Valvr tappet retightening intervals

[TheGreenThing]

As the topic says, how much KM do you guys retighten your d4d 2kd-ftv vnt valve tappets

[dervdave]

Service book says every 4yrs / 40k miles

[boxhead55]

Yep that's correct (we) my old toyota dealership used to do the injector seals and orings as well. Every 40 000km. Which is in the service

After service advantage ran out
(fixated price service) we gave the customer the option, as the check and injector seal change took an average 1 1/2 hrs longer

I have been doing them since the model release. I think I have under service conditions including the tappet measurement check and injector seal change.
I have only found like a hand full with tight tappets. Sometimes loose tappets. Literally hundreds were within spec. Just the standard 40 000km service was conducted.

Around the 160 000 we see more adjustment required.

Now to adjust the tappets. A measurement has to be made then you measure the old bucket calculate the new bucket size and then fit that.
A big job as the buckets sit under the camshafts on top of the valves.
Cost around 40 bucks each and there is 16 of them in there. Yep you have to remove the camshafts!

The average tappet adjustment would take about 4 hrs and roughly 8 shims/ buckets would be replaced

Hope this helps.

[boxhead55]

Cold Intake 0.20 to 0.30 mm (0.0079 to 0.0118 in.)
Exhaust 0.35 to 0.45 mm (0.0138 to 0.0177 in.)

[boxhead55]

pic of the head and you can see that the camshafts have to come off to replace the shim buckets

[andy666]

pic of the head and you can see that the camshafts have to come off to replace the shim buckets

I've never adjusted them myself, but I have been told that a special tool is required to remove/install the cam shafts. Is this true, or can they simply be timed and bolted back down?

[boxhead55]

No mate.
There are always special service tools for all jobs.
Like one for removing and installing the buckets. Just use a magnet pen.

Loosen cam bolts from out side in.
And tension bolts from inside out in three tension steps.
This is to stop bending the camshafts


But all jobs can be done at home with no issue. Just time consuming that's all.

[Jon88]

Hey mate,

I had one of these buckets replaced a while back through a dealership. Overall cost was near on $1000 and they only replaced one! How come they are not swapped out all at the same time as a full replacement set?? If one was 'out of spec' a few months back, what is to say that 'tomorrow' another won't be out that was all good when the first one got replaced

He reckons you can tell by listening to the engine at idle to hear if there are any issues regarding the shims?
is this true or just a load of sh*t?? This was beyond my mechanical knowledge so didnt have many options but to go ahead with what i was told...

Initial issue i went to the dealership for was a ticking noise under load (2500-3500 rpm) that i thought may have been something to do with the lifters. (4L petrol - ticking is still there)
either way, still not convinced and think I've just been screwed over hard, whats your thoughts?

[boxhead55]

A little bit different on the 4L but same. On that motor they used to be hydraulic lash adjusters then they went to multi size bucket shims.
Lots more to remove on a 4 l motor and another 8 buckets.
Price sounds close

[boxhead55]

John the buckets normally have a 4-6 thow .1 -.2 of a mm. tolerance between loose to tight. Normally good for the life of the motor

But lack of service or valve rescission from LPG or dusting can get expensive

Like I said every 40 000 they are or should be checked normally and I have found they are all good up to around the 160 000 mark.
And at that km they are getting or at the tight side of things.
Lack of service they get loose and tappy.

I did not do much in the costing side of things but normally 2 odd hrs to replace after the initial inspection of about 1 1/2 hrs.
So say 3-4 hrs plus parts and gaskets and seals.
So I would guess yep would be in the. $1000 dollar mark

[TheGreenThing]

Thanks.. Thought i need to have mine retightening
Because my isuzu crosswind (4ja1) needs to be retighten every 10,000km as per my isuzu specialist mech.

[andy666]

Cheers, boxhead55. I was pretty sure that a special tool wasn't required, but I usually work on heavy vehicles and have struck some pretty weird shit on some of them, so you never know

[davo05]

Hello guys
I have a 2006 d4d with 118000 on the clock with no tappet adjustment and is going strong with no noise even with the cold starts . I do all my servicing myself and to put it frankly I don't trust my local TOYOTA stealer ship at all after having taking my car there for a service only to pick it up with more dirt on it than when I dropped it off(joy ridding)supposed to be washed after servicing ?,the oil was as black as if it wasn't even changed they recond that's how it goes after servicing(Bull).
I think they would honestly make things worse.
If I could find a good mechanic I could trust I would get it checked but for now I would leave well enough a lone.
Every 40thou into the mechanics to check this starts to get a costly even, surely motors these days more reliably built than that.
Just my 2 bobs worth

[andy666]

Hello guys
I have a 2006 d4d with 118000 on the clock with no tappet adjustment and is going strong with no noise even with the cold starts . I do all my servicing myself and to put it frankly I don't trust my local TOYOTA stealer ship at all after having taking my car there for a service only to pick it up with more dirt on it than when I dropped it off(joy ridding)supposed to be washed after servicing ?,the oil was as black as if it wasn't even changed they recond that's how it goes after servicing(Bull).
I think they would honestly make things worse.
If I could find a good mechanic I could trust I would get it checked but for now I would leave well enough a lone.
Every 40thou into the mechanics to check this starts to get a costly even, surely motors these days more reliably built than that.
Just my 2 bobs worth

Only Checking the valve clearance every 40,000km and probably don't need adjusting until 160,000km doesn't sound like a reliable engine to you??? and even if you found a mechanic who knew more then you and you could "trust" it would still be too expensive???
Maybe look at buying a push bike

[Jon88]

John the buckets normally have a 4-6 thow .1 -.2 of a mm. tolerance between loose to tight. Normally good for the life of the motor

But lack of service or valve rescission from LPG or dusting can get expensive

Like I said every 40 000 they are or should be checked normally and I have found they are all good up to around the 160 000 mark.
And at that km they are getting or at the tight side of things.
Lack of service they get loose and tappy.

I did not do much in the costing side of things but normally 2 odd hrs to replace after the initial inspection of about 1 1/2 hrs.
So say 3-4 hrs plus parts and gaskets and seals.
So I would guess yep would be in the. $1000 dollar mark

Sweet, cheers for clarifying that mate.