1hdt (wont go past 140kph)

[lc80]

@rollence : not a fan of small cars.....4x4 is what im attached to.....i've own a daihatsu feroza and nissan patrol gq (damn 4.2 diesel engine just keeps on running and running)

 

[Dave_S]

Have you tried unhooking the caravan?

 

[Saulens4x4]

Hello, i am new here, brought HDJ80 a week ago.
Same problem on mine HDJ80, 91 year 1HD-T. Tires AT 285/75R16. Would not go more than 120kph. Have changed air, fuel filters. Absolutely no of black smoke on the full pedal. the engine starts and sounds like a charm.
What else i have to check?
What the turbo pressure should be?
What the max safe turbo pressure can be for this engine?

 

[clivehorridge]

I've got the same problem and I've replaced and checked the same list as you. All filters have been changed or were clear. Because my 80 is the non-turbo HZJ, I'm only left with the injector pump/pump timing.

I'm trying to find a local diesel boffin who would tackle tuning the pump. I'd suggest you do the same before you start tampering with the turbo.

Chas recommended a young guy at Julian Volker's shop. Maybe you can give him a try. How many miles/kms have you on the clock?

 

[Saulens4x4]

almost 500000kms on the clock, but the engine and gearbox are replaced from good condition rhd hdj80 fom uk by the previous owner. So exact mileage of the engine i unknown, but i think a lot less than 500000kms as it looks like a new. I will try to show it for anybody who can adjust the timing of the pump. also i want to replace a timing belt at the same time.

 

[clivehorridge]

Make sure to change the timing belt tensioner at the same time and replacing the cam pulley is also advised, while you're in there.