540 motor pinion for Grasshopper

[Tamiya_addict]

I'm exchanging the 380 motor in my re-re Grasshopper for a 540. The manual calls for an 18T pinion. So I ordered 50355 "18T, 19T AV pinion gear set". When I went to fit the new pinion and 540 motor, the pinion PCD is too small, where the pinion teeth don't even tough the spur gear teeth. Is there a larger PCD 18T Tamiya pinion I should be using? What would the part number be? Thanks.

[T.C~Tamiya]

Item number: 3515006 -- 18T Pinion for Frog Hornet Grasshopper Lunchbox Pumpkin

[Tamiya_addict]

Thanks!!!!! Looks like I'll have to buy it as a spare part through my LHS, and not from the bay. Cheers.

[europro975]

Here's the Pinion set you need:

http://cgi.ebay.co.uk/Vintage-Tamiya-50192...VQQcmdZViewItem

[rhenbelz]

In case you're wondering about why the set you have didn't work, you probably got a 48 pitch set. The Grasshopper's gears are 32 pitch.

[necronomicon]

I feel for you there, Tamiya addict, i did the same thing!-  18T AV pinion gears no good for grasshopper!, on the bright side, your grasshopper will fly when you fit the proper 18T pinion into it!- oil shocks at the rear will also help with the rather unpredictable handling!

cheers

Neil