1937 EXCELSIOR MANXMAN 350 RACER

OLYMPUS DIGITAL CAMERAOLYMPUS DIGITAL CAMERAOLYMPUS DIGITAL CAMERAOLYMPUS DIGITAL CAMERA

Engine No CXAR108. Frame NO. MH101

This is a very rare machine and one of only 11 pukka racing 350 2 valve machines built for the 1937 TT. The frame is the next number to the Show Bike in Paul Ingham’s excellent Excelsior book. It is one of only 3 or 4 built into the new style frame with the long racing tank and solid rear sub frame and would probably have been used by the factory for testing before release. Although fitted with a later hairpin spring head, it comes with the original coil spring bronze head. Brought to WA in 1938 by the Australian dealer, it was the bike used to set a 350 State speed record. Correct engine, gearbox and frame numbers.

All mechanicals have been rebuilt. A very rare and desirable machine. More photos available on request

SOLD $30,000

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1937 OK SUPREME 350 ohc SILVER CLOUD

right.2leftright rear closishhandlebarstail lamp.sm

FRAME NO 23099. ENGINE NO WS 315

With a production period of only 4 years (between 1935 and 1939), the cammy OK Supremes are extremely rare. Known as both Silver Clouds (350) and Pilot (250), only around 360 or so were ever built including roadsters, trials bikes and racers. Most surviving cammy OKs have been converted to racers. Original cycle parts are the proverbial rockin’ ‘orse manure. Perhaps as few as 3 machines survive in original factory road trim worldwide.
This bike was largely unmolested when I acquired it; almost an oily rag barn find. It was running but very noisy. I disassembled it, inspected the internals, reset the bevels and reconditioned the magdyno. It is on standard bore with no wear in the bore. The bigend feels good. Valve seats have not recessed. The gearbox was also inspected and found to be in excellent condition. Chains, sprockets, cables and tyres are (probably) original. The petrol tank has been repainted sometime in the distant past but almost everything else about the bike appears to be original largely retaining its patina earned over the last 75 plus years. A new exhaust downpipe was made in the time-honoured method of packing with sand, applying heat and bending by hand. A new back stand, plate holder, battery carrier and wet-soldered wiring harness were also made. Fasteners are original (cycle thread and BSF) and in mint condition reflecting the low mileage of the bike. I would say the rims would have been chromed originally. Should you want to paint and chrome, it was be the easiest restoration as everything is there is excellent order. I like it as it is showing its history. These overhead cam OK Supreme bikes are the rarest of Great Britain’s fabulous overhead cam fraternity. More photos available on enquiry.

$AUD25,000 SOLD

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NORTON SINGLE KNOCKER CAMBOX JIG

ce59b_sohc_jig.bsAn absolute must for anyone who owns a single knocker Norton. The sohc Norton cambox has a design flaw which makes it prone to not only breaking the thin but vital cam shield but ruining the square end of the camshaft. The panel cover holds the bearing in place. Removing this cover to inspect the cams, remove the camshaft or replace the bearings means the camshaft is only held by the bearing at the vernier bevel gear side.

Unscrewing the left hand nut is the problem. It works itself incredibly tight – I have measured over 250lbs per sq inch. The Norton Instruction manual suggests holding the square end of the camshaft in a vice while trying to undo the very narrow nut. 9 times out of 10, it cant be done. The usual result is the spanner slips or the cambox twists out of the vice ruining the square end with the spanner smashing the thin cam shield. And repairing that is hundreds of dollars.

My jig solves all the problems. Bolt the cambox to the jig, lock the jig into a sturdy and you can apply all the leverage you need without risking damaging the camshaft or the fragile shield. You can also turn it around to mesh the top bevels. Supplied flat for postage economy reasons. All parts supplied included 2 x 50mm 0.375 bolts and 2 x 100mm 0.375 bolts. Comes with instructions but you will need to get it welded.

Weight 2kg unpacked.
PRICE $90 plus p&p

ce59b_sohc_jig.2.bs

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NORTON CLUTCH LOCKING TOOL

82d49_norton_clutch_tool.1.bsFits all 3 spring Norton clutch from 1933 to 1969. Light and easy to use. Slip it into your clutch where it will lock against a footpeg and allow you to undo the clutch mainshaft nut with ease. If you ever service your Nortons gearbox or clutch, you’ll need this tool.

Supplied flat for postage economy reasons. All parts supplied included 6 x 0.25 nuts and bolts. The handle can easily be bent for the correct offset. Comes with instructions. Weight 600g unpacked.

PRICE $25 plus p&P.

82d49_norton_clutch_tool.2.bs

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1938 JAP HI CAM 250 MOTOR & CARB

OK right rear 850pxOK right front 850pxOK left rear 850px

Eng No. POH/O 59674/S

Extremely rare High-cam JAP engine based on 1935 works engines as fitted to TT Cottons, HRDs and OECs. The production versions were a last ditch effort by JAP to win custom from the smaller British manufacturers who were turning away from traditional outmoded JAP powerplants to Matchless.

So it was a modern engine with bolt-through cylinder, down daft carb and internal two-way oil pump. They reached the market in 1937 and were fitted to upmarket Cotton and OK Supremes machines as standard and other marques such as Montgomery and Coventry Eagle only by special order. To quote from JAP themselves. Valves, rocker gear and short push rods are fully enclosed, oil passing up from the rear off-side cylinder head stud which is drilled internally from the crankcase to a central standard in the rocker gear. From this point it is distributed to each rocker by a T pipe, the oil draining back to the crankcase through the single push rod tube that gives the appearance of the overhead camshaft design. The camshaft is chain-driven from the end of the mainshaft, a Weller tensioner keeping chain tension constant. The crankshaft is mounted on a roller main bearing on the drive side, and on the timing side a pressure-fed bronze bearing bush. The caged bigend bearing is fed under pressure from the dry sump lubrication system. Cylinder head and barrel is cast iron with single exhaust port and downdraft inlet port. In addition, the head is designed so there is a large air space between the valves and under the enclosed rocker gear. Reputedly reconditioned and external appearance suggests this could be so as nuts and bolts are in good nick which I consider to be a fairly accurate indicator of general condition. Crankcases in perfect condition. Chrome is great but some minor damage to the cast-in rockerbox (see pics) and very minor fin damage. The original Amal carburettor and float bowl which came with the engine are included. Magneto sprockets and chain are missing. These engines are extremely rare and desirable

SELLING PRICE $AUD3,000

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1955/59 ROYAL ENFIELD WORKS BIG HEAD ENGINE

Engine left rear 850pxEngine right front 850pxEngine right 850px

Very special genuine English Royal Enfield 500cc engine. Engine has sand cast Works type cases (as identified in a letter to me by Don Morley) which are different from standard pre-alternator cases. The outer timing cover narrows slightly as it reaches the magneto. The top 2 screws are closer together than the 2 immediately below. On standard engines, they are parallel. There are no engine numbers but crankcase halves have matching numbers and JS is stamped on rear of engine. It has the non-alternator short mainshaft. Head is genuine “Big” type with scrambles inlet port (not 1.5”). The engine has been built by an acknowledged marque expert who has been building racing Enfield engines for decades. Three modifications in particular to note are that 1) through bolts are 3/8” diameter (standard 5/16”) 2) conrod is Matchless but white metal bearings retained 3) modified breather system. Competition BTH magneto is fitted and much modified 30mm Concentric carb. New piston, bigend, main bearings etc etc. Everything possible has been either reconditioned or new British-made parts fitted. Engine is in a standard state of tune. Included is the extremely rare heavy aluminium rear mounting casting, kick starter and gear lever . Also new performance cams with Gold Star profiles, new adjustable cam spindles plus a genuine Workshop manual. Price is $6,500 (please bear in mind that your common or garden variety 500 Gold Star engine needing a total rebuild will cost the same if not more)

$AUD6,500 SOLD

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1937 VELOCETTE KSS MK2 350 ENGINE

Engine No 7448KSS engine right 850pxKSS Engine left 850pxFlywheels 850px

General condition is excellent. 99% complete. The only part not in any of the photos is the oil pump which is in the crankcases. The engine was complete and running before being dismantled some years ago. Worn parts replaced but the engine was never reassembled. The flywheel assembly pictured in box purpose built for supporting the delicate mainshafts correctly, has had a new bigend pin, sleeve and rollers fitted and trued to within factory specifications by a professional flywheel builder and long time cammy Velo owner. Valves, valve guides and seats, combustion chamber and the exhaust nut threads are in excellent condition although one mall corner of one fin has been broken off but in a very accessible location and so easily repaired. Inlet tract measures 1 1/16”. Standard piston in excellent condition c/w rings and correct fit for the sleeve (which will need to be honed). The rockers have been stellited and reground. KTT 17/8 cam is new. Main bearings look to be in excellent condition. Nuts and bolts all good. All castings are in very good condition and crankcase halves match.

SOLD $4,000 

 

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1951 NSW GP POSTER

a712a_gp_51.smCopy of original almost 60 year old poster restored by professional blibliographer. One of a series of 3. This is a copy available in several different sizes. Postage cost on application but they will rolled into a strengthened Autralia Post tube. I will combine to reduce postage cost where possible.

Payment options include Money Order (Australia only) or Paypal. A3 – $AUD25, A2 – $AUD75, A1 – $AUD100

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1951 NSW TT POSTER

c7d34_tt_51_smCopy of original 55 plus year old poster restored by professional blibliographer. One of a series of 3. This is a copy available in several different sizes. Postage cost on application but they will rolled into a strengthened Autralia Post tube. I will combine to reduce postage cost where possible.

Payment options include Money Order (Australia only) or Paypal. A3 – $AUD25, A2 – $AUD75, A1 – $AUD100.

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1938 VELOCETTE MK7

073a3_short_circuits_smOriginal 70 year old illustration restored by professional blibliographer. This is a copy available in several different sizes. Postage cost on application but they will rolled into a strengthened Autralia Post tube. I will combine to reduce postage cost where possible.

Payment options include Money Order (Australia only) or Paypal. A3 – $AUD25, A2 – $AUD75, A1 – $AUD100.

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