Mercury 150 EFI Service Manual page 517

RIGHT HAND NON-RATCHETING
7. Slide impeller down driveshaft to impeller drive key. Align drive key with keyway in the
center hub of impeller, and slide impeller over drive key.
8. If removed, install new water pump insert into pump cover as follows:
a. Apply Perfect Seal to water pump insert area of pump cover.
b. Install water pump insert into pump cover. Verify that tab on insert enters recess
c. Wipe any excess Perfect Seal from insert and cover.
NOTE: If 2 holes were drilled in top of water pump cover to aid in removal of insert, fill holes
with RTV Sealer or equivalent. Allow to cure, 24 hours prior to operating engine.
9. Install water tube seal into pump cover, being sure that plastic side of seal goes into
cover first.
10. Reinstall water tube guide into water pump cover.
11. Apply a light coat of Quicksilver 2-4-C with Teflon Marine Lubricant inside of water
pump insert.
12. Position assembled water pump cover over driveshaft and lower over water pump
studs. Rotate driveshaft in a clockwise direction (viewed from top), while pushing
down on pump cover to ease impeller entry into cover.
13. Install water pump cover retainer washers, nuts and bolt.
DO NOT over-torque nuts and bolt, as this could cause cover to crack during op-
eration.
14. Torque water pump nuts to 50 Ib. in. (5.5 Nm), and water pump bolt to 35 Ib. in. (4 Nm).
15. Install centrifugal slinger over driveshaft and down against pump cover.
a -
b -
c -
Page 6A-44
in pump cover.
a
a
b b
c
c
Water Tube Guide
Water Tube Seal
Nuts, Bolts and Washers
CAUTION
51874
90-883728 JULY 2001