Westerbeke 7.0 KW BGC -60Hz Technical Manual page 46

Camshaft
The improved cam profile, in combination with an appropriate valve timing, has made possible the high
speed operation of the camshaft.
Dog clutch grooves for driving the distributor have been provided at the rear end of the camshaft. The thrust
force of the camshaft has been sustained by a camshaft thrust ring.
Camshaft journal No.1
Camshaft journal No.2
Camshaft journal No.3
Cam lift (intake)
Cam lift (exhaust)
Fuel pump cam lift
IN EX
open
TOC
close
IN
EX
close
open
BOC
Timing Belt
For improved reliability, a round toothed
timing belt has been installed.
Nominal name of helt 99Y16
_._-_._--------
Pitch peripheral length mm (inch) 792 (31.18)
._--_
...
,._--------_.---
- - - - - - _ .
Pitch mm (inch) 8 (0.31)
_ .
_
..
Tooth numher 99
Belt width mm (inch) 16.0
Westerbeke Generators
mm (inch)
42.5 (1.67)
42.0 (1.65)
30.0 (1.18)
5.27 (0.207)
5.31 (0.209)
2.0
EX
0
0
IN
Core cord
~
Core cord
------10
00
oooJo
0 0 001
42