Stuart Turner 800 Gas Engine - finished!!

[valic000]

You can be very proud of your jewel.Fantastic work.A also have on my " to do wish list" building a hit and miss engine.There are nice casting sets on the market mostly in england....Or build compleet from scratch and make your own castings like "myfordboy" on the tube..It stays a wonderfull hobby!

[anthacdc]

great job!

[gwheyduke]

Good looking engine ! Sounds great also.

[simon19920]

Is it for sale? if not where do I buy it?

[enginebodger]

Hi, The engine is not for sale at any price I'm afraid. Your best bet is to keep a watch on ebay as they do come up occasionally.

Cheers

[pakkiaman2]

@simon19920 i sell a lot of engine even more beautiful :) but i'm italian

[empireuhren]

For sale:

See empire-uhren(dot)de/product_in­fo.php?info=p544_Stuart-Turner­-800---Gas-Modell-Motor.html

[empireuhren]

Great !

[sidecrank]

Tell me,as this is a gas engine with the third gas valve,why don't you run it on gas ? Thanks for the vid.

[enginebodger]

Hi,

'Gas engine' is really a generic term that can be attributed to gasoline (USA), petrol, natural gas or propane powered engines. This engine started life running on petrol, so that is how I left it. I have other engines that run on propane, but my preference is always petrol as I find it easier to work with and engines run better (in my opinion). I also think a scale petrol tank looks much better than a big propane cylinder stuck at the side of a running engine.

[sidecrank]

Yes,I can see your point.I have a 600 with just one inlet,so it has always run on petrol but I like the smell of engines running on gas!

[DustDevil098]

nice =D

[superfunnyman123]

how many hp dose that have

[enginebodger]

Hi,

The 1930 Stuart Turner catalogue lists this engine as 1/8th HP output. I suspect that running it on modern superior fuels it is a little higher than that.

Cheers.

[sickfitzwilliam]

What brand of coolant do you use

[enginebodger]

Hi,

I use a 2 - 1 mix of the cheapest ethylene glycol based antifreeze I can find. As one of the coolant's primary uses is to stop/reduce internal corrosion, and it is rarely in the engine for more than a few hours anyway, it is a waste using expensive stuff.

[tesla1961]

very nice

[enginebodger]

Thanks

[topheliflyer]

Lovely, I'm building a small IC engine myself at the moment & this has inspired me to hurry up & finish it!

[enginebodger]

Great stuff - if it encourages you to get more involved in this terrific hobby, then it was worth posting the video. Don't forget to post a video on here when it is running.

You may find my other video on ignition systems of interest, as some people find this the hardest area to master.

Cheers

[kode1303]

Very nice! I am an engine enthusiast trapped in the body of a no-engineering-skills-person. It bothers me!

[Bobbymitchell10]

I did not know sturt turner made gas engines and great job on the restoration thanks for posting!!!

[steamwally]

Thanks for the reply. Its interesting to know the history of this magnificent machine!

[steamwally]

Is this a model or just a small full size engine?

It may seem a stupid question but i realy dont Know the answer!

[enginebodger]

It's both actually. Around a 100 years ago when small gas engines were selling by the bucket load, there was a very limited electrical supply system and cheap electric motors did not exist. So if you needed a small power unit to pump water, power a lathe or drive a dynamo for lights in your shed, then this was your solution. This was in a time when the engineering skill needed to build one of these from castings was common, not so common in today's 'computer culture' unfortunately. Cheers

[mediumpimpn]

Awesome! How does the coolant system work?

[enginebodger]

Thanks. Cooling is by the 'thermosyphon' method - as the engine runs and water in the cylinder jacket warms up, it naturally convects upwards through the top cooling pipe and flows into the coolant tank. Cold water then flows from the bottom of the coolant tank through the lower pipe into the cylinder jacket to take it's place. This natural convection current continues as long as the engine produces heat.

Cheers.

[reddrryder]

Very nice Stuart 800 you have there and you have done a great job making it an exhibition piece. I do want one of those.

Gil

[enginebodger]

Thanks for the kind words

[jamespetts2]

Very nice - but what's that yellow thing at the back?

[enginebodger]

It's a fuel inlet/mixing chamber; the rich petrol mixture from the carb is mixed with secondary air before being drawn in to the cylinder. It was customary years ago that fuel components were yellow (even gas pipes today uses yellow as it's standard ID colour), red was used on rotating items, and the rest could be any colour that was deemed suitable.

Cheers

[jamespetts2]

Fascinating - didn't realise that! So this one has been converted from gas to run on petrol?

[enginebodger]

No, it has always been petrol as far as I'm aware. It was academic which fuel was used in an engine (petrol, gas, paraffin etc.), the primary components used to deliver the mixture would preferably be painted yellow to ease identification by a user. Obviously there were many companies who did not follow this tradition as it saved a few pennies on each engine if everything was the same colour. Kits that were machined from castngs would be painted whatever colour the builder liked best

[4Mengineering]

Lovely how you show the governor working

[mr4963]

That's a fine engine you have nice workmanship.

What is the bore and stroke?

[enginebodger]

Thanks for the kind words. The bore is inch and a half and the stroke is two and three quarters. It is basically a slow running, long stroke engine that was designed to 'plod' away for hours on end with the minimum of maintenance. Cheers

[mr4963]

Thanks for the info,I was thinking it might have been a 2 inch bore going with the robust design of the engine,

[nitro74cs]

Very good, excellent.

[kidthing1119]

nice!