Motor screws - RC-Monster Forums

phidailo · **Motor screws -** 07.01.2006, 04:23 AM

I took out my motor and esc the first time around by tightening the screws into the windings with the gorillamaxx motor mount and Feigao 8xl using the supplied screws from gorillamaxx.

This time I got a BK and using Mike's heatsink with the same screws? With the added heatsink the screws are fine?

If not what is the correct length?

captain harlock · 07.01.2006, 08:15 PM

Well, how long are the screws, phidailo?

Sorry ( on behalf of everyone) for the delayed reply.

phidailo · 07.03.2006, 12:54 AM

Its not a problem...everyone here has helped me so much. I'm very thankful!
They are 8mm length screws

coolhandcountry · 07.03.2006, 12:09 PM

The correct length varies from truck to truck so it is hard to say. As long as it screws in the motor only a few mm you should be ok.

BrianG · 07.03.2006, 01:28 PM

What I usually do is take a long 3mm screw and slowly and lightly thread it into the motor holes until I feel it stop, then back it out 1mm. I then use electrical tape to mark where the screw goes into the hole. Back the screw out and measure from the tape edge to the end of the screw. This is the max length you can go in before it hits a coil. Make sure to do this for any/all holes you plan to use in case some coils are closer to the hole than others.

phidailo · 07.03.2006, 03:15 PM

Is it ok to use loctite on these or will it risk damaging the windings?

BrianG · 07.03.2006, 04:08 PM

I don't think it will harm the windings, but if you ever need to remove the screws, it will be difficult to clean the LT residue off the threads of the motor. I've never used LT on the motor and it's been fine. If you still want some type of locking function, use split lock-washers?

squeeforever · 07.03.2006, 05:01 PM

Or you could use the star type washers.

BrianG · 07.03.2006, 10:23 PM

Quote:

Originally Posted by squeeforever

Or you could use the star type washers.

Squee, star washers work well on plastics, but I haven't had much luck on metals. The edges of the star are supposed to gouge into the material making the screws hard to turn, but the harder metals (6061/7075 Al included) tend not to take as easily - at least in my experience.

squeeforever · 07.03.2006, 11:30 PM

Yea, there no MAJOR help, but the do help to a certain degree.

phidailo · 07.04.2006, 12:20 AM

well it seems like my problems just don't end...I took off the motor today to inspect the length of the screws. There is a rattle in the motor. The shaft is slighty moveable and I can see the bearing in the back move also. Are the ends on the BK's removable? Don't tell me I have dud motor :(

coolhandcountry · 07.04.2006, 07:04 AM

The end bells are removible. Tap the end of the motor shaft on a piece of wood not to hard and it should come right apart. I did mine by accident.