Technical data

,,
88,
i ENGINE MAIN MECHANICAL UNIj- ;
Pistons~ (with insert)
b
c
d
Unit: mm (in)
,Engine
Inspection data
1800
~
VM 82A
~
Pistbnidiameter:(l) (‘a”
Grade A
m,91.965 to 91.9P5 (3.6206 to 3:623 1)
1st coypqession ring groove height “b”
~
2nd cdmpression ring groove height “c”
21175 to 2.205 (0.0856 to 0.0868)
2.060 to 2.080 (0.0811 to 0.0819)
Oil scr:aper ring groove height “d”
4.020 to 4.040 (0.1583 to 0.1591)
:,
Gudgeon pin bore dia. in piston “8”
~ ~
Max pistqn skirt wear limit
,”
30,002 + 30,007
” ,,
~ 8, ~
0.050 (0.002)
Mai gudgeon pin bore ovality (at wear limit)
0.050 (0.002)
‘,
(1) TO tic measured perpendicularly to gudgeon pin, at 19.75 mm (0.7775 in) from lower edge of piston skirt
(2) Cor t,his measurement use special cylinder liner retaining tool A.7.0411 and tighten the screws to 59 N.m (6kg.m)
‘,
Measur;ement of cylinder head, gasket thickness
Unit: mm (in)
Engine
~
I
t ~
,i,
Cylinder head gasket thickness
~
1.420 10.0559)
1.520 (0.0598)
1.620 (0.0638)
May 19i8
Identification notches
1800
VM 82A
Piston projection at, T.D.C. with respect to liner
outer rim “f” (1)
0
0.480 to 0.570 (0.0189
to 0.0224)
2
0.580 to 0.610 (0.0228
to 0.0264)
1
0.880 to 0.770 (0.0268
to 0.0303)
PA333500883300
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