4.2 Diesel Life Expectancy?

[bubs]

Ok

One of my grand dads mates has owned a DX patrol with 4.2 diesel since new, the rig has had all services carried out by professionals and hasn't missed a beat.

He is getting older now and past his touring stage and wants to get rid of it, it has 350,000 on the motor now.

How long can i expect the motor to last granted its service history and has never been thrased?

can i expect another 100,000 at least?

cause depending on price i might get it, it is a wagon btw

[ozy1]

The good old diesel if treated well, can last well over 500 thou, i have seen a few with more than 450 on the clock, so treat it nice,

[bubs]

What would the rest of the driveline be like do you guys reckon, i am unsure of year but i would say it is probably about a 93, will find out more about it this week

[ozy1]

well mines a 91 with 250k, and is still in excelent condition, the drive line should be alright, and as you said it has a service history, so i dont think the drive line would have been left out of it,

[bogged]

Mines got nearly 300k klms and seems happy.

Nick W on patrol list has 530,000klms on his 89model, and no problems good 5000klm servicing since new helps...

He removed the head to check it out as he has the bits to rebuild it, and put the head back on adn the rebuild kit back on the shelf until later!

[bubs]

Sounds like i might have to find a bit more out about this patrol

[BobTheMonkey]

On the topic of old TD42's what would need to be done to a motor that has done just over 400k if the life expectancy is somewhere between 500/600, Fitting a turbo with out doing any other work I’m sure is going to break something quickly.

Also would I be looking at for a full rebuild ($4k) + turbo ($4k) ??
Any suggestions.

Sorry to highjack your thread, but you might be interested in the response anyways.
Bob

[bogged]

On the topic of old TD42's what would need to be done to a motor that has done just over 400k if the life expectancy is somewhere between 500/600, Fitting a turbo with out doing any other work I’m sure is going to break something quickly.

Also would I be looking at for a full rebuild ($4k) + turbo ($4k) ??
Any suggestions.

Sorry to highjack your thread, but you might be interested in the response anyways.
Bob

I priced PIstons, rings, big ends, and gaskets the other day, that was for a TB42, that was around $1800, diesel is more than that.. So add labour, machining, etc.

You would be keen to add a snail to one with 400,000 on it. Look at it, $8k for rebuild and snail, you could go a Chev conversion for bit more.

[BobTheMonkey]

I priced PIstons, rings, big ends, and gaskets the other day, that was for a TB42, that was around $1800, diesel is more than that.. So add labour, machining, etc.

You would be keen to add a snail to one with 400,000 on it. Look at it, $8k for rebuild and snail, you could go a Chev conversion for bit more.

Chev conversion is a bit more, but the add'd bonus with a TD42+Snail will mean local parts when something goes wrong, and hopefully more then 200,000k's before a another rebuild

I’m sure there is good and bad with both and could start a whole new thread on this if it hasn’t been done already.

On the topic of rebuilding, if it has been done well, would you expect to get the same life expectancy? 400,000 +
How much add'd stress, inurn decreasing the life expectance on a New/Rebuilt TD42 would you get from adding a turbo.
Does the turbo tend to decrees the life at all?

Bob

[bogged]

Does the turbo tend to decrees the life at all?

Bob

Turbo adds pressure to the engine, so yes it could be seen as decreasing the engine life.

[MAV-RIK]

What size turbo do the turbo diesels run factory and what sort of boost pressures do they push.Mav

[bogged]

What size turbo do the turbo diesels run factory and what sort of boost pressures do they push.Mav

No GQ TD42 came with a turbo.

The GU with turbo runs around 12psi from memory.

[JK]

What size turbo do the turbo diesels run factory and what sort of boost pressures do they push.Mav

No GQ TD42 came with a turbo.

The GU with turbo runs around 12psi from memory.

I was led to beleive (as advised by Glen Binskin) that the TD42 is a small truck engine that was designed to run with a turbo.

[bogged]

I was led to beleive (as advised by Glen Binskin) that the TD42 is a small truck engine that was designed to run with a turbo.

They say the 3.0 GU is a truck engine too

[robbie]

What size turbo do the turbo diesels run factory and what sort of boost pressures do they push.Mav

guestimation of around a TO4

[Area54]

I was led to beleive (as advised by Glen Binskin) that the TD42 is a small truck engine that was designed to run with a turbo.

The best motors that happily receive a turbo are the '92 and back TD42 - these have a heavier piston to allow for heat increase.

[Mat]

I have a 90 ' model patrol wagon TD42 with Turbo dynamic kit on it, and it is a Schwitzer turbo, so it is an old kit, it is equivalent in size to a garret TO4 has been turbocharged most of its life, and has been serviced regularly. Has 305,000 km's on it, and it never misses a beat. Btw, the injector pump hasnt even been modified !!! Cheers

[spice]

my cousin has a mk with a 4.2 turbo diesel, its done over 400,000 an he is a logger regularly towin trailers an shit an hasnt missed a beat can go over the woori hill doin 90 with 2 loads of wood on

[Goodsy]

They say the 3.0 GU is a truck engine

It was before renalt and nissan spent big time on it.

4.2 is good for 500000 if serviced. Don't know how much difference a turbo makes. Mate had its transfer case rebuilt a 350000km. Is this normal?

[Area54]

... its done over 400,000 an he is a logger regularly towin trailers... can go over the woori hill doin 90 with 2 loads of wood on

This would be the secret to its longevity - good solid work, not into it like a racecar.