A.J.S. 3.46 H.P., Руководство пользователя

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CAMSHAFT ENGINE DETAILS.
346 c.c. Model—Bore 70 m.m.—Stroke 90 m.m.
495 c.c. „ —Bore 79 m.m.— Stroke 101 m.m.
TAPPET CLEARANCES.
Inlet—16 thou. Exhaust—18 thou. When engine cold.
CAMSHAFT AND MAGNETO CHAIN SIZE.
Number of Rollers—Camshaft a x .230 86
—Mag. Chain a x .230 51
Piston Ring Gap—10 thou.
SPARKING PLUG TYPE AND SIZE.
Competition Engine
Racing Engine
Lodge H.54—14 m.m.
Lodge BR.50—or BR.52—14 m.m.
346 c.c.
495 c.c. 6.8 to 1
6.5 to 1
7.5 to 1
7.5 to 1
11 to 1
11 to 1
COMPRESSION RATIOS AVAILABLE.
ENGINE SPROCKETS — No. OF TEETH.
346 c.c. Standard and Racing Solo
495 c.c. Standard Solo
495 c.c. Racing Solo
21 Sidecar 18
24
„ 21
25 „ 21
DISMANTLING AND ASSEMBLING : ENGINE
Cylinder Head Removal.
—First remove Petrol Pipe. Carburettor complete (as this is
taken from the Cylinder Head remove Knurled ring from top of Carburettor Body and with-
draw both slides, leave these attached to their Cables and swing them out of the way).
(Extreme care should be taken not to damage the throttle needle whilst this is exposed);
Sparking Plug, Oil Feed Pipes to Valve Guides, Oil Feed Pipe from main Engine Pump to
Rocker Box and Oil Drain Pipe to Rocker Box Pump, also Exhaust Pipe Locking Ring, etc.
Next remove the four Pins holding the Rocker Box Pump and top Inspection Disc. Take
away the Pump drive and its retaining ring and the Camshaft locknut will then be visible,
withdraw the Cotter Pin from the nut, this can then be unscrewed. Prior to removing the
Pegged Plate which locates the Chain Wheel and Sleeve turn the Engine slowly over until
the top of the Compression stroke is reached; now unscrew the four Rocker Box Pins, and
withdraw the three that are free to come away, then the Rocker box is free, but when taking
this away see that the chain wheel is held in position by the tool provided in the tool kit.
The tubular portion of this can be used for pushing the Camshaft out of the Chain Wheel,
use two chain cover Pins for holding this tool to the chain cover. Six Cylinder Head Bolts
are now visible on top of the Head, also two nuts will be found holding the Cylinder Head
to the Barrel underneath. Remove all of these.
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