Discussion in 'FMA' started by Shindouz, Sep 23, 2018.
Anyone has anything to share about this? I'd like a smoother transmission for my fma
Hi i did a few modifications in my chassis.
Here is the video:
Theres still a lot to do though.
Ill provide pics on what i did when i have the time.
thanks for sharing though, is that small washers between the crown and spur gear? if so how many pieces?
Also why didn't you trimmed the crown gear on the front and rear?
i didn't do anything crazy to my transmission to get it nice and smooth and quiet
all i did was add a plastic bushing to the 'spur gear' the top gear that the motor drives
and i used a 1.5mm spacer in the rear gearbox between the crown hear and other gear
other than that, just some real oil on the gears - the thing is fast for a 'box stock' car (all kit parts, no HG/custom/carbon/aluminum parts and the motor that comes in the kit) it actually got teched because it lapped a car, twice
The FMA has most of those old problems fixed. It’s way stronger and has a tighter transmission so there’s less work than say a Super II.
I only have two FMAs and both are mostly stock but it’s amazing how quiet they are. That basically means they are fast.
How does the plastic bushing looks like that u attached next to the counter gear?
I see. Yeah it is a really fast stock car but I wanna go beyond that of course. I'm also wondering if you have ideas for the Super FM transmission as well?
it pushes into the space in the spur gear on the side that faces away from the motor. its one of the spacers from the MA gears i had extra since my MA uses bearings
okay can u like take a screenshot of it and item number?
i'll get you it when i get home from work
but anyway i want to know what is the setting for this floating transmission in the video
here are my pics. the spare parts are the wheel bushings - Tamiya give you 6 in the FM-A kit on the tree with the battery door and the gear covers, etc
You might wanna see this post on Instagram for your FMA transmission.
hey roscoe i dont get what he meant by cutting the scrape off as i dont see anything on my fma chasssis there and also i feel skeptical about using the shaved pinion gear to hold the crown gear as it move position after a couple of hits. Anymore more secure than that?
i think i saw in many vids they use tamiya tape
i see okay good idea
i just don't know if heating plastic parts are allowed in tamiya rules, but what i am thinking is if you have spare pinion gear, you shaved it, heat it a little to soften, squeeze it a little to tighten then let it cool. it this way you get a tighter locking for crown gear.
i see okay thanks for the idea.
You shave it for both a) reducing weight and b) so it doesn't contact the gear box walls if it wobbles.
As to using the pinion gear, you're meant to dab a touch of glue on the axle side to prevent it slipping back thus holding the gear in position correctly. Using tamiya tape has the same result but it's a little more difficult to get accurate as you have to wrap it around the axle in the correct position and make sure nothing is going to scrape it which will inadvertently pull up the tape.
Actually i dont the instagram post from arii
He is not using the super x propeller shaft and what is a black plastic washer does it have any other replacement because i dont have a ultra or HPD motor right now.
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