Identification - Mercury MerCruiser D2.8L D-Tronic Service Manual

SERVICE MANUAL NUMBER 22

Identification

For D-Tronic Engines the cylinder liners are provided in one standard size and
correspond to the tolerance class: Class A. Failure to use only the Class A liner
designated for your engine, with matching Class A piston, will result in severe
engine damage.
1. As shown in the following, inspect underside of liner for tolerance class identification
reference mark (a small radial line). NO MARK should be present. The liner is a standard
size Class A liner.
2. If a MARK is present the liner is a size Class B liner and is NOT for use on D-Tronic
engines.
3. Refer to specifications - Liner I.D. for exact dimensions.
90-860074--1 FEBRUARY 2002
a - Cylinder Liner
b - Tolerance Size Class B Reference Mark -NOT For Use With D-Tronic Engines
CAUTION
a
b
70416
ENGINE MECHANICAL
b
70439
Page 3A-137