swerving while going straight

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firebird908
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Joined: 07/01/2002
swerving while going straight

Why does my mini-z swerve a very little bit even though i\'m not moving the wheel? Is it just from a slight interference getting to it and making it twitch? Or is it cause it\'s kinda sloppey up there and wheels can move a little cause they aren\'t held on that hard? Would a front stabilizer bar that they sell fix this?

Draconious
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Joined: 04/24/2002
swerving while going straight

A stab bar wont fix the slop it will just give toe in or out or do nothing... if you hold the car in your hand and give it throttle slowly and as you give it throttle the front wheels start flailing back and forth like its mad... then the motor is causing too much interferance.. you need to re-shield themotor.. with a 3rd cap or new caps etc..

firebird908
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Joined: 07/01/2002
swerving while going straight

but it\'s not the throttle, just the front wheels, they twitch i think, gas works fine

[Edited on 16/7/2002 by firebird908]

FredSambo
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Joined: 07/11/2002
swerving while going straight

that is your servo glitching.

mine does it too... i even messed with the potentiometer on the front left-hand corner of the esc... still no luck. i will let you know if new crystals are the key!

ScottM
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Joined: 07/30/2002
swerving while going straight

I saw some people putting Capacitors on the motor to stabilize the flow of energy to the motor and I read somewhere that it stops the interference... is that correct?

Draconious
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Joined: 04/24/2002
swerving while going straight

some have gotten away with spraying the pod inside the servo with electrical cleaner (wich some brands eat plastic keep away from teh chassis parts)

ScottM
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Joined: 07/30/2002
swerving while going straight

(wich some brands eat plastic keep away from teh chassis parts)

.... whaa???

Cyrabus
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Joined: 06/11/2002
swerving while going straight

I had the same problem and someone suggested I insert a piece of paper between the servo case and the potentiometer (the little circular bit at the fron of the servo). I shimmed the paper in there and presto!!! problem solved.

Oh ... and to clean the electronics some people use brake cleaner (use the weaker kind though as the industrial strength will cause the plastic parts to swell :o )

FredSambo
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Joined: 07/11/2002
swerving while going straight

okay, the paper thing worked for me!

WOOOOOOHOOOOOOOOOOOOO!

hafizrosli
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Joined: 09/12/2002
swerving while going straight

SÒ? when my car goes straight in full gas after 2-2.5 m it suddenly goes to left . why is this? is it dangerous? would it cost me money HELP!!!

Tango
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Joined: 09/25/2002
swerving while going straight

did the front wheel turn aside itself?
if yes, check servo power source & VR unit.
if not, remove all bearings & clean it.
Also, don\'t tighten too much your front wheel locknut.

hafizrosli
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Joined: 09/12/2002
swerving while going straight

Help me please!!! Should i try to scrap off old solder on the Connecter to the Antenna and resolder or what? coz ive solder 2 and the soldering is Quite too big... What should i DO!!!

hafizrosli
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Joined: 09/12/2002
swerving while going straight

And by the way. i crashed alot like more then 10 times a day

Anonymous (not verified)
swerving while going straight

Did you try the paper thing in the servo?

Also... does the problem happen when accelerating slowly up to top speed or only when giving it hard gas? If it only happens when accelerating hard it could be your ball diff adjustment.

-kai

hafizrosli
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Joined: 09/12/2002
swerving while going straight

Its full gas ... But ive tried unlocked the ball diff alot of time ... but it seems if i full gas ... i kinda can see the front wheel swerv to the side...

firebird908
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Joined: 07/01/2002
swerving while going straight

heyyyy the paper thing worked hell yea!! i just ordered new motor, turbo, diff, bearings, rims/tires so i can\'t wait to see what it will do when they come.

baseline
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Joined: 10/20/2002
swerving while going straight

even in a real car, if you punch it, your car may not go straight forward if you have lost all rear traction..

Sweden
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Joined: 10/12/2002
swerving while going straight

I think that the problem is that the tires arent on perfectly straight, so when going straight, they cause the car to swere very lightly...
Just my opinion;)

Blamminator
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Joined: 11/22/2002
swerving while going straight

Stoopid question. Anyone have pics of the \"paper trick\"????

baseline
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Joined: 10/20/2002
swerving while going straight

yes check my site

bigd
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Joined: 12/18/2002
swerving while going straight

Anyone know why the paper trick works?

baseline
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Joined: 10/20/2002
swerving while going straight

i explained it on my site....

anyway, it cuz the plastic servo casing for the steering pot is sometimes loose -- therefore giving the pot some play and that\'s why it keeps adjusting itself because it doens\'t even have a firm sense of its surroundings.

bigd
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Joined: 12/18/2002
swerving while going straight

thnxs baseline!

jamiekulhanek
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Joined: 01/14/2003
swerving while going straight

Just a thought...The diff,in the mini z is not in the centre, the left side shaft has 2 bearings. The right side has 1. Maybe its because of the extra friction, making the right wheel spin faster, and making the car go left??

jamiekulhanek
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Joined: 01/14/2003
swerving while going straight

Yeah I notice this alot when i stamp on the accelerator. It kinda spins the wheels and goes to the left a bit.

bigd
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Joined: 12/18/2002
swerving while going straight

also i find that on carpet i drift to the left. I think this is because my diff gear is grabbing the carpet and leading to slightly more grip on the left side.

I mean right side.

[Edited on 17/1/2003 by bigd]

PurpleDucky
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Joined: 08/18/2002
swerving while going straight

drifts or vears? if it drifts, even though your car is tuned well on solid surfaces, it might be the diff.

Ernon
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Joined: 11/22/2002
swerving while going straight

Quote:

i explained it on my site....

anyway, it cuz the plastic servo casing for the steering pot is sometimes loose -- therefore giving the pot some play and that\'s why it keeps adjusting itself because it doens\'t even have a firm sense of its surroundings.

Thank You for the explaination AND for your kick-ass site! Those pictures are a tremendous help. It may be that my ignorance is because I am still so new to the hobby, but I just couldn\'t picture where that paper went. On another site\'s forum they discussed it but the only help given was to \"do a search for it and you will find it\". Well guess what, a search didn\'t turn the info. I gave up until I saw your pictures. Thanks again. :D

Ernon

noobracer
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Joined: 01/16/2003
swerving while going straight

I checked the site out and i did the paper shim thing. If the ball diff is the problem in causing the car to not drive straigth what can you do to the diff? Right now i have it lock pretty solid. Should i make the ball diff a little looser?

Thanks
Noobracer

baseline
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Joined: 10/20/2002
swerving while going straight

if you want to check to see if it really is your ball diff, put in your stock diff and see if the problem persists. i would recommend that before you spend hours tuning your diff :)

noobracer
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Joined: 01/16/2003
swerving while going straight

not sure if my stock diff is going to work since i\'m using the GPM motor mount. I could be wrong though. I\'ll give it a try But if i happens that it\'s the ball diff what should i do? Is there anything i can do to fix it?

Noobracer

noobracer
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Joined: 01/16/2003
swerving while going straight

I tried it with the stock diff, it still does the same thing, not as bad, but it still curves to one side

Noobracer

Natedogg
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Joined: 01/07/2003
swerving while going straight

if your having a problem with the rear of the car spinning out when accelerating, loosen your diff until it will actually slip while you are holding both tires and accelerating with the radio at the same time, youll notice a tremendous difference in you ability to accelerate straight!!

vvviper
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Joined: 08/22/2003
Re: swerving while going straight

I'm having the same problem everyone is talking about. When I go full throttle it totally spins out.

What should I do? I just have everything stock...

rcguy
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Joined: 12/22/2003
Re: swerving while going straight

the problem with the servo can also be fixed by putting a better potentiometer in the servo. they are available at www.hobbyetc.com last time i checked. there is soldering involved,but it permanantly solves the problem. they also have delrin servo gears that are way smoother.