Model Engine Maker

Help! => Specific Engine Help => Topic started by: Hagar on November 05, 2017, 03:15:12 PM

Title: What kind of fuel for a (future) tiny 4 stroke engine ?
Post by: Hagar on November 05, 2017, 03:15:12 PM
Hi everybody,

I'm studying my first IC engine. I chose a one cylinder 4 stroke engine.
Bore will be 14mm. Stroke will be 12mm. A very small thing but that's what my workshop is for.

Ring should be a Viton seal. I've read this solution works.
Piston is aluminum and sleeve is iron cast.

My question is : what kind of fuel should i use to make it run ?
Must i add any oil to ensure a good sliding wet ring ?

Thank you
Title: Re: What kind of fuel for a (future) tiny 4 stroke engine ?
Post by: b.lindsey on November 05, 2017, 03:18:27 PM
Hagar, over here in the States, many folks use Coleman fuel with something like 2% oil (I prefer Marvel Mystery Oil). I am sure some of our UK and European members can point you to the equivalents in your area.

Bill
Title: Re: What kind of fuel for a (future) tiny 4 stroke engine ?
Post by: RayW on November 05, 2017, 04:34:05 PM
I have just purchased a litre of Coleman equivalent fuel made for Primus, the camping stove people.You should be able to find it at most camping or outdoor equipment shops. Expect to pay about £8 per litre. The advantage over petrol is that there is a lot less smell.
Alternatively, you could use either butane or propane with a suitable regulator.
Title: Re: What kind of fuel for a (future) tiny 4 stroke engine ?
Post by: Hagar on November 05, 2017, 08:02:33 PM
Coleman fuel seems to be a good refined gasoline. This trade is not available, here in France. :'(
I think a high quality fuel for house stove should be very close to Coleman fuel. It's easy to find...

So, 2% is the rate for oil added. A 2 stroke engine oil of course.

Thank you for your answers.
Title: Re: What kind of fuel for a (future) tiny 4 stroke engine ?
Post by: Jasonb on November 05, 2017, 08:12:11 PM
Aspen fuel is another option, does not smell like pump gasoline

https://www.ebay.fr/itm/ASPEN-4-FUEL-5-LITRE-5L-4-STROKE-LONG-LIFE/272404442716?hash=item3f6c91ee5c:g:YxIAAOSwyQtVw221
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