Stuart 2 stroke

Discussion in 'Identification' started by marshall, Nov 9, 2011.

  1. marshall

    marshall New Member

    Afternoon people! It would appear that I have done a deal for a little Stuart engine, which on going to view it, provides a bit of a conundrum... Looks a little bit like a P3, but the only lettering on the crankcase side is "Stuart" with the numbers "950" below. Has an odd exhaust arrangement, with a pipe to a cast expansion pot below. EIC magneto on an aluminium timing case, governor assembly also on timing case. There will be pics to follow when I have collected it in the daylight! What do we reckon? No number plate, so I will look for numbers when I get it home... Matt G
     
  2. Skankin_giant

    Skankin_giant Well-Known Member

    Hello,

    there is some odd stuarts out there:

    [​IMG]

    Has it got a flat head or one like pictured? bellow is a Advert for the C 300W set.

    [​IMG]

    Always fancied a early Stuart 2 Stroke, they always alluded me! Look forwards to the Pictures.

    Cheers Steve
     
  3. marshall

    marshall New Member

    Morning Steve, the cylinder head doesn't look like either of those pictured, it looks like a P3 cylinder head, and the base mounting looks like the P3 three bolt base... The exhaust is what intrigues me most, it is an angled boss on the bottom curve of the water jacket, with a pipe down to an expansion box, not the traditional Stuart cast iron pot on the side of the barrel. Pics should be up on Saturday... Matt G
     
  4. Skankin_giant

    Skankin_giant Well-Known Member

    Hi Matt,

    The top one is a Normal P3 head, just a different magneto/carb/exhaust set up, stuart seem to have made a few special requirement engines, AFAIK pre war (WW1) engines had the flat cylinder head, they started production of the P3 after the war.


    Im a bit of a stuart fan, had most of the common engines, as well as a flattie, the P3 (as well as the K1 and Diesel) keep eluding me, so interested to see anything stuart turner.

    Cheers Steve
     
  5. marshall

    marshall New Member

    Evening all, thanks for your patience whilst I got the little beastie collected. Herewith attached some photos of it, sorry for the poor quality, but I hope good enough to identify it... I am now leaning towards it being a P3, but I cannot find any numbers to identify it absolutely. I've had a look round the edge of the head and barrel, any ideas where else it might be? Assuming it is a P3, what size/type of dynamo would have been supplied with it? All help gratefully received.......
     
  6. Skankin_giant

    Skankin_giant Well-Known Member

    Hello,

    Now that is a interesting thing, I have seen a engine with similar castings, which belongs to Smenkhare, not sure if he is on here but is on other forums.

    [​IMG]

    [​IMG]

    I have dropped him a PM with a Link to this thread, might be able to help each other.

    I have to say im a tad jealous! :mrgreen:

    Cheers Steve
     
  7. petternut

    petternut Administrator

    BTW Steve
    Superb tribute to your Grandad.

    cheers
    Roland
     
  8. Skankin_giant

    Skankin_giant Well-Known Member

    Thanks! Im glad not only I enjoyed it, most the hard work was undertaken by Eric.

    Cheers Steve
     
  9. marshall

    marshall New Member

    Evening Steve, just a quick note to say the engine in your pictures isn't just similar castings, it is damn near identical!! Matt
     
  10. Numpty1

    Numpty1 Member

    Its a Stuart type W2. A friend has one, see below. I believe most were supplied in kit form, hence variations.

    [​IMG]
     
  11. Skankin_giant

    Skankin_giant Well-Known Member

    Ah I must have the W2 confused with something else, I thought this was the W2

    [​IMG]

    note to self: read more.....

    Cheers Steve
     
  12. marshall

    marshall New Member

    Well, that answers quite a few questions in one go! The engine is mounted in a nice steel angle frame, on a steel bedplate, which all show signs of being model engineer built, frame is riveted and whitworth bolts. The timing case is bolted on where the magneto would normally be fitted, and the governor is driven off the same drive. The magneto has been mounted on a bracket bolted to the cast base, and this shows definite model engineer parentage, being BA bolts for fitting! It also has a nice little homemade fuel tank, and a real work of art in the form of a multitube brass and copper radiator! I have been told that this engine came from a house in Harting, where it was part of a lighting set. If it was supplied as castings, that would explain the lack of serial numbers... Any ideas when the castings were available from/to?
     
  13. Numpty1

    Numpty1 Member

    Steve, That engine is the 1/2hp. Dont think it ever had a type designation.

    All sounds lovely. Will make an interesting exhibit. Is that Harting in Sussex? As for dates PK's A-Z states introduced around 1936.

    HTH

    Mark
     
  14. marshall

    marshall New Member

    Yes, that's the one, Harting, between Chichester and Petersfield... Looks like the plan of keeping it "as found" is the best one, will be looking for a suitable dynamo in the near future... Matt G
     
  15. petternut

    petternut Administrator

    Don't let the BA fool you. Many old engines used BA. For example the Petter M mag studs and the gear set-screw. A member of the Petter family was high up in the B.E.A. (British Engineering Association) sucessor to the B.A.

    cheers
    Roland
     
  16. Skankin_giant

    Skankin_giant Well-Known Member

    Mark,

    thanks for the education.

    Matt,

    Will be nice to see, some people have all the luck! :mrgreen:

    Cheers Steve
     
  17. marshall

    marshall New Member

    Thank you all for your contributions gentlemen, hopefully it will be out and about next season! Steve, I may have something of interest to you... I'll PM you.
     
  18. smenkhare

    smenkhare New Member

    Hi, Matt, Hi, Steve. Well, I'll be bothered! It does look like mine except the port I'm using as the carb port is inclined at 45° and the other (about 1.5" and not inclined) I'm assuming is the exhaust. Am I wrong?
    Matt you said you have 3 base fixing screws, I have 4 and the cylinder casting was not machined to allow the use of hex bolts so I've bought socket screws for them, plus studs on the head with brass nuts.
    I don't have a magneto housing and I had to machine the flange to pass over the boss on the crankcase. The crankcase is sealed by an ali plate held in place by 8 6 BA countersunk screws.
    The engine looks a bit different now, I'll try to get some pictures up in a couple of days. We only got home from Egypt yesterday lunchtime, so I'm busy with other things.
    Thanks,Steve, for putting me in touch with Matt

    Jim.
     
  19. smenkhare

    smenkhare New Member

    I just went into the garage to take some more pictures. Memory full. I'll have to do some housekeeping!
    I checked the bas, the crankshaft has only screws fixing the base, forgot to check how many screws that has. It it clear from your pictures that mine is the same engine, I'll have to work out how to arrange the carb and exhaust. I'm trying to fix my Lucas MA1 magneto, it's rewound but no spark.
    I'm busy at the moment fitting a DRO and power feed to my chinese milling machine so that will all have to wait.
    At least I now know what I have, thanks to yo both for the info.

    Jim..
     
  20. marshall

    marshall New Member

    Good morning Jim, looks like we both have the same engine, with regard to the ports I would say that the angled port at the base of the barrel is the exhaust, simply because that is how it is arranged on mine. and the amount of carbon buildup and the fact the previous owner had it running would point to that being the correct setup. I have not touched mine yet, other than to tip some diesel down the plughole to unstick the rings/piston... hopefully will get a moment to look at it over the Christmas works shutdown. Nice little engine though, and I very much doubt there are two the same!!! Will be interested to see pictures of how your restoration is coming on, might spur me into action. Good luck, Matt
     

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