K seal or K seal ultimate?

[mole42]

Which is best? K seal Ultimate is three times the price of regular K seal......

[jagorstag]

How does the marketing spiel justify the price difference?

[RobinLegin]

Having seen what that stuff did to my my Alvis engine before it had its rebuild, I would suggest avoiding these products. I used K seal following head gasket failure in a France. It did not work. And neither did I ask for my money back either.

[Jonat127]

Why do you want to use it?
might work as a get you home emergency repair but no good long term.
didn't work at all with my blown head gasket either.
tried both, neither any good!

[trunt]

Crack a few eggs in there. Much cheaper

[KOY 23]

I’ve had K seal in my system for many years with no problems or leaks.
Expecting it to fix a blown head gasket I think is a tad optimistic.

[mole42]

In another discussion someone mentioned that a Stag engine rebuilder always used k-seal, so I was doing some research.

My only cooling problem is that the steel pipe across the top of the radiator has a pinhole so I have just ordered a piece of copper pipe to replace it. The head gaskets were replaced three years, 30,000 miles, ago so I rather hope they don’t need doing again!

Richard

[richardthestag]

I had good results from k-seal in a rover v8 that had dropped a liner. ran for another 20k miles, not bad for a get you home solution.

It did nothing for my stag with a blown head gasket when I was 200 miles from home, and Steelseal did nothing but fill my rad with turkish delight.

I wasnt trying to bodge it but just wanted to use it that weekend and really didnt want to strip the engine down.

In the end that is exactly what I did

[RobinLegin]

In another discussion someone mentioned that a Stag engine rebuilder always used k-seal, so I was doing some research.

My only cooling problem is that the steel pipe across the top of the radiator has a pinhole so I have just ordered a piece of copper pipe to replace it. The head gaskets were replaced three years, 30,000 miles, ago so I rather hope they don’t need doing again!

Richard

Richard,
why use copper, when there replacement stainless steel pipes from the likes of Robsport? I changed the old steel pipe across the top of the engine and there are now no leaks into the V.
Also is not copper is less reactive than aluminium ?

[mole42]

It’s the pipe on the radiator that I need to change, the one that connects the overflow bottle to the right-hand side. I think you’re referring to the heater supply pipe along the engine, which the PO of my car had already made in 15mm copper pipe!
Copper is easier to solder to the brass radiator top tank which is why I’m going for that.