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Villiers Mk10: Serial No. 522/182290

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Villiers Mk10: Serial No. 522/182290

Post by Dougal on Tue Jan 24 2017, 15:59

Here's my little Mk10.... I bought it as a £50 lot at a local auction which included a load of BSA motorcycle brake spares and drive chain - I sold the BSA stuff on E-Bay, meaning the engine was about £30 - not bad for a wee project. It's complete, apart from an exhaust silencer.





Doesn't look as if there are any cracks/external damage.

The engine was seized when purchased so I removed the spark plug and squirted in some WD40; after soaking for a couple of days, the piston freed up.

Next I checked the spark - which was very strong (jolted myself), so the magneto and coil are good.

There is very little compression (by feel) so yesterday I took the valve cover off, which showed the exhaust valve is stuck open - squirted in more WD40, but haven't checked it yet. I think I'll just abandon the quick start attempt and get down to stripping/re-building....

As I'm new to stationary engines, I wanted to check a couple of things......

(a) the green pull chord - was that an aftermarket option (it does say Villiers on it)? Maybe someone fitted it from another engine......

(b)
What is the metal contact thingy that I've highlighted in this photo?

(c)
What is the function of this ball valve shown in this photo? It moves in and out as the crankshaft rotates.... Is it a crankcase breather?

(d) where's a good place to get an original exhaust silencer? I'd prefer an old one, even if it needs to be repaired.

Thanks!

D. cheers

Dougal
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Re: Villiers Mk10: Serial No. 522/182290

Post by Woodsman on Tue Jan 24 2017, 16:25

a) I think you're correct
b) Cut off switch - shorts LT side of coil to earth.
c) Correct again
d) more tricky. I used to get mine from http://www.lsengineers.co.uk/
but I can't find the pepper pot type today. They do very occasionally appear on fleabay

Good luck

EDIT If L&S can't help you could try here:

http://www.villiersparts.co.uk/exhausts.html

A bit more expensive, but beggars can't be choosers. Or keep an eye on fleabay - they come up now and again.

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Re: Villiers Mk10: Serial No. 522/182290

Post by Dougal on Wed Feb 20 2019, 19:47

It's been a while since I posted, as I moved on to other things, but I've been doing bits and pieces on the Mk10 off and on..... I stripped it down. The lack of compression was down to a sticking exhaust valve and stuck oil control and top compression piston rings. Some photos of completed components (after stripping/cleaning/de-rusting/polishing/refurbishment) now follow.....

Air Filter


Carburetter (V-Type)



Manifold

Governor lever

Petcock (Ewarts, may need new cork)

Fuel tank cap

Fuel tank straps/fasteners


Sump

Conrod & Piston (minor wear on the shells and will need to buy new rings)




Last edited by Dougal on Wed Feb 20 2019, 22:00; edited 6 times in total

Dougal
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Re: Villiers Mk10: Serial No. 522/182290

Post by Dougal on Wed Feb 20 2019, 19:50

More photos soon...

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Re: Villiers Mk10: Serial No. 522/182290

Post by Dougal on Wed Feb 20 2019, 22:10

Cylinder head and valves...

Before




After



The exhaust valve shows excessive pitting on the stem, where it has been stuck open..... I think both valves will be okay once re-ground into their respective seats.

Dougal
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Re: Villiers Mk10: Serial No. 522/182290

Post by Woodsman Yesterday at 09:26

I think that's what's called 'polished to within an inch of it's life' - do you have shares in Brasso?  Very Happy Very Happy

Now you need something for it to drive. Keep up the good work.

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Re: Villiers Mk10: Serial No. 522/182290

Post by Robotstar5 Yesterday at 17:27

It looks too nice to hide the parts inside an engine, fix all the components to a display board? Very Happy

Stuart.

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Re: Villiers Mk10: Serial No. 522/182290

Post by chiefy Today at 10:35

Hi Dougal,
Another Villiers i love em they are such a robust little engine i think they deserve a better following,good luck with the refurb.
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Re: Villiers Mk10: Serial No. 522/182290

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