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Old 10-13-2010, 01:45 AM   #1 (permalink)
Mof
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Default Samurai Freezing Carb Fix

Thought I would share a little something I did to fix my freezing carb

I had a piece of copper pipe lying around so put it in my airbox
I piped in to the heater hoses at the back of the engine
I put one tee after the heat control in the hose to the heater core so if you turn the heater control to cold, the water stops flowing through the copper pipe
Authough you could just fit a ball tap.
I put the other tee in the return line from the heater core

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fittings in heater hoses
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(air cleaner removed to see it better)

Outside air temp was 9 deg celsius
Air temp in top of snorkel was 9 deg
temp in intake pipe between air box and carb before turning water on was 14 deg
temp in pipe after turning water on was 28 deg!
temp in pipe holding 2000-2500 revs was 24 deg!

Havent had a frozen carb since!

Last edited by Mof; 10-13-2010 at 01:53 AM.
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Old 10-23-2010, 06:08 PM   #2 (permalink)
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Don't you have a hot air feed from the exhaust?
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Old 10-24-2010, 02:21 AM   #3 (permalink)
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generally the hot air intake valve from the exhaust manifold should be enough. If you aren't getting adequate heat from that you might try insulating the duct. It has a thermal valve on it that is vacuum operated and it flips the hot air intake off when it's not needed. There is also an electric heater element that is an option on some models. I think it's after the carb at the throttle plate so it probably wouldn't keep your carb from freezing up. I think it's primarily for cold starts.
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Old 10-24-2010, 02:41 AM   #4 (permalink)
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I removed the manifold intake summer/winter pipe and switch thing when I fitted the snorkel.
That switch leaked like a sieve and it would just suck in water
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Old 10-24-2010, 01:47 PM   #5 (permalink)
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ah yess... for a snorkled vehicle that gets submerged... I can now see why you went that way. The hot air valve wasn't designed to be totally air tight, just a diverter more or less.

I was wondering why you went to all that trouble. Now I get it! very clever!
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