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#1
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The front and rear are both a MIL SPEC 8609- motor, the 24 10,000 rpm motor is still the same, but that is the end of the similarities. (unless you are talking about early 337s and 336s, they have the same motor)
The front one is a 524.6:1 planetary gear motor which gives you 215 oz/in force. The rear one is a 11??:1 planetary gear motor that gives you almost 500 oz/in of force as well as having an electric brake on the back. It is about 1.5"-2" longer than the front motor. I've stayed up lots of nights counting all the gear teeth and figuring out the DC motor side. One thing I have learned is how important that 2 amp inline fuse is to the system. There is enough force from the motors to cause some real damage before it overheats and burns out. The 2 amp fuse is there to protect both your skin and the motor windings. 
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#2
06-09-08, 09:46 AM
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Cowl Flap Motors
When I purchased my aircraft both front and rear cowl flap motors failed to move. My A&P
removed both motors and we removed the motor brush end cap, cleaned the dirt and gummy build up of oil. That was 8 years ago. They have been working fine ever since. Dale Campbell
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#3
06-12-08, 11:43 AM
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I should have went out and bought a lottery ticket yesterday, it truly was my lucky day. I found a bankruptcy liquidator that had a NEW cowl flap motor in inventory. They didn't know what it was, probably didn't care, and wanted $350 for it. Well.... Ok. "I guess that would be a decent deal." Hung up the phone and did a little victory dance.
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#4
06-16-08, 07:15 PM
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Quote:
After you have pillaged them, send me an email with their info so I too can try to find some parts for my T337C. rmorris@agsi.us ________ Qr50 Last edited by rmorris : 03-12-11 at 11:56 AM.
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