Ask Xulfiqar - An Automotive Encyclopedia

[Salman922]

@xulfiqar bhai my car (03, cow 2C) had its clutch working very very low near to it's floor, like i had to pull mat so that nothing is in between clutch and floor and press it full damn hard to engage gear, I asked mechanic to lift it a bit and after adjusting it slightly up now it's clutch plates r acting as weak... Problem occurred exactly after the clutch adjustment. What could be the reason ?

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Bump @xulfiqar bhai.

One more thing, after changing the radiator cap cooling system has just mild pressure as compared to before, every other thing is working alright. Low pressure is normal ?

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[Xulfiqar]

AOA: Dear Xulfiqar sb. I am writing u many time but no answer comes yet, but im not leave my hopes, pls response my following query.

I am planning to purchase Toyota 1NZ-FE engine swap it was introduced in 1999-present , I need the latest engine model like 2014 or 2015 so my question is that how I found the latest engine (what is the main features of latest engine) because the seller said it's new but the condition told they are very old kindly tell me any method so I check the production year on engine or tell any specs of 2015 model 1NZ-FE so I purchase new engine .

depending on the production area your engine may have a julian date or a roundel stamped on it, usually the older engines are easily distinguishable from older style wiring connectors.

[Xulfiqar]

Shell ATF 134 is not available anywhere near me i guess i have to that MB 722.9 fluid.

Google a Shell oil distributor in your city, call them up. Thats how I buy my stock of ATF 134 and other large pack lubricants.

[Xulfiqar]

Bump @Xulfiqar bhai.

One more thing, after changing the radiator cap cooling system has just mild pressure as compared to before, every other thing is working alright. Low pressure is normal ?

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how are you testing this pressure?

btw - your clutch issue---> how did your mechanic "adjust" a hydraulic clutch?

[Salman922]

how are you testing this pressure?

btw - your clutch issue---> how did your mechanic "adjust" a hydraulic clutch?

Just by normally pressing the top rubber pipe which connects engine to radiator, when engine is hot and the pipe is softer as compared to previously.

And for clutch I don't know what he did exactly but he got down on the driving side floor mat, got his hands under the clutch pedal with few of his tools, did something for about 5,6mins and got back up. What it could be ?

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[ahmed2396]

Google a Shell oil distributor in your city, call them up. Thats how I buy my stock of ATF 134 and other large pack lubricants.

what other expense i should look at this age for this car?

[accord786]

@xulfiqar

Salaam Sir

I live in Karachi and have just poured 2 Litres of Guard Coolant (Green) into my Corolla 1.6 2003 after changing the radiator. Please tell me I have not just wasted 350rs per litre?

Can I run the car safetly for atleast a month or two before putting a new expensive coolant or do you advise this be changed asap?

Look forward to hearing from you soon

Kind Regards

[Xulfiqar]

what other expense i should look at this age for this car?

SBC pump replacement - USD 1000/-

[Xulfiqar]

Just by normally pressing the top rubber pipe which connects engine to radiator, when engine is hot and the pipe is softer as compared to previously.

And for clutch I don't know what he did exactly but he got down on the driving side floor mat, got his hands under the clutch pedal with few of his tools, did something for about 5,6mins and got back up. What it could be ?

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he reduced the cylinder pushrod lever length - please stop visiting such mehcanics. What happens in such is that the clutch "play" is not increased but the hydraulic pressure gets lowered, this can cause severe wear on the synchro rings in the gearbox.

[Xulfiqar]

@Xulfiqar

Salaam Sir

I live in Karachi and have just poured 2 Litres of Guard Coolant (Green) into my Corolla 1.6 2003 after changing the radiator. Please tell me I have not just wasted 350rs per litre?

Can I run the car safetly for atleast a month or two before putting a new expensive coolant or do you advise this be changed asap?

Look forward to hearing from you soon

Kind Regards

Is the guard coolant IAT, OAT, HOAT??

[umarkhan1]

@xulfiqar
The jerk issue is still there even after changing the driveshaft couplings.
I met a guy who has been keeping mercs since 2000.he said to change the gear oil and loose the adjustment cable as the car is shifting to 2nd at 3.5 k rpm
How much and which gear oil w202 c180 1994 uses??

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[accord786]

Is the guard coolant IAT, OAT, HOAT??

I am sorry but I don't have the slightest clue!

Its doesn't say much on their Website either, though I recognize the bottle that was used.

Guard Frictions

Its the first green bottle on the top-left corner

What do you suggest I do?

Kind Regards

[Salman922]

he reduced the cylinder pushrod lever length - please stop visiting such mehcanics. What happens in such is that the clutch "play" is not increased but the hydraulic pressure gets lowered, this can cause severe wear on the synchro rings in the gearbox.

Umm so what should I do now ? Clutch plates r also acting weak. Today I went to him to get the clutch on previous settings as before, he tried to do so but after that gear couldn't be engaged even after fully pressed clutch and 'grrrr' type of sound starts coming from gear if I push it harder. So my car is running on this weird jugar.

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[Xulfiqar]

Umm so what should I do now ? Clutch plates r also acting weak. Today I went to him to get the clutch on previous settings as before, he tried to do so but after that gear couldn't be engaged even after fully pressed clutch and 'grrrr' type of sound starts coming from gear if I push it harder. So my car is running on this weird jugar.

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your clutch has lost pressure - tell him to adjust it "early"

and change the clutch

[Xulfiqar]

@Xulfiqar
The jerk issue is still there even after changing the driveshaft couplings.
I met a guy who has been keeping mercs since 2000.he said to change the gear oil and loose the adjustment cable as the car is shifting to 2nd at 3.5 k rpm
How much and which gear oil w202 c180 1994 uses??

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what gearbox does your car have? the electronic 5 spd has no cable, the old 4 spd hydraulic automatics had a cable.

[Xulfiqar]

Salam, I am an owner of a gen3 3.2 DiD pajero. Over the past weekend, I took the vehicle to a mountain top in swat, towards the end of the climb, there were just rocks and mud, climbing was no issue, but on the way down, the vehicle refused to crawl in 4LLC, it used to move like any ordinary gear, had to decent using the brakes. Any idea if my vehicle has a fault or are all super selects like this? For the record, the vehicle is trip tonic and I had it in 1st

thats not normal.

[trouble_maker]

may help on your CD70 but will do absolutely nothing on your corolla engine

What is the realation of sprak plug type with no of valve per cylinder?
And any idea from where I can get spark plug of mazda rotary engine in karachi?

[umarkhan1]

what gearbox does your car have? the electronic 5 spd has no cable, the old 4 spd hydraulic automatics had a cable.

It has a four speed automatic transmission

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[Xulfiqar]

It has a four speed automatic transmission

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the "quality" of the shift in the mercedes hydraulic automatic is set by the vacuum modulator, its the round thing on the side of the gearbox with a vacuum line.

the "timing" of the shift command is set by a fighting balance between the speed governor and control cable - the cable is adjustable, adjust it in a way that all freeplay is taken up at idle position.

Check the vacuum line to the modulator and you may need to adjust it - It is adjusted by hand but you need a pressure guage to see the control pressure being adjusted. You can try to go blind by adjusting the modulator by trial and drive technique.

The oil you are to use in it is regular dexron III or similar and change it along with filter every 40,000 kms without forgetting, The torque converter can be drained also as it has a drain plug. Make sure that you/mechanic know how to tighten the sump bolts of this gearbox, they are tightened very very gently by hand. If you tighten them too much the sump will leak.

Also make sure to set the ATF level dead on accurate - you have the 722.4 unit in your car and its "cold" level on the dipstick is right where it curls up into a pointer - adjust the level to where the pointer is pointing. The scale above this pointer is for hot level only. Even a half liter anomaly in this gearbox can cause bad shifts.

[Xulfiqar]

What is the realation of sprak plug type with no of valve per cylinder?
And any idea from where I can get spark plug of mazda rotary engine in karachi?

the 4 valve per cylinder engine with pentroof combustion chamber has the plug placed in ideal location, the flame front is in perfect dead center to start spreading, In your 2V/cyl engine the plug is usually in the side of the head and the combustion chamber is usually a wedge shape, side gapping such a plug can help 1% in such condition.