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SECTION 1
SAFETY AND GENERAL INFORMATION
Model
Model
M18
M20
Piston and Piston Rings
E
(Style "D" Pistons)
Thrust Face O.D. @ Dt - Мем
........................
3.1203/3.1210
3.1208/3.1215
Thrust Face O.D. @ 01 - Max. Wear Limit? ..............
3.1181
3.1186
Thrust Face to Bore Clearance @ D1 - New? . .
.0035/.0052
.0030/.0047
Piston Ring End Gap - Мем ..........................
.010/.023
.010/.023
Piston Ring End Gap - Used (Max.)® ...................
032
032
Piston Ring Side Clearance – Мах, .....................
-006
006
Piston Pin O.D.
- New
...............................
.8247/.6249
-7499/.7501
Valves and Tappets
Intake Valve to Tappet Clearance - Cold
................
.003/.006
.003/.006
Exhaust Valve to Tappet Clearance - Cold
(Serial No. 1816500646 and earlier) ..................
.016/.019
:016/.019
(Serial No. 1816500656 and later) ...................
.011/.014
.011/.014
Intake Valve Minimum Lift - Zero Lash
..................
-274
274
Exhaust Valve Minimum Litt - Zero 1азһ.................
274
274
Intake Valve Minimum Stem О.О. .......................
3103
3103
Exhaust Valve Minimum Stem OD. .....................
-3088
.3088
Nominal Маме Seat Angle
(Serial No. 1816500646 and earlier) ..................
45°
45°
(Serial No. 1816500656 and later) ...................
30°
30°
Valve Guide Веатег 5126 .............................
:3125
:3125
Intake Valve Guide І.О. Max. Wear Limit .................
-005
005
Exhaust Valve Guide I.D. Max. Wear Иті ................
.007
:007
1.9
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