How would you fix/braze/solder this pipe

[rswift]

Hi Chaps,

This is a coolant pipe from a Suzuki Cappuccino, as you can see it has sprung a leak. The rest of the pipe is ok, and it the other side of this outlet is ok.

I am not sure what it is made out of, but it's quite thin !

Now, parts for the Cappo are a little scarce (expensive), so I would quite like to see if I can somehow repair it. I'm sure in my youth I once fixed an A35 Radiator, but memory is hazy whether I solder it (with plumbers solder) or brazed it ...... either way it was years ago, and I have long since lost the tools or knowledge !

So, any ideas of a decent & watertight fix ?

All ideas gratefully received.

Thank you

[jimbob82]

clean it up with some sand paper so you can get good adhesion, fill the pipe with sand then solder it. that's how I would do it if I was pushed and didnt have tools. The other option is get someone who's GOOD with a mig and cut it off and re-attach it.

good luck

[rswift]

Thank you,

I'm quite handy with a MIG, but not sure how good !

I hadn't twigged filling with sand though, excellent advice.

[Petrolhead_Rich]

take it to a radiator repair specialist, they will understand the expansion etc of cooling systems and probably be able to repair it, failing that, goto the local scrapper and see if there is anything from a different car you could make fit with a longer/shorter flexible??

I'd be inclined to replace completely if possible!

[duncancallum]

If you put copper behind the hole you can mig it and it won't stick to the copper.

But personally I would tap a man up with a tig or even oxy to braze it.

[smartphone hater]

I personally would cut the rot out so you have a square/rectangular hole in rust free metal. Then cut a new bit of steel plate the same size & weld it in the hole, I would not try to weld as it is.

[PaulKemp]

On an old Rover I had, all the coolant pipes were steel, all rotted.
I slipped coolant hose pieces over the holes and clamped with jubilee clips either side

[blitzracing]

Just cut it off, and find a bit of rubber radiator hose with a T take off. Im sure you can find a couple of bits of tube somewhere to join the new bit of hose with some clips.

[static2010]

Flux coated silver solder.

easier than brazing to work with & low enough melting temp to do it with a blow torch as opposed to oxy acet...

[ch427]

you will probably blow it apart if you mig it. Can you not replace it with a section of rubber or similar flexible hose?

[phillpot]

More chance of knitting snot! Fast as you mend one hole another will appear (imho)

cut it off and re-fabricate or, as suggested, look for a rubber or silicne branch tee

[jimbob82]

you could solder it up as i suggested and then get it plasti-dipped no more problems then lol

[rash_decision]

Buy a new piece! Then you can be sure it's not gonna fail when you're away from home, in the pouring rain/snow/sleet/hail/howling wind/darkness (delete as appropriate!) Lol.

[Barkychoc]

Get a new one made up in stainless.
Tim at http://www.actproducts.co.uk/cooling/ is very helpful.

[rev-erend]

Get a new one .. it's knackered.

One real point in throwing good money and effort at a rusty old pipe.