Radiator. Help - VTXOA
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post #1 of 6 (permalink) Old 04-14-2019, 02:14 PM Thread Starter
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Radiator. Help

Hi there. I had a small leak coming from the front of the radiator hose where it meets the radiator down under the engine. I got a new hose and clamps and when removed notice that the bottom of the radiator connector to the hose is flat and not rounded. See picture. Thoughts? Do I put. New hose and problem goes away? Do I need a new radiator? Thanks.
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post #2 of 6 (permalink) Old 04-14-2019, 02:23 PM
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my advice
remove the radiator..
go to a radiator repair shop..
have them re-round the port...
pressure check it..
reinstall it..

or just purchase a new one..

round hose.. round clamp.. not-round port.. guess what ?



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post #3 of 6 (permalink) Old 04-14-2019, 02:46 PM
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Yep, it will leak again. Round up the pipe or buy a new rad
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post #4 of 6 (permalink) Old 04-14-2019, 03:33 PM
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If you try to round it yourself, do not pry on it. It will result in the point at which it attaches to the rad crack and fail. This point, in particular, can be rather fragile. If you go to your local plumbing store and get a PEX expander of the right size that should get it back to round without stressing the actual joint.


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post #5 of 6 (permalink) Old 04-14-2019, 03:55 PM
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My guess is the saddle (tightening screw) formed it to that shape. Too large a clamp possibly.
Smaller clamp for smaller hose sizes.

Many have leaked from the reduction of clamping pressure after many years.

Usually a small amount of tightening will stop the leak.

I do not see any crushed area, should be good..

A few 1800 have developed leaks from stress fractures on the mounting flange to the radiator.
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Last edited by Hans&Feet; 04-14-2019 at 05:05 PM. Reason: added more hose clamp info
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post #6 of 6 (permalink) Old 04-14-2019, 05:31 PM Thread Starter
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Thank you all. Yes the clamp was larger. Probably someone before me had it placed there instead. I got new ones and they are smaller. I was able to round it up a bit by using a socket, got it inside and wiggled it a bit. Seems much better now. I will try by placing the new hose with the new clamps. Thank you for the quick response everyone.
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