TD42 Engine Review

 

The TD42 first saw the light of day in the Patrol back when men were men and shitty craft beer hadn’t been invented yet. It hung around right up until 2007 when Nissan screwed the pooch and replaced it with the ZD30. It has also seen service in Civilian buses and allegedly quite a few forklifts.

It has a number of variants that we will discuss further here.

 

The Silvertop.
If your vac pump is on your alternator, you’ve made the right choice. Silvertops LOVE boost. I personally run 30 psi through the Cowboy Tuned GQ without worrying about it at all. Not one bit. I definitely don’t pucker my arsehole every time it goes over 15psi.

N/A Black Top
This is the weakest of the TD42 variants. If it’s got no turbo from the factory and the Vac pump is on the timing case, you can kiss your arse goodbye if you get too liberal with the boost controller. N/A Blacktops are best left to suck their air like God intended.

TD42T and Ti
The big daddies of the TD42 range. Both of these came from the factory with a turbo strapped on. The HT18 is about as handy as a fat asthmatic kid who’s forgotten his puffer, but it’s better than nothing. The ti came with an intercooler and electronic timing on the pump. The stock intercooler is a bit like trying to put out a bush fire with a water pistol and is best upgraded as soon as the fuel screw is fucked with.

Sale!
$29.00 inc GST
This product has multiple variants. The options may be chosen on the product page
Sale!
NEW
Original price was: $66.00.Current price is: $55.00. inc GST
This product has multiple variants. The options may be chosen on the product page
$36.00$42.00 inc GST
This product has multiple variants. The options may be chosen on the product page
Sale!
Original price was: $66.00.Current price is: $55.00. inc GST
This product has multiple variants. The options may be chosen on the product page

Gearbox

The vast majority of TD42s came with a 5 speed manual. There are very rare Australian delivered versions equipped with the RE4 Auto (Don’t tell me this isn’t true, because I have one) The auto versions are great for melting pistons under slight load at about 100km/h when the EGTs get higher than Snoop Dog.

Design Features
Nissan really thought about owners when deciding where to put the oil filters. They’ve made sure the chassis, the side of the block and the floor are never short of lubrication after changing them.

They came up with an ingenious way of reducing the amount of bent rods by making the crank weak enough to break before they do. Unfortunately it doesn’t work every time, but it has saved many a TD owner a bent rod by sacrificing the crank instead.

The factory turbo models came out with a boost compensated pump. They are meant to offer more adjustment and prevent over fueling, but to be honest they are a gimmick that can be completely bypassed by using a flat blade screw driver and a 13mm spanner to send home the fuel screw.

Specs

Manufacturer             Nissan Motor Company

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Power Output             Yes

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Fuel                            Diesel

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Consumption               10-20 Lt /100km Diesel

10/20Lt /100km Coolant

*Crank consumption subject to driving style and power level

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All in all the TD42 has reached legendary status. It will get you home 100% of the time, 50% of the time. Doubling the factory horsepower may have some negative effects on the longevity of it, but at about $8k for a flogged out 20 year old replacement motor with 500k on it they are cheap and easy to replace and go again.

Our completely unbiased score is 11/10. If you agree you can use the code kettle for 15% off our gear. Please do not use it if you do not agree. I will find you and come and leak diff oil and grease on your driveway.