Oil quantity when changing t o new oil
. . . . . . . . . . . . . .
Oil quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil viscosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil pressure (with warm engine).
. . . . . . . . . . . . . . . . . .
Cooling water temperature . . . . . . . . . . . . . . . . . . . .
Direction of engine rotation (looking forward)
. . . . . . . .
Reduction rear ratio
. . .
. . . . . . . . . . . . . . . . . . . . . . .
Propeller shaft of stainless acid proof steel with two
inner sealing rings and a rubber mounted outer bear-
ing of water lubricated fibre.
Shaft diametre
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotating direction of the propeller seenlooking forward
Propeller 3 bladed . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alternator
. . . . . . .
Lighting battery capacity
. . . . . . . . . . . . . . . . . . . . . . . . . .
Starting battery capacity
. . . . . . . . . . . . .
3-3.5 litres
0.68-0.75 Imp. gal.
0.8-0.9
US.
gal.
Service D M or DH oil for diesel engines
SAE
30
2--3 kp/cm2
2 8 - 4 3 Ib/sq. in.
7 0 - 8 5 ° C
anti-clockwise
2.04:
1
25 mm
anti-clockwise
16 1/2
x
1
2“
12 volts
490 watts
57-60 Ah
57-60 Ah
Fig. 3.
Air ducts and sound-proofing f o r the engine .
Glassfibre lamination
The thickness of the
hull
is 6 mm in the topsides and 8 mm below the waterline. The
hull is strengthened with glassfibre angles - stringers and frames
-
and by floors,
engine bed and air ducts laminated into the hull.
Horizontal areas of
deck and cabin top
are sandwich construction with a core material
of Divinycell (PVC cellular plastic).The top laminate is 3.5 mm (5/32”) thick, the Divi-
nycell 15 mm
(5/8”)
and the inner laminate 2.5 mm
(1 /8"")
Certain areas have a pres-
sure proof filler of polyester and Vermiculite (a mineral product). Moulded into the
deck are conduits for the electrical wiring and wooden blocks to take the various
through bolts. The deck is bolted and laminated to the flange on the hull and the joint
is covered with a toe rail of PVC plastic.
Engine cover
of glassfibre is sound insulated with 30 mm sound deadening foam. The
engine bed has sealed bushings for fuel, water and exhaust lines and rubber bushings
for electrical wires and control cables. The engine room is completely sealed off from
the hull. Leaking oil cannot spread and smell throughout the bilges.
Windscreen
and
side windows
are made of hardened glass. Fore and aft cabin curved
windows are of acryllic glass.
The
rudder
is made of glassfibre. The
rudder stock
is 25 mm acid proof stainless steel
and is glanded with a water lubricated fibre bushing. The wheel
steering gear
and
flexible cable are b y Teleflex. The flexible cable works a rudder arm on the rudder
4
www.jonesboatyard.co.uk
