Davenger
Club Retro Rides Member
It's only metal
Posts: 7,272
Club RR Member Number: 140
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RadweldDavenger
@dminifreak
Club Retro Rides Member 140
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Wondering what the collective knowlege thought of the stuff.
Got a hole in my radiator, but I miss driving my Avenger while I wait for my new one.
Is it any good?
Will it clog/balls things up
etc
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Mr S
Posted a lot
10-4 Good buddy.
Posts: 2,654
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RadweldMr S
@bladerunner30
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Used it on my Mk3 Cavalier to cure a slight leak on the rad, 2 years later it hadn't killed anything and the car was still going strong and not leaking. I'm reliably informed it was fine for a year longer too, until the car ended up in a ditch...!!
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Suzuki GSXR1000 K2
BMW R1150GS
BMW K1200RS
Chevy K5 Blazer
Chevy Suburban LT
Jaguar XKR
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Where is the hole in the rad ?
If one of the tubes then you can pinch it with pliers etc above and below the leak to seal.
Paul H
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Davenger
Club Retro Rides Member
It's only metal
Posts: 7,272
Club RR Member Number: 140
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RadweldDavenger
@dminifreak
Club Retro Rides Member 140
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That's the best advice I've had this year.
Cheers Paul
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bl1300
Posted a lot
Posts: 1,678
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I found printing in a 1959 edition of Car Mechanics magazine mention of cracking an egg into a radiator to seal a leak, ive not tried it but I have heard it a few times before.
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Current fleet.
1967 DAF 44
1974 VW Beetle 1303s
1975 Triumph Spitfire MkIV
1988 VW LT45 Beavertail
1998 Volvo V70 2.5
1959 Fordson Dexta
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I've used it before on a mates car as a "get you home" type fix but it was still holding strong a year or so later when the car was scrapped.
I did have a 306 a while back which obviously had been filled with the stuff and the heater was completely poo where it had clogged the matrix.
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Used it on a Saab 900 for five years for a prin pick held well
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Dez
Club Retro Rides Member
And I won't sit down. And I won't shut up. And most of all I will not grow up.
Posts: 11,712
Club RR Member Number: 34
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RadweldDez
@dez
Club Retro Rides Member 34
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Crumbling a cigarette or two into the rad then running it up to temp works just as well and don't fill the rest of the system with radweld sludge.
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Davenger
Club Retro Rides Member
It's only metal
Posts: 7,272
Club RR Member Number: 140
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RadweldDavenger
@dminifreak
Club Retro Rides Member 140
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Really?
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I've used it a few times and it's worked very well. The only time it didn't was on a seriously knackered Mini rad which really was falling apart. I think it was sealing the holes but every time it did, a new one appeared.
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Jaguar S-Type 3.0 SE
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LowStandards
Club Retro Rides Member
Bigging Up The Sum Sum Man Since '99
Posts: 2,633 
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I've used k seal and radweld, both pretty much the same. I've never stripped the car later to find pipes blocked etc
I was led to believe it only activated at a certain temp when it finds air?
Bash it in, enjoy your car, think about it again in a years time when that new rads still sitting in the garage!
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I haven't used it for years, but it used to do the trick back in the day.
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Also used it on a 02 plate astra and did the job on that 20k miles ago
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Used it on my old Polo, it worked then I got another hole, used it again and it worked, then the rad fell out of the car and got scraped along the road for about twenty meters.. put it back in, filled it with radweld and it worked for about another year until I scrapped it.
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Used it on my old Polo, it worked then I got another hole, used it again and it worked, then the rad fell out of the car and got scraped along the road for about twenty meters.. put it back in, filled it with radweld and it worked for about another year until I scrapped it. LOL if you saw that in an advert they wouldn't believe it!! I've used it in the past with great effect and leak never reapaired. |
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luckyseven
Posted a lot
Owning sneering dismissive pedantry since 1970
Posts: 3,839
Club RR Member Number: 45
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Radweldluckyseven
@luckyseven
Club Retro Rides Member 45
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My experience of it would lead me to say "DON'T DO IT!". *ahem* sorry for shouting, but I have a hatred of bodgery, especially after spending a fair while trying to reclaim an MR2s cooling system from the previous owners' attempt to "cure" a leak with radweld  . Even adding the disclaimer that an SW20 cooling system is slightly more complex than quantum physics and has more pipework than the Large Hadron Collider, it was one of the more hateful experiences I've ever had with a car. If there's a problem I'd say fix it, not try to cover it over with a sticking plaster. This is what I had to put right....    As an addendum, K-seal is possibly even more hostile, there was a spate of it apparently contributing to the demise of rotary engines some years ago after a certain trader in the UK managed to persuade the rotary community that it was the best thing evarr. Apparently not, it does horrid things to alloy components, water seals and bearing surfaces. I guess this may not be much of a concern on Avenger lumps, lol, but it's one of those things that I find it suspect that not a single manufacturer would stand by an engine with such additives running around inside. Just my 2ps worth, like |
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taurus
Posted a lot
Posts: 1,084
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I've used it and never had any problems with it blocking things - I suspect it takes more than a single dose to do any damage.
I had a mate with a Golf radiator that had a huge leak in it - as a get you home I said I'd try Radweld, but I didn't think it would hold it due to the size of the leak. It fixed it instantly and it's still running the same rad. years later.
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Not sure how it would react in the pipe without heat/air it needs to go hard. How much did he put in? A gallon? I'm sure that's something else - I had the exact same thing on my Astra, but it wasn't radweld.  |
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. Even adding the disclaimer that an SW20 cooling system is slightly more complex than quantum physics and has more pipework than the Large Hadron Collider, it was one of the more hateful experiences I've ever had with a car. 
