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Replacing a 2h with a 1hz in a 60 series.

Tech Talk for Cruiser owners.

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Replacing a 2h with a 1hz in a 60 series.

Post by L,C 60 »

Has anybody done this or know of this been done as i'm looking at doing it in my 60 & then adding a turbo for good measure.

Any info would be great

This has no doubt been posted before so even a link if somone knows would be good.


Cheers hj60
AKN hj60, GO THA YOTA
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Post by Shadow »

believe theres a guy thats done it on ih8mud.com

exhaust on the other side

need to fab new engine mounts of course,

need gearbox to suit a 1hz, or i think someone said there might be a bell from a 75series that will mate the 1hz to your current gearbox, but not sure about that.

believe a 1hz has a fuel return line, 2H doesnt.

the 80 series radiator would probably be needed aswell, i think its bigger, 4 core?

otherwise they are both essentially mechanical engines, and the electronics are not mission impossible to convert.
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Post by L,C 60 »

Shadow wrote:believe theres a guy thats done it on ih8mud.com

exhaust on the other side

need to fab new engine mounts of course,

need gearbox to suit a 1hz, or i think someone said there might be a bell from a 75series that will mate the 1hz to your current gearbox, but not sure about that.

believe a 1hz has a fuel return line, 2H doesnt.

the 80 series radiator would probably be needed aswell, i think its bigger, 4 core?

otherwise they are both essentially mechanical engines, and the electronics are not mission impossible to convert.


GEAR box ain't a prob gona do both reco eng & reco box at the same time
AKN hj60, GO THA YOTA
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Post by Shadow »

it will end up being a fair bit, reco engine and gb gott be at minimum $5k if you know someone really well, $6-7k if you get normal prices

so your conversion will be $6k-$9k

for $10k ou can get a 6.5turbo diesel

or sell your current and get a 80 series :S
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Post by L,C 60 »

Would be costly normaly but we reco toyota 4wd engines & gearboxes at work all the time.

Just asking to see if there is any probs with the conversion as now body at work has done this one before.
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Post by skootin »

Your best bet is to get complete donour vehicle as everything is on the opposite side :-P/s a/c exhaust starter motor input shaft changeover needed if your box is 10/85> wiring harness is also different relays and solenoids big job
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Post by beanz2 »

Doing this to my HJ75, except I'm using a 1HDT from an 80 series.

Motor mounts needed to be moved. A 5 speed and transfer from a MWB HZJ73 was used to keep the shifters coming at the same location on the floor. Propeller shafts were kept the same as the transfer was kept at the same location as the old one. Power steering lines and cooler tubes had to be changed with those from the donor or custom made. Same with AC lines. Radiator from the same HZJ73 was used. For some reason the 73 return radiator hose didn't fit well, one from a diesel 80 was used. The lower one worked well.

Brake lines had to be moved but this maybe because of the turbo, the 1HZ may not have such a problem. Accelerator cable from the 73 donor attaches right up to the pedal. Vacuum lines and reservoir could be adapted from the 2H one, but I chose to use the new one from the donor. If using the 1HZ the old air cleaner can be used. Tach from the donor will be used as the 2H tach doesn't work, so the whole HZJ73 instrument cluster is going in.

Engine wire harness from the donor would save a lot of time in the swap. Any HZJ70/73/75 would be a good parts donor. An HZJ80 would make a fair donor as the engine accessories and the gearbox are different. I'd say the engine mounts would have to be custom made or modified to work on 60 series frame as they are wider than a 75, even wider than an 80 series.

Dave
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Post by L,C 60 »

Cool thanks guys will tacke all the info into consideration as i get the job done .
Will have pics when its all done.
Need to find an engine & gearbox to rebuild for the coversion now.(will prob find one at work but)
AKN hj60, GO THA YOTA
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