Replacing the spur gear

[littlened]

Firstly, this is an expensive hobby.

I've just had the lazer and some cones out, and somehow managed to get a stone between the pinion and spur, the pinion is fine but the spur now has a damaged tooth which produces a very unhealthy roar.

So, I need to buy a new spur. 10 minutes practicing has just cost me £5!

First time I had the car out I broke one of the standard shocks, they were crap anyway. Second time I took the car out(racing) I broke something on the front that holds the pins in and had to replace it with an alloy one. Now I've damaged a pinion. I've only had the car out three times!

Now I have to order a spur, I'm wondering what the difference between the RTR spur (la206-78) and the SP spur(la206-18) is ?

[mattb]

does the rtr model have an ajustable slipper ?? ive never seen an rtr up close!

[littlened]

Looking at the exploded view for both the SP and the RTR they both have exactly the same parts around the spur apart from the spur and a baring. So I would say yes., it has an adjustable slipper.

There's a nut holding the spur on with a spring behind it, which I'm assuming controls the slippage.

Am I on the right lines?

[mattb]

i think youve got part numbers mixed up there mate i can only find a la206-76 or la206-78 the last numbers represent the number of teeth on the spur you wont be able to get an 18t one itd be way to small.both would fit your car it depends on what gearing youd want.

[littlened]

Originally Posted by mattb

i think youve got part numbers mixed up there mate i can only find a la206-76 or la206-78 the last numbers represent the number of teeth on the spur you wont be able to get an 18t one itd be way to small.

ah its the printout, the 7 looks like a 1, but when I've opened the PDF at 200% you can see it's meant to be a 7.

My stupid fault...thanks

[mattb]

so if you get the 76t it would make your car higher geared than the 78t one.

[littlened]

Originally Posted by mattb

so if you get the 76t it would make your car higher geared than the 78t one.

I'm just getting the same as the one that was on, as well as some diff grease for when I change the shafts and a set of yellow springs.

Hopefully the undertray I've ordered will help stop the crap getting into the car in future.