Quick RadWeld question

agw_01

agw_01

agw_01

Soldato
Joined
11 Apr 2004
Posts
19,959
Put some RadWeld into the 420 last night to cure a leaky rad (which was only recored a few months ago :rolleyes: ) and touch wood, it's stopped the leak.

Got to work today and popped the bonnet only to be suprised at no whisps of steam floating towards me and no drippy drip drip from the bottom of the rad... pretty chuffed.

Now, of course I don't want to leave that stuff floating around in there in case it blocks the turbo coolant feeds, so now that the leak has stopped is it ok to flush the system and refill with proper coolant.

I only put water in it when I refilled it last weekend to check for leaks. Glad I did now.

Cheers guys.
 
Theres far better products on the market than Radweld, DAE produce quite a good one, I put one in my system about 3 years ago when it had a fair leak and its still sealed fine.
 
Any recommendations? :) (i.e. actual product names)

I'll see how this does. I'll run it for a few months and might treat myself to another recore but get metal end tanks instead of the crappy plastic.

The turbo radiators are reknowned for being pretty crap. The radiator on my 220 was much much better quality and didn't leak a drop in all the time I had it.
 
Yeah by all means flush it out but you'll probably find the leak comes back afterwards!
 
Mark, doubt anyone does them for a Rover. Also there's nowhere really to mount an oil cooler next to the rad.

Jonny, do you think so? I thought radweld reacted with air when it gets hot, so therefore forms a tight seal where there was a hole before. I only put half the bottle in anyway (small bottle) so have got some left for if it comes back.

pinkaardvark, that's why I haven't turned my heater to hot (thus opening the valve in the matrix) ;)
 
pinkaardvark said:
I'd flush it as it's notorious for not only sealing the rad but also blocking up your heater matrix at the same time :(
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Aye, im not a big fan of radweld. We sell quite a lot of "DAE Radiator Stop Leak" to garages, Bars Leaks is quite popular too.
 
You could have cracked a couple of eggs in there too! that would have done the trick :D (Old mechanics trick I was told when I had a leaky rad. Didnt do it and I think its only for older types of rads :p )
 
I thought only the Vitesse engines had the oil cooler. Mine doesn't.

Mat, if Radweld doesn't block coolant pipes on my car, an egg yolk certainly would :p
 
if you know where the leak is you might be able to seal it for good with chemical metal or similar... obviously dont use it on the core but if its a little leak elsewhere more solid...
 
The fact is I've used these products loads of times and they have never given me a problem with anything blocking up except the holes I wanted them to block.
 
Jonny69 said:
The fact is I've used these products loads of times and they have never given me a problem with anything blocking up except the holes I wanted them to block.
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same here, my rover 214 had radweld in the water system for 2 years without a problem
 
Jonnycoupe said:
It should do, its the Ti's that dont.
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I had a quick look in my dinner break before, and yep it does have a cooler.

It's tucked in right behind the block. I thought it was further out hence why I hadn't seen it before.

Got home and still no leaks (gave it a quick blast up the bypass on the way home) so it seems to be holding for now... so I'll drop the coolant and flush it out tonight.

Something I wasn't sure on is if radweld is full of little bits or whether it's just fluid that hardens? I remember using BarsLeaks on the 214 and that had all little bits in it.
 
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