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Kyosho Landmax - wheels turn in opposite directions (wtf!?)

Kyosho Landmax - wheels turn in opposite directions (wtf!?)

Old 07-27-2010, 10:01 AM
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Default Kyosho Landmax - wheels turn in opposite directions (wtf!?)

Hey all,

After 8 years, I am revisiting my Kyosho Landmax after I mothballed it when the wierdest problem occurred....please help!

Here is the background: Back in the day, I gave the car a strip down (not touching any preassembled components) to clean it. When I reassembled it (as I have done many times before) I found that when I started her up, the spur gear was making the rear wheels rotate in one direction, and the front wheels rotate in an opposite direction. So the car went nowhere! This was very strange, as I would (of course - duh) expect the wheels to turn in the same direction when the car is held off the ground.

I have disassembled the central diff 5-6 times in the past and rebuilt it successfully. I have never touched the front or rear diffs. (And I don't believe myself to be a total muppet with these cars!)

Can anyone explain what I have done wrong here - it is such an odd problem and I'm sure its something fundamental, and very obvious I am missing.

If you can help, or need more info, let me know. I am desperate to fix this thing!
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Old 07-27-2010, 10:12 AM
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Whichever wheels (front or back) that are running backwards, take that diff out and reinstall it with the ring gear on the other side of the diff housing. I know that you don't think that you put it in backwards but thats the only thing that can cause what you are talking about. Good luck and take care.
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Old 07-27-2010, 10:12 AM
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Try rolling it on the ground, the center diff may be spinning them in opposite directions while off the ground. The center diff should bind if there is a problem when rolled on the ground.
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Old 07-27-2010, 11:47 AM
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Originally Posted by Slider30250 View Post
Whichever wheels (front or back) that are running backwards, take that diff out and reinstall it with the ring gear on the other side of the diff housing. I know that you don't think that you put it in backwards but thats the only thing that can cause what you are talking about. Good luck and take care.
+1
Thats most likely the problem.

I used to have a Landmax 1. Was a blast to drive...specially on flat off road with the soft block pattern rally tires...powerslides!
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Old 07-28-2010, 06:58 AM
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Originally Posted by Ambros303 View Post
+1
Thats most likely the problem.

I used to have a Landmax 1. Was a blast to drive...specially on flat off road with the soft block pattern rally tires...powerslides!
Guys,

Sorry to be a bit slow, but can you just clarify what you are saying here.

- What is the ring gear?

- And can you confirm you are referring to the central diff?

Many thanks,
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Old 07-28-2010, 08:01 AM
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Originally Posted by gazsouthgate View Post
Guys,

Sorry to be a bit slow, but can you just clarify what you are saying here.

- What is the ring gear?

- And can you confirm you are referring to the central diff?

Many thanks,
Whatever end is going in reverse is the diff assembly you need to address. You installed the diff upside down so you need to flip it over to the correct side. It's a simple fix...I don't know the layout of the vehicle you are talking about but on the Losi LST diff, the cases have a stamp, "This side up." If you put the diff in upside the same problem happens.
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