robysoldtamiya
08-31-2005, 04:06 PM
I'm not start building a truck, I'm just doing some mods to an old truck to improve off-road use without the pain to find spare parts. The idea was to lock all 3 diffs, but this would end inbreaking them, so the project is build new locked diffs using easy to find gears. The truck has same front and rear diffs. I found that Tamiya TG10 diff gears could work, I just have to trim them and reduce diameter to 32mm. I then built a gear mount, it took me 3 times to have the right one. A similar will be built for front.
http://oldtamiya.interfree.it/projects/kyosho_pajero_01.jpg
http://oldtamiya.interfree.it/projects/kyosho_pajero_05.jpg
I wanted to use both original axales, but once into the diff mount I found they are not centntered, so I will have to find an one piece steel axale.
http://oldtamiya.interfree.it/projects/kyosho_pajero_06.jpg
One weak point of rear axale is it breaks easily. This truck came with the axale broken, so I made a brass tube and glued it inside to reinforce.
http://oldtamiya.interfree.it/projects/kyosho_pajero_02.jpg
http://oldtamiya.interfree.it/projects/kyosho_pajero_03.jpg
Next I went in the central diff. This diff turns by a belt from main spur gear.
I bought aluminium pulleys and reinforced belts since this will be a weak point.
http://oldtamiya.interfree.it/projects/kyosho_pajero_07.jpg
Again I made a brass shaft for the pulley, then I had to make collars for ballbearings since the shaft is 6mm diameter and ballbearings are 8mm inside.
http://oldtamiya.interfree.it/projects/kyosho_pajero_08.jpg
http://oldtamiya.interfree.it/projects/kyosho_pajero_09.jpg
The central unit assembled.
http://oldtamiya.interfree.it/projects/kyosho_pajero_10.jpg
In the next days I will make front locked diff, then I will rebuild main spur gear with new pulley. I'm thinking to add a 3 speed gearbox now that they are easy to find. But this will be a second stage work. I really want to trst all my gears before going on with more mods.
I love Kyosho 1:9 trucks and I'd like to run them without troubles.
Stay tunes
Roby
http://oldtamiya.interfree.it/projects/kyosho_pajero_01.jpg
http://oldtamiya.interfree.it/projects/kyosho_pajero_05.jpg
I wanted to use both original axales, but once into the diff mount I found they are not centntered, so I will have to find an one piece steel axale.
http://oldtamiya.interfree.it/projects/kyosho_pajero_06.jpg
One weak point of rear axale is it breaks easily. This truck came with the axale broken, so I made a brass tube and glued it inside to reinforce.
http://oldtamiya.interfree.it/projects/kyosho_pajero_02.jpg
http://oldtamiya.interfree.it/projects/kyosho_pajero_03.jpg
Next I went in the central diff. This diff turns by a belt from main spur gear.
I bought aluminium pulleys and reinforced belts since this will be a weak point.
http://oldtamiya.interfree.it/projects/kyosho_pajero_07.jpg
Again I made a brass shaft for the pulley, then I had to make collars for ballbearings since the shaft is 6mm diameter and ballbearings are 8mm inside.
http://oldtamiya.interfree.it/projects/kyosho_pajero_08.jpg
http://oldtamiya.interfree.it/projects/kyosho_pajero_09.jpg
The central unit assembled.
http://oldtamiya.interfree.it/projects/kyosho_pajero_10.jpg
In the next days I will make front locked diff, then I will rebuild main spur gear with new pulley. I'm thinking to add a 3 speed gearbox now that they are easy to find. But this will be a second stage work. I really want to trst all my gears before going on with more mods.
I love Kyosho 1:9 trucks and I'd like to run them without troubles.
Stay tunes
Roby