Crankcase & Crankshaft

For gaskets click here; engine plates, alternator parts click here; tie studs and crankcase tie bolts click here; oil pipes and unions click here; for alternators click here.

The Colt uses a built up crankshaft, which means that the big end, flywheels and mainshafts are separate components that are pressed together and retained by nuts. Wear takes place in the big end assembly, evidenced by up and down play but do not confuse this with side play. A fair amount of side play is acceptable, however figures for it are hard to come by and it is also expensive to cure. The only other problem likely to be encountered is wear on the shafts where the bearings run; they should be a light drive fit. Shafts can be reclaimed by industrial hard chromium plating and grinding to size. In order to replace any of these parts correctly, special equipment and skills are required all of which is available at Draganfly. Make sure that the oilways are clean before assembly!

PART NO

DESCRIPTION

PER

YEARS

10311-54

Stud, sump plate 4 1954-58

10313-54

Nut, crankcase tie stud 10 1954-58

10313-54

Nut, sump plate 4 1954-58

10404-54

Plug, timing side shaft 1 1954-58

12085-54

Drain plug fibre washer 1 1954-58

12130-54

Crankcase, pair – new or used 1 1954-58

12131-54

Timing side main bush 1 1954-58

12132-54

Cam bush 1 1954-58

12134-54

Cylinder base stud 6 1954-58

12136-54

Main bearing, drive side 1 1954-58

12137-54

Circlip, drive side main bearing 1 1954-58

12139-54

Oil seal, drive side crankshaft 1 1954-58

12141-54

Crankcase oil valve spring 1 1954-58

12142-54

Crankcase oil valve screw 1 1954-58

12143-54

Washer, crankcase oil valve screw 1 1954-58

12143-54

Washer, oil pipe adapter 1 1954-58

12146-54

Spring washer, cylinder base nut 6 1954-58

12147-54

Nut, cylinder base 6 1954-58

12149-54

Sump plate 1 1954-58

12150-54

Sump plate gasket 1 1954-58

12151-54

Gauze, sump plate 1 1954-58

12152-54

Washer, sump plate nut 4 1954-58

12155-54

Drain plug 1 1954-58

12170-54

Flywheel, drive side 1 1954-58

12175-54

Flywheel mainshaft, timing side 1 1954-58

12177-54

Crankpin 1 1954-58

12182-54

Crankpin key 1 1954-58

12184-54

Connecting rod with big end assembly & SEB 1 1954-58

12185-54

Connecting rod with small end bush (SEB) 1 1954-58

12186-54

Small end bush 1 1954-58

12195-54

Alternator rotor retaining nut 1 1954-58

12196-54

Lockwasher, alternator rotor retaining nut 1 1954-58

S9-1

Crankcase oil valve ball bearing 1 1954-58
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