Thread: 2.8 hilux injector pump fitted to 1kzte

Correct unless you like replacing engines

we used to do a lot of repowers back in the day not high performance diesels tho put diesels into campervans tho. You need to know what you are doing if you start playing with turbos on some of the diesels tho pretty quick way to blow one up...

Originally Posted by northdude

we used to do a lot of repowers back in the day not high performance diesels tho put diesels into campervans tho. You need to know what you are doing if you start playing with turbos on some of the diesels tho pretty quick way to blow one up...

I think 'repowers' is a brand name.
I am keen to fit a 1kzte into my hiace 4wd

mitsi mechanical 4m40 pump meant to be an upgrade for the toyotas. Bit of a shag around i think though

Originally Posted by longrange308

Two wires are rev counter, first problem, have you overhauled the injectors and checked valve clearances?
Can you put up a picture on intake manifold so I can id the motor,
Also please don’t go to repowers unless you have 4 spare engines lying around

I'm nearly at the point where I'm ready to do injectors it's just been running so bad up till this point I didn't want to be pissing away on things problem solving when there was a hidden fatal flaw of the engine, it's been a bit of a dog for me this far

The Fuel shut off/spill valves are on the pumps so unless your unlucky and both are faulty...
The 1KZ has a throttle plate (the one you have wired open?) They help with a smooth quick shut down also for EGR operation I believe. They can be removed and they still shut down quickly just with more of a jolt.. But with it wired open and possibly leaky injectors its able to run on I guess, no doubt the injectors have done plenty of KS
Have you checked the intake pipe and manifold? They get well blocked up with crud!
Check all fuel lines and Primer for leaks.
Have you checked if heads cracked?

Best put an EGT gauge on there, don't want to much fuel/heat going in... or you'll be replacing the head soon if its not all ready cracked...
Intercooler is a good idea if putting in more fuel.

To be fair the factory 1kz pumps are fine, you can tweak the fuel a little on the 1kz spill valves for a little more power, 1KZ have a boost cut 14psi think it was. can get boxes/chips to get rid of it...

I was thinking it ran on a little longer than usual possibly because the wire used to provide 12v to the pump probably cuts off voltage a bit more slowly than the factory ecu driven one, I'm not super worried about it taking a 2-3 second delay to turn off if it runs and idles fine. Still shuts down just fine and nicely just a noticeable delay
I'll chase down the diesel leak back issue and see if that's causing more than just the sluggish start. Monitoring is next ie boost & temp gauges.
Looking at what's required to fit an EGT properly, that it will likely be a down the road when she is running nice job, or at exhaust change time if I get that far. Looks like a prick of a job to do properly in the correct location and taking off the hot side isn't on the cards for the moment. probably just a aftermarket water temp And boost gauge.

I'll give that Wynns EDT product a shot before replacing the injectors, I'd say there's a little bit of air sneaking in which I am hoping is at the hand pump/filter housing, when that's gone I'd say things might idle a bit nicer.

I think I'm pretty close to "rough enough" but I don't want to cook the thing in the process so I'm going to get on to the gauges so I get a little bit of feedback on what it's doing when out on the road for the final dial in when I match the boost to the feul level I choose
The thing has barely run up till this point so I'm all for simplicity, ecu/electronic 20+years on starts to get shakey at best.
Bieng just a boat puller/second truck my 1kd lux can take up the slack till I'm happy with everything's effect on the motor and I'll take it in for a final tickle up and tune by a diesel guru Iv heard of in town