1.f Norton SOHC Timing Case & Crankcase Parts

1.f Norton SOHC Timing Case & Crankcase Parts
Norton SOHC Timing Case and Crankcase Parts

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SOHC LH Timing Side Mainshaft Nut - Manx

Product no.: 0078b A11/730M
- Timing Side left hand thread mainshaft nut. I had a small batch made like this, which were copied from one off a pre-war magnesium Manx engine I have. Not sure if this is original - but a bit lighter and they look nice! - Fits all SOHC engines - CNC machined from solid high tensile EN8 round bar (as high tensile imperial hexagon bar is getting very difficult to obtain)
£12.50 *

SOHC Oil Pump Securing Screw - Pair

Product no.: 0609 A11/732

Securing screw to fit SOHC oil pump - with reduced head.  Price is per pair

£7.50 *
In stock

SOHC Oil Filter for Crankcase Bevel Chamber

Product no.: 0075 A11/45

- Manufactured in high quality stainless steel, these items have very fined slots along their length along oil to pass through but trapping any swarth or debris - Screws into the base of the timing case on all post 1931 SOHC engines - Not easy to manufacture, which I'm afraid is reflected in the price, but they do look really nice

£25.00 *

SOHC Oil Filter For Crankcase Bevel Chamber - Reduced Head (Manx)

Product no.: 0075b A11/45B

- Manufactured in high quality stainless steel, these items have very fined slots along their length along oil to pass through but trapping any swarth or debris - Screws into the base of the timing case on all post 1931 SOHC engines - Not easy to manufacture, which I'm afraid is reflected in the price - For my own racing machines I tend to reduce the head of all the bolts, including this filter bolt, so I have made some of these for sale. They do not really save much weight, but they do look nice!

£27.00 *

SOHC Oil Filter (Dowty) Washer

Product no.: 0090 E5264

- Modern equivelant Dowty washer (outer washer is zinc plated steel, inner washer is neoprene). This washer is used behind the timing chamber filter bolt and also at the back of the rear cylinder crankcase mouth bolt (that has an oil feed)

£1.00 *
In stock

SOHC Norton Timing Chamber Paper Gasket (Each)

Product no.: 0085 A11/44

- High quality traditional paper gasket for all SOHC Norton timing chests

£3.10 *
In stock

SOHC Drive Side Mainshaft Nut

Product no.: 0079 A11/475

- Large right hand thread driveside nut, secures engine sprocket on taper - Fits all SOHC engines and early DOHC engines.  CNC Machined.  Price is Each.

£14.00 *
In stock
can be shipped within 10 days

SOHC Crankcase Feed/Return Oil Pipe Union (Original Type)

Product no.: 0246 A11/721

These are the unions that screw into the crankcase behind the timing chamber - it is the smaller 1/4" BSP side that screws into the crankcase, the larger side is 3/8" BSP and takes the distinctive large oil pipes fitted to Norton Internationals. 

£9.50 *
In stock

Crankcase Oil Pipe Union - AF

Product no.: 0246b A11/721-AF

This is the Union that fits into International and SOHC Manx crankcases for both Feed and Return. It allows for the standard 3/8" BSP SOHC Norton oil pipes to be connected. It is very close to original but is a modern item, and uses a larger spanner hex, requiring a UNF spanner. This is a cheaper alternative to the original brass union that I have made specially (Item no 0246), but as you only need to screw it in once this is not really an issue - item is still high quality and is cadmium plated. - Price is per each

£5.00 *

Crankcase Oil Pipe Union - Fibre Washer

Product no.: 0247 A11/721FW

This is the fibre washer that fits behind the oil feed/return crankcase union. Also fits behind the A11\878 rear cylinder feed shouldered nut

£1.20 *

Crankcase Breather One Way Valve - All Norton Singles

Product no.: 0248 A2/707

Correct (and as per original) 1/4" BSP 'One Way Valve' - as fitted to all Norton singles, including all SOHC, OHV and SV models - this item screwing into the recess just above the drive side main bearings, allowing the engine to breathe correctly

£20.00 *
In stock

SOHC Crankcase Union/Cambox Union/Breather Union (straight thru)

Product no.: 0248b A11/719

This is a faithful reproduction of the straight through union fitted to SOHC (and DOHC) cambox's for connecting the cambox oil feed pipe (fitted at top of crankcase and cambox), but also used as a front crankcase breather on many Inters and magnesium racing engines.  Finally it is also fitted as a breather union on the bevel chamber of magnesium racing crankcases behind the inner timing cover (while Inter crankcases instead employ a pressure telltale unit).  Copied from an original pre-war item

 

£9.50 *
In stock

Crankcase Breather (straight thru) - AF

Product no.: 0248c A11/719-AF

This is modern replacement for the straight thru breather used on Norton crankcases and timing cases - but uses AF Hex (not Whitworth) - if you are not worried about originality!

£5.00 *

Crankcase Breather - Fibre Washer

Product no.: 0249 A11/719FW

Surprisingly it is very difficult to find good quality vulcanised (red fibre) washers to fit 1/4"BSP fittings. These red fibre washers are of the highest quality (from a specialist manufacturer) and have just the right external diameter - see listing for details

£2.10 *

Oil Tank Union (without gauze)

Product no.: 0248d A11\292
This is the oil tank union fitted to many International\Manx oil tanks with the larger 3\8" BSP fitting on both sides (crankcase unions were smaller on the crankcase side). Please note - these do not have gauze filters fitted, which the 'Feed' side union would have had originally (I might make some of these in the future). Gauze can easily be added in by soft soldering.
£5.00 *

SOHC/OHV/SV Breather, One Way Valve, Sump Plug - Copper Washer- Pack of 3

Product no.: 0091b E5264-C2

- Copper washer suitable for 1/4" BSP fittings on most Norton SOHC/OHV/SV engines - i.e. One Way Valves, Breather Unions and Crankcase Oil unions. They can also be fitted to 1/4 BSP petrol taps if required. Sold as a pack of 3

£2.20 *
In stock

SOHC Pressure Release Adjusting Screw and Locknut

Product no.: 0243 A11/42+43
This is the oil pressure adjuster that sits behind the inner timing case. This is the adjuster used to regulate the oil pressure, used in conjunction with a stell ball and spring, which I also sell It is also supplied with the correct 'half nut' style locknut, and with all my parts that are visible, they are both manufactured from stainless steel. Price is for both items
£10.50 *

SOHC Pressure Adjuster Locknuts - Pack of 3

Product no.: 0243b A11/43
5/16" x 26tpi Half Nuts, as fitted to oil pressure adjuster bolt, stainless steel. Pack of 3
£3.60 *

Pressure Release Ball

Product no.: 0244 A11/15
- 7/32" Ball used in the Pressure Release Mechanism behind timing case. - Note : I find it a good idea to keep a few of these spare as if the adjuster comes loose and drops out, these balls are always lost. I alleviate this by selling a minium qty of 3
£1.80 *

SOHC Pressure Release Ball Spring

Product no.: 0245 A11/16
- This spring retains the 7/32" ball on the Pressure Release adjuster, fitted behind the timing case. Made to original pattern
£1.80 *

Cylinder Feed Bolt Adjuster Screw

Product no.: 0259 A11/40

This is the adjuster screw that controls feed of oil to the barrel, through the rear cylinder bolt - Exactly as per original, but much prettier in stainless steel

£8.50 *
In stock

Cylinder Feed Bolt Adjuster Screw Nut

Product no.: 0260 A11/41

This is the special reduced head nut, that acts as a lock nut for the adjuster screw A11/40 - Just as per original, but much prettier in stainless steel

£1.60 *
In stock

SOHC All Models - Timing Case Mainshaft/Bevel Shim - Various Sizes (Each)

Product no.: 0264 A11/46c

- Essential when rebuilding your engine to ensure that the mainshaft bevel has the correct backlash and position in relation to the lower vertical bevel gear, these mainshaft shims fit between the timing side main bearing and the mainshaft bevel gear - This shim is used once the crankshaft has been shimmed and you are fitting the lower bevel gears. This is for a single shim in one of the following sizes: 

0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.

£2.80 *

SOHC All Models - Timing Case Mainshaft/Bevel Shim - Set of 5 Shims

Product no.: 0264b A11/46a-s

- Essential when rebuilding your engine to ensure that the mainshaft bevel has the correct backlash and position in relation to the lower vertical bevel gear, these mainshaft shims fit between the timing side main bearing and the mainshaft bevel gear. This is for a complete set of 5 shims in the following sizes : 

0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.

£13.00 *
In stock

SOHC Cylinder Feed Bolt Oil Adjuster - Copper Washer (Each)

Product no.: 0276 A11/40C

This is the Copper washer that fits behind the cylinder feed bolt nut on all SOHC engines.  Price is each.

£0.75 *
In stock

Cylinder Feed Lubrication Bolt - Lipped Nut

Product no.: 0277 A11/878

- This lipped nut is milled from solid round stainless bar and much improves appearance, particularly as the original are normally quite chewed. Not the cheapest of nuts due to the fact that it has to be machined from solid round bar. Update Dec 2010: New stock of these now in, CNC machined and beautiful to look at.

£8.50 *
In stock

Cylinder Feed Lubrication Bolt

Product no.: 0316 A11/38

This is the multi-stepped crankcase bolt that is drilled through it centre to feed oil to the back of the crankcase wall, as well as providing a means to meter the feed of oil to the cambox

£28.00 *
In stock

Cylinder Lubrication Feed Bolt Kit

Product no.: 0317 CYLFEED1

This kit of parts consists of the Cylinder Feed Bolt (A11/38), Cylinder Feed Lipped Nut (A11/878), Camfeed Adjuster Screw and nut (A11/40) + (A11/41), Adjuster screw washer (A11/40c), lipped nut Fibre Washer, 3/8" Stainless nut (for the drive side) and steel washer and fibre washer to go behind that (although this may be replaced with either Dowty washer or copper washer depending on what is in stock at the time. It also comes with instructions for setting this kit up for optimum oil setting. Buying these items as a kit provides a discount over buying the items individually

£45.00 *
In stock

Timing Side Mainshaft \ Camshaft Woodruff Key

Product no.: 0356 A11/797
This is the Woodruff key that fits on the Timing Side mainshaft key and retains the mainshaft bevel. It is also the same woodruff key that is used on the SOHC camshaft to retain the cams (both keys are the same). This item is for a pack of 3 woodruff keys
£2.20 *

Norton 15 Tooth Magneto Sprocket - Engine Side

Product no.: 0391 A2/79

This item is the 15 tooth engine sprocket that drives the chain to the magneto sprocket, it fits on the end of the oil pump drive gear. These items are just the same in profile as original sprockets - the engine side sprocket being a flat profile sprocket, (while the magneto side sprocket is recessed), just as per originals. 

£23.00 *
*
Recommended Retail Price, plus delivery
31 - 60 of 86 results