Perkins L4 - SETTINGS AND DATA

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Page BI
(B)
SETT
NGS
AND DATA
Bore ... 4:lin.orI07.95mm
Stroke ... .,. ...,. 4i in. or 120.6 mm
Numbelofcylinders .. 4
Swept volume , 4.42 litres (270 cu.in)
Compression ratio 17.5 : I
Firing order I, 3, 4, 2
Horsepower ... See below
Maximum torque 182lbs./ft. (25.17 kg/m) at 1,000 r.p.m.
Pistons.. . .. Light Alloy
Spil I timing 21 degrees B.T.C.
Atomiser Body BKB 35S87 or BKB32S630
Atomiser Nozzle BDL IIOS6116
Injection piessure.. See page TIl
Valve lift .. ... .465 in. or 11.811 mm
Valve Face and Seat Angle .. . . .. .. 450
Dil Pressure at max. engine speed and normal working temperature
25/50 Ibs: per sq: in: (1,76/3,52 kg/sq: cm)
Valve clearance. . . .010 in. or .254 mm
When checking and adjusting valve clearances the engine should be
tumed to bring the respective pistons to T.D.C. on compression.
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' Torque Tensions Lbs./Ft. «kg/m)
Cylinder Head Nuts , 80/85 (11.06-11.75)
Con. Rod Setscrews 100/105 (13.82-14.51)
Main Bearing Setscrews 125/130 (17.29-18.00)
Flywheel Setscrews . ... 75 (10.37)
With reference to the Cylinder Head Nuts, these should be re-checked
with the engine hot.
It will be appreciated that af ter overhaul or rectification work bas been
carried out, there will be a settling period which will allowaslight
variation on the figures quoted. This is not detrimental to the perform-
ance of the engine and there is no necessity to interfere with the settings.
On no account should attempts be made to increase the torque already
quoted by re-tightening with a torque spanner.
SUMP CAPACITIES
Massey-Harris-Ferguson Combines 2 gallons (9.08 litres)
Massey-Harris-Ferguson 745 Tractor 2 gallons (9.08 litres)
Fordson Major Tractor :ol gallons 6 pints (12.49 litres)
Claas Combine. . 2 gallons (9.08 litres)
lndustrial 3 .eallons 3 pints (15.31 litres)
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HORSE POWER
Massey-Harris-Ferguson Combines.
Massey-Harris-Ferguson 745 Tractor
Fordson Major Tractor ...
Claas Combine ... Industrial
56 b.h.p. at 1,940 r.p.m.
50 b.h.p. at 1,500 r.p.m.
45 b.h.p. at 1,500 r.p.m
62 b.h.p. at 2,000 r.p.m.
Up to 59 b.h.p. at 2.000 r.D.m.
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