260,000 TD42 matinence?

Hi guys, I’ve recently brought a 2000 TD42 GU with just under 260thou under the belt. All in all she seems really tidy but didn’t come with any recent service history. It’s engine bay and underbelly is in showroom condition and I must admit that seduced me into asuming it had been looked after and maintained better than I do now. Mostly because when I went to check the air filter the other day I found half of the last sandy track she’d been down... with way to much sand on the wrong side of the filter and can only imagine how much of it had been sucked through the turbo. Anyway that’s all cleaned up now and there doesn’t at this stage seem to be anything wrong.
I brought this from a dealer with “service history” and a fresh service from the shop, but it wasn’t until I got her home that when I was going through the books I found they stop at 55000.
I guess my question is what things start to go and need attention at around the life mine is at now and into the near future.
I’m about to drop the oil and change the filters even though they were just done “apparently” just to get any sand that may have blown through. And to organise a compression test also.
Any help would be appreciated.
Cheers 🍻

I would personally do everything so you can start fresh with it.

Engine, gearbox, transfer, coolant, etc.

You could take off the pipe to the turbo and inspect the turbo fins to see if the fins have damage or little nicks from the sand too to see if any sand has gone through the system.

Major service in a Patrol is every 40K, so the next major is due in 20,000klms

Hard to know with a 4.2 as the oil goes black the moment you turn the key after an oil change, but for peace of mind you could either crack the diff filler plugs and check the oil quality and that will give you a fairly good idea of how it has been treated. Take the wheels off, and check bearings and brakes, etc...

I am one that has always done an oil change on any 'new to me' vehicle, and hasn't had a full service history from a mechanic....

Agree with the blokes above mate. Such a great truck you’ve bought there with an iconic, becoming rare motor to boot at only 260k clicks if true. Should be a lifetime truck for you, give it the best birthday it’s ever had for lifelong start off peace of mind together:-)


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Thanks for the advice guys, I’ll be going over in the next few days. New oil and filters, coolant flush, already done the air filter 😂, good old nipple greasing and possibly trans and diff oils. Any tips on how to best refill the transmission fluid, don’t I need some kind of pump?
On another note, I was fitting the Spotties this arvo and found that the sand had made its way so easily into the air box because a part of the underguard thingy is missing. Anyone know what that might be called and where to get one?

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Originally Posted by happygu

Major service in a Patrol is every 40K, so the next major is due in 20,000klms

Hard to know with a 4.2 as the oil goes black the moment you turn the key after an oil change, but for peace of mind you could either crack the diff filler plugs and check the oil quality and that will give you a fairly good idea of how it has been treated. Take the wheels off, and check bearings and brakes, etc...

I am one that has always done an oil change on any 'new to me' vehicle, and hasn't had a full service history from a mechanic....

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Any idea on how to tell if the last major service was done or not?

Not sure how to tell mate, even if all oils looked clean, what brands/quality did they use? Plenty of threads on here from the TD42 blokes with great service advice.
In regards your stock air intake question I would personally be fitting an aftermarket snorkel ASAP, your diesel will love you for it!


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Originally Posted by TrollinAround

Thanks for the advice guys, I’ll be going over in the next few days. New oil and filters, coolant flush, already done the air filter [emoji23], good old nipple greasing and possibly trans and diff oils. Any tips on how to best refill the transmission fluid, don’t I need some kind of pump?
On another note, I was fitting the Spotties this arvo and found that the sand had made its way so easily into the air box because a part of the underguard thingy is missing. Anyone know what that might be called and where to get one?

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Trannny fluid replacement at home is a nightmare!

Get a manual pump, use your good arm and don't have a wank that day as you'll need all the strength and endurance!


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Originally Posted by AB

Trannny fluid replacement at home is a nightmare!

Get a manual pump, use your good arm and don't have a wank that day as you'll need all the strength and endurance!


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Or just fill a bucket or small esky full of hot water and leave the unopened oil bottle in the hot water to heat up and thin out. Then have a celebratory wank... win win

Have used ‘empty clean old’ automatic transmission 1L fluid bottles to fill with manual gearbox/transfer/diff oils in the past. Much more fun as you can pretend it’s a squeezy fun bag stress toy :-)


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Haha... cunny funts 🤣

Have a really good look at all of the rubber bushes on the suspension, especially the panhard rod bushes. When you change out the brake fluid, remember to do the Load Sensing Valve (some call it the load proportion valve), which is the unit attached to the rear axle via a spring.

I’ll just leave this here... while I go and throw up!!! 🤮

Attachment 74440

Ouch, not too pretty TA mate!
Ask around nicely and I’m sure that at least one of the upgraded blokes here could send you a free stocky from their shelves ;-)


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Turbine looks like it's coped a bit of something but doesn't look shocking tho, my old safari is worse than that. What is the black from on the housing looks a bit wierd? Assuming it's the standard Hitachi HT18. .

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Originally Posted by Rossco

Turbine looks like it's coped a bit of something but doesn't look shocking tho, my old safari is worse than that. What is the black from on the housing looks a bit wierd? Assuming it's the standard Hitachi HT18. .

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Yeah, it had a whole lot of sand go though.

Can’t believe I didn’t check this before I brought it on the 1/2/18. Unbelievable that this came from a big dealer in adelaide and it came with a air box full of sand.... not to mention on both sides of the filter!!

Don’t stress too hard mate, they are a very tough donk! Work with the TD42 gurus info here and give it some TLC, she’ll be right mate!!


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Yeah have to agree with MB she'll be right I reckon. My old turbo looked worse than that, have pulled the motor down somewhat at the moment for other reasons and is in pretty good condition- can still see the factory cross hatches after 360 odd K. If it's driving and performing nice then that should say a lot about its condition. Compression test will give a bit more peace of mind aswell but yeah they are pretty tough motors. . .

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Well a turn of events today, after a call to consumer affairs for advice And then a call to the service manager to find out what work had been done on the car prior to delivery. I explained what had been found in the air box and through the entire air intake system. Emailed some photos, the one above being one of them.. I was promptly called back by the dealership owner saying he wanted to send a tow truck to pick up the patrol and give me a hire car. Have a look at how far the damage has gone and go from there. Well bugger me!!
Guess I can’t of asked for anymore than that at this stage as this car didn’t come with any warranty and they very well could’ve said piss off or you must’ve had that happen in the last two weeks since you picked it up.
Got to give them credit for stepping up and owning it at this stage... time well tell how long that lasts for. 🤞

Cool that's a good result interesting to see how it all pans out. . . Good luck with it all. .

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Ok, so the lastest from the dealer is... they’re going to get the turbo completely rebuilt, Remove the head and completely clean that out and see if or what need doing and complete flush and clean of all air intake and intercooler flush!
Unbelievable really. Taking complete ownership of the situation and suplying a car for me in the meantime.
Can’t ask more than that from a used car dealer who has no warranty obligation to do anything at all.
Might go buy a lotto ticket!

That is a bloody good outcome and it's good to see them stepping up and taking responsibility for it.
Make sure you let them know how happy you are with their response.

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I got a call today to let me know what they found from removing the head. 🧐
They found that a couple of precombustion chambers had tiny cracks in them. He suggested to send the head off to a head specialist to replace all of them and reconditioning the head at a cost of $1200.
The top of the pistons looked fine as did the cylinder wall and the rest of it.
He’ll send through some photos so I can see the state of everything before and after for my records.
Good result really.

So as it stands this whole episode will set me back $1200.... pretty good considering a couple of days ago I was looking at potentially up to $10000 for a new turbo and rebuild.

I guess they have nochoice but to come to the party really..... Seeing as they had supposedly done a service on it prior to sale. I'm sure they would have noticed the sand if they had done one....... Got to keep up their "good name"

Wow pretty good result kudos to them for taking such ownership. Mine had cracked precomps which is fairly common, so for a few bucks will have a fresh top end, turbo and probably best of all peace of mind the thing will be solid as a rock for years to come, nice 1☺

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Originally Posted by Rossco

Wow pretty good result kudos to them for taking such ownership. Mine had cracked precomps which is fairly common, so for a few bucks will have a fresh top end, turbo and probably best of all peace of mind the thing will be solid as a rock for years to come, nice 1☺

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Exactly right mate... my head is still spinning at how they’ve handled it.
Bit of a roller coaster this last week has been that’s for sure!

What do you think of these happy snaps
Attachment 74493Attachment 74494Attachment 74495Attachment 74496Attachment 74497Attachment 74498Attachment 74499Attachment 74500Attachment 74501

And why would I have two different size oil filters?

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Originally Posted by TrollinAround

And why would I have two different size oil filters?

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It's a Nissan thing [emoji3]
There's a thread on here somewhere that discusses the subject a bit.... Some td42s had different sized filters and some were the same size. Can't remember what years were what though.... My 92 GQ has 2 of the same

Yeah my silver top has two the same makes it easy, maybe it's a black top thing. Bores look pretty schmick should be good once done. .

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Yeah 99 to 01 I think Nissan had a brain wave and your one of the lucky ones mate!

Does anyone know why they did that?


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Originally Posted by AB

Yeah 99 to 01 I think Nissan had a brain wave and your one of the lucky ones mate!

Does anyone know why they did that?


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Lack of meat in their diets too no doubt

So....... the phone call today was to inform me the head reconditioning joint had found a small crack in the head block between cylinders 1&2 that isn’t leaking atm but obviously will at some point 🤯
Their opinion was to get after market head as “new genuine Nissan ones no longer exist”
The cost was only $200 more than the $1200 already quoted for the reconditioning of the head.
At that point I said I’d seen them available “genuine” online and to look into it further.
Surprise surprise 5 minutes later the phone rings with the “good” news that yes you can get NEW genuine TD42t heads but would cost $800 on top of the non genuine price...
long story short I’ll have a new genuine Nissan head and hopefully peace of mind that it won’t shit itself in 12 month time, like I’d be paranoid about if going with aftermarket.
Should get the bus back next Tuesday! 🤞

Just to update, I got the paytroll back and two weeks later drove the family to Sydney from Adelaide and back for a wedding. Unbelievably we made it without a drama and hasn’t missed a beat since. The bus has a further 5000kms on her now and I’m about to give her a service before I head up the flinders with a few mates for a couple of weeks. I’ll also be sorting out some new shoes for that trip. Anyone got any experience with the cooper stt pro in a 285/75r16 and the Goodyear duratrak in the same size?


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Originally Posted by Ben-e-boy

Or just fill a bucket or small esky full of hot water and leave the unopened oil bottle in the hot water to heat up and thin out. Then have a celebratory wank... win win

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Or if you're not a wanker (or even if you are) ...... do as above (with or without the celebration) but first get to your local bunnings or equivalent & buy one of these https://www.bunnings.com.au/craftrig...-pump_p6320813 & a couple of metres of clear plastic tube to suit. Your hand (& potentially another appendage) will thank you. Use with a cordless drill.

FWIW - I was advised here to use a GL4 oil in the gearbox, not the GL5 I had previously used. Doing so made a significant improvement to cold changes.

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Originally Posted by Cuppa

Or if you're not a wanker (or even if you are) ...... do as above (with or without the celebration) but first get to your local bunnings or equivalent & buy one of these https://www.bunnings.com.au/craftrig...-pump_p6320813 & a couple of metres of clear plastic tube to suit. Your hand (& potentially another appendage) will thank you. Use with a cordless drill.

FWIW - I was advised here to use a GL4 oil in the gearbox, not the GL5 I had previously used. Doing so made a significant improvement to cold changes.

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Lol @AB could celebrate well into the night with that

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Originally Posted by Cuppa

Or if you're not a wanker (or even if you are) ...... do as above (with or without the celebration) but first get to your local bunnings or equivalent & buy one of these https://www.bunnings.com.au/craftrig...-pump_p6320813 & a couple of metres of clear plastic tube to suit. Your hand (& potentially another appendage) will thank you. Use with a cordless drill.

FWIW - I was advised here to use a GL4 oil in the gearbox, not the GL5 I had previously used. Doing so made a significant improvement to cold changes.

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Impressive, saves time and effort to do....other things!