Ask Xulfiqar - An Automotive Encyclopedia

[axe.effect]

raise car on jack - check for cupping on tires

check wheel spindle with stethescope for noise

@syncview
Please help me. I googled wheel spindle and got a little confused.

wheel spindle is wheel hub?.

Or its the outer cvj part that fits into hub and a pin and spindle flange is used on it to lock axles?.

Updated.
In this picture, wheel will fit on right or left side of brake discs?. I think wheel fits on left side.

[raftechs901]

@xulfiqar bhai which is better 1G-FE with distributor or with vvti???

Where is @xulfiqar Bhai

[S.Kashif.Iqbal.Shah]

Where is @xulfiqar Bhai

Here is the link to your question.

https://www.pakwheels.com/forums/engine-transmission-powertrain/164987-1g-3s-consumption

[Xulfiqar]

@syncview
Please help me. I googled wheel spindle and got a little confused.

wheel spindle is wheel hub?.

Or its the outer cvj part that fits into hub and a pin and spindle flange is used on it to lock axles?.

Updated.
In this picture, wheel will fit on right or left side of brake discs?. I think wheel fits on left side.

In usual terms - spindle is also called knuckle - aka hub carrier, in any case, the hub carrier is the part the hub tightens to - which according to the picture is the bearing support and because its bolted to the trailing arm in the picture, you can put the stehtescope there.

[AABBDDuullaahh]

Aoa. I have a belta 1.0 1kr-fe CVT transmission 2011 model. The car at the time of import had clocked 17k km. And now is 35k
1) The problem is, during deceleration(with brake and accelerator not pressed), the car brakes real hard between 25~15 km/h just as if the brake pedal has been pressed. And as soon the speed drops below ~15km/h the transmission unlocks, and the car decelerates normally and smooth.
2) The car transmission fells like it slipps, when acceleration around 2000~2500rpms. Under slow or very hard acceleration its perfectly fine. Jerks a little under the mentioned rpms range but normalises after about 40~50 km/h.
3) And now sometimes there is a metallic (kirr kirr) kind of sound around 40~45km/h. that comes only at a specific accelerator position and load conditions, and feels as if the transmission slips and the car looses some power. @xulfiqar bhai would really like to have your opinion on it. What could be the problem and any solutions for it?

[usman_arooq2]

Aoa. I have a belta 1.0 1kr-fe CVT transmission 2011 model. The car at the time of import had clocked 17k km. And now is 35k
1) The problem is, during deceleration(with brake and accelerator not pressed), the car brakes real hard between 25~15 km/h just as if the brake pedal has been pressed. And as soon the speed drops below ~15km/h the transmission unlocks, and the car decelerates normally and smooth.
2) The car transmission fells like it slipps, when acceleration around 2000~2500rpms. Under slow or very hard acceleration its perfectly fine. Jerks a little under the mentioned rpms range but normalises after about 40~50 km/h.
3) And now sometimes there is a metallic (kirr kirr) kind of sound around 40~45km/h. that comes only at a specific accelerator position and load conditions, and feels as if the transmission slips and the car looses some power. @Xulfiqar bhai would really like to have your opinion on it. What could be the problem and any solutions for it?

1. @xulfiqar bhai can tell better.
2. thats ecu controlling the cvt to keep it in economical range.
3. try using high octane or replacing o2 sensor.

[AABBDDuullaahh]

1. @Xulfiqar bhai can tell better.
2. thats ecu controlling the cvt to keep it in economical range.
3. try using high octane or replacing o2 sensor.

for the 3rd i've tried high octane, the sounds seems to be coming from the transmission. Not the engine knocking issue.

[usman_arooq2]

for the 3rd i've tried high octane, the sounds seems to be coming from the transmission. Not the engine knocking issue.

have u changed its cvt fluid? could be a meter reversed ride.

[AABBDDuullaahh]

have u changed its cvt fluid? could be a meter reversed ride.

Yep changed.
And later confirmed the auction sheet as well. It's got original mileage.though is a 3.5 grade.

[ajall]

Aoa. I also ride Belta. As far as 1. It's normal with all beltas

[wasim625]

@xulfiqar

Salam bhai,

Shell Hx5 10w-40 Vs Havoline 10w-40 Vs Zic A 10w-40

How will you place them in order from best performance to least performance.

(I am planning to use one of them in a Hyundai Santro)

[S.Kashif.Iqbal.Shah]

Aoa. I also ride Belta. As far as 1. It's normal with all beltas

It's not normal for CVT transmission to be jerky. I drive a CVT Honda for 5 years now. Recently, changed the valve body from Honda because of the fluctuating RPM resulting in a jerky ride. Drives perfectly normal now.

[ajall]

I mean to say that engine braking at low Rpm is normal.

[Xulfiqar]

the brake and release is the torque converter clutch unlocking in your toyota CVT,

please tell if your car has working airbags in it?

[ajall]

Sir, Xulfiqar, my Belta also feels engine braking at low Rpm. What is the relation of working airbags with it? Your opinion is highly appreciated.

[AABBDDuullaahh]

the brake and release is the torque converter clutch unlocking in your toyota CVT,

please tell if your car has working airbags in it?

Yes it has airbags. And according my limited knowledge they are in working condition. The srs light functions normally+ the car hasn't had any accidents

[Xulfiqar]

great. The SRS unit is critical to correct functioning of the CVT.

get the zero point calibration done on your car and dont disconnect the battery often for "reset" - its messes it up sometimes.

The zero point calibration in very simple words is the transmission acceleration and deceleration input (same sensor like your phone has). If its not correctly calibrated it will mess up the variator apply.

Some points before doing the zero point (I like to call it G sensor calibration - because it makes better sense)

make sure the car is parked perfectly level (not on a slope, or sideways etc etc) - stereo is off, no one is getting in and out of the car, (car should not move in any plane).

[aadnanzia]

great. The SRS unit is critical to correct functioning of the CVT.

get the zero point calibration done on your car and dont disconnect the battery often for "reset" - its messes it up sometimes.

The zero point calibration in very simple words is the transmission acceleration and deceleration input (same sensor like your phone has). If its not correctly calibrated it will mess up the variator apply.

Some points before doing the zero point (I like to call it G sensor calibration - because it makes better sense)

make sure the car is parked perfectly level (not on a slope, or sideways etc etc) - stereo is off, no one is getting in and out of the car, (car should not move in any plane).

And is it done with the diagnostic system or with the help of some other tool?

[Xulfiqar]

Its done with a good and comprehensive 2 way scan tool - not a code reader.

[hj2006]

Kindly check the specs of this TRD performance Exhaust as shown in the picture and tell me what benefits will this bring to my corolla. Is it 100% compatible with local manufactured corolla or will need alteration ?