Why is my cr so loud?
 

For some reason my cr is really really loud i thought it was my motor as its as noisy in my xx4 but someone said omethign about pinion would there be any reason why this would make so much noise i havea kevlar spur on both cars and i use rw racing pinions Any ideas????

A

Try a standard spur to eliminate that.

don't run Losi...... sorry, is that not helpful?

LOL :D

I 2nd that ^

Though billed as the better spur, most of the team drivers ran the plastic ones I found out from Cree when we were running XXX4's. Th kevlar is is defo louder.

it is because it is a hard material, which although may last longer, generates far more noise.

lets get a std spur on there then.

A

thanks btw where are my manners.

Had the same problem on my xxx4, it had a kevlar spur and was really noisy. Changed it to a plastic one and it was fine.

Ryan

ash are you using an orion brushshless cus my losi sounded shite with that type of motor but the sound dissapered when i put the lrp in nowt wrong with the motor just noisy;)

Yea i knew the motors where noisy but not this noisy.

A

The kevlar spurgears make way more noice then plastic.
Also check how the gears look in the gear box.
When they go bad it becomes loud as hell.

well i hope thy aint gone bad its all of a week old.

A

Cant say i have any problems with either spur gears on either of my cars..... How old are you pinions? They do actually wear out, also like someone mentioned, when was the last time you checked the layshaft and Idle gear? I tend to replace mine every 6 months.

Also, when you rebuild the gearbox, place a "small" amount of diff grease between the gears. Helps me.

Danny

Well i didnt really buy all my pinions in a big bulk but ive steadly bought them over a few years as and when i need them but the one ive got on now is a few years old but ive hardly used it it was for my touring car which i hardly ever used so it hasnt had much wear at all. As for layshaft and idler gear there brand new the cars only had 1 meeting and one club night. A little odd. I may try a brushed motor and a plastic spur see if that is quieter then see if that solves it.

Thanks danny and everyone :)

A

Ash have you checked that the Pinion grub screw is not slightly catching the spur? as i mentioned to you last sunday @ Kiddy .
i had that on my S4 ??
i couldnt work out why it was loud and the messing was spot on ..

nope i checked that.

A

Ash,

It might be just down to the resonant frequency?

Don't worry about it.

G