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kaiser · 4th May 2013, 23:33

I know this is a long thread, but the specifics of Wondarweld is discussed. It is certainly not the same as Radweld, which is designed to stop leaks in the radiator, and contains particles that swell in the holes.
I had a friend with a hole in his radiator in the Karoo in 45 degrees heat. He used it and refilled the radiator and the leak stopped. Two years later he was with me again, same radiator, same repair still worked in some very hot conditions.
I have had no problems with the heater at all, after using Wondarweld.

But the news is, that subsequent to this story, the car ran faultlessly for about 40000 km, as far as I remember.
Then it broke the belt to the power steering, and it lodged itself under the crank sprocket and I had to repair the engine. All valves bent, smacked one piston and one liner.
http://www.the75andztclub.co.uk/foru...d.php?t=101494
http://www.the75andztclub.co.uk/foru...d.php?t=130997

I found no traces of the Wondarweld anywhere where it should no be. So iow the cylinder head was not gummed up and water passages blocked. The engine was clean as a whistle.

Currently stands at close to 142000 km and goes like new.
The only issue is a "growl" from the gearbox, especially when cold, which I think it has always had to a lesser degree.

I have given an offer on a 1.8T, where the engine has suffered catastrophic failure (conrod through block and sump).
I plan to fit a 1.9TDi unit to that from a VW.All in theory so far.

4th May 2013, 23:33	#125
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	I know this is a long thread, but the specifics of Wondarweld is discussed. It is certainly not the same as Radweld, which is designed to stop leaks in the radiator, and contains particles that swell in the holes. I had a friend with a hole in his radiator in the Karoo in 45 degrees heat. He used it and refilled the radiator and the leak stopped. Two years later he was with me again, same radiator, same repair still worked in some very hot conditions. I have had no problems with the heater at all, after using Wondarweld. But the news is, that subsequent to this story, the car ran faultlessly for about 40000 km, as far as I remember. Then it broke the belt to the power steering, and it lodged itself under the crank sprocket and I had to repair the engine. All valves bent, smacked one piston and one liner. http://www.the75andztclub.co.uk/foru...d.php?t=101494 http://www.the75andztclub.co.uk/foru...d.php?t=130997 I found no traces of the Wondarweld anywhere where it should no be. So iow the cylinder head was not gummed up and water passages blocked. The engine was clean as a whistle. Currently stands at close to 142000 km and goes like new. The only issue is a "growl" from the gearbox, especially when cold, which I think it has always had to a lesser degree. I have given an offer on a 1.8T, where the engine has suffered catastrophic failure (conrod through block and sump). I plan to fit a 1.9TDi unit to that from a VW.All in theory so far.