1-64. WATER PUMP.
a.
Type .................................................................................. Centrifugal, Belt Driven From Crankshaft
b.
Outside Diameter of Shaft for Pulley
(Separate Bearing Pump) ................................ .................. 0.5905-0.5908 in. (14.999-15.006 mm)
c.
Inside Diameter of Pulley Bore
(Separate Bearing Pump) ................. ............................. ...........0.5880.589 in. (14.935-14.961 mm)
d.
Outside Diameter of Shaft for Pulley
(Combined Bearing and Shaft) ........................ .............. ........0.6262-0.6267 in. (15.905-15.918 mm)
e.
Inside Diameter of Pulley Bore
(Combined Bearing and Shaft Pump)............... ......................0.6239-0.6247 in. (15.847-15.867 mm)
f.
Interference Fit of Pulley on Shaft .................... ..........................0.0015-0.0028 in. (0.038-0.071 mm)
g.
Outside Diameter of Shaft for Impeller ............... ................ .....0.498-0.499 in. (12.649-12.675 mm)
h.
Inside Diameter of Impeller Bore ................. .............................0.497-0.4975 in. (12.624-12.637 mm)
i.
Interference Fit of Impeller on Shaft ................... ........................ 0.0005/0.002 in. (0.013-0.051 mm)
j.
Outside Diameter of Impeller ..................................................... 3.094-3.125 in. (78.588-79.375 mm)
1-65. FUEL SYSTEM.
a.
Approved Fuel Oil Specifications (United States) ........ .....................V..V-F-800a A.S.T.M./D975-66T
Grades DF-A, or DF-2
No. 1-D or No. 2-D
b.
Fuel Pump.
(1) Type ......................................................................................... AC Delco Diaphragm '"YJ" Series
(2) Spring Color ....................................................................................................................... Green
(3) Method of Drive ............................................................................. From Eccentric on Camshaft
Via Pushrod
(4) Total Stroke of Operating Lever ................................................................. 0.192 in. (4.877 mm)
(5) Static Pressure (No Delivery) ......................................................................... 4-7 psi (2848 kPa)
(6
Pump to Distance Piece Gasket Thickness .............. ................0.0180.022 in. (0.457-0.559 mm)
(7) Distance Piece (Lift Pump to Tappet Inspection Cover) .................... ....... 0.256 in. (6.502 mm)
c.
Final Fuel Filter.
(1) Element Type .................................................................................................................... Paper
(2) Overflow Valve Type ........................................................................... Gravity Ball Check Valve
(3) Valve in Fuel Pump Drain Connection ................................................ Spring Loaded Non-return
Valve Set at 0.71-1.25 psi
(4.90-8.62 kPa)
1-15