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V11C engine

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V11C engine

Post  keith.hodgenia on Wed Aug 20, 2014 12:19 pm

Looking at one of the engines I have it seems to be from an industrial engine that runs in reverse, it has a pull start, the flywheel mag and drive pulley are on opposite sides to that expected on a motorcycle. The barrel has HB mark V11C on it, perhaps the HB is horticultural? Does anybody know if Villiers would have altered the port timing to suit or would such a basic engine happily run in either direction without any modifications? Thanks. Keith.
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keith.hodgenia

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port timing

Post  piston 197 on Wed Aug 20, 2014 1:38 pm

There is no need to alter the port timing on a Villiers 2 stroke to get it to run the other way, just the ignition timing has to be set before top dead centre when the engine is turned in reverse, ( in effect after top dead centre if the engine was turned conventionally) I am sure most of us have had a two stroke running backwards after backfiring at some time.
The Villiers invacar engines had a Siba self starter linked to 2 sets of points one timed either side of top dead centre, throwing a switch in the cabin caused the desired set of points to come into effect and the starter to turn in the desired direction, Thus you got a reverse gear, there was a switch linked to first gear so only first could be used going backwards , otherwise you could have had 4 forward and 4 reverse gears, allowing it to go equally fast in either direction !
The C series engine was used as a generator , mower and light agricultural unit as well as a motorcycle unit and yours is probably one of these
JH
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V11C engine

Post  keith.hodgenia on Wed Aug 20, 2014 2:17 pm

Thanks John that,s what I was hoping. It will make a good spare engine, as well as the Mills carb it came with a flywheel cover with the correct offset access hole, its all in good condition it can't have seen much use. If anyone wants to persuade Villiers service to make a batch of these covers I am willing to loan it as a pattern. Keith.
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flywheel covers

Post  piston 197 on Wed Aug 20, 2014 2:23 pm

Villiers services already make the flywheel cover with the detachable centre ( not the off set one) and that generally is a better bet as the access is greater, but they may be interested it's worth mentioning it to them ,although it may require new tooling and that is where the cost accelerates ?
JH
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V11C Engine

Post  MoscowFlyer on Wed Aug 20, 2014 9:38 pm

Hi Keith, what I have on the V11C engine. The V1C was a 147cc engine, and the first of that size that Villiers produced, it was a new series of models. As time went on they improved the engine, and called it the V11C, and then the V111C, they were all 147cc with a bore of 55mm and stroke of 62mm. They have a roller bearing big end, a long phosphor bronze bushes for the mainshaft. Post 1926, the carburettor is the lightweight, with jet No3 and needle taper 2 1/2. It states that this engine was for utility motorcycles and invalid chairs. The engine was introduced in 1922 with a prefix letter H, 1923 came the V11C with the prefix L, 1924 came the V111C prefix W, production of this engine ended in 1947.

As a matter of interest I have a hortcultural Villiers engine in the back of my garage, the number on the blind cylinder is X11-A, it has a bore of 66mm, the engine has an alloy cowl around it for cooling, and also has a lightweight carburettor. Mike
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engine id

Post  piston 197 on Thu Aug 21, 2014 6:11 am

Mike your XIIA engine will be 250cc the way it works is as follows
A 250cc
B 350cc
C 150cc
D 125cc
E 197cc
F 98cc
H either 225cc ( !H) or 250cc (2H)
K 50cc
L 175cc
T 250cc (2T,4T) or 325cc (3T)
This refers to model designation rather than engine No
JH
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V11C engine

Post  keith.hodgenia on Thu Aug 21, 2014 2:03 pm

Thanks for that Mike, the only info I have is Arthur Gent's fine book which has quite a lot in it. So I have complete engine and a spare 3 speed gearbox and clutch if I can find an early frame and forks I could have a Zaracheck clone to add to my collection. Any offers? Keith.
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V11C Engine

Post  MoscowFlyer on Thu Aug 21, 2014 5:57 pm

Hi Keith, just had a look in Arthur's book, and it's good to see we are both singing from the same hymn sheet. Below is an early Villiers ad, showing that their engines were indeed sold without carburettors. Mike

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