Allis-Chalmers G226 gas for startup, runs on kerosene

mudflap123

New User
Can an Allis Chalmers G226 engine power unit designed to start on gasoline and swap over to kerosene for general duty be run on gasoline continuously? Will it damage the engine? Does the engine need to be modified to start and run continuously on gasoline?
The engine was originally mounted to an irrigation pump, it is now being used on a sawmill.
 
One of my tractors has a small tank for gasoline. It is for starting the motor, when the motor is warmed up it is switched over to kerosene which was called distillate. almost the same. I run that same tractor all day on gasoline. So to answer your question. It makes no difference, as I see it. Stan
 
Back in the day Distillate and Kerosene where not he same but to different types of fuel. Distillate from what I have been told was closer to home heating fuel and not as smelly as kerosene
 
We use to have what they called tractor fuel; is that what they're talking about? Tractor really had to be really warmed up. poor grade of fuel. didn't
run it except when hot and no money to buy decent fuel. some gas stations would cut gas with it to sell cheaper fuel!
 
There might be a good chance that it was overhauled in the past and may have gas only pistons in it now as they will boost the HP.
 
Compression ratios on the original factory engines were: 4.75 to 1 on the distillate engine and 6.45 to 1 on the gas engine. Also the exhaust pipe mount may have been
different. On the WCs there were two different exhaust mounts, one with a big K on it, the other with a big G. Is the reason you are wanting to run on gasoline an attempt
to get more power out of it? To do that, it would be better to have the high compression pistons. A good place for you to post this question would be on the Allis Forum.
 
If this really is a "G226", as opposed to a "W226", it's a late version of the engine. Compression ratios had been increased several times by then.
Unfortunately, looking quickly, I don't find any specifics on this engine.
 
I forgot to post that this is a 68-70 model G226 engine, so would this model G226 have a higher compression suitable to run full time on gas. I have not run a compression test on this engine yet. The reason is kerosene is $4.19 at the local gas station and gas is about $2.19 a gallon now. Purely economics, but would the engine make more horse power on gas or kerosene?
 
If 68-70 refers to the year made not likely to be made to run on kerosene and is a gas type engine ONLY
 
This irrigation pump with the G226 engine came with a small gasoline tank and a large tank for kerosene and instructions for start up on gasoline and swap over to kerosene.
 

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