Jet Drive Installation - Mercury 25 EFI Service Manual

2. Apply 2‑4‑C with PTFE to the threads on the mounting bolts and fasten the liner into the water intake housing. Tighten the
bolts to the specified torque.
Tube Ref No.
2-4-C with PTFE
95
Description
Liner mounting bolts

Jet Drive Installation

1. Remove and isolate the spark plug leads from the spark plugs.
2. Lubricate the splines on the driveshaft with 2‑4‑C with PTFE. Do not apply lubricant on the top surface of the driveshaft.
Installing the jet drive to the powerhead without adequately cleaning the top of the driveshaft can result in severe product
damage. Any lubricant trapped in the space between the driveshaft and the engine's crankshaft prevent the two from properly
engaging. Always clean the top of the driveshaft before installing the jet drive.
Tube Ref No.
2-4-C with PTFE
95
3. Guide the jet drive into the driveshaft housing, making sure the driveshaft engages the crankshaft and the water tube
enters the water pump seal.
4. Install the jet drive to the driveshaft housing with the five bolts shown. Apply Loctite 271 Threadlocker to the bolt threads
and tighten the bolts to the specified torque.
a
a - Lower bolts (4)
b - Upper bolt (1)
90-8M0105568 eng MARCH 2016
25787
Description
Description
a
a
a - Liner
b - Mounting bolt (2)
b
Where Used
Liner mounting bolts threads
NOTICE
Where Used
Driveshaft splines
b
© 2016 Mercury Marine
Jet Drive Outboard
Part No.
92-802859A 1
Nm lb. in.
11.3 100
Part No.
92-802859A 1
25731
Page 9A-17
lb. ft.