1926 Rudge 4-valve 4-speed

I have attempted to reproduce the Rudge logo. PDF versions of color or black & white. No guarantees about quality or color matching, especially as I'm color-blind.

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The 4-valve is the head, the 4-speed is the gearbox. They were built from 1924 to1928.

The previous model used the famous Rudge Multi gearing, which was a variable diameter pulley arrangement for the belt-drive.

You need to treat a project of this magnitude as little self-contained parts.
I first had all cycle parts blasted and primed to stop further decay.
I have since had the cycle parts powder coated.
I sent the magneto away for repair, because it's specialist knowledge.
I am currently working on the clutch and gearbox.

From these photos, notice the external brakes (Rudge's ancestry was in pushbikes). In fact, lots of stuff is "external" - the valve gear; the oil pump. Mine is slightly different from this one in that it has lights and footboards (and is also not restored).

The 1926 Catalogue listed a 350cc & 500cc

4-valve head.

In 1925/26 the exhaust ports were parallel, and in 1927/28 they were splayed.
Note that the pairs of valves are parallel.
In 1928 Rudge then built heads where the four valves were radially located in the head. They used the fully radial arrangement until the demise of the company at the start of WWII, although some models had a mix of parallel & radial.

ML Magneto

Both before and after restoration shots are available.

Senspray carburettor

I have attempted to draw the Senspray. A PDF is available.

There are some photos of my Senspray in its current state.

The other two places I have found drawings are:
http://users.senet.com.au/~mitchell/bikes/rudge/html/1916feat.htm
http://www.oldengine.org/members/diesel/Technical/Carb24.htm