Rotax radiator leak

When my Rotax coolant radiator started to leak I took it to a local automotive radiator specialist who fixed it for me and it has been fine ever since. I think that they welded it.

I don't think Rotax makes radiators. They are aftermarket.

Where exactly was it leaking?

Sam, it is often quicker to use incorrect speech shorthand such as "Rotax radiator" than the correct "The unknown Rotax subcontractor who manufactures radiators for Rotax to Rotax' own specifications."

I'm simply trying to ascertain (1) whether the cores on the radiators supplied as "Rotax" are epoxied to the tanks or welded, and (2) whether anyone has experience with the EBay knock-offs advertised as "fully welded."

Richard the guy I share my hangar with got an ebay unit and before he fitted it (and modified the mountings) he pressure tested it to find it had a pinprick hole in one of the welds.

My experience with chinese  inverters, generators and some electronics is you buy 3 of theirs in the same time you would if you bought one from a reputeable supplier so its a false economy.

My mate then went to a local radiator manufacturer with his original faulty radiator and asked them to manufacture a replacement. He told them it was for his car heater system.

While you are there just check the milivolt  readings between say your radiator and the crankcase, your radiator cap and the crankcase. These results may cause you to earth them back to the crankcase if there are voltages which will be causing electrolysis and corrosion.

Regards.......Chook.