Volvo MB10A, Workshop Manual

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6
Renoveringsdata/Overhaul data
Allmänt/General
Typbeteckning ..................................................... MB10A
Type designation
Max effekt ............................................................ 11 kW (15 hk) (15 hp)
Max output
Max varvtal .......................................................... 33 r/s (2000 r/m)
Max speed
Kompressionsförhållande ..................................... 6,5:1
Compression ratio
Kompressionstryck vid startmotorvarv ................. 7,5 kp/cm 2 (107 p.s.i.)
Compression pressure at starter motor speed
Cylinderantal ........................................................ 2
Number of cylinders
Cylinderdiameter .................................................. 88,9 mm (3.50 in.)
Bore
Slaglängd ............................................................. 82,0 mm (3.23 in.)
Stroke
Slagvolym ............................................................ 1,018 dm 3 (l) (62.1 cu.in.)
Displacement
Vikt utan olja och vatten, ca ................................ 105 kg (232 lb.)
Weight wihtout oil and water, approx.
Tomgångsvarv ..................................................... 10 r/s (600 r/m)
Idling speed
Cylinderblock/Cylinder block
Material ................................................................ Gjutjärn
Material ........................................................... Cast iron
Cylinderdiameter, standard ................................... 88,90–88,93 mm (3.5000–3.5012 in.)
Bore, standard
Cylinderdiameter, överdim. 0,76 mm (0.0300 in.) . 89,66–89,69 mm (3.5299–3.5311 in.)
Bore, oversize 0.76 mm (0.0300 in.)
Max. cylinderdeformation ..................................... 0,01 mm (0.0004 in.)
Max. cylinder deformation
Kolvar/Pistons
Material ................................................................ Lättmetall
Material ........................................................... Light-alloy
Höjd, total ............................................................ 71,0 mm (2.795 in.)
Height, total
Höjd från kolvtappscentrum till kolvtopp ............... 46 mm (1.811 in.)
Height from gudgeon pin centre to piston top
Kolvspel ............................................................... 0,03–0,05 mm (0.0012–0.0020 in.)
Piston clearance
Kolvspel* ............................................................. 0,01–0,03 mm (0.0004–0.0012 in.)
Piston clearance*
Kolvar finns som standard, st 0,03 mm
och 0,76 mm överdim.
Pistons available as standard, st 0,03 mm
(0.0012 in.) and 0.76 mm (0.0300 in.) oversize
Kolvdiameter skall mätas 12 mm från nedre kanten.
The piston diameter should be measured 12 mm
(0.47 in.) from de lower edge.
* Gäller från motor nr 2779.
* Valid from engine No. 2779.