Mercury 150 EFI Service Manual page 355

POWERHEAD
21. Remove upper end cap and lower end cap from crankshaft.
22. Remove and discard O-ring seals from each end cap.
23. Remove oil seal(s) from end of each end cap by driving seal out with a punch and ham-
mer.
24. Inspect roller bearing in upper end cap as outlined in "Cleaning and Inspection".
NOTE: If roller bearing is damaged, replace upper end cap and roller bearings as an assem-
bly.
b b
25. Remove crankshaft and place in powerhead stand.
IMPORTANT: DO NOT remove crankshaft sealing rings from crankshaft, unless re-
placement of a sealing ring(s) is necessary. Usually, crankshaft sealing rings do not
require replacement, unless broken.
Safety glasses should be worn when removing or installing crankshaft sealing
rings.
Page 4A-38
a - Upper End Cap
b - Lower End Cap
a
a
51848
CAUTION
d
c
51853
c - O-Ring
d - Seal
90-883728 JULY 2001