Wobbly center shaft....

[KyoshoK]

Hi

i have a problem with the center shaft being a little too wobbly for my liking... wobbles for like 3mm and touches the servo ears.

i have put about 1mm fuel tube (o-ring) on either end of the shaft to keep it snug and cushioned.

i thought my centre shaft may of been bent so i changed the shaft to new one. also have changed the large bearing on the spur.

i have a center one way and front diff setup.

it looks like the play is coming from the centre one way. it wobbles a bit too much

any ideas?

[omen1975]

Hey,

Check that your front diff pinion is sitting correctly on the shaft, if it is then its most likely a worn one way or worn diff pinion bearings.

hope this helps,
omen1975

[pro4nut]

I agree, dodgy one way bearing, or my other favourite bent rear layshaft.

Take the whole transmission apart.

If you roll the rear layshaft on a true surface you will see if it is bent same should be done with the front shaft as well

[foolio]

Also check the front drive bevel shaft (LA-202). A guy on rctech.net bent his somehow after a particularly hard nose landing and he had the same symptoms you had. Swapped it out and all was good.

[KyoshoK]

thanks for the suggestions i'll check it out

[KyoshoK]

stock up on a few la202's they are made of aluminium and are real weak... and real hard to diagnose they are bent. roll it on a flat table and its still straight.

should of been made out of steel like the rear one is.

when it wobbles, makes your car handle like crap especially with a center one way, will make the car spin out half way thru a corner, off power.