Parts mainly for Speed 25 & 4.3, but some also suitable for other Speed models. All parts are good used condition & serviceable unless otherwise stated. Images available for most items by WhatsApp (preferred) or email. Prices are for collection in person or by your courier from Kingston Upon Thames. Postage at cost.
Engine
Set 6 used pistons 92mm for 4.3 incl. Gudgeon pins & rings. Flat top & compression height 65mm, total length 108mm - £150.
6 new old stock gudgeon pins. Length 2 7/8", diameter 22mm with chamfer for pinch bolts - £30
6 rocker cover retaining 'thumb screws'. 3 'T' shape & 3 round - £35 per set of 3 or £14 each.
10 of Sp25 used valve guides with minimal wear - £75
1rocker shaft with minimal wear. Believed to be Sp25 with rocker feed holes at 180 degrees - the shaft also has an additional feed hole for overhead oil spray? - £250.
17 rocker shaft return spring spacers 1/8" thick - £4 each.
6 of rocker shaft screw in end pieces - £4 each
Sp25 camshaft - £350
4.3 camshaft. Some wear on oil pump drive gear & inner 2 bearings show some ridging, otherwise serviceable - £200
2 of rear camshaft bearings. 30mm bore good condition. Believe suitable for Sp20, Firefly & Silver Eagle F & G - £30 each
2 of cam chain spockets (Sp25 & others), 1 with 2 woodruff key slots - £30 each
2 cam follower guides with broken thread at top but useable - £5 each
Cam chain tensioner assembly c/w sprocket, spring & ratchet, but no locating shaft - £200
Cam chain tensioner sprocket plus eccentric bearing housing, no spring or ratchet - £75
Cam chain sprocket only (for tensioner assembly) - £25
6 of camshaft front bearing bronze end float spacer plus 2 corresponding springs - £5 each
Crankcase oil filler cap. Bolt swivel hole broken but useable - £5
Auxiliary drive shaft bearing housing. 3 hole mounting & fits between crankcase & magneto support housing. Requires new bearing - £30
Bronze auxiliary drive shaft bearing support. Holds bearing for sprocket (24 tooth sprocket & splined drive included). Mounting bolts at 1 7/16". Part No.N13544 needs new bearing - £25
2 of auxiliary shaft drive sprockets, 16 teeth & 15mm shaft bore. 1 in good condition £15, 1 worn teeth free.
1 of auxiliary shaft drive sprocket with 19mm shaft, worn teeth - free
5 of advance/retard operating levers (clamp to stator tube) - £5 each
2 of crankshaft end nut locking plate - £5 each
30 of Alvis valve cotters - £20 per set (24)
1 of clutch shaft, believed Sp25. All splines VGC - £50.
Crankshaft vibration damper 7.5" with fan belt drive but missing inner rear flange and belt drive section missing 1.5" piece, but probably useable - £15.
1 of engine bellhousing chassis bracket to take rubber insert (restricts for/aft engine movement) - £5
Gearbox & CWP
2 rear of gearbox mounting brackets, bolts to chassis - £20 each
2 of gearbox mounting brackets (front) part no.N13698 - £20
1 of synchro gearbox input 'spider', good splines - £30
Engine to gearbox carden shaft & 'spiders'. Serviceable condition but some play on splines at one end - £50
Laycock de Normanville 'J' Type overdrive unit complete with front closing plate & rubber cush drive plus mounting bracket. Good working condition & was fitted to Sp20 - £700
New Crown wheel & pinion. 12/41 teeth (3.42:1) pinion shaft diameter 35mm - £700
Instruments/Switches/Electrical
Sp25 Speedometer - working order - £250
1 petrol gauge "0 ¼ ½ ¾ F" - VGC £40.
5 of dashboard Starter push switches - £25 each
1 of dashboard horn Loud/soft switches - £25 each
1 of dashboard choke switch plate with "Rich/ Weak" & 1" centre hole - £15
BTH 'change over switch', complete but untested - £100
Lucas fuse box model SF4, lid cracked but complete - £20
Brakes
Foot & handbrake adjustment assembly incl. lower arm for servo foot brake lever, bolts to chassis - £100
3 of handbrake release levers, require plating - £10 each
Complete handbrake lever assembly incl. mounting bracket & opera
Engine
Set 6 used pistons 92mm for 4.3 incl. Gudgeon pins & rings. Flat top & compression height 65mm, total length 108mm - £150.
6 new old stock gudgeon pins. Length 2 7/8", diameter 22mm with chamfer for pinch bolts - £30
6 rocker cover retaining 'thumb screws'. 3 'T' shape & 3 round - £35 per set of 3 or £14 each.
10 of Sp25 used valve guides with minimal wear - £75
1rocker shaft with minimal wear. Believed to be Sp25 with rocker feed holes at 180 degrees - the shaft also has an additional feed hole for overhead oil spray? - £250.
17 rocker shaft return spring spacers 1/8" thick - £4 each.
6 of rocker shaft screw in end pieces - £4 each
Sp25 camshaft - £350
4.3 camshaft. Some wear on oil pump drive gear & inner 2 bearings show some ridging, otherwise serviceable - £200
2 of rear camshaft bearings. 30mm bore good condition. Believe suitable for Sp20, Firefly & Silver Eagle F & G - £30 each
2 of cam chain spockets (Sp25 & others), 1 with 2 woodruff key slots - £30 each
2 cam follower guides with broken thread at top but useable - £5 each
Cam chain tensioner assembly c/w sprocket, spring & ratchet, but no locating shaft - £200
Cam chain tensioner sprocket plus eccentric bearing housing, no spring or ratchet - £75
Cam chain sprocket only (for tensioner assembly) - £25
6 of camshaft front bearing bronze end float spacer plus 2 corresponding springs - £5 each
Crankcase oil filler cap. Bolt swivel hole broken but useable - £5
Auxiliary drive shaft bearing housing. 3 hole mounting & fits between crankcase & magneto support housing. Requires new bearing - £30
Bronze auxiliary drive shaft bearing support. Holds bearing for sprocket (24 tooth sprocket & splined drive included). Mounting bolts at 1 7/16". Part No.N13544 needs new bearing - £25
2 of auxiliary shaft drive sprockets, 16 teeth & 15mm shaft bore. 1 in good condition £15, 1 worn teeth free.
1 of auxiliary shaft drive sprocket with 19mm shaft, worn teeth - free
5 of advance/retard operating levers (clamp to stator tube) - £5 each
2 of crankshaft end nut locking plate - £5 each
30 of Alvis valve cotters - £20 per set (24)
1 of clutch shaft, believed Sp25. All splines VGC - £50.
Crankshaft vibration damper 7.5" with fan belt drive but missing inner rear flange and belt drive section missing 1.5" piece, but probably useable - £15.
1 of engine bellhousing chassis bracket to take rubber insert (restricts for/aft engine movement) - £5
Gearbox & CWP
2 rear of gearbox mounting brackets, bolts to chassis - £20 each
2 of gearbox mounting brackets (front) part no.N13698 - £20
1 of synchro gearbox input 'spider', good splines - £30
Engine to gearbox carden shaft & 'spiders'. Serviceable condition but some play on splines at one end - £50
Laycock de Normanville 'J' Type overdrive unit complete with front closing plate & rubber cush drive plus mounting bracket. Good working condition & was fitted to Sp20 - £700
New Crown wheel & pinion. 12/41 teeth (3.42:1) pinion shaft diameter 35mm - £700
Instruments/Switches/Electrical
Sp25 Speedometer - working order - £250
1 petrol gauge "0 ¼ ½ ¾ F" - VGC £40.
5 of dashboard Starter push switches - £25 each
1 of dashboard horn Loud/soft switches - £25 each
1 of dashboard choke switch plate with "Rich/ Weak" & 1" centre hole - £15
BTH 'change over switch', complete but untested - £100
Lucas fuse box model SF4, lid cracked but complete - £20
Brakes
Foot & handbrake adjustment assembly incl. lower arm for servo foot brake lever, bolts to chassis - £100
3 of handbrake release levers, require plating - £10 each
Complete handbrake lever assembly incl. mounting bracket & opera
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