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PhilW

Holed Ally coolant pipes

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Hi

I have just found a hole in the small 90 degree pipe that has the fan thermostat in it.  I will see about getting a stainless one made as I have done with some of the others.  In the meantime I am sure I read on the forums somewhere a while ago about someone managing to repair some holes in these pipes.  Maybe a temporary solution for me rather than buying a new one that I dont really want.  I have searched but can find nothing.

Can anyone head me to it or have any experience of filling these small holes?

Thanks

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I’ve filled holes using Devcon alloy paste before, and it works well. You know the drill, clean up the pipe, roughen it up a bit, and smooth it on. Let it cure, then emery it off to a decent finish. It’ll do you until you decide to get the stainless one, but just beware that if there’s one hole, there could well be a few others hanging around.

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Think it was Wayne @top-plumber that used those low temp alloy welding rods  - would be the perfect job for those as it will be easy to get enough heat into the job with a small gas torch.  I used the same things to repair a bellhousing gearchange bracket with excellent results, although it required oxy acetylene to get enough heat into the job that rather defeated the purpose!   

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Take it to a sheet metal worker to get it Tig welded.

 

buddsy

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I've used JB weld on some of mine although they were not corroded all the way through. 

Steve.

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Another ? for Lumiweld, I've used it to remake broken fins on an air cooled cylinder head, strong enough to file into shape to form an invisible repair.

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@PhilW...did you get this sorted?

another option is called HTS 2000... good youtube vids showing its capabilities, and most on line reviews seem to confirm it. Got mine yesterday from a place in wiltshire, but still waiting for the  (apparently essential) stainless wire brush to prep it with. 

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I had holes in that pipe with the Otter switch. I threw it away and replaced with an adaptor for a screw-in thermostat and a silicone hose elbow.

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