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radiator neck replacement
https://www.ausmini.com/forums/viewtopic.php?f=2&t=86519
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Author:  Diesel27 [ Sat Jul 19, 2014 7:53 pm ]
Post subject:  radiator neck replacement

has any one replaced the neck in car?

Author:  Mick [ Sat Jul 19, 2014 8:07 pm ]
Post subject:  Re: radiator neck replacement

You should just need to resolder it as its leaking around the bottom of the neck yeah? Through perforations in the solder?

I have done this in car with a butane burner and some solder. Often just having it re-melt is enough.

Author:  drmini in aust [ Sat Jul 19, 2014 8:17 pm ]
Post subject:  Re: radiator neck replacement

If it's damaged inside the neck, pull the rad out and take to a rad repair shop. They have the necks and gear to do it properly.

Author:  Diesel27 [ Sat Jul 19, 2014 8:41 pm ]
Post subject:  Re: radiator neck replacement

it has just come out from one and the cracks were not spotted.
a heat gun works for removal of a filler neck in about 5 mins.

Author:  drmini in aust [ Sat Jul 19, 2014 10:41 pm ]
Post subject:  Re: radiator neck replacement

If they repaired the rad and missed that, I'd take it back and complain.

Author:  Diesel27 [ Sun Jul 20, 2014 12:02 pm ]
Post subject:  Re: radiator neck replacement

this crack has a brother on the opposing side
Image

Author:  phreak97 [ Mon Jul 21, 2014 2:46 pm ]
Post subject:  radiator neck replacement

Those cracks wont actually affect anything unless you're running an expansion tank, they may leak if the radiator is over filled and overflows, but the overflow pipe does that anyway. Under normal use without an expansion tank the radiator seals at the ring at the bottom of the neck.
If you still want to change it you need some radiator solder and flux liquid (usually obtainable from radiator repair shops) and a decent butane torch or an oxy acetylene set.
I guess a heat gun would be fine if it can get the neck to about 400 degrees C.

It's pretty easy to do, I accidentally took mine off when I replaced my broken overflow pipe. (I'm using an expansion tank)

Author:  peterb [ Mon Jul 21, 2014 6:12 pm ]
Post subject:  Re: radiator neck replacement

If you're getting a new neck fitted, get a normal height one, so you can convert to closed system.

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