Outer Limits 4x4 Board

Hey all, I have a 78 model fj45 and my 2f is dead. What is easiest and best diesel conversion?

Any ideas would be great!

Cheers!

2H, but good 2Fs can be found cheap and produce more torque and power. Put it on LPG and you will outperform the 2H all day.

2H is a great motor.

yeah, I would really like to put a diesel in. So you guys think the 2H is the best option?

What sort of money should I pay for a good one?

I sold my 2H with Gearbox and Transfer out of my Troopie for $3300 about 4years ago.

I haven't looked at prices lately though.

hmm, not bad. I was expecting a fair bit more.

You should be able to get a motor for less than 2k.

If not, Buy a rusty old troopie, use the motor and flogg the rest to get your money back.

Anyone done this conversion? Is it much work?

the 1HZ will also bolt straight in, using your existing gearbox and transfer, a far better motor than the 2H especially if you are ever going to consider turbocharging. it's a fairly easy conversion as wiring for either (2H, 1HZ) is minimal, glows and fuel shutoff and that's it. you might find that you will need to change diff ratios afterwards, depending on what you've got to start with and how it performs (or doesn't).


goodbye carb. goodbye points. goodbye 20+litres/100km.

i'd expect to pay maybe $4k for a 1HZ, but that's a complete guess.

cheers

Brian

ahh, I was wondering if the 1HZ would fit easy... Sounds good. I know the 1HZ's are a little more expensive to buy though.

To my knowledge the 1HZ would not fit.

If you are getting a diesel think long and hard about it.

A 1hZ in good condition won't need a rebuild. Whereas a 2H would and that would make the costs almost equal. The 2H is similar, but takes some work.

If you get just the motor, let me know, I have some relays and vacuum canisters for diesels if you want to convert.

I was under the (possibly mistaken!) impression that all the F and H family motors were more or less interchangable in the bellhousing/clutch/engine mount departments?

from the Diesel Toyota LandCruiser list:

"On Monday, Aug 11, 2003, at 05:53 Africa/Johannesburg, you wrote:

will a 1HZ bolt in where a 2F used to live? specifically in a '78 FJ45?

If you get one of the earlier 1HZs which came with the H55F including its bellhousing, and you're prepared to do some bracket modifications, then yeah, it should fit. You'll want an H41 or an H55F to shift with though; the H42 will not play very nice with that diesel. You may need to do something with your rad as well, but apart from that, you should be fine. Be sure to get a 12v 1HZ to keep things simple.

hth "

and

"Hi Brian, I replied to the DTLC but for some reason I don't see my reply there.

Yes it will work nicely. You need to make new motor mounts and if you use one from a 75 series (with H55f / split case transfer), you can use an 81-84 40/45 series rear crossmember. I have one from an 80 series in a 40 and the tranny/transfer is a bit too long in my opinion. You will be OK in a 45 though.

Here's my swap:
<http://home.comcast.net/~dtay/1HZ_Swap.html>
The project is on hold pending completion of other projects like building a new house, a new HJ75 troopie and trying to get a BJ74 from Japan into the country, LOL."



so it's not completely simple but it's far from impossible.

I need to add the radiator on the FJ45 should have the outlet and inlet at the right locations for the 1HZ. The fuel tubing on the FJ45 needs to be upgraded to a larger size for the diesel. If there is no fuel return line (I don't know if Aussie petrol 45's have that) you have to add one.

Dave

more from DTLC:


"There is something nasty in the 2F having 4 engine mounts, gearbox/T-
case hanging onto it, 'in the air', vs the diesels having 2 engine
mounts plus 2 gearbox/T-case mounts, or the other way around, not
sure....

Quote from www.buschtaxi.de: 'All J4 6-cylinder have the same spline-count/length & bolt pattern,
regardless of diesel/gasoline'.
And since 2H went over from J4 to J6, it should at least hold for
that engine, and given the fact that the same gearbox was used for
12H-T, that one too.

Hence it seems as if replacing a 2F with a 3B (4-cylinder) is more
problematic than with any 2H/12H-T/1HZ/1HD-(F)T(E).
(adding problem of mounts vs that of splines)

Added problem when replacing gearbox/T-case too, given older/J4: you
loose your T-case parking brake. J6 already had axle-side parking
brakes, right from the beginning, not?"


but does the 78 FJ40 use the 4 engine mounts/zero gearbox mounts? my '80 FJ40 had 2 engine mounts and a third mount under the transfer/gearbox. so when did it change? anyway the problem will occur with the 2H and the 1HZ if your 45 has the 4 engine mounts and no gearbox mounts.

cheers

Brian

hmm I'll have to look.

lots of replies, thanks all.

dumbdunce wrote:Quote from www.buschtaxi.de: 'All J4 6-cylinder have the same spline-count/length & bolt pattern,
regardless of diesel/gasoline'.
And since 2H went over from J4 to J6, it should at least hold for
that engine, and given the fact that the same gearbox was used for
12H-T, that one too.

Hence it seems as if replacing a 2F with a 3B (4-cylinder) is more
problematic than with any 2H/12H-T/1HZ/1HD-(F)T(E).
(adding problem of mounts vs that of splines)

The 1HZ (at least the one from an 80 series) comes with a 21 spline input shaft in the tranny as opposed to the 10 spline shafts in the 2H/12H-T engines. While the German site is correct all 6 cylinder engines in the J4 series (40/43/45/47) have the same input tranny shaft, the extrapolation to the 1HZ is not.

Dave

so it's just a matter of choosing the right clutch for your early or late gearbox?