Fireblade
Well-known member
Bit of a waffle this, be prepared...
I did Saturday. Second run with a new Max8 motor in the Kagama since the old one imploded after 2 years.
A pack and a half in lost traction to the addition of a nasty sounding clicky noise. Diff gone I think, which is unusual because in 5 years of running Corally 6S buggies/trucks I've never had a single issue with diffs.
Anyway, I get it home and start taking bits off to find the problem, I see the pinion has slipped backwards inside the motor mount completely hiding the damn grub screw. No amount of gently prying/not so gently prying will move it enough to get a hex key in there. Pinion puller! Yeah that will do it. Snap one of the motor mount bolts getting it off which was really good. Discover I can now get the grub screw out, apply a bit of heat and it comes out easy. Pinion will still not move. Pinion is almost touching the motor, I need 1mm more to allow the puller to slide in behind it. I get a punch and gently tap tap tap the motor shaft back out, I get that magic millimeter and get the pulled in there. I get the pinion to move 5mm before the puller decides fiddlestick this and breaks. I get a beefier gear puller and try that, I get another few mm until the conical end of the pull is up against the pinion. I go to plan Z and cut the pinion off. Result! After a long long time it's off! I feel a bit pleased with myself.
The I notice my tap tap tapping shunted the sensor board backwards and it's torn all 3 tiny screws out.
I had to get the gin out at that point and walk away.
I did Saturday. Second run with a new Max8 motor in the Kagama since the old one imploded after 2 years.
A pack and a half in lost traction to the addition of a nasty sounding clicky noise. Diff gone I think, which is unusual because in 5 years of running Corally 6S buggies/trucks I've never had a single issue with diffs.
Anyway, I get it home and start taking bits off to find the problem, I see the pinion has slipped backwards inside the motor mount completely hiding the damn grub screw. No amount of gently prying/not so gently prying will move it enough to get a hex key in there. Pinion puller! Yeah that will do it. Snap one of the motor mount bolts getting it off which was really good. Discover I can now get the grub screw out, apply a bit of heat and it comes out easy. Pinion will still not move. Pinion is almost touching the motor, I need 1mm more to allow the puller to slide in behind it. I get a punch and gently tap tap tap the motor shaft back out, I get that magic millimeter and get the pulled in there. I get the pinion to move 5mm before the puller decides fiddlestick this and breaks. I get a beefier gear puller and try that, I get another few mm until the conical end of the pull is up against the pinion. I go to plan Z and cut the pinion off. Result! After a long long time it's off! I feel a bit pleased with myself.
The I notice my tap tap tapping shunted the sensor board backwards and it's torn all 3 tiny screws out.
I had to get the gin out at that point and walk away.