Rumble gearbox

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HammerWihoutASickle
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Posts: 165
Joined: Fri Aug 18, 2017 5:56 pm
Location: Newburgh, NY - 12550

Rumble gearbox

Post by HammerWihoutASickle »

I finally finished replacing the gearboxes on Rumble the T-90. Filing his sprockets was a pain to accommodate for his new, large screws that attack the wheels and drive shafts together.
I can't help but feel some resistance on the left tracks, but some lube fixed that. I didn't put these round things (I forget what they're called) in between the sprocket and shaft assembly because it didn't want to fit.

Should I run it as is, or reassemble with them?
Also in the pictures is the lube I used that the hobby store suggested I use.ImageImageImageImageImage

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Heng Long T-90SM
Heng Long Leopard 2A6
Heng Long Challenger 2 (credit to rctankmodified)


I ask too many questions.
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c.rainford73
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Location: Connecticut USA

Re: Rumble gearbox

Post by c.rainford73 »

Hello are those lock washers that might fit between the larger screw and the drive sprockets? I use them but if not at least add a dab of liquid thread lock on the screw tips before you sinch them down on the hubs :thumbup:
Tanks alot.... :wave:
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HammerWihoutASickle
Lance Corporal
Posts: 165
Joined: Fri Aug 18, 2017 5:56 pm
Location: Newburgh, NY - 12550

Re: Rumble gearbox

Post by HammerWihoutASickle »

c.rainford73 wrote:Hello are those lock washers that might fit between the larger screw and the drive sprockets? I use them but if not at least add a dab of liquid thread lock on the screw tips before you sinch them down on the hubs Image
Yes, that's them. I'll add some liquid in there.
Thanks for the heads up.

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Heng Long T-90SM
Heng Long Leopard 2A6
Heng Long Challenger 2 (credit to rctankmodified)


I ask too many questions.
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c.rainford73
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Posts: 6104
Joined: Thu Aug 25, 2016 7:34 pm
Location: Connecticut USA

Re: Rumble gearbox

Post by c.rainford73 »

Just a wee bit to keep them from loosening
Tanks alot.... :wave:
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