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Does my older 912UL gearbox have a clutch?

by Al C in 912 / 914 Technical Questions 10 years ago

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Re: Does my older 912UL gearbox have a clutch?

by Roger Lee » 10 years ago

Roger Lee

126 5.13k 4.56k

Forget 800.

Your engine's time limit is 600 hrs.
You either have a 600 hr or a 1000 hr. inspection.
This depends on your engine serial # and 100LL use or lack of its use.
1500 hr. engine is 600 hrs. no matter what fuel. The 2000 hr. engine is 600 hrs. if you use 100LL more than 30% of the time or 1000 hrs if you use mostly auto fuel.

Even though you don't have a clutch you need to check gears for wear and pitting, check the phenolic or plastic washer, shaft splines, bearing, fuel pump cam lobe and all internal parts for any uneven or excessive wear and some of this will not show up on the mag plug check or in the filter.

This isn't a hard or lengthy inspection and if you find a bad wearing or worn part it may be cheaper to replace it now before it fails or ruins everything else and cost 4-10 times more.

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

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