tell me bout the D22

[dangerous]

right so recently lost my D21 td27t in a head on... looking at a D22 thats the 3l turbo.
the way I see it thay are the last of the real diesels bugger ya common rail 2.5's and the likes.
But was speaking to the local cocky today and he said his 3l d22 shit its injecters at the cost of 6k, common rail aperantly???

[Crash bandicoot]

right so recently lost my D21 td27t in a head on... looking at a D22 thats the 3l turbo.
the way I see it thay are the last of the real diesels bugger ya common rail 2.5's and the likes.
But was speaking to the local cocky today and he said his 3l d22 shit its injecters at the cost of 6k, common rail aperantly???

his must have been the YD25 as the ZD30 run a vp44 rotary injector pump same as the QD 32ETi and TD27 Eti.

The 2000 onwards YD25 DCI is common rail which means he probably had a grey import as the nz new ones would have come direct from japan with a ZD30 or yd25DDti (vp44 pump) or a KA engine

In short you are safe with a well maintained ZD30 all the ex army nivaras are ZD30's only issue is they aren't intercooled.

Only issue with nissan engine codes is the letter's after the capacity ....they could be the difference between 90 kw or 400 kw

[dangerous]

interseting ta, ill find out if it was an import... so what ya saying is the NZ new 3L is old school pump but imports often had the common rail pump with the 3L?

[passengerpete]

the older d22 had a 3.2L diesel non turbo that was super reliable. and ya could bolt the turbo and manifold from ya d21 on to it. the 3 litre d22 is know to be a grenade if not maintained.

[tweake]

the zd30 runs the vp44 style pump BUT its not the same pump as the td27ti or qd32ti. the vp44 is not an old school pump its radial plunger and makes far more pressure than old style pumps.
injectors are 2 stage and cost a bit more than older ones.
the system was a stop gap cheaper alternative to early common rail.

$6k sounds more like injection pump failure which is not uncommon.

the navara 3l never had common rail, even with imports. only common rail zd30 is the later patrol and teranno.

the most reliable d22 would be the QD32 model. easy enough to turbo.

[dangerous]

the 3 litre d22 is know to be a grenade if not maintained.

fark... really? never heard a bad word on them, ya all have me worrying now, the model Im looking at is 05ish venture???

[tweake]

zd30 engines are nicknamed "the grenade' due to the amount of patrol and terrano engines blowing holes through pistons.
navaras are not quite as bad (due to lower power and different turbo/control sytem) and its really the pre 03 ones that blew.

an '05 is lower risk. we have 3 at work and they are at 200-250k now.

[ChurchurDan]

If it is cheap enough buy it, Nothing else in that age bracket is any better for reliability. And if the ZD self destructs convert it to a QD32 turbo engine.
I know of a few ZD30's with over 250,000 ks and still going strong, I also know of a few that have blown to bits. The navara version is more reliable than the Terrano version as they dont have an airflow meter which is a major cause of engine failure.

[dangerous]

so the zd30 is chain and push rod like the td27?
shit 250k is bugger all a 2.4 surf I had was near 600k and still strong as a ox

[Crash bandicoot]

the 2L isn't exactly the pinnacle of engine technology or power though now are they...

[tweake]

so the zd30 is chain and push rod like the td27?

no push rods but still have timing chain. 4 valves per cyl instead of two for the TD and direct injected.

[ChurchurDan]

The ZD30 is OHC 4 valves per cylinder. And like ALL late jap diesel engines they are highly strung, make good power and have decent economy. But because they are pushed to the limit if something goes wrong it is usually catastrophic.
250ks is a good innings for most late model stuff without a major component failure.
They all have problems so pick what you like and be prepared for a 10k bill when something goes wrong.

[tweake]

And like ALL late jap diesel engines they are highly strung, make good power and have decent economy. But because they are pushed to the limit if something goes wrong it is usually catastrophic.

nah not even close.
euro's are higher output for their size. japs are fairly lazy engines in comparison. even still both are still cable of even more output. they are no where near the limits in factory tune.

[ChurchurDan]

Your right I didnt put that very well
It was meant to be they are highly strung compared to the previous generation of jap diesel engines, Which made the earlier engines more tolerant of neglect or crap fuel. This is what made them so reliable and set the bar high for current engines, And we now expect the same reliability and life expectancy from the newer stuff.
If you have a d21 navavra with a td27 and you dont service it and put fuel in it out of the farm tank it will probably keep going and do 400,000 ks.
If you have an D40 with a YD25 and try that it will cost you a lot of money to keep it going when injectors crap out or it runs a bearing.
People in this county are terrible at vehicle maintenance and expect our new navava to put up with what our old one did and keep going, when it doesnt we rubbish it and say it is a pile of shit.
Sure some engines do have issues that cause premature failure but if serviced correctly and all ways filled with good fuel they will be reliable and last a long time. By servicing I mean proper servicing not just changing the oil every 10,000ks

[tweake]

i think what you mean here is the fuel system is built to very high tolerance and its takes very little to damage it.
the old ones got away with the crap fuel but common rails don't. common rails are very expensive to repair. the vp44 style is less expensive but still substantially more than an old VE pump.

quite right about people neglecting vehicles. they usually sell them off before they fail. "it was a great car, never did anything to it". damn right, the next owner had to replace everything!

[dangerous]

If you have a d21 navavra with a td27 and you dont service it and put fuel in it out of the farm tank it will probably keep going and do 400,000 ks.
If you have an D40 with a YD25 and try that it will cost you a lot of money to keep it going when injectors crap out or it runs a bearing.
People in this county are terrible at vehicle maintenance and expect our new navava to put up with what our old one did and keep going, when it doesnt we rubbish it and say it is a pile of shit.
Sure some engines do have issues that cause premature failure but if serviced correctly and all ways filled with good fuel they will be reliable and last a long time. By servicing I mean proper servicing not just changing the oil every 10,000ks

IMO, think ya on to it there, was thinking best I get another TD27, did the pump on that for $400, but alas try n get a low milage... changed my oil every 5k so with any luck the D22 I chose the owner will have done the same

[1hamish1]

I just went through this recently and after reading all about the zd30 problems all over the net bought a d22 with a qd32. Mine is one that nissan turboed from new, neat little set up and 2.5" exhaust goes really well. The navaras with the zd30 are considerably better than the early patrols and terranos because they dont have the electronic guff and variable turbo. But after reading on the net I got put off one. Couldnt be happier with the qd32+t.

[dangerous]

I just went through this recently and after reading all about the zd30 problems all over the net bought a d22 with a qd32. Mine is one that nissan turboed from new, neat little set up and 2.5" exhaust goes really well. The navaras with the zd30 are considerably better than the early patrols and terranos because they dont have the electronic guff and variable turbo. But after reading on the net I got put off one. Couldnt be happier with the qd32+t.

so the qd32 ONLY came out in the model between the old 2.7 powered D21 and the D22 with the zd30 aye? similer shape to the 22 but with a square light?

[tweake]

yes roughly.
series one d22 (square headlights) had td27 and qd32. some counties got td25t. series two d22 got the zd30 and yd25 (not commonrail).

[dangerous]

well... been keeping an eye on the 3L D22's on trademe aye, and theres been two repowered after 200k and at 180 one with a new pump... so kinda woundering aye, so the other truck Im looking at is a Rodeo, so just posted under Isuzu to gain info on them