mato 4;1gearbox ,fitting upgrade motors

[brat67]

hi evry one,been a while sorting heng long tiger .moved switch too rear panel,fan on board idler track adjusters other bits and pieces.
i could do with a little help info ,ifitted mato 4;1 gearboxes ordered graupner speed 400s.waited with anticipation out of stock never mind got them in the end only btoo find they will not fit in hull help,no room to solder wires motors touch.any info help greatly appreciated t hks..

[fv432]

got any pics of the gearboxes?

[brat67]

sorry i havent,same as forgebears .

[Saxondog]

I don't have the 4:1 but the 3:1 Asiatam gearbox,my speed 400 Graupner motors are a tight fit but they fit,their spaced out 1.5mm for pinion gear clearance.if touching the gearbox frame is an issue you could use a cardboard divider to keep the motor from shorting on the frame,perhaps this will help.Sax

[brat67]

THANKS i will give it atry let u know how i get on ,,

[971wright]

Hi Speed 400 motors are the same size as the heng long motors (480 motors are longer) ,which are a lttle tight on some models even in standard fitting (panzer3) ,when I change them and they are close together I put a little shrink wrap on the wire before soldering the wire on then I slide is over the conection (you can also bend the tabs over to help give more clearance)but I dont shrink it just in case I need to change the motor.It gives it protection aganist shorting .


regards pete

[brat67]

thanks for all help i tried too fit ,even bending tabs right back the only way i can see them fittingis too take 2-2.5mm of the pinion gear but even then the output shafts would b sticking too far out to linr up drive sprockets thanks once again...

[brat67]

thanks for all help i tried too fit ,even bending tabs right back the only way i can see them fittingis too take 2-2.5mm of the pinion gear but even then the output shafts would b sticking too far out to linr up drive sprockets thanks once again...i have just realised i may b confusing members.i have the highgrade gearboxes from forgebear,thes r fitted with 380 motors,the graupner speed 400 s r quite a bit bigger.