gunja99 Posted August 30, 2020 Share Posted August 30, 2020 Just had a great session with the viper and mad bull around the fields. Had to stop it short though as on 2nd 3000mAh NiMah the mad bull started smoking a lot! Was the motor. Now the car been in a friend's attic for 10 years. And he bought it second hand so it's old old. Batteries new, ESC new (hobbyeong 1060l and radio new. So is the motor old/dead or... I have a couple.of spare motors so not an issue, bit does this happen with old motors? Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 30, 2020 Share Posted August 30, 2020 could of just been on its last legs, or maybe overgeared, the cheap stock motors are pretty much consumables m8 Quote Link to comment Share on other sites More sharing options...
soopahfly Posted August 30, 2020 Share Posted August 30, 2020 Are the rear wheels free turning or are they stiff? They could be old grease in the diff or it's a really tight mesh putting stress on the motor.Could be dust inside getting burnt off.Could be knackered. But a silver can 540 are pennies to replace Sent from my Pixel 2 XL using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 30, 2020 Author Share Posted August 30, 2020 Cheers guys I rebuilt the back of the car last weekend (full strip down fresh grease etc). Maybe time to get some better motors though do have 2 spare stock 540s. Think was still working and had been working hard 1 Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 30, 2020 Author Share Posted August 30, 2020 Well it still working. What's a good brushed motor replacement anyways for the 1/10 tamiyas rwd. Think both got 19t pinions on and can take 17. What does that do btw? Which speed and which torque? Both cars got 1060 brushed ESCs in Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 30, 2020 Share Posted August 30, 2020 (edited) 1 hour ago, gunja99 said: Well it still working. What's a good brushed motor replacement anyways for the 1/10 tamiyas rwd. Think both got 19t pinions on and can take 17. What does that do btw? Which speed and which torque? Both cars got 1060 brushed ESCs in higher the tooth count higher gearing bigger gear = faster speed but less acceleration and more strain on motor just like our bikes edit: i have used one of these in the viper with stock 17 tooth pinion https://www.motorsandrotors.co/index.php?main_page=product_info&products_id=5378 just remember that is a nice speed upgrade but also more heat especially with the big lipos you have in it now, the motor is also rebuildable stock motor is 27 turns. edit: https://www.modelsport.co.uk/electric-motors/rc-car-categories/9920/992015&MSAttributeID[25]=575&MSAttributeID[27]=1080 https://www.modelsport.co.uk/smd-power-tuned-brushed-modified-motor-27-turn/rc-car-products/428009 that one looks decent for the money and same number of turns as the stock one, also rebuildable Edited August 30, 2020 by Yrkoon Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 30, 2020 Author Share Posted August 30, 2020 36 minutes ago, Yrkoon said: higher the tooth count higher gearing bigger gear = faster speed but less acceleration and more strain on motor just like our bikes Me bike is cheap and new to that and not looked at ratios yet. Though the motor on my bike is a beast. It run everyday for 150 days on the trot now 🤣🤣🤣 5k minimum. Actually had a good ride today, only 40 miles, but followed it with a 10 mile run! Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 30, 2020 Share Posted August 30, 2020 1 minute ago, gunja99 said: Me bike is cheap and new to that and not looked at ratios yet. Though the motor on my bike is a beast. It run everyday for 150 days on the trot now 🤣🤣🤣 5k minimum. Actually had a good ride today, only 40 miles, but followed it with a 10 mile run! hehe awesome not been on my bikes in a while, if your having probs with the motors overheating try the 17 tooth pinions, they wont go as fast but will be quicker of the mark with less strain on the motors dang 40 miles and a 10 mile run, i would be total wrecked after just the 40 miles Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 30, 2020 Author Share Posted August 30, 2020 So should get a 17t pinion for these faster motors? Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 30, 2020 Author Share Posted August 30, 2020 1 minute ago, Yrkoon said: hehe awesome not been on my bikes in a while, if your having probs with the motors overheating try the 17 tooth pinions, they wont go as fast but will be quicker of the mark with less strain on the motors dang 40 miles and a 10 mile run, i would be total wrecked after just the 40 miles Hah got me road bike on 20th June (so started cycling then) I've already done Beeston castle, cat and fiddle (up to Buxton) a fee 60 milers and 2 80 milers. As I say the motor on my bike good, me bike.... Well it'll do till next season hah 1 Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 30, 2020 Author Share Posted August 30, 2020 And get on your bike. Lovely weekend of weather 1 Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 30, 2020 Share Posted August 30, 2020 yeh m8 lower the pinion to 17 and it still gets hot but will be a lot cooler than a 19 tooth i have never used higher than the 17 tooth one before on the viper. https://www.modelsport.co.uk/rw-32-dp-pinion-17-teeth/rc-car-products/13777 it looks a lot different than the pic decent pinions last month i was on my bikes but this month had a lung or something infection yay anti biotics, getting out of breath doing basic stuff lol gonna stop vaping soon that is some immpressive cycling, what road bike u got? Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 31, 2020 Author Share Posted August 31, 2020 A btwin 500se I think it is. Was 150 2nd hand but had only done 350 miles and excellent condition. Do love it though Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted August 31, 2020 Share Posted August 31, 2020 58 minutes ago, gunja99 said: A btwin 500se I think it is. Was 150 2nd hand but had only done 350 miles and excellent condition. Do love it though Ah i have a triban 500se as well lol Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 31, 2020 Author Share Posted August 31, 2020 5 hours ago, Yrkoon said: Ah i have a triban 500se as well lol Oh just like this?! Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 31, 2020 Author Share Posted August 31, 2020 SO we both have B-Twins and Sand Vipers.... Eeek 1 Quote Link to comment Share on other sites More sharing options...
Stormbringer Posted August 31, 2020 Share Posted August 31, 2020 Yep his bike is just like that lol I have the red Triban 500 i dont have a Sand Viper tho 1 1 Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 31, 2020 Author Share Posted August 31, 2020 23 hours ago, Yrkoon said: higher the tooth count higher gearing bigger gear = faster speed but less acceleration and more strain on motor just like our bikes edit: i have used one of these in the viper with stock 17 tooth pinion https://www.motorsandrotors.co/index.php?main_page=product_info&products_id=5378 just remember that is a nice speed upgrade but also more heat especially with the big lipos you have in it now, the motor is also rebuildable stock motor is 27 turns. edit: https://www.modelsport.co.uk/electric-motors/rc-car-categories/9920/992015&MSAttributeID[25]=575&MSAttributeID[27]=1080 https://www.modelsport.co.uk/smd-power-tuned-brushed-modified-motor-27-turn/rc-car-products/428009 that one looks decent for the money and same number of turns as the stock one, also rebuildable Just looking at these motors. You rebuild, and... What does the fewer turns do to the performance, affect it etc? Miht be time to google and look into this. Also slightly annoyed the Lipo I got doesn't fit the mad bull. Got a boxy one (dremel'd the SV to fit it), but not an option on the mad bull, so time to order some more batteries, and maybe a couple of motors to try. The NiMah used in the Mad Bull just don't seem to last as long as in the SV, and boy it gets hot hot, just have to assume that the motor is old and useless. Might swap the motors over and see. Had a few great sessions today used around 25,000 mAh in total Quote Link to comment Share on other sites More sharing options...
Stormbringer Posted August 31, 2020 Share Posted August 31, 2020 (edited) lower the turns the faster it goes also uses more power 🍻 the motor may not be on way out it could just be overgeared i guess you can try a new motor but if it gets hot hot like old 1 lower the gearing Edited August 31, 2020 by Stormbringer 1 Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 31, 2020 Author Share Posted August 31, 2020 6 minutes ago, Stormbringer said: lower the turns the faster it goes also uses more power 🍻 the motor may not be on way out it could just be overgeared i guess you can try a new motor but if it gets hot hot like old 1 lower the gearing I have 2 of the stock motors spare, so will try one of them or stick the tamiya torque one from the viper into the MB. So switching to the 17T pinion will be easier on the motor, got it WIll order some 17T pinions, and probably some spare 19's too, as will probably need em! That motor is probably 15+ years old now, sooo... 2 Quote Link to comment Share on other sites More sharing options...
gunja99 Posted August 31, 2020 Author Share Posted August 31, 2020 Oh seems stock for both is 17T pinions, so can't lower that. Assume I've only got the choice of 17 or 19, as the holes for the motor only allows that Quote Link to comment Share on other sites More sharing options...
Stormbringer Posted August 31, 2020 Share Posted August 31, 2020 ok then try a new motor see if that helps mate 🍻 1 Quote Link to comment Share on other sites More sharing options...
Yrkoon Posted September 2, 2020 Share Posted September 2, 2020 On 31/08/2020 at 21:08, gunja99 said: SO we both have B-Twins and Sand Vipers.... Eeek snap 1 Quote Link to comment Share on other sites More sharing options...
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