Radiator sealant

Streaky100 · Derestricted Danger Joined: 19 Sep 2019 Karma :

I have just noticed a leak from my radiator, which is the best radiator sealer for use on bikes?

redeem ouzzer · World Chat Champion Joined: 06 Oct 2015 Karma :

Just stick another radiator on it.
____________________
Be a REAL MAN!

Streaky100 · Derestricted Danger Joined: 19 Sep 2019 Karma :

Had a quick look and can only find one in America... Postage charges are way more than the item itself!!!!

- · Super Spammer Joined: 22 Oct 2013 Karma :

What bike is it? I'd be amazed if we couldn't find one a bit nearer.

You'll tend to find stuff like K-Seal or Radweld are more trouble than they're worth, even for a temporary bodge. For radiators, they'll just keep getting worse anyway.
____________________
TZR250 2MA road, TZR250 1KT road, TZR250 2MA race, TDR250, YZF-750R Boost colours.
Jaguar S Type 3.0 V6 Sport R, VW Transporter T5 GP LWB Shuttle 140ps DSG.

xX-Alex-Xx · World Chat Champion Joined: 12 Sep 2019 Karma :

If you want to clog your internal coolant passageways, throw some sealant into the coolant.

If you want to do it properly, get the radiator repaired or replaced.
____________________
DILLIGAF

Riejufixing · World Chat Champion Joined: 24 Jun 2018 Karma :

Streaky100 · Derestricted Danger Joined: 19 Sep 2019 Karma :

96 kawasaki gpz1100e

Riejufixing · World Chat Champion Joined: 24 Jun 2018 Karma :

Tankie · Crazy Courier Joined: 24 Feb 2017 Karma :

K seal does work,
but why is it leaking, physical damage or internal / external corrosion ?
____________________
Always learning, everyday is a school day

Streaky100 · Derestricted Danger Joined: 19 Sep 2019 Karma :

Looks like damage as the guard looks like it has took a hit near where it is leaking from

Tankie · Crazy Courier Joined: 24 Feb 2017 Karma :

That's ok ,the reason i ask is that if corrosion was the issue i think you would be up a creak without a paddle, so i think you may stand a chance with the K seal, it will probably buy you some time to sort out a replacement
____________________
Always learning, everyday is a school day

Confusion · Scooby Slapper Joined: 02 May 2013 Karma :

kramdra · World Chat Champion Joined: 28 Oct 2010 Karma :

I have not looked, but radiators are uaually pretty similar in function. You'll get a new cbr6 radiator for about 50 quid delivered on ebay and just need to make up some mount adaptors. In summer the fan may be on more than normal in slow traffic, but it wont be leaking. Other common bike radiators, fireblade or similar might be more suitable.

- · Super Spammer Joined: 22 Oct 2013 Karma :

It's the same engine as used in different forms in the GPZ900/1000/ZX10/ZZR1100 family. Have a look at a few photos of rads from those.
I bet at least one is near identical. Look at inlet locations, mounting points, size etc.

Does the genuine part number cross reference with other models?
____________________
TZR250 2MA road, TZR250 1KT road, TZR250 2MA race, TDR250, YZF-750R Boost colours.
Jaguar S Type 3.0 V6 Sport R, VW Transporter T5 GP LWB Shuttle 140ps DSG.

steve the grease · Crazy Courier Joined: 26 Jan 2018 Karma :

£600 notes is a lot , you could have it re-cored , indeed a custom one made from scratch for that...
However.
I have had good results with some radiators using araldite or other epoxy to repair the hole. Works on holes not cracks. Clean the area around the hole. Actually enlarge the hole using a pick tool or similar.
work mixed up epoxy into the hole as much as possible. when its gone off , mix up some more and splodge it on. Once it has gone off refit, fill and run, leave the rad cap off so there is no pressure. until the epoxy is well cured with the heat of the coolant. Once well cured fit rad cap. Worked for me.
____________________
All the above is my personal opinion, you can see my lips move, but I'm talking out of my arse.
I've been riding, and fixing , bikes for 50 years, in that time the more I learn, the less I am absolutely sure of.....