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9/26/2017

Service Manual Model J

http://www.sky-net.org.uk/kelvin/diesel/j_range/man/index.html

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105. FEED PUMP.--This is necessary if the tanks are less  than 14 inches above the
centre of the flywheel.

*106. ENGINE FOUNDATION.--All Kelvin models are designed to rest on two
transverse bearers (longitudinal bearers are not suitable). The bearers must be of
hardwood and should rest direct on the planking clear of ribs. In boats having only
steam-bent ribs the bearers must run up the bilge to the height of the flywheel centre,
but in boats with grown frames the bearers may be straight on the upper surface. The
bearers should be fastened from outside with Kelvin bolts and drawn hard down to the
keel with a Kelvin Wood Stud. This should be tightened once a year as the wood
shrinks. 12 levelling washers were supplied with the engine. One at least should be
below each foot to prevent it sinking into the wood. 4 chocks were also supplied.
These should be fixed one against each engine foot to locate it sideways.

*107. DECK CONTROL.--For leading the control of the clutch and governor on
deck or into the cockpit, a variety of fittings are kept in stock; particulars on
application.

108. BALL BEARINGS.--The failure of ball bearings is seldom due to fair wear or
to original defect, but almost always to lack of protection from damp or to defective
mounting. As soon as the burnished surface of the balls shows rust the failure of the
bearing is imminent.

109. JOINTS.--Each boat should carry a stock of joints obtainable from us. In cases
of urgency, joints may be cut from certain materials obtainable from mill furnishers or
motor dealers. For exhaust use "asbestos millboard" coated with graphite or black lead
to prevent adhesion; for water use "rubber insertion"; for oil use white of egg or
Shellac or any of the cements sold by motor dealers. Red fibre withstands oil and
water but not heat. India-rubber withstands water but not heat or oil.

*110. CARE OF ENGINE.--" Kelvin" engines are designed to be easily kept clean,
all parts are rounded, no sharp edges., Use cotton waste obtainable from chandlers;
old cloth is not suitable, keep your waste dry. Wipe your tools each time you use
them.

111. FROST.--In severe weather the water should be drained from the jackets by the
drain caps. The seacocks must be closed and the floorboards should be left open to
remind you to open the seacocks before starting. If the drain caps will not hold tight
don't abuse them with the pliers. Renew the corks inside them.

112. WINTERING.--Before laying up an engine for the winter it is important to
remove any salt dried on to it, as this draws damp and causes an excessive
rusting action.
 To do so, wash down the engine with hot water. Drain all the water
from the cylinders, pumps, and from any pipe bend where water can lie. Pour some
lubricating oil into each cylinder, and turn the engine by hand. Grease everything not
protected by paint. As a wooden vessel exudes moisture inside for about 6 months
after being hauled up, It Is necessary to provide continuous ventilation if
excessive rust Is to be avoided.

Summary of Contents for J

Page 1: ...O ENGINES PROPERLY INSTALLED IN VESSELS WHICH OPERATE IN NORMAL WATERS IN DIRTY WATERS WHERE SAND SEAWEED JELLYFISH OR REFUSE MAY FOUL THE COOLING SYSTEM SPECIAL CARE MUST BE TAKEN TO KEEP THE WATER I...

Page 2: ...at 100 Fahrenheit and the oil remains uid at 20 Fahrenheit As Diesel fuels are variable it is desirable to draw a sample in a glass from every consignment Oil having ne sediment in suspension has a du...

Page 3: ...ank to discharge water and sediment b try the oil test cock 9 c ll the oil wells on the cylinders d oil the pump gear at three points the starting valves the operating cams and the coupling of the Bos...

Page 4: ...pples h Drain the governor case and re ll it with Diesel fuel Add packing to the gland if necessary j If the valves or valve seats of the water pump are badly worn renew them Examine the valve springs...

Page 5: ...n When engine res release button 21 PETROL OIL MIXTURE Should be in the proportion of 16 to 1 This is equivalent to adding one pint of lubricating oil to 2 gallons of petrol 22 STOPPING Slow the engin...

Page 6: ...e If these conditions have not been ful lled report the arrangement and the engine number 31 SMOKE AT THE EXHAUST a Cylinders too cold due to the engine being run at speed with the clutch out 23 b oil...

Page 7: ...sure exceeds the compression pressure The valve should then open and close promptly when injection has ceased 39 INJECTOR NOZZLE To inspect this rst remove the injector from the cylinder then unscrew...

Page 8: ...instruction plate on governor If the engine is running the case can be lled by opening one of the injector drain valves 42 If the engine is stopped the lling must be done through the hinged cover use...

Page 9: ...If the contact points wear rapidly 50 54 MAGNETO DISTRIBUTOR Some distributors have carbon brushes which wear The dust produced must be removed from time to time When the brushes are worn down they s...

Page 10: ...han are required The super uous sparks are led by cable to a sparking plug carried in a holder on top of the crankcase This plug and its connections must be kept in working order or the magneto may be...

Page 11: ...e completely renewed each time the engine is overhauled because in time it loses its grease and will score the rod The valve seats are renewable and held in position by solder If the body of the pump...

Page 12: ...lack in their grooves ring groove wear is in turn due to cylinder wear and cylinder wear according to the latest opinions is due partly to high gas pressure and partly to corrosion resulting from comb...

Page 13: ...ap the edges may stand above the ush and it is necessary rst to le them ush The bedding of the bush should be carried out by the use of red lead and a scraper in the ordinary manner All bolts must be...

Page 14: ...ion plate b shafts out of line remove shaft coupling and check alignment of shafts with steel rule or the blade of a carpenter s square 106 Levelling washers were supplied to be used below the engine...

Page 15: ...r length beam and if possible the speed of the boat also the full speed of the engine 102 PROPELLER SHAFT VIBRATION Causes a Lack of clearance between propeller and woodwork 101 b propeller blade bent...

Page 16: ...is imminent 109 JOINTS Each boat should carry a stock of joints obtainable from us In cases of urgency joints may be cut from certain materials obtainable from mill furnishers or motor dealers For exh...

Page 17: ...ning a tightening pressure on the nut 115 KELVIN STEERING AND CONTROL COLUMN This should be installed according to the catalogue The stopper chain should be adjusted to allow the helm over 45 degrees...

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