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How long can one safely run a 912s wh

by Gerry Kinsey in 912 / 914 Technical Questions 11 years ago

lost coolent in flight with 912s had to fly at reduced power for over 5 minutes... is there a safe margin built into the engine?

Re: How long can one safely run a 912s wh

by Roger Lee » 11 years ago

Roger Lee

127 5.2k 4.78k

Hi Gerry,

You engine could run as long as 30 min. without coolant. That said it should be at reduced power and watch the temps like a hawk. If the temps climb too high then the heads need to be sent off for hardness testing and a few other checks should be done. 5 min. at reduced power should have not been a big deal. Why did you loose coolant? The hose come off or split?

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

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Re: How long can one safely run a 912s wh

by Gerry Kinsey » 11 years ago

Gerry Kinsey

2 1 0

Roger: tks for the response....hose clamp cut into hose .... should have used ABA style worm geared clamp instead of general purpose worm gear....hose was goodyear hi-miler blue which is a softer silcone 2 layer type...lesson learned.... stick to ABA type worm gear or constant pressure spring type ,,,Regards Gerry

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