912is overheating

by Geoffrey McDougall in 912iS Technical Questions 10 years ago

I have a 912IS factory fitted to an aircraft. The engine coolant overheats after 5 minutes of operation at idle. Does anybody else have any experience with this problem

Re: 912is overheating

by Richard Boslaugh » 10 years ago

Richard Boslaugh

9 122 84

No. I installed the engine using the coolant radiator supplied by Kitfox. Below 30 deg F I see the temp about 120 Deg F or lower. Have not yet flown in temps above 50. A/C also has cabin heat radiator which is in parallel with engine radiator.

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Re: 912is overheating

by Roger Lee » 10 years ago

Roger Lee

125 5.12k 4.53k

Hi Geoffrey,

I seriously doubt it is the engine, but more likely the plumbing or a reduced radius hose. Something may not be plumbed correctly or hooked up backwards. They aren't having over heating issues so look at the setup on your plane. What is the temps you are seeing?

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

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Re: 912is overheating

by Geoffrey McDougall » 10 years ago

Geoffrey McDougall

2 7 0

I drained and refilled the engine coolant, we may have had an airlock as the problem has gone away for now.

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912is overheating

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