One rear wheel sometimes not spinning...

[kristine123]

Hello to all, Good day sa lahat,

Car: Innova G A/T 2005
(Differential Oil napalitan na last Aug 2010 checked ok naman po oil nya malinis)

Tanong ko lang sana kung normal po ba ang isang left rear wheel di umiikot during lift. (started then D from P) pero umiikot naman pag lakasan mo ng rev pero di kasin bilis ng right rear wheel... pansin ko ito nong nagpalit ako ng ATF sa casa. Sabi ng mechanic normal daw iikot naman po pag nasa daan na.

Pansin ko kasi sometimes during driving medyo mabigat sya minsan magaan.
baka po kasi dahil sa isang wheel ko sometimes na di umiikot ng maayos kaya medyo nabibigatan.(baka akala ng AT na fully loaded ako kaya di sya mag shift agad sa 2nd sometimes, aantayin nya pa ang 1500rev/m saka mag changed).


Normal po ba ito?

TIA

[niky]

The Innova has an open differential. When both wheels are in the air, the tendency is for one to spin faster than the other, or for one wheel to not spin at all. This is because the differential does not apportion power to both wheels evenly.

It's only abnormal if, when the car is not in gear, it's harder to turn the same wheel by hand... then that could possibly mean a stuck brake. Otherwise, no biggie.

[kristine123]

The Innova has an open differential. When both wheels are in the air, the tendency is for one to spin faster than the other, or for one wheel to not spin at all. This is because the differential does not apportion power to both wheels evenly.

It's only abnormal if, when the car is not in gear, it's harder to turn the same wheel by hand... then that could possibly mean a stuck brake. Otherwise, no biggie.

thanks for the quick reply sir niky...

[kkreuk18]

Isa lang naman talaga ang driving axle, usually un right. Kaya di umiikot un left. Gumagana lang un left kapag magppivot un right axle(sa curve). Different case naman sa LSD(limited slip) sabay gumagana un L+R axles kaya usually un mga pang off road ang meron nito.
Mahirap icontrol ang auto kung parehong kakamot un gulong mo lalo na sa pagliko, kaya kailangan nakaLSD.

[kristine123]

Isa lang naman talaga ang driving axle, usually un right. Kaya di umiikot un left. Gumagana lang un left kapag magppivot un right axle(sa curve). Different case naman sa LSD(limited slip) sabay gumagana un L+R axles kaya usually un mga pang off road ang meron nito.
Mahirap icontrol ang auto kung parehong kakamot un gulong mo lalo na sa pagliko, kaya kailangan nakaLSD.

thanks kkreuk18...

at last naintindihan ko na ang differential natin....

thanks sa lahat sa nag reply.

[SiRbossR]

Your innova's diff doesn't have LSD so in effect, you only spin one wheel in throttle.

...differential allows the rotational speed of your ride’s inner and outer drive axles to differ as needed to go around corners. However, when it is subjected to hard acceleration, only one wheel starts to spin, and there will be no torque delivered to the non-spinning axle, hence the single tire mark you got on the road during your last burnout. Now if you want to maximize your power-to-pavement effectiveness, your diff will need a limited slip differential (LSD). Depending on the make, a limited slip differential can either be composed of small multi-plate clutches, planetary gears, or the viscous type that is made up of fluids, but is said to be less efficient than the former two. The LSD is able to transmit torque in a roughly 50-50 split between the two driving axles. So that when you execute your burnout this time, your car will now leave behind two trails of burnt rubber, and if your car has to go around a corner the clutch plates or the gears disengage for a while so that the axles can turn independently with one another.

LSD Lingo

1-way LSD – The LSD comes into use once the throttle is stepped on.

1.5- way LSD – The LSD comes into use once the throttle is stepped on and when the
car is braking there is a slight LSD effect.

2-way LSD – The LSD comes into use whether the car is accelerating or braking.