plastic/metal/gears.

[mt 1]

hi,
  can you replace the plastic gears on a heng long gearbox with metal gears,if so who makes them or is it better to just buy metal gearboxs :-\

[BREL]

MT 1 you can replace the plastic gears with metal ones I did that to my HL pershing and I got them from here http://www.rctank.de/

[mt 1]

cheers BREL,
                does that mean the heng long gears are all the same,on the long and short drive shaft gearboxs.

[BREL]

as far as I know they are all the same ratio, it is the drive sprockets that vary from tank to tank that actually make the difference in speed

[fv432]

hi mt1
yes the ratios are the same and if you buy a metal set for the tiger (shorter shaft) then you can replace the gears  with the longer shaft for the pershing/bulldog

the gear on the shaft can be carefully taken off and replaced with the metal gears

[mt 1]

Thank you fv432,
                       Interchangeability (had a few tinnies)hope it spelled right,thanks for your reply will be changing a few gears around shortly.

[BREL]

I found that when I changed the gears on the drive shaft I had to glue them on with epoxy resin because they were slightly larger then the shafts, I also drill a hole though the collar on the gear and through the shaft to pin them with an M3 screw to give a belt and braces approach to stop the gear slipping if the epoxy resin failed at any time

[mt 1]

I have found out that there are two different diameter drive shafts for the heng long gearboxs,7.99mm and 8.08mm this may account for the loose gear fit ? 

[BREL]

now why did they do that make a set of tanks and use to different diameter drive shafts, mind you heng long are not very consistent with their build quality as wel even though they are getting better

[mt 1]

Post man came today with my new metal gearboxs,and guess what, left gearbox 7.99mm right gearbox 8.08mm,left drive shaft like a p---k in a shirt sleeve,and right gearbox just spot on. >:( >:( >:(