Mercury MerCruiser Service Manual page 262

Engine Inspection and Assembly
2. Align the intake manifold gaskets with the locator pins. Install the lower intake manifold gaskets onto the cylinder heads.
c
a
a - Locator pin hole
b - Locator pins
c - Area for sealant
Tube Ref No.
Loctite 5900 Ultra Black
128
RTV Silicone Sealant
3. Apply a 5 mm (0.197 in.) wide bead of adhesive to the front and rear of the engine block as shown. Extend the adhesive
bead 13 mm (0.51 in.) up on the intake gaskets.
IMPORTANT: Do not get sealer into the oil sending unit hole at the rear of the engine.
Tube Ref No.
Loctite 5900 Ultra Black
128
RTV Silicone Sealant
4. Coat the threads of the intake manifold bolts with sealant.
5. Carefully install the intake manifold assembly onto the engine block.
IMPORTANT: Avoid engine damage. Crankshaft bearing bore alignment may become distorted resulting in damage to the
crankshaft bearings if intake manifold fastener tightening sequence and torque are done improperly. Always torque the
bolts in sequence to the specified amount in each of the passes required.
The crankshaft bearings are matched sets. Mismatching the bearings can result in engine damage. Replace and install the
bearings in matched pairs.
Page 3B-60
b
a
Description
Each end of the lower intake manifold gaskets on the
Description
A wide bead of adhesive to the front and rear of the engine
© 2016 Mercury Marine
b
a
c
a
Where Used
cylinder head side
Where Used
block, extending the adhesive bead
NOTICE
c
59592
90-8M0099748 eng DECEMBER 2015
Part No.
92-809826
Part No.
92-809826