Three Petter S types |
A 5hp #202622. Although on non original trolley it does have an original cooling tank, blowlamp stand and waste oil or "Glop" pot (TM PT-E). The trolley might be the remains of original skids but if so its handles have been sawn off. The Glop pot is seemingly of the early type . Wrong for this engine but perfect for the 1923 engine below. The present oil pipe is rather too large and blows oil everywhere. Although not run for 18 years its has been dry (ish) stored and after a thorough check out and copious oiling was soon Pettering very happily in company with the other two. How's that for a rythmn section:-)
Update from David Edgington 15/11/2000: Originally supplied on 10/9/1928 but returned to the factory and rebuilt in January 1931. Subsequently sold to W.J. Vowells
Looking sad on the trailer , Running happily with the oil pot below, Detail of the blowlamp stand, Front on view.
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Petter S 5hp which is a real conundrum. It has serial 32856 which should make it a very early one from 1923. The numbers on keys and (crowned) flywheels bear this out. It retains the early fuel pump, cold start tube orientation, and blowlamp stand bracket position. Yet it has a crankcase casting date of 13.8.1924 and a Calibrater. This suggests it has had at least one major factory rebuild in around 1926 or maybe more than one? Its remarkably complete and original even down to the drip cover on the Calibrater. The Calibrater and fuel filter have been the subject of a past aborted restoration hence the bright green. There is no trace of the engine being despatched from the works up to early 1927. The governor housing carries at least 4 different timing marks so could it have been used as a fuel trial horse within Petters? Will we ever know?
Update from David Edgington 15/11/2000: Built in August 1923 sold to W.H.Deakin & Co. on 18/10/1923. Returned to the factory and rebuilt in November 1929. Then shown as going to Post als. Ideas for what that might mean are welcome.
The only major issue is a run big end caused would you believe by old oil gumming up the oilway in the crank! Now there's a little learn. Happily this has been fixed although the big end journal had to go 20thou u/S. The engine runs well and with a lovely sound. I have temporarily removed the 1924 VF from its original trolley in order to run the VS.
The Petter VS or S type is a hot bulb two-stroke semi-diesel which shares many components with the 5hp Petter VF or M type. It has Petter made jerk pump and fuel sprayer. The spray pressure is about 600 lbs/squinch.
pic1 pic2 pic3 pic4 pic5 Play sound file of start up and run pic6 on a run out at the club working weekend
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Meanwhile the 1934 VS8 (actually 8.75hp) has finally been completed and is running. That means it is out of the breakfast room:-)
Many thanks to: John Rose for selling it to me, to Ray Brown of Plymouth for quality work on the bearings, to SEP of Derby for a superb new gudgeon pin, to the Bradford Piston ring Co for speedy and high quality service, and to Philip Thornton-Evison for copious advice and support, and of course my wife Celia without whom etc. etc......I had a lot of help....
Pic 1 The base tank meets the trolley for the first time
Pic 2 Crankcase on base. Needless to say I used a hoist as this thing is heavy!
Pic 3 A side view showing: the jerk pump and hot bulb/tube
Pic 4 Close up of the Calibrater showing the resin repro drip cover that I made
Pic 5 The governer showing its cam on cam arrangement which varies the pump lift and timing. It works backwards if you start the engine the wrong way....with trouser browning consequences!
Pic 6 All together at last. After painting the face and rim of one flywheel I decided I didn't like it. Cooling system is a handy crate and a Lister D tank. However a friend has donated a nice tank for the final set up.
Pic 7 An end on view of it running with the VS5 behind to give some idea of scale. At present I find around 400rpm exciting enough and I suspect at its rated 660 rpm it might "lossock" a bit. The 8 weighs in at 12 hundredweight (1300 pounds) and the hot tube is at my eye height (5'7 1/2" :-) Once yet another friend screw cuts the thread (Thanks Tom) on a stainless steel cold starter tube I'll be able to run both together. Now thats what I call syncopation<vbg>
Pic 8 Set up with a 50vdc dynamo
pic 9 Running at Weland 2001
and to prove it runs Play sound file of start up and run
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