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clutch problems...
- Thread starter rider400
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Metalhead Matt
RCTalk VIP
It has to be the slipper. A missing grub screw would stop all movement, right? Worth checking into though. The grub screws attach the axles to the outputs on the tranny and diffs.
You need to figure out where your losing power. Obviously your clutch did have issues.
You said you had the two speed apart. Maybe take it back apart and with a parts diagram, make sure you put it back together properly and in the right order.
Also, does yours still have forward/reverse gears or was that removed with a forward only conversion? Does it still have hi/low gears via a knob on the transmission?
You said you had the two speed apart. Maybe take it back apart and with a parts diagram, make sure you put it back together properly and in the right order.
Also, does yours still have forward/reverse gears or was that removed with a forward only conversion? Does it still have hi/low gears via a knob on the transmission?
Are you sure that forward/reverse is properly engaged? Same with hi-low. They can get stuck between gears and transfer very little (if any) power to the diffs. I know my buddy had issues with his before we changed it to a forward only trans.
Ok. With the engine running and you applying throttle to get the Cb/spurs spinning, do you see the center shaft on the spurs spinning too? It's the shaft with the slipper nut.
Basically what you need to do is follow the power. Figure out where things are spinning and where they aren't. Wherever you find it not spinning when it should be is the place your having problems.
So:
1) flywheel spins
2) CB spins
3) Spurs spin
4) Spur shaft spins with the spurs at the same speed
5) Output shaft on the trans
6) Both front/rear center axles
7) All 4 outer axles (the actual axle between the diff and wheel)
8) The wheel nuts/axle the nut is on
9) Tires
Figure out the step your losing power and the part before it is your problem.
If you know your having a power transfer problem, it's best to keep the wheels stationary so they don't spin. That's the easiest part to stop from spinning manually. Rev the throttle a bit with quick blips and follow the power path to see what is and what isn't spinning. By holding the tires stationary, they obviously won't spin, so #9 is controlled.
If, when you do this and the only thing that spins is the flywheel, then your issue remains in your clutch.
Basically what you need to do is follow the power. Figure out where things are spinning and where they aren't. Wherever you find it not spinning when it should be is the place your having problems.
So:
1) flywheel spins
2) CB spins
3) Spurs spin
4) Spur shaft spins with the spurs at the same speed
5) Output shaft on the trans
6) Both front/rear center axles
7) All 4 outer axles (the actual axle between the diff and wheel)
8) The wheel nuts/axle the nut is on
9) Tires
Figure out the step your losing power and the part before it is your problem.
If you know your having a power transfer problem, it's best to keep the wheels stationary so they don't spin. That's the easiest part to stop from spinning manually. Rev the throttle a bit with quick blips and follow the power path to see what is and what isn't spinning. By holding the tires stationary, they obviously won't spin, so #9 is controlled.
If, when you do this and the only thing that spins is the flywheel, then your issue remains in your clutch.
Last edited:
2revo1maxx
Hardcore RCTalk User
It's probably the one way bearing. Take off the 1-2 gearset and carefully clean the one way bearing. Then use one drop of oil on it. If you really think the 1-2 gearset and slipper are causing problems then you may wanna ebay that stuff new. Starting over helped me out with my xxl.
I also had to sand the tranny input shaft with 800 grit sandpaper to get my owb working nicely.
I also had to sand the tranny input shaft with 800 grit sandpaper to get my owb working nicely.
You did what? Are you talking about the "slipping clutch" being the clutch on the engine inside the clutch bell? Sorry, just not sure what clutch your talking about.
If so, it could be worn... but for a typical clutch, I wouldn't think it would be that big of an issue.
Did you sand out the inside of the bell when you replaced the clutch? I always use a mild sand paper to clean up the inner surface of the bell and also use sand paper on the face of teh shoes themselves to rough them up a bit so the clutch breaks in faster. Before sanding and after sanding, you really need to wipe the shoes and inside of the bell with paper towel and DA to remove all oil residue. 1 drop of oil will fry a clutch...
If that's not the clutch your talking about, but is really the clutch in the two speed, it doesn't engage until second gear comes on. Which means 2revo is probably right with it being the OWB in the 1st gear. It's prone to wearing out over time and requires cleaning/maintenance to keep it up to snuff.
2revo1maxx
Hardcore RCTalk User
We need a good video to help you better.