[vhgmcbuddy]

I have posted a link to the very useful Zeus tables for identifying thread types, drilling and tapping sizes etc here is an image or two of my copy.
Sorry about the orientation but they were OK when they left here!

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[vhgmcbuddy]

A set of thread gauges PLUS a set of Roebuck ZEUS Tables will enable you to identify just about any thread. The tables are also a mine of information about drilling and tapping sizes etc

[vhgmcbuddy]

Where do the bolts fit?
I have a Mk 1 gearbox and a roto-box
The gearbox is very heavy and is going to the scrap man
Free for collection Sheffield

[vhgmcbuddy]

Purchase a set of thread gauges (see pic below). I have this set which covers Whitworth and Metric threads. I also have another set for UNC/UNF. They normally cost about £5. I never enter the shed without mine!!

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[vhgmcbuddy]

I have some Clifford parts books which may state the thread size.What model Clifford is it and where on the machine does the screw(s) fit ??

[vhgmcbuddy]

The engine very occasionally will now burst into healthy life but stop after a few seconds otherwise it won’t start

Spinning it with my electric drill shows that spark voltage is only 4kvolts. Seems far too low to me. Apart from a new mag coil (25055) is there any cure?
And if not where can get a good one from?

[vhgmcbuddy]

Thanks Charlie. I knew it might be complicated, but not that complicated.
The replacements were UNC and to be honest I was just taking a stab in the dark.

What would be the easiest way to identify the one I have? Is there anywhere I could send one to to be matched? Sorry for all the questions.

[vhgmcbuddy]

Alan

Thank you for the encouragement. I will probably wait until the sun shines for photos.

Got the new seals and bearings. just need to find a safe method of unscrewing the dog so I can change the oil seal then the basic mechanism can go back together after paint. The rotor box has had a very hard life looking at the tines and the bearings were gone as it looks like no oil in the chain case for a long time. The dog itself is in good condition but I suspect has been impacted on when hitting stones. Tried some big stilsons with a Mole grip on the gear but no luck so far. I think I may need to revert to the blowtorch but worried about too much annealing on the hardened parts. I have heard of these needing changing regularly, anyone with experience got some advice?

[vhgmcbuddy]

Thank you both for your help. Pretty sure now that it is a ‘T’ as Chris’s clues all match, and MERL (thank you Charlie) are going to let me have the manufacturing date.

[vhgmcbuddy]

Sound like a Model T

A model TS has guards over the axles protecting the clutch. TS models you have to pull the clutch lever up to make the machine drive. Model T you have to drop the lever down. These have internal Clutch & is narrower than a TS model

R means you have ratchet drive on the axles so you can steer the beasts

I had 20 Allen Scythes at one point!! Now just paper work as easier to store!

Chris

[vhgmcbuddy]

Thanks, you are a life saver for my machine

[vhgmcbuddy]

Timing data etc
https://www.dropbox.com/s/9xr8b7gkavl2x4e/Villiers%20lightweight%20data0001.pdf?dl=0

Sorry, had assumed that you would find the marker on the back plate.

[vhgmcbuddy]

Many thanks for this. It certainly looks a lightweight. Does it have a numbertype other than 512/515 there is plate on it saying 103E I think
The timing info was useful but didn’t give the actual values for this engine. I think the data is on page 7. Any chance of sending ?

[vhgmcbuddy]

Looks like a Villiers Lightweight, see if this helps
https://www.dropbox.com/s/6w8hkrr7k14y8od/Villiers%20Lightweight%20overhaul0001.pdf?dl=0

EDIT sorry it won’t!! I’ll sort something else out.

This should!
https://www.dropbox.com/s/gnqkmtpxpx6yay9/Villiers%20Lightweight%20ignition0001.pdf?dl=0

[vhgmcbuddy]

thanks for the help will order a switch in the morning a process of elimination i suppose.

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