powerfab 1250 engine swap

[johnnymitch]

I have a 80s powerfab 1250 360% digger with a honda GX340 petrol engine, I would to fit a diesel engine in it but I don't know what end the crank shft has nor what engine would be best, single cylinder I was thinking air cooled any sugestions.

[Muz]

I have a 80s powerfab 1250 360% digger with a honda GX340 petrol engine, I would to fit a diesel engine in it but I don't know what end the crank shft has nor what engine would be best, single cylinder I was thinking air cooled any sugestions.

No but I have a question .... why ? ... you can't polish a turd

[johnnymitch]

No but I have a question .... why ? ... you can't polish a turd

Yes you can, put it in the freezer for 2 days, get it out and it will polish, dont take to long about it or you will be back at sqare one.
The reason is I want it for work in my garden and I like them.
I have 2 other diggers a volvo ec15b 2005 now that is a pile of shite in 10 month nerver dug a hole and currantly having a new engine fitted, IHI 7gx works all day but weak as a kitten compared to the powerfab and the same size, but basicly I like the powerfab

[bigmike]

Yes you can, put it in the freezer for 2 days, get it out and it will polish, dont take to long about it or you will be back at sqare one.
The reason is I want it for work in my garden and I like them.
I have 2 other diggers a volvo ec15b 2005 now that is a pile of shite in 10 month nerver dug a hole and currantly having a new engine fitted, IHI 7gx works all day but weak as a kitten compared to the powerfab and the same size, but basicly I like the powerfab

What about the engine speeds , would have thought the petrol would run a lot faster than the diesel . If so what effect will it have on oil pump ?
Just thought i'd throw that in as something else to consider !!

[johnnymitch]

it is doing about 2500 rpm with the honda engine, so similar to diesel, it is the shaft shape and size I am concerned about

[ian2008]

The Honda has a variety of shafts available strait, taper or threaded.
You will need to measure the shaft and see if strait or taper ( the most common Options)
The strait shaft is 1" diameter with a 7/16-20 UNF thread in the end.
Two tapers available 2 1/4" per foot and 1in5.
There are several small diesel engines out there that would fit in.
Regards Ian

[v8druid]

No but I have a question .... why ? ... you can't polish a turd

JCB managed it

can't polish a turd but ya can roll it in glitter .jpg
well they rolled it in glitter anyway