Skytek 149-LT disassembly
Do you have any photos or a description of the disassembly?
I have a few photos of one taken apart, but not a step by step process. I can upload them if you want them. Also happen to have parts of two of them still on my bench. If you want to see how simple these are to disassemble, find any youtube video on an automotive starter tear-down. The parts and general assembly are very similar....not surprising since motor and solenoid in these LT starters are really automotive parts.
Having said that, it really is not difficult to pull one apart (other than needing an 8mm metric socket, a metric allen wrench (size?...can't remember), and a snap ring tool. There are also two other clips that can be carefully removed using needle nose pliers.
The major parts (motor, solenoid, and casting) will "fall apart" after removing the socket head screws holding the solenoid, and the larger 2 (8mm hex size) of the 4 bolts on the back of the motor. Be sure to catch the steel ball (between the end of the motor shaft and the gear assembly) and the seal between the end of the drive shaft and the casting pilot bearing. (Just don't let them hit the floor and run off to some other part of the shop.)
The gear train comes apart after removing the snap ring and two other clips on the shaft. (Same warning here about parts launching themselves across the shop floor.)
So, why was I doing this? Long story short, I had one starter with a broken casting (approx 100 hours flight time), a second one with a "loose" solenoid core (approx 900 hours flight time), and a third one my friend pulled when he said it was "sticking" on engine start (approx 200 hours flight time). The goal was to find enough good parts to make a functional starter. I did manage to do that, and it is running for now.....until I can get a B&C replacement (especially after seeing the wear condition on the throwout fork of two of the three starters). Also, I did not open up the motor any further, so I have no idea of the motor brush condition.
Cleaned up the good parts. Lightly greased the gear train with Aeroshell 22. Re-assembled, and all is good now.
But, there is a B&C replacement in my future. I'll take the 2.4 lb weight hit if it means all metal parts inside.