coolant leak

by Tj Sch in General Tech Discussion 10 years ago

I had a coolant leak on my 912uls and decided it was time to change the hoses as part of the 5year rubber replacement which is long overdue.
when I took the hose off of the water pump I discovered that my leak comes from a loose inlet tube coming from my water pump. how are these tubes fastened into the pump, threaded?
Any guidance on this would be appreciated.
Thanks

Re: coolant leak

by Roger Lee » 10 years ago

Roger Lee

128 5.28k 4.98k

Hi Tim,

It is screwed in. First mark the tube and and housing with a magic marker in the correct position before you turn it to remove it so you will know it's correct orientation. Use a heat gun and get it good and hot until it unscrews easily. Clean the threads on the tube and in the inlet with some lacquer thinner. I usually use a soft brush to clean these threads on top and down below for these tubed fittings. Personally I prefer to use Loctite 648 (green) over Loctite 243 (blue) on these these fittings. Seems I never have to go back and do them again. They won't come loose unless they are heated fairy hot.

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

Thank you said by: Ralph Hallett

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coolant leak

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