6 Old Jun 11th, 2009, 10:39 pm
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Re: Radiator: External Cleaning

I used some small Velcro. Put them on the screen, at the corners then carefully put them against the rad's so the mating Velcro stuck to the lip's of the rad's.

BIGHOPPER (Phil)
BGB 602
2016 R1200RT LC Purchase March
2003 R1150GSA Black Beast (purchased Nov 2011- 32,372klms)
2006 K1200LT Grey
(Purchased 2008, 7,350 mls) Trade in on 2016 RT at 80,600miles
1975 Norton John Player Replica (Sold When I got Married)
1973 Norton Interstate
1965 Atlas 750
1971 Triumph Trail Blazer(Rode from London to Sydney Aust, no maps for that)


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