Tamiya F103 Forum
#1141
Tech Champion
iTrader: (22)
I agree....I ordered a new soft T-plate....I took most the whole car apart this morning including the front springs....Everything looks nice and even, but all be darn if I can't get it to go straight. If I just tap the throttle it spins left, and opposite for braking. I even tried messing with some weights on both sides just to see if I was off, and no change......I am starting to think, or hope that even thought the T-bar looks flat on a flat surface, it may be stressed under acceleration and decelerration......Hopefully I will figure this out....thanks for your help so far....
#1142
Tech Champion
I agree....I ordered a new soft T-plate....I took most the whole car apart this morning including the front springs....Everything looks nice and even, but all be darn if I can't get it to go straight. If I just tap the throttle it spins left, and opposite for braking. I even tried messing with some weights on both sides just to see if I was off, and no change......I am starting to think, or hope that even thought the T-bar looks flat on a flat surface, it may be stressed under acceleration and decelerration......Hopefully I will figure this out....thanks for your help so far....
Also check your thrust bearing assembly to make sure it is working properly. The car does strange things sometimes when the spring washers weaken.
#1143
Tech Master
iTrader: (4)
Join Date: Mar 2009
Location: Tween a Rock & a Hard Place in Pa.
Posts: 1,279
Trader Rating: 4 (100%+)
I have to agree- prob something in the axle/diff area,or pod isn't square with chassis.
#1145
Tech Champion
Yeah that will actually cause problems. I used to do the same thing and kept wondering why I could never get my car to track straight.
#1146
i was shown a very quick and easy way of checking for tweek on pan cars and F1's
i use the Quarter trick
place 2 quarter coins on the front wheels just off the top top point of the tyres , hen find the middle point of the cars nose and lift slowly with a 1.5mm Allen key till the coins fall ,
if they both fall at the same time the car isnt tweeked , if one falls before the other you have tweek
this is quick to check maybe the 1st thing to check
i use the Quarter trick
place 2 quarter coins on the front wheels just off the top top point of the tyres , hen find the middle point of the cars nose and lift slowly with a 1.5mm Allen key till the coins fall ,
if they both fall at the same time the car isnt tweeked , if one falls before the other you have tweek
this is quick to check maybe the 1st thing to check
#1147
Tech Apprentice
i was shown a very quick and easy way of checking for tweek on pan cars and F1's
i use the Quarter trick
place 2 quarter coins on the front wheels just off the top top point of the tyres , hen find the middle point of the cars nose and lift slowly with a 1.5mm Allen key till the coins fall ,
if they both fall at the same time the car isnt tweeked , if one falls before the other you have tweek
this is quick to check maybe the 1st thing to check
i use the Quarter trick
place 2 quarter coins on the front wheels just off the top top point of the tyres , hen find the middle point of the cars nose and lift slowly with a 1.5mm Allen key till the coins fall ,
if they both fall at the same time the car isnt tweeked , if one falls before the other you have tweek
this is quick to check maybe the 1st thing to check
#1148
I had some luck un-tweaking my 103 by doing the old top plate hold and turn.
Pop the wheels off,loosen the top deck nuts/screws, and have a bud hold the chassis on a FLAT surface while tightening the nuts.
Also check the "squarness" of the rear pod cage. I usually will take off the t-bar and do the steps above to the motor pod.
Don't count out front springs either. I had a real bad hooking problem and it turned out to be a bad front spring. I switched EVERYTHING on the car but the front springs (they "looked" good) and could not make it go away.A bud was watching my touring car hook during practice and suggested I try a stiffer front setup (thanks Mr.Cali).. So the bell went off in my head... put in a set of stiffer springs and the f1 car was hooked up .
Pop the wheels off,loosen the top deck nuts/screws, and have a bud hold the chassis on a FLAT surface while tightening the nuts.
Also check the "squarness" of the rear pod cage. I usually will take off the t-bar and do the steps above to the motor pod.
Don't count out front springs either. I had a real bad hooking problem and it turned out to be a bad front spring. I switched EVERYTHING on the car but the front springs (they "looked" good) and could not make it go away.A bud was watching my touring car hook during practice and suggested I try a stiffer front setup (thanks Mr.Cali).. So the bell went off in my head... put in a set of stiffer springs and the f1 car was hooked up .
#1149
Tech Apprentice
Thanks jd, I had forgetten about that method to line things up.
#1150
Tech Master
iTrader: (4)
Join Date: Mar 2009
Location: Tween a Rock & a Hard Place in Pa.
Posts: 1,279
Trader Rating: 4 (100%+)
i was shown a very quick and easy way of checking for tweek on pan cars and F1's
i use the Quarter trick
place 2 quarter coins on the front wheels just off the top top point of the tyres , hen find the middle point of the cars nose and lift slowly with a 1.5mm Allen key till the coins fall ,
if they both fall at the same time the car isnt tweeked , if one falls before the other you have tweek
this is quick to check maybe the 1st thing to check
i use the Quarter trick
place 2 quarter coins on the front wheels just off the top top point of the tyres , hen find the middle point of the cars nose and lift slowly with a 1.5mm Allen key till the coins fall ,
if they both fall at the same time the car isnt tweeked , if one falls before the other you have tweek
this is quick to check maybe the 1st thing to check
hell I'm even cheaper- I use pennies
#1151
Wolf f-1?
Looks like they're re releasing this car, presumably on an f103 chassis.
1/10 R/C Wolf WR1 (Limited Edition) (Tentative)
I'd like to see the Lotus 79, Williams Fw07 or Brabham Bt50 re-released for the f103 too!
1/10 R/C Wolf WR1 (Limited Edition) (Tentative)
I'd like to see the Lotus 79, Williams Fw07 or Brabham Bt50 re-released for the f103 too!