Hekyl
2010.01.06, 12:36 PM
My current diff setup:
PN Ultra Light Weight Aluminum shaft 1.29 grams
QteQ Ultra Light Weight differential housing w/ left hub and wheel nut
Reflex Racing Light Weight 8mm Diff Rings low weight
Reflex Racing 64 Pitch Machined Delrin 2WD Spur - 51T
Reflex Racing 3/32 Ceramic Diff Balls
PN thrust bearings
My problem is after sanding down plates and diff housing (recommended by the forums/sites on diff tuning) 2 odd problems exist.
1- The spur gear wobbles but straightens out when applying power to motor.
2- Visibly during certain points of diff rotation 1 differential ball doesn't seem to touch the diff ring.
As I mentioned I've sanded down the plates (diff rings have the rounded edge side pointed outward towards the wheels). I am led to believe it isn't completely flat as I can see 1 ball not touching. It's worth mentioning that the grooves made from the ceramic balls after a race have made a complete circle that seems consistent throughout. No pitting is evident. All parts were bought new and diff action seems relatively smooth.
I am stumped as I LOVE this low weight setup. Am I doing something wrong here or did I get defective parts?
I am thinking of going to a heavier setup if this problem isn't resolved.
Kyosho diff rings or PN Ultra polish
PN Limited Slip 64 pitch spur
PN Ultra Light Weight Aluminum shaft 1.29 grams
QteQ Ultra Light Weight differential housing w/ left hub and wheel nut
Reflex Racing Light Weight 8mm Diff Rings low weight
Reflex Racing 64 Pitch Machined Delrin 2WD Spur - 51T
Reflex Racing 3/32 Ceramic Diff Balls
PN thrust bearings
My problem is after sanding down plates and diff housing (recommended by the forums/sites on diff tuning) 2 odd problems exist.
1- The spur gear wobbles but straightens out when applying power to motor.
2- Visibly during certain points of diff rotation 1 differential ball doesn't seem to touch the diff ring.
As I mentioned I've sanded down the plates (diff rings have the rounded edge side pointed outward towards the wheels). I am led to believe it isn't completely flat as I can see 1 ball not touching. It's worth mentioning that the grooves made from the ceramic balls after a race have made a complete circle that seems consistent throughout. No pitting is evident. All parts were bought new and diff action seems relatively smooth.
I am stumped as I LOVE this low weight setup. Am I doing something wrong here or did I get defective parts?
I am thinking of going to a heavier setup if this problem isn't resolved.
Kyosho diff rings or PN Ultra polish
PN Limited Slip 64 pitch spur