Volvo Penta D2-55, Workshop Manual

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Group 20 Technical data
D2-55 A/B/C D2-75 A
Camshaft
Drive ............................................................................. Gear wheel Gear wheel
No of bearings ............................................................... 3 3
Valve timing:
inlet valves opens b.t.d.c. .......... 13 o 13 o
closes a.b.d.c. ........ 43 o 43 o
exhaust valves opens b.b.d.c. ......... 43 o 43 o
closes a.t.d.c. ......... 13 o 13 o
Valves
Inlet
Valve stem diameter ..................................................... 6.955-6.970 mm 6.955-6.970 mm
Valve head edge ........................................................... 0.925-1.075 mm 0.925-1.075 mm
Clearance, valve stem - valve guide ............................. 0.03-0.06 mm 0.03-0.06 mm
Valve seat angle in cylinder head .................................. 45 o 45 o
Valve clearance, cold engine ......................................... 0.20 mm 0.20 mm
Exhaust
Valve stem diameter ..................................................... 6.94-6.95 mm 6.94-6.95 mm
Valve head edge ........................................................... 0.925-1.075 mm 0.925-1.075 mm
Clearance, valve stem - valve guide ............................. 0.050-0.075 mm 0.050-0.075 mm
Valve seat angle in cylinder head .................................. 45
o
45
o
Valve clearance, cold engine ......................................... 0.20 mm 0.20 mm
Valve springs
Length unloaded ................................................. 35 mm 35 mm
with 79.4 N (8.1 kp) load ......................... 30.4 mm 30.4 mm
Pushrods
Length, total .................................................................. 226 mm 226 mm
Outer diameter .............................................................. 6.35 mm 6.35 mm
Rocker arm mechanism
Rocker arm shaft, diameter ........................................... 14.95-14.97 mm 14.95-14.97 mm
Clearance, rocker arm shaft – rocker arm bush ............. 0.030-0.093 mm 0.030-0.093 mm
Lubrication system
Oil pressure, hot engine at operating speed .................. 150-500 kPa 150-500 kPa
Oil pressure, idle ........................................................... 50-150 kPa 50-150 kPa
Reduction valve, opening pressure ................................ 245-345 kPa 245-345 kPa
Lubrication oil pump:
clearance, inner - outer rotor ................... 0.01-0.15 mm 0.01-0.15 mm
end float, rotor - cover ............................. 0.01-0.15 mm 0.01-0.15 mm
Oil grade ....................................................................... VDS-2, VDS-2,
..................................................................................... ACEA E5, ACEA E5,
..................................................................................... API CH-4 API CH-4
Viscosity at -5 to +50 ° C* ............................................... SAE 15W/40, SAE 15W/40,
..................................................................................... SAE 20W/50 SAE 20W/50
Max oil volume incl. oil filter, no engine
inclination, approx. ........................................................
10.6 liter 10.6 liter
Min. oil volume incl. oil filter, no engine
inclination, approx. ........................................................
8.9 liter 8.9 liter
*Note The temperature values refer to constant ambient temperatures