Chapter 1 – General information / Technical specifications
Service Manual AJP PR3/PR4 1 - 10
CYLINDER AND PISTON
Element
Item
Specification
Service
limit
Cylinder
Inside diameter
125
56,50 – 56,51 mm
56,60 mm
200/240
69,00 – 69,01 mm
69,10 mm
Inclination
15º
–
Roundness
–
0,05 mm
Warpage
–
0,05 mm
Cylinder height (between the
lower face and upper surface)
125
68,0mm
-
150
68,5mm
-
200
70,2mm
-
240
77,2mm
-
Cylinder gasket thickness
0,50mm
-
Piston and
segments
Direction of the piston mark
Marking "IN"
pointing to the
intake
–
Outer diameter of the piston
125
56,470 – 56,490
56,40 mm
150 (kit)
60,970 – 60,990
60,80mm
200/240
68,970 – 68,990
mm (10 mm from
the bottom of the
skirt)
68,80 mm
Clearance cylinder / piston
0,010 – 0,040
0,20 mm
Piston pin
125
Ø15x10x48
-
150 (kit)
Ø15x10x50
-
200/240
Ø
17x12x55mm
-
Inside diameter of the pin hole
125
15,002 – 15,008
15,04mm
200/240
17,002 – 17,008
17,04mm
Outer diameter of the pin came
125
14,994 – 15,000
14,96 mm
200/240
17,994 – 17,000
16,96 mm
Clearance piston hole / pin came
0,002 – 0,014
0,02 mm
Clearance rod hole / pin
0,010 – 0,034
0,10 mm
Segment width
125/150
1,0mm
-
200
1,0mm
-
240
1,2mm
-
Clearance of the segments in the
piston channel
Top
0,025 – 0,060
0,09 mm
Secondary
0,015 – 0,050
0,08 mm
Clearance at the end of the
segments
Top
0,20 – 0,35
0,5 mm
Secondary
0,35 – 0,50
0,65 mm