4A-42 - POWERHEAD 90-824052R3 JUNE 2002
14. Verify that no piston rings were broken during
installation by pressing in on each piston ring thru
exhaust port using a screwdriver. If no spring
tension exists (ring fails to return to position), it’s
likely ring is broken and must be replaced.
51852
a
a - Screwdriver
Crankcase Cover Installation
(Standard and High Performance
Models)
1. Thoroughly remove all oil from mating surfaces of
crankcase cover and cylinder block with Loctite
Primer ‘T’ (92-59327-1).
2. Install gasket strips into grooves in crankcase
cover. Trim end of each gasket strip flush with
edge of cover as shown.
b
a
51852
a - Gasket Strips
b - Edge of Cover
3. Apply a thin, even coat of Loctite Master Gasket
#203 on mating surfaces of crankcase cover and
cylinder block.
a
a
a - Loctite Master Gasket (92-12564-1)
4. Place crankcase cover in position on cylinder
block. Turn the 8 center main bolts in a LITTLE at
a time, (following torque sequence) compressing
crankshaft seal rings until crankshaft cover has
been drawn down to cylinder block. Tighten eight
bolts (a) evenly in three progressive steps
(following torque sequence).
5. Install remaining crankcase cover flange bolts.
6. Tighten end cap bolts to specified torque.
a
b
c
d
8
7
4
2
6
5
3
1
a - Upper End Cap Bolts – Torque to 150 lb. in. (17.0 N·m)
b - Lower End Cap Bolts – Torque to 80 lb. in. (9.0 N·m)
c - Add Light Oil to Threads and Bolt Face – 8 Bolts
(3/8 in.-18) Torque to 38 lb. ft. (51.5 N·m)
d - Bolts (5/16 in.-18) Torque to 15 lb. ft. (20.5 N·m)
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