Le magazine et marché mondial pour les passionnés de voitures classiques, par des passionnés.
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The Exposed Valve Gear Mystery (update: 1924 Standard V3 11.4 HP)
Peter Ransom sent pictures of an engine he is trying to identify. Our first thoughts were Buick but then we found out the capacity of the cylinder was much smaller. It is a nifty little engine. So who can help Peter:
'Identification of this little engine has proved troublesome - nobody can say what it is! It's estimated to be around 1000cc. Clues that might be helpful include exposed overhead valve pushrods and rockers, engine and clutch/transmission running in the same oil, no fan or water pump. The letters SM are cast into the the block and head. The letter Z also appears on the block. Block and head are cast iron while the sump and timing cover are aluminium. It seems possible that the engine doesn't actually belong to the chopped chassis."
Publié:
mardi septembre 6th, 2016
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Commentaires
Inconnu
07 Septembre 2016, 23:05
Gents, thanks for your rapid response - so easy when you know the answer! The chap who owns the engine can now figure out what he wants to do with it.
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Inconnu
07 Septembre 2016, 10:11
Interestingly, there were other engines with long rocker arms or pushrods. I had a Horstmann light car in the 1950s, which had horizontal valves, in a detachable head, operated by long vertical rockers driven by a camshaft in the crankcase. The valve gear was fully enclosed, and always struck me as being very ingenious, but not very mechanically efficient. However, the car did run well. I believe Horstmann were the only company to have made cars in Bath.
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Inconnu
07 Septembre 2016, 08:32
Agreed. This is an English made Standard engine of around 1300cc capacity. From memory there is a casting date on the internal upper side of the engine.
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Inconnu
07 Septembre 2016, 06:50
This is an 11.4 hp engine and chassis remains from a Standard V3 model from about 1924.
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