Flap Circuit Pops

[mshac]

Here is a thread you should look at: http://www.337skymaster.com/messages...landing+always

[amexbmorgan]

Thanks MSHAC


Well today we did what you suggested and was able to replicate the pop by putting some resistance on the flaps. Indeed popped anything past 1/3.

Breaker has been replaced. I'm now leaning toward the motor. My airplane is a 1969 337D 337-1161. I think the motor is C301001-0504 or C301001-0902.

Do you think they still make this motor new. I can't seem to find it.

Thanks!

[mshac]

Still may not be the motor. You really should check the amps while operating the flaps. If you've already changed the CB, you know how to get access for the test.

Before I bought a new motor I would disconnect the motor and operate the flaps manually to be certain there is no binding.

Flap motor assembly is shown below.



Also a link to a photo: https://baspartsales.com/c301002-020...assy-volts-28/

[amexbmorgan]

MSHAC -

It was the motor. Installed a "new to me" one, flew and everything worked great.

It now takes 6 seconds to extend and retract vs 10, sounds much better and no circuit pop!

It was a 30min swap!

The rotor had too much play and was grounding (contacting) the case on one side.

Thanks for your help and conversation.

Bryan

[mshac]

Very happy you got it fixed! I'm pleased I could be of some service to you.

Cheers!