K seal, or not K seal that is the question

[bigstraight6]

The rad in my Zodiac has developed a slight leak and I’ve been rather frightened at the potential cost of having it repaired, so what’s this K seal stuff like? I’ve heard mixed reports of it being rather good or “Don’t put that shit in an old car” so what do you learned peoples think?

I will get the rad repaired at some stage but I’ve got more pressing issues at the moment, like the clutch in the Triumph 2000 that started slipping on the way back from a show today.....

[Tamworthbay]

£100 shitter you want another 6 months from - yes, anything you value - no way.

[steveo3002]

take the rad off and get it fixed ..better in the long run

[derskine]

It does work for a while. But I certainly wouldn't use it on something like a Zodiac, get it repaired properly. Where is the leak? If on a tank, soldering is a viable option given that it's probably brass.

[Bren]

A rad repair is cheaper than an engine rebuild.

[sierraman]

I've used it several times its never failed me. Last time was in a Mondeo I was doing a 520 mile trip in every 2 week, stopped the leak and never had any overheating issues. A lot of these pulling it to bits going on about it blocking coolant channels were putting it in something that was fucked anyway. People forget that Barrs Leaks was an unofficial recommended additive on a Jaguar XJ12 coolant change.

 

If its a simple gasket swap, just do it, but if its a PITA or used as a get you by, then use it.

[fordperv]

How bad is the leak if it's not bad it might be worth tracking down the old school bloke who will repair the rad rather than the people who just want to replace the core, if your anywhere near stoke I can recommend a good chap

[The_Equalizer]

I had my Land Rover series 3 rad recored last month. It was £169 plus VAT and turned round in a week. Wouldn't do anything else now.

[sierraman]

Wouldn't use the radweld tablets now though, they were shit. Bars Leaks always used to work brilliant though. Liked the bottle shaped like a rad you got it in.

[dome]

I've had success soldering a brass rad before on my Scimitar. As others have said don't use it on something you value. An older radiator should be recoreable too if you can find a specialist

[plasticvandan]

I'd have a go soldering is personally.worst case you make an arse of it and just kept your repair back off.any jollop is going to block other stuff in your old and weaker cooling system

[lesapandre]

I had my Land Rover series 3 rad recored last month. It was £169 plus VAT and turned round in a week. Wouldn't do anything else now.

Where was that??