Assembling the engine
					=====================
				Fitting chain and adjusting camshaft drive
				------------------------------------------

	1.	Set the piston on T.D.C,

	Caution	To replace timing chain without engine removal set engine on T.D.C. through 
		the inspection hole machined in engine crankcase. The arrow engraved in 
		flywheel must register with the dash on housing.

Fig.	2.	Rotate camshaft to its overlap dead centre position. A straightedge placed 
40		upon the pushrods must be parallel to the joint face of cylinder head.

Fig.	Caution	When refitting chain without engine removal apply a punch mark.  The third 
41		tooth of camshaft sprocket, counted from the drill hole of the driver, peg to 
		the left, must shown vertically downwards.

Fig.	3.	Return camshaft sprocket and engage chain on top.
42

Fig.	4.	Rotate camshaft sprocket to the right and engage chain upon crankshaft sprocket 
43		in the punch marked position (T.D.C. position).

Fig.	5.	With the aid of an appropriated tool bring chain members together and push the 
44		free chain member upon the lock member. 6. Place chain lock in position. 7. Fit 
		the chain lock cotter with the closed end in direction of rotation.
	
	Caution	To compensate chain tension there are provided three different lengths and 
		colour marks for identification purposes: Blue = short chain, red = middle chain,
		green = long chain.  The fitted chain must not show more than 3mm (.12") of 
		play (slack) when applying, thumb pressure.  Fit chain of corresponding length 
		with the coloured mark outward.



					Further dismantling
					===================

Fig.	22.	Withdraw push rods. 23.  Slacken cylinder base clamping nuts. (open ended 
45		spanner 14mm) 24.  Insert piston board. 25.  Remove gudgeon pin retaining 
		circlip. (pointed pliers) 26.  Heat piston with heating sleeve up to about 60°C 
		= 140°F and press out gudgeon pin (electric heating sleeve, gudgeon pin drift).

Fig. 	Caution	If the piston pin does not come out by thumb pressure, do not tap out, apply 
46		piston pin remover device.

Fig. 	Caution	Always assemble pistons and pins bearing the same colour marks for 
47		identification purposes.  When assembling piston heat same upon heating plate 
		or in oil up to 60°C = 140°F and warm gudgeon pin slightly. 27. Remove tappets.
	
	Caution	Identify the tappets by tags so that they can be correctly reinstalled in the same 
		position and location. 28. Unscrew plug giving access to the oil pump drive. 29.
		Remove oil pump drive.

Fig.	30.	Enter screwdriver through the two holes in camshaft sprocket in order to remove 
48		the two screws fixing the camshaft bearing holding bush. (screwdriver 10mm) 
		31.  Remove camshaft with the aid of camshaft puller No. 355.
	
	Caution	Handle camshaft carefully to prevent it from damage. 

Fig.	Caution	When refitting make certain that the camshaft sprocket aligns with the 
49		crankshaft sprocket so that the timing chain runs correctly.  Eliminate any 
		eventual misalignment by pressing camshaft sprocket a bit more inwards. 32.
		Remove two screws from crankshaft front bearing cover plate. (socket spanner 
		10mm) 33.  Remove crankshaft sprocket. (puller No. 299) 
	
	Caution	To refit the sprocket heat it to about 150°C = 300°F, tilt engine and slide sprocket 
 		on vertically standing shaft downwards. 34. Detach oil sump. (socket spanner 10 
		mm) 35. Remove oil pump, straighten bent ears of lock washer and remove two 
		screws (hammer, chisel, socket spanner 10mm) 36. Straighten locking lugs on 
		flywheel nut lock washer. (Hammer, chisel)
	
	Caution	When refitting bend lock washer slightly before installation to facilitate 
		completion of bending on the fitted washer.

Fig.	37.	Unscrew flywheel nut from flywheel blocked previously by fixture No. 498 
50		(see No. 10 to 23).
	
	Caution	To screw on the nut place turned surface toward the flywheel and check 
		flywheel for tight fit by moving it to and fro.  If the tapered shaft end does 
		not fit well give it a short lapping treatment.  After installation check 
		flywheel clutch face squareness and out-of-round crankshaft end with the aid of 
		a dial gauge.  Max. out of squareness 0.08-0.1mm = .0032" to .004".

Fig.	38.	Remove flywheel. (flywheel puller No. 311, ring spanner 27mm).
51

Fig.	Caution When assembling make certain that the flywheel key does not sit upon 
52		flywheel.  39.  Remove 5 screws fixing flange of front bearing cover plate. 	
		(socket spanner 10mm)

Fig.	40	Heat engine crankcase on a plate or in an oven up to about 100 to 120°C=
53		210 to 250°F.

Fig.	41.	Place connecting rod so that the big end stands at the recess machined in right-
54		hand border of crankcase aperture and remove crankshaft by turning it slightly 
		upwards. 42. Immediately thereafter expel camshaft bearing by pushing the 	
		warm crankcase against a hard wood plate (work-bench).
		The reassembly is carried out in precisely the reverse order. For individual
		treatment of connecting rod, piston, valves, crankshaft and oil pump see under 
		M 12, M 14, M 20, M 24, and M 26.