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post #1 of 15 Old 10-18-2006, 4:54 PM Thread Starter
 
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radiator overflow hose help!

In order to drain the overflow reservoir when I change antifreeze, I remove the overflow hose from where it attaches at the top of the radiator, near the cap. After removing it several times over the past few years to put in distilled water for the track, the metal weakened and it broke off today.
Can I attach the overflow hose to what's left of the metal nipple with a small hose clamp, or am I going to need a new radiator?
For future reference, is there a better way to drain the plastic overflow reservoir? Thanks.

Last edited by HondaGalToo; 02-04-2007 at 8:03 AM.
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post #2 of 15 Old 10-18-2006, 5:13 PM
 
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Re: radiator overflow hose help!

The overflow will have pressure when active and may blow the hose off since you do not have the raised barb

Must obey the sheep dog
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post #3 of 15 Old 10-18-2006, 5:16 PM Thread Starter
 
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Re: radiator overflow hose help!

Yeah, that's what I'm thinkin'.
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post #4 of 15 Old 10-18-2006, 5:22 PM
 
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Re: radiator overflow hose help!

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Originally Posted by sheepofblue View Post
The overflow will have pressure when active and may blow the hose off since you do not have the raised barb
The overflow is non-pressurized, this isn't a degas bottle situation (dang , sucks knowing the right terms, but I guess I should being in that business at the moment)

You should be able to use the existing/remaining hose barb if you can get the hose on and clamped. If you know someone who brazes you can probably get another barb put back on.

On my bikes, I usually unbolt the bottle and drain it directly. It is easier this way because I can't fit my hands in around the nozzle without pulling the cowl.

In the future, try not to wiggle the hose when pulling it off. I find gently prying on it with a screw driver breaks the seal and then it is easy to pull off the tube. Bending the aluminum will fatigue it ... as you now know.
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post #5 of 15 Old 10-18-2006, 5:27 PM
 
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Re: radiator overflow hose help!

HGT: try to use the existing hose nipple, if it looks iffy bring the radiator to a radiator shop and they can braze another one on for you. Sould cost very little to do that. I use a piece of clear hose and siphon out the remaining coolant out of the jug so there is no need to even mess with that hose at all.

It's amazing how stupid some people can be.
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post #6 of 15 Old 10-18-2006, 5:33 PM Thread Starter
 
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Re: radiator overflow hose help!

Thanks guys! From now on, it'll be siphoning for me! I usually do/did try to pry it off with a screwdriver, but it was really stuck on there. Guess my winter project will be pulling off the radiator.
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post #7 of 15 Old 10-18-2006, 5:34 PM
 
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Re: radiator overflow hose help!

Hi HondaGalToo,

Probably best to get a new connection braised onto the radiator, although if it were me I'd probably give the quick fix of a hose clamp a go first...

As for draining the catch bottle, I use a length of clear plastic hose and a 300mm syringe to suck the fluid out - and the same apperatus to squirt new fluid back in too !.

Cheers, Spanky
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post #8 of 15 Old 10-18-2006, 5:52 PM
 
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Re: radiator overflow hose help!

I disconnect the hose from the overflow tank and not from the rad

I wanna go fast!
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post #9 of 15 Old 10-18-2006, 6:05 PM
 
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Re: radiator overflow hose help!

Measure the stub diameter. If you can get a ferrel of that size and solder it on that should provide enough grab.

I beg to differ on the pressure. The overflow is above the cap seal and opens when the radiator pressure exceeds that caps rating. This results in a release of pressure until the radiator pressure drops below the cap rating thus causing the cap to reseal.

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post #10 of 15 Old 10-18-2006, 7:32 PM Thread Starter
 
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Re: radiator overflow hose help!

Ok, the radiator is off the bike, and I found a place in the Yellow Pages that says they do radiator and motorcycle tank repairs, so I know what I'm doing when I'm off on Friday.
Sheep, I've only soldered wires before, I don't trust myself to do a proper solder, but thanks!
In the future, I'll be siphoning out the fluid from the overflow tank.
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post #11 of 15 Old 10-19-2006, 12:32 AM
 
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Re: radiator overflow hose help!

Looks like there's enough (barely) nipple (insert off-color jokes here) left to clamp to. Long term solution? Join us here in sunny SoCal !
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post #12 of 15 Old 10-19-2006, 5:25 AM Thread Starter
 
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Re: radiator overflow hose help!

Quote:
Originally Posted by PartsGenius View Post
Looks like there's enough (barely) nipple (insert off-color jokes here) left to clamp to. Long term solution? Join us here in sunny SoCal !
Yeah! Then I could just leave the distilled water in year-round, and I've never have had that problem!! You're right, the amount of nipple (hehhehe, he said nipple) isn't enough to risk trying to clamp the hose to it, so it's going to get a new one brazed on.
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post #13 of 15 Old 10-27-2006, 4:45 PM Thread Starter
 
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Re: radiator overflow hose help!

Good news! The first radiator place I tried doesn't do aluminum radiators and didn't sound too hopeful about my finding someone who would, but they recommended a place he felt might be able to help. Called them, and they fix 'em!! In fact, they do mostly aluminum and build all kinds of radiators. The guy called me today, it's finished, I can pick it up on Monday. 40 bucks, excellent deal!!
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post #14 of 15 Old 10-27-2006, 5:38 PM
 
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Re: radiator overflow hose help!

Quote:
Originally Posted by jetbdude View Post
I disconnect the hose from the overflow tank and not from the rad


the hose is clamped on to a similar nipple on the overflow tank isn't it? why not just pull it off there.


glad you found someone to fix it HGT. seems kinda weird that the first place couldn't do it because its aluminum. most radiators now are made of aluminum.

if you can't convince them, confuse them.
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post #15 of 15 Old 10-27-2006, 5:40 PM Thread Starter
 
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Re: radiator overflow hose help!

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Originally Posted by CBR929RE View Post

the hose is clamped on to a similar nipple on the overflow tank isn't it? why not just pull it off there.


glad you found someone to fix it HGT. seems kinda weird that the first place couldn't do it because its aluminum. most radiators now are made of aluminum.
I thought about pulling it off there, but it's harder to reach, and it's plastic. Figured that would break easier...NOT! I'll be using a siphon, me thinks!
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