Installation - Using Late Model Gaskets - Mercury MerCruiser D2.8L D-Tronic Service Manual

ENGINE MECHANICAL

Installation - Using Late Model Gaskets

NOTE: Early model D2.8L D-Tronic and D4.2L D-Tronic diesel engines can be retrofitted
with late model cylinder head gaskets if the cylinder head spacers (for ends of first and last
cylinder heads) are replaced with new size spacers.
HEAD GASKET IDENTIFICATION
The following in-line diesel engines now use a new, late model cylinder head gasket which
seals more than one individual cylinder and eliminates the 100-hour re-torque that was
required for early model gaskets.
Hold the gasket with the push rod holes up towards the top. Identification marks will be in
the lower right hand corner.
•
No holes indicates a thickness of 0.056 in. (1.42 mm)
•
2 holes indicates a thickness of 0.060 in. (1.52 mm)
•
1 hole indicates a thickness of 0.064 in. (1.62 mm)
Late Model Gasket (1.52 mm Thickness Shown - 2 Holes)
Page 3A-62
Description
D2.8L D-Tronic - D2.8L D-Tronic -
Serial Number 0L098059
And Above
Description
D4.2L D-Tronic -
Serial Number 0L098232
And Above And Above
a - Two Holes
Gasket seals all 4 cylinders
Gasket seals front 3 cylinders
Gasket seals rear 3 cylinders
SERVICE MANUAL NUMBER 22
Gasket Thickness
in. (mm)
0.056 (1.42)
0.060 (1.52)
0.064 (1.62)
Gasket Thickness
in. (mm)
0.056 (1.42)
0.060 (1.52)
0.064 (1.62)
0.056 (1.42)
0.060 (1.52)
0.064 (1.62)
a
90-860074--1 FEBRUARY 2002