912ul water pump leak

[HighWing]

Don't tell anyone but black pepper
Is probably the best stop leak!

Sad to hear. It just might force me to share my black pepper with the airplane. Just love the stuff on everything.

Seriously, Thanks for the experience heads-up. I can go with that. Still, I wonder if it might have to do with the amount added. In the day, Rotax was very firm on the amount added because of our relatively small coolant capacity. It was just a fraction of the bottle. I had shutters on the radiator and still used them regularly up until the end.

[Xengineguy]

Sad to hear. It just might force me to share my black pepper with the airplane. Just love the stuff on everything.

Seriously, Thanks for the experience heads-up. I can go with that. Still, I wonder if it might have to do with the amount added. In the day, Rotax was very firm on the amount added because of our relatively small coolant capacity. It was just a fraction of the bottle. I had shutters on the radiator and still used them regularly up until the end.

Lowell I think you have a good point, unlike most people you followed the
Rotax instructions. Too often we think if a little will do,a bunch is better!
Not the case with this stuff. Mike