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Old 02-23-11, 12:51 AM
jhickam jhickam is offline
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Location: Dayton, Washington
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Hobbs meter

I have a 1973 337G model with a hobbs not working. It looks like there is a oil pressure switch to activate the meter in the radio bay. Is this correct or not? Is there any other switch that activates the hobbs meter in this system. I can not locate any switch that is activated by airflow on this model.
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Old 02-24-11, 01:11 PM
Ernie Martin's Avatar
Ernie Martin Ernie Martin is offline
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Under the left wing there is a lever that looks like the lever from a stall warning switch. It is the Hobbs switch, turning it on when the speed is above ~ 40 MPH. The lever or the switch sometimes breaks and the Hobbs never turns on. There is another thread about a month old where I indicate what switch/lever to buy.

Ernie
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