Rear cowl cable replacement

MelsML55 · #1 11-30-21, 03:18 PM

With the help of Matt Elder I have a new plan to upgrade to the later model style that uses micro switches. Thank you for your input!

TomM · #2 12-01-21, 12:03 AM

Matt is a good guy. He helped me out with rebuilding my flap motor.

kbecker · #3 12-01-21, 04:09 AM

My experience with the microswitches is that they can sometimes get out of adjustment and if that happens, even slightly, the cowl flap motors will continue to run and burn out. As we all know they are expensive to replace.

My 77 337G has this set up, but I never depend on the microswitches to turn off the cowl flap motors. As soon as I get the indicator lights that the cowl flaps are open or closed, I return the selector switch to the middle (off) position. Using this method I haven't (knock on wood) had a cowl flap motor issue in 20 years.

Just my 2 cents.

Kevin

n86121 · #4 12-05-21, 02:41 PM

The cowl flap arrangement was poorly thought out. It exercises the wiring bundle and mechanism with each cycle.

Probably someone at Cessna said, 'We forgot the cowl flap motor, so make it fit in this rectangular foot print."

I can't recall, but I believe a 2a inline fuse could save you a lot of grief.

D