Ask Xulfiqar - An Automotive Encyclopedia

[tintin1]

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[hamza_xeg]

Of course, as long as the clearances are within the specified limits, which happens quite often in well-maintained engines.

Right. Another thing, what exactly is opened up in the engine bay for this procedure ?

its usually okay till about 100k

The car has done nearly 200k. Will your guy have the lifters as Xulfiqar bhai said, since z series doesn't uses shims. I was saying Magna Tech because they apparently have modern tools available with them.

[margallar]

The only tech required in your case is a feeler gauge and brains (which is rarer than you think).

You can go anywhere you like. You can learn the process online and then ask the workshop how they will do it, then you shall know if it is jugaar or not.

The clearance is measured with feeler gauge, when engine is at tdc , then according to this measurement, new lifters need to be purchased from dealership.

If it is the older model without vvti, it will take shims.

Valve cover is opened for this job.

2nzfe till 2008 had shims, newer vvti variants need new lifters.

[VCheng]

Of course, as long as the clearances are within the specified limits, which happens quite often in well-maintained engines.

Right. Another thing, what exactly is opened up in the engine bay for this procedure ?

[quote="margallar, post:10031, topic:209322, full:true"]
its usually okay till about 100k
[/quote]

The car has done nearly 200k. Will your guy have the lifters as Xulfiqar bhai said, since z series doesn't uses shims. I was saying Magna Tech because they apparently have modern tools available with them.

The only tech required in your case is a feeler gauge and brains (which is rarer than you think).

You can go anywhere you like. You can learn the process online and then ask the workshop how they will do it, then you shall know if it is jugaar or not.

The clearance is measured with feeler gauge, when engine is at tdc , then according to this measurement, new lifters need to be purchased from dealership.

If it is the older model without vvti, it will take shims.

Valve cover is opened for this job.

It is a fairly simple job, as described above, but it takes finesse to do properly.

The valve cover needs to be opened, and that entails a lot of ancilarry stuff to be unclipped, unbolted and removed (and reinstalled correctly).

There is a set mechanism for checking the clearances for both intake and exhaust valves, using the correct range for a hot or cold engine. Some engines are done with No.1 piston and TDC, some need it to be 20 or similar degrees BTDC. Each piston is checked in the correct order, having rotated the engine from the starting position to ensure that the valves are not being pressed in by the cam lobes.

Each reading is written down and new shim size (or lifter) is calculated for those that are out of specification. This usually involved removing the camshaft to get at the old shims/lifters to get their information for the calculation.

The measurements are repeated after installing the new shims/lifters to ensure that all the clearances are now within specification. Quite often shims/lifters can be moved around to reduce the number of new ones needed. Do not have anything ground to get the clearance as it will remove the hardcoat and cause problems later.

Good luck!

[hamza_xeg]

After reading both of your suggestions and comments, i will have to bring someone who can supervise the proceedings, to be honest with you guys, i don't think i will be able to observe all this correctly. I just don't have the technical know how. I will try and learn the process and ask around locally if they can perform the task but i will be going to Lahore so why not get it done over there. Now, i don't know much about the mechanics there, only know two or three people. Rest feel free to give suggestions if you know any competent people there who can get the job done correctly. My car is a 2006 probox with 2NZ-FE engine but it says VVT-i on the engine cover. Thank you to you guys, true mvps.

[VCheng]

The following document will give you a pretty good idea of what to do:

http://testroete.com/car/Toyota/celica/repair%20information/repair%20manual/06%20-%20Engine%20Mechanical/03%20-%20Valve%20Clearance%20-%20Adjustment.pdf

[umairjamil6]

Watch a few videos and google all the technical names you don’t understand This will give hou a lot of info

[margallar]

Without second thoughts, co ordinate with osama, he follows service manual and regularly invests in tools.

However the job is subject to availability of parts so come when you have more than one day.

Actual work is only 3 hours . But finding the parts is a pain.

[hamza_xeg]

Watch a few videos and google all the technical names you don’t understand This will give hou a lot of info

That's exactly what i am doing right now. Thanks.

[hamza_xeg]

How to get in touch with him ? Is he a member here ?

[margallar]

His id is @syncview

[hamza_xeg]

Right. Will shoot him a PM.

[Xulfiqar]

Some bmw atf are about that price, and if its a 2004 it was the changing year from 5 to 6 spd auto,

So the exact transmission number is required to get the correct atf, otherwise the vehicle will become useless.

On the modern zf 6hp and 8hp, the sump also needs to be replaced as it contains the filter itself. Which means added expense.

Is this person also wallet holder like yourself?

[hamza_xeg]

I have another issue actually. The throttle body is stuck, apparently one of the bolts in spinning freely inside. I went for tuning which comprised of taking spark plugs out for cleaning (one was full of oil and carbon), air filter cleaning etc. They couldn't take the throttle body out. Solutions ?

[hamza_xeg]

@margallar @VCheng @Xulfiqar

Made a video of the noise coming from engine to give you guys a clearer view. If you listen closely you can hear the knocking/banging sort of noise aside from the idle. This is with engine warmed up.

[sajidcompk]

how to clean Fuel line,
my car 2013 GLI got fuel pump failure multiple time in last 6 months,
last time mechanic told that the problem is with Filter, which is choked ,
changed it with new,

now my question is can we use some method to clean the complete fuel line, from fuel tank till engine
to clean any residue there due to clogged fuel filter

[Xulfiqar]

Use stethescope to identify source of noise, videos dont relay the noise correctly.

[deltree]

Lahore has Osama, what more do you need. Ask us to find someone equivalent in in Islamabad or Karachi and we will be left scratching our heads.

[tintin1]

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[Xulfiqar]

ZF lifeguard 6 is not too difficult to come by, it can also be substituted with Ford Mercon SP oil. But requires a full and complete change.

It has another issue which is electric and is caused by either damaged wiring or noise on the canbus which shuts down the transmission ECU.