Dave trimmer

One of my first planes is currently gummed up because it has sat for a long while without running. I am packing up my planes to prepare for college, and want to know if there is a way to use after run oil to prevent the other engines from gumming up. I never ran my engines dry at the field, but I do know this will be a problem over an extended amount of time if I don't, and I really don't want to take them all outside, set them all up just to run after run oil through them.

thanks, dave

w8ye

My Feedback: (16)

Put some thin oil in them like 3 and 1 or WD40 to try to break up the gum. The WD40 is not recommended for long term storage or continuous use

I use ATF or Dexron or Mercon oil for after run oil. It cuts and dissolves the gum forming oils and does not evaporate or dry up.

Some people use Marvel Mystery air tool oil

The Ghost

Dave, They are gummed up because of the castor in the fuel, Just take out the plug inject some oil in and in the carb and turn over a heap to get it into the bearings. If the motors are out of the model take of the back plate and wash out with some fuel and then oil up. Hope this helps.

Cheers

flyinrog

My Feedback: (1)

The quickest thing that is gonna free up a (gummed) motor is fuel,,,and it already has oil of some kind in it...put a few drops in the cylinder and a few in the carb and slowly move it back and forth until you are comfortable turning it over....Rog