Mercury 25 EFI Service Manual page 275

Lubricants, Sealants, Adhesives
Tube Ref No.
2-4-C with PTFE
95
10W-30 4-Stroke Marine
110
Engine Oil
Special Tools
Valve Spring Compressor
90-8M0105568 eng MARCH 2016
Description
Camshaft, cylinder head and camshaft bearing surface
Removes and installs valve springs.
3454
Where Used
Camshaft seal lip
Valve stem
Intake rocker shaft
Exhaust rocker shaft
Cylinder head bolt threads
91‑809494A1
© 2016 Mercury Marine
Cylinder Head
Part No.
92-802859A 1
92-8M0078625
Page 4B-3