1HZ Replacement Need Help

[milky]

Hi Guys,
I have been helping out my brother in law with his 80 series Cruiser after he cooked the engine(blown heater hose) and has blown major Blown Head gasket,
Anyway it was decided to replace his motor after he found another 1HZ complete motor with only 100,000 K/ms on it,
I have removed his old motor out of his rig,and after the new motor has arrived I have noticed some differences with it, they are thicker fly wheel and different air cond pulley which hopefully I can just swap over his old ones,
However What I need your help with is the the new motor it has 2 electrical plugs on the fuel injector pump,fuel cut off valve is 3 pin and the other plug is 2 pin,
Compared to his original motor the fuel inlector pump plug on that is only one 3 pin plug,
Is it possible to wire up the the new engine injector pump in the 80 series and keep it on the motor,
I don’t really won’t to change injector pumps because his old engine has around 500,000 Kms on it,
Hope some one can help many Thanks!

 

[jomelo]

Try posting here:

Diesel Tech / 24 volts

BJ/HJ diesels (3B, 13BT, 1KZ, 1HZ, 1PZ, etc) and other diesel conversions (ie: 4BT, 6BT, etc)

forum.ih8mud.com

Will likely get more responses.

 

[DivByZero]

It could be related to the tacho pickup. Do you know what vehicle the donor motor came out of? The injector pump has a tacho pickup on the engine side, but it's only fitted for models that had a tacho on the cluster.

The 1HZ engine is obviously used in vehicles other than the 80 series, and it sounds like this probably wasn't fitted to an 80 based on the flywheel and AC pump differences. Being entirely mechanical you can still drop this motor into your 80, but you'll need to be prepared to make some adjustments like this as you bring it over. I'd personally pull the pump, and switch over the wiring from the original engine. If the replacement motor is missing the tacho pickup, I believe you should be able to swap it over from the old pump, HOWEVER, do NOT open the injector pump itself unless you're 100% sure what you're doing. Confirm the issue first, then look at that process if required as its own step.