Thread: 2 1/4 ltr diesel

less power, more economy better lugging and better off road if you dont want to go fast.

The diesel is noticeably less powerful than the petrol engine, but makes up for this by low down torque - it will pull quite strongly down to the stall, although this is probably not good for it. This makes it quite acceptable off road, but on the road acceleration, particularly for lwb vehicles and if loaded or towing, is markedly poor, and speed will drop off on hills to a greater extent than for the petrol engine. It is a lot noisier and harsher than the petrol engine as you would expect.

Fuel consumption is very much better than the petrol engine, by perhaps 50%.

Surprisingly, the diesel engine does not seem to be significantly more durable than the petrol engine, although it will need less maintenance. Both engines last better if given regular oil and filter changes.

John

A diesel set up well can have the same or more power as a 2.25P. I have a late model (1979), rebuilt 2.25D in a 109" ute. Another mate has a rebuilt 2.25P in a 109" ute. The last time we went on a trip together, I beat him up ciunningham's gap, even though I have 33's and he has 32's.

I have extractors on mine a a couple of minor pump tweaks. It gets about 10 l/100.

I recently drove it from Brisbane-Perth - didn't miss a beat, but average fuel consumption was a bit higher (10.5 or so), because it was heavily loaded and we were usually sitting on 90kph (without overdrive).

thanks everyone, sounds good. i think i might look further into it. i'm a diesel lover.. my work ute is an 04 rodeo turbo deisel. love that grunt and reliability. and the exhaust smell too... this little town i'm in has plenty of hills, so i'd better equip the landy with a magazine rack for the hill climbs.i have also found a diesel donk for sale in maleny.!

Originally Posted by isuzurover

A diesel set up well can have the same or more power as a 2.25P. I have a late model (1979), rebuilt 2.25D in a 109" ute. Another mate has a rebuilt 2.25P in a 109" ute. The last time we went on a trip together, I beat him up ciunningham's gap, even though I have 33's and he has 32's.

I have extractors on mine a a couple of minor pump tweaks. It gets about 10 l/100.

I recently drove it from Brisbane-Perth - didn't miss a beat, but average fuel consumption was a bit higher (10.5 or so), because it was heavily loaded and we were usually sitting on 90kph (without overdrive).

would love to hear about the pump tweaks?

I run a 1962 IIA 109 traytop 2.25 Diesel as my everyday car. It may appear a little slower than a petrol off the line, but a petrol will only be quicker by burning lots of fuel. Once up to speed, I find that it has about the same amount of power as a petrol. I usually am in top gear by about 25 mph, but you can take this quite easily down to 20 mph. The torque is fantastic. The engine will pull at low speeds, so low that other engines will not even idle that low. I just spent the better part of a week in the Flinders Ranges. Lots of nice steep tracks. The engine would happily work right down to when you could quite clearly hear each power stroke. The fuel consumption was about half that of the petrol that came along with me. When set up right, they are fantastic. You don't ever have electrical issues to worry about, no plugs or points to change, no carburettor to tune, and will actually start and run the vehicle (electrics included if you have a generator) with absolutely no battery. The injector pump that they use is a fully governed pump. This means that when you reach your desired speed, you do not have to move the throttle. The speed will stay the same when going up and down slight hills. I use it as a cruise control. The high compression of a diesel engine means that when you go down a hill, you very rarely have to use the brakes. You actually have to press the accelerator as all the other cars are braking. As for the noise, when you get up to speed, you can't hear the engine over the normal road noise anyway.
Aaron.

Originally Posted by Aaron IIA

I run a 1962 IIA 109 traytop 2.25 Diesel as my everyday car. It may appear a little slower than a petrol off the line, but a petrol will only be quicker by burning lots of fuel. Once up to speed, I find that it has about the same amount of power as a petrol. I usually am in top gear by about 25 mph, but you can take this quite easily down to 20 mph. The torque is fantastic. The engine will pull at low speeds, so low that other engines will not even idle that low. I just spent the better part of a week in the Flinders Ranges. Lots of nice steep tracks. The engine would happily work right down to when you could quite clearly hear each power stroke. The fuel consumption was about half that of the petrol that came along with me. When set up right, they are fantastic. You don't ever have electrical issues to worry about, no plugs or points to change, no carburettor to tune, and will actually start and run the vehicle (electrics included if you have a generator) with absolutely no battery. The injector pump that they use is a fully governed pump. This means that when you reach your desired speed, you do not have to move the throttle. The speed will stay the same when going up and down slight hills. I use it as a cruise control. The high compression of a diesel engine means that when you go down a hill, you very rarely have to use the brakes. You actually have to press the accelerator as all the other cars are braking. As for the noise, when you get up to speed, you can't hear the engine over the normal road noise anyway.
Aaron.

well that's the sort off rap that would sell me! now i'm kickin myself a little, as i just bought a petrol motor today... haha nonetheless, i'll get my apprenticeship in mechanics whether i rebuild it, or just dismantle and learn. by the way, how much do you think a 2 1/4 ltr motor would weigh? tomorrow i have to get it out of the back of my ute...

You would want to have four very muscly blokes, or six standard men. I would strongly suggest a chain block. I re-enforce my shed roof with props whenever I lift or change an engine.
Aaron.