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Spark plug size and torque values

by in 912 / 914 Technical Questions 10 years ago

What size spark plug wrench and what torque value is used on a 914 UL .

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Re: Spark plug size and torque values

by Roger Lee » 10 years ago

Roger Lee

125 5.12k 4.53k

16mm deep socket works and 177 in/lbs. (14.75 ft/lbs)

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

Thank you said by: John A. Drummond

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Re: Spark plug size and torque values

by bill martin » 10 years ago

bill martin

10 757 0

John,

12mm socket.

20nm torque (cold)

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Re: Spark plug size and torque values

by Roger Lee » 10 years ago

Roger Lee

125 5.12k 4.53k

Hi Bill,

Did you mean:
12mm is the thread hole size and the spark plug should at 16mm.

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

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Re: Spark plug size and torque values

by bill martin » 10 years ago

bill martin

10 757 0

Roger, John.

My mistake, socket size is 16mm.

Bill.

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Re: Spark plug size and torque values

by itemprop='name' » 10 years ago

0 0 0

Thanks for getting me started. Found out by comparing the basic spark plug wrench that came with my 914 to deep sockets at Home Depot that 18 mm is the correct size. I then confirmed with the actual plug. Torque values are helpful.

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