NITRO NUT Posted June 13, 2013 Share Posted June 13, 2013 hi guys when i started my nitro and got it going it wouldn't move so i gave it higher revs, it moved but when it was moving it was a very on/off movement so it would go and slow then go again. When it gets going it's fine but starting is a pain, and it has to have quite high revs to go, (i don't think these problems are connected). when i lift it off the ground and get the wheels turning slowly the wheels, axils and the drive shaft all turn like there meshing with the cogs and then not. any ideas? NITRO NUT Quote Link to comment Share on other sites More sharing options...
rytis Posted June 13, 2013 Share Posted June 13, 2013 (edited) too lean or too rich... Edited June 13, 2013 by rytis Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 13, 2013 Author Share Posted June 13, 2013 too lean or too rich... i have it set on the recommended settings in the manual. but could be Quote Link to comment Share on other sites More sharing options...
CyberRaver Posted June 13, 2013 Share Posted June 13, 2013 recommended settings in manuals are always on the rich side, try a little tuning Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 13, 2013 Author Share Posted June 13, 2013 will do Quote Link to comment Share on other sites More sharing options...
rytis Posted June 13, 2013 Share Posted June 13, 2013 try to make a video of it running it will be easier for us to tell you what's wrong with it. Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 i'll try but last time i tried to film it it kept cutting out and i couldn't steer it properly because i was holding the camera. ] what should i include it the vid? Quote Link to comment Share on other sites More sharing options...
HATZY Posted June 14, 2013 Share Posted June 14, 2013 have you tried turning the wheels by hand to make sure its nothing in the driveline fouling? eg a warped brake disc Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 have you tried turning the wheels by hand to make sure its nothing in the driveline fouling? eg a warped brake disc nope i'll give it a try. do you mean when the engines running or when it's turned on but the engines not running. Quote Link to comment Share on other sites More sharing options...
rytis Posted June 14, 2013 Share Posted June 14, 2013 i'll try but last time i tried to film it it kept cutting out and i couldn't steer it properly because i was holding the camera. ] what should i include it the vid? show us how you start it and what happens after you started it and try to drive it. we need to see the "shaking" moments, more than one would really help. Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 (edited) OK i'll give it a go! it probably won't be on till tonight. Edited June 14, 2013 by NITRO NUT Quote Link to comment Share on other sites More sharing options...
rytis Posted June 14, 2013 Share Posted June 14, 2013 OK i'll give it a go! it probably won't be on till tonight. it's up to you mate... Quote Link to comment Share on other sites More sharing options...
HATZY Posted June 14, 2013 Share Posted June 14, 2013 nope i'll give it a try. do you mean when the engines running or when it's turned on but the engines not running. engine off, radio on. tbh i cant really see this being a tuning issue, could be wrong but to me it sounds more like driveline issues. hold a wheel and turn the oppersite side, eg, hold front left wheel and turn front right. do that on all 4 corners Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 engine off, radio on. tbh i cant really see this being a tuning issue, could be wrong but to me it sounds more like driveline issues. hold a wheel and turn the oppersite side, eg, hold front left wheel and turn front right. do that on all 4 corners ok, and yes i agree it doesn't seem like a tuning issue, when i'm turning the wheels what should i look for? and by the way there'll be a vid soon Quote Link to comment Share on other sites More sharing options...
HATZY Posted June 14, 2013 Share Posted June 14, 2013 binding or snagging. make sure atleast 1 of the other wheels is not on the ground though or it wont work Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 ok i've got a vid of it on the link below Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 binding or snagging. make sure atleast 1 of the other wheels is not on the ground though or it wont work when i do this the wheel opposite turns, the drive shaft wheel doesn't but it does seem to be trying to catch on and the back ones don't turn when i turn the front one(s)? is that right? Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 show us how you start it and what happens after you started it and try to drive it. we need to see the "shaking" moments, more than one would really help. sorry couldn't film starting it it wouldn't start so when it did it wasn't filming. sorry Quote Link to comment Share on other sites More sharing options...
HATZY Posted June 14, 2013 Share Posted June 14, 2013 if you are turning the front right wheel, you need to hold the left front so it cant turn, this will transfer the turning to the central drive shaft, you will need to make sure atleast 1 of the back wheels is off the ground or you wont be able to turn the wheel. do this on ever corner. if it all turns free and smooth, then the issue is elsewhere. thinking back, ive had simillar from a loose brake pad allowing the disc to move around on the dog cup more than it should which caused the disc to keep snagging the pad 1 Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 ok, i was doing it wrong i'll give the disk brakes a check. Quote Link to comment Share on other sites More sharing options...
HATZY Posted June 14, 2013 Share Posted June 14, 2013 ok i've got a vid of it on the link below there is nothing wrong with your engine. thats deffinately a snagging driveline. due to the fact that the wheels all do it at the same time, its deffinately not a particular corner causing the issue. so i would check the central drive shafts are not bent and fouling the chassis and the make sure the brake is not too loose or too tight and make sure the disc aint warped. also make sure there is no dirt or stones in the spur mesh. if all is ok there, you might need to strip the diffs Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 if you are turning the front right wheel, you need to hold the left front so it cant turn, this will transfer the turning to the central drive shaft, you will need to make sure atleast 1 of the back wheels is off the ground or you wont be able to turn the wheel. do this on ever corner. if it all turns free and smooth, then the issue is elsewhere. thinking back, ive had simillar from a loose brake pad allowing the disc to move around on the dog cup more than it should which caused the disc to keep snagging the pad it doesn't turn very smoothly it's smooth and free and them quit hard to turn with the back and front wheels Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 i've striped the diffs a few times and they seem ok i'll check every thing else you mentioned though cheers 1 Quote Link to comment Share on other sites More sharing options...
NITRO NUT Posted June 14, 2013 Author Share Posted June 14, 2013 there is nothing wrong with your engine. thats deffinately a snagging driveline. due to the fact that the wheels all do it at the same time, its deffinately not a particular corner causing the issue. so i would check the central drive shafts are not bent and fouling the chassis and the make sure the brake is not too loose or too tight and make sure the disc aint warped. also make sure there is no dirt or stones in the spur mesh. if all is ok there, you might need to strip the diffs cheers mate took the drive line apart and put it back together and it works great now. thanks 1 Quote Link to comment Share on other sites More sharing options...
HATZY Posted June 14, 2013 Share Posted June 14, 2013 cheers mate took the drive line apart and put it back together and it works great now. thanks sweet glad its sorted now go break it again lol 1 Quote Link to comment Share on other sites More sharing options...
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