Volvo MB10A - Piston Rings and Pins; Crankshaft and Connecting Rods

7
Renoveringsdata/Overhaul data
Kolvringar/Piston rings
Kolvringsgap mätt i ringens öppning..................... 0,40–0,55 mm (0.0157–0.0217 in.)
Piston ring gap measured in the opening of
the ring
Överdimension på kolvringar ................................ 0,76 mm (0.0300 in.)
Piston ring oversize
Kompressionsringar/Compression rings
Märkta ”TOPP”. Övre ringen förkromad
Marked “TOP”. Top ring chromed
Antal på varje kolv ............................................... 2
Number on each piston
Höjd ..................................................................... 1,98 mm (0.0780 in.)
Height
Kolvringsspel i spår.............................................. 0,05–0,07 mm (0.0020–0.0028 in.)
Piston ring clearance in groove
Oljeringar/Oil rings
Antal på varje kolv ............................................... 1
Number on each piston
Höjd ..................................................................... 4,74 mm (0.1866 in.)
Height
Kolvringsspel i spår.............................................. 0,05–0,07 mm (0.0020–0.0028 in.)
Piston ring clearance in groove
Kolvtappar/Piston pins
Flytande lagrad. Låsring i båda ändar i kolven
Floating fit. Circlips at both ends in piston
Passning: I vevstake ........................................... Lätt tumtryck (noggrant löpande passning)
Fit: In connecting rod ...................................... Close running fit
Passing: I kolv ..................................................... Tumtryck (skjutpassning)
Fit: In piston.................................................... Push fit
Diameter, standard............................................... 22,00 mm (0.8661 in.)
Diameter, standard
Diameter, standard* ............................................. 24,00 mm (0.9449 in.)
Diameter, standard*
Diameter, överdim. ............................................... 22,05 mm (0.8681 in.)
Diameter, oversize
Diameter, överdim.* ............................................. 24,05 mm (0.9469 in.)
Diameter, oversize*
* Gäller från motor nr 2779.
* Valid from engine No. 2779.
Vevaxel/Crankshaft
Vevaxel, axialspel ................................................ 0,25–0,45 mm (0.0098–0.0177 in.)
Crankshaft, end float
Ramlager, radialspel............................................. 0,05–0,10 mm (0.0020–0.0039 in.)
Main bearings, radial clearance
Vevlager, radialspel.............................................. 0,03–0,08 mm (0.0012–0.0031 in.)
Big-end bearings, radial clearance