today i was hitting a little jump and my buggy broke. now what happeans is the car revs up but it only go's at one speed like 5 mph. just revs but nothing happeans. when u pick it up the tires spin fine and can accomodate the throttle position. i think its something in the front gearcase, but want to know what you guys think it is??
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slip then no slip?!?!?
- Thread starter tbsleeper
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El Pirata
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It almost sounds like your engine shifted or you buned out your clutch. Can you elaborate a little more on what your buggy does. Can you spin the front wheels freely? The rear as well? Holding one front wheel and rear wheel on a solid surface spin either one of the free wheels, does the wheel at the other end of the car spin? If you can do all of the above items then more than likely it has nothing to do with your diffs and more than likely something in the engine or clutch..
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- #3
with both of the back wheels held from spinning i can spin one of the front wheels and the other front wheel will spin after like a 3rd revolution but if i spin it real slowly they will spin together. if i spin 1 of the back wheels no other wheels will spin? i dont get your other questions but I'm glad someone is understanding what I'm sayin so thank you:cheerful:
i meant like 3/4 of a revolution
also another thing that happean was the hex hub broke off with the wheel so i put it back on and tightened the hex screw and now it seems fine??? i think i might have gotton a lemon.
i meant like 3/4 of a revolution
also another thing that happean was the hex hub broke off with the wheel so i put it back on and tightened the hex screw and now it seems fine??? i think i might have gotton a lemon.
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A few things to check here. It throttles up with all 4 wheels off the ground? It should spin with no load unless all the teeth are stripped on a main gear or something has been jammed too tight. Put it on the ground and hold it there while you raise the throttle and see if it pulls. Any wierd sound?
First, check your slipper clutch. I've seen these melt. Check for tightness on the engine and trans. something might have moved, and the gears aren't meshing deep enough. Check the clutch in the bell. Lastly, if you haven't found anything wrong, check inside the tranny and diffs. If all 4 wheels don't pull strong when under load, it's not in the front or rear diffs. I can't imagine you could have damaged both.
First, check your slipper clutch. I've seen these melt. Check for tightness on the engine and trans. something might have moved, and the gears aren't meshing deep enough. Check the clutch in the bell. Lastly, if you haven't found anything wrong, check inside the tranny and diffs. If all 4 wheels don't pull strong when under load, it's not in the front or rear diffs. I can't imagine you could have damaged both.
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- #5
well when i always start it i always put my foot in front of the front wheel. so when it first happeaned i shout it off checked it out then started it again and hit the gas and it never really moved. it revved but gave little resistance.
o ya when you hit the brakes it dont even stop. i noticed the center drive shaft stops but the wheels wont?
o ya when you hit the brakes it dont even stop. i noticed the center drive shaft stops but the wheels wont?
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No brakes either? Then it's almost none of the above.
Hold the driveshaft going to the front end, and roll both front wheels on the ground. Is the shaft hard to hold, or can you stop it from spinning? Do the same for the rear.
if you can't hold it, hold it with pliers and roll it. If the front or rear diff are in good shape, you won't be able to hold it, it will act like a brake.
It almost sounds to me like you lost something in each diff. or maybe just broke the end connections of the drive shafts.
Hold the driveshaft going to the front end, and roll both front wheels on the ground. Is the shaft hard to hold, or can you stop it from spinning? Do the same for the rear.
if you can't hold it, hold it with pliers and roll it. If the front or rear diff are in good shape, you won't be able to hold it, it will act like a brake.
It almost sounds to me like you lost something in each diff. or maybe just broke the end connections of the drive shafts.
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- #8
nope theyre both hard to hold?!?! I'm starting to think its something in the transmission.
but tell me this, if i spin one back wheel the opposite wheel will not spin but the drive shaft goin to the trans will but the front drive shaft will not.
if i spin one of the front wheels the other will spin but the drive shaft will not but looks like its trying and the rear will not do anything.
if i hold one front tire but spin the other front the two rear plus the one front i am spinning will spin but it makes a grinding feeling
if i do the same as above with the back the rear drive shaft will spin but thats it
i hope someone can get an idea of wats going on cuz i dont want to go pay a $100 for my lhs to fix it
WOW i just tried again and now the back will spin withthe other when I'm not holdign anything!!
but tell me this, if i spin one back wheel the opposite wheel will not spin but the drive shaft goin to the trans will but the front drive shaft will not.
if i spin one of the front wheels the other will spin but the drive shaft will not but looks like its trying and the rear will not do anything.
if i hold one front tire but spin the other front the two rear plus the one front i am spinning will spin but it makes a grinding feeling
if i do the same as above with the back the rear drive shaft will spin but thats it
i hope someone can get an idea of wats going on cuz i dont want to go pay a $100 for my lhs to fix it
WOW i just tried again and now the back will spin withthe other when I'm not holdign anything!!
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It's in your tranny.
Get out your tools and tear it down. Keep all the parts in order, even if you have to draw pictures to help get it together again. If you still have your manual, check the exploded views for order of re-assembly.
It will only be one or 2 gears that have stripped, and you can order them with the part numbers shown in the manual. Try the LHS where you get parts. They might have them in stock. If not, you can order them and get them in less than a week.
Don't be afraid to take it apart. It's not a computer shifted 7-speed with overdrive.
This won't be the last time you'll have to repair something, so get used to it. Learn now, or keep paying someone else to do it.
Open the Tranny. You will SEE the problem right away. Take the tranny and manual to the hobby shop and order the parts. Leave the tranny the way it is till the parts come in, that way you haven't forgotten where the parts go.
Get out your tools and tear it down. Keep all the parts in order, even if you have to draw pictures to help get it together again. If you still have your manual, check the exploded views for order of re-assembly.
It will only be one or 2 gears that have stripped, and you can order them with the part numbers shown in the manual. Try the LHS where you get parts. They might have them in stock. If not, you can order them and get them in less than a week.
Don't be afraid to take it apart. It's not a computer shifted 7-speed with overdrive.
This won't be the last time you'll have to repair something, so get used to it. Learn now, or keep paying someone else to do it.
Open the Tranny. You will SEE the problem right away. Take the tranny and manual to the hobby shop and order the parts. Leave the tranny the way it is till the parts come in, that way you haven't forgotten where the parts go.
- Thread starter
- #10
you think it could be the clutch shoes. but the grinding i heard came from teh front gearcase? and how could all this happean off a 2 foot jump and!! i landed perfect but i think it hapened cuz when it landed the it looked like all the brakes locked up
also when u spin teh front wheels really really fast the rear drive shaft twitches so its gotta be sumtin in that trans.
also when u spin teh front wheels really really fast the rear drive shaft twitches so its gotta be sumtin in that trans.
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The clutch shoes are in the bell, going to the spur gear. That would have no effect on it not braking.
Had another thought.... Before you open the trans, check the servo to the brakes. put a little load on it with your fingers, engage it a few times and see if it's stripped. Do the same with the shifting servo.
If both of them check out okay, it's in the tranny.
Had another thought.... Before you open the trans, check the servo to the brakes. put a little load on it with your fingers, engage it a few times and see if it's stripped. Do the same with the shifting servo.
If both of them check out okay, it's in the tranny.
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Getting stranger.
Pull the wheels, check the hexes. Almost impossible to blow all 4, though.
Next, open the front and rear diff. If the drive shafts stop when you brake, and the wheels don't, it has to be in the diff gears.
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Before you take anything apart now, replace the hex. It hasn't happened to me yet, but it's just possible that all the power is going to a free spinning shaft, and not transferring to the other three wheels.
I hope that's the solution. It sure beats a tear down.
I hope that's the solution. It sure beats a tear down.
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I think you're good to go. That's good news.
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Won't know till you try it. If the axle was spinning freely in that one wheel, that could be the whole problem.
It's not positraction, and doesn't have locked diffs, so all the power went to the free spinning shaft.
That's my semi-educated guess at this point anyway.
Run the car, and I'll check back tomorrow to see how you made out.
It's not positraction, and doesn't have locked diffs, so all the power went to the free spinning shaft.
That's my semi-educated guess at this point anyway.
Run the car, and I'll check back tomorrow to see how you made out.
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Actually, that is not quite right. If the clutch shoes are stuck in an engaged position (or in my case jammed up against the front face of the clutch bell), the engine will still drive the tranny even at a low idle. The situation would be similar to driving with the parking brake on, it would be tough to do...but still do-able.
It can not hurt to take a look under the bell to make certain the clutch shoes are where they belong (as in all the way on their pegs with springs properly seated).
