Filter
Top Products
ENGINE
3.5
SPECIAL TOOLS
PART NUMBER TOOL DESCRIPTION
2872105 Water Pump
Mechanical Seal Puller
2200634 Valve Seat
Reconditioning Kit
2870390 Piston Support Block
PA--45958 Cam Chain Tensionor
Assembly Tool
PA--46075 Flywheel Puller
PA-- 46076 MAG End Crankshaft
Nut Remover/Installer
PA--46087 Crankcase Separator
PA--46077 MAG End Crankshaft
Installer
2871283 Crankshaft/Water
Pump Seal Install Kit
5131135 Water Pump Install Kit
PA--46502 Valve Spring
Compressor
ENGINE FASTENER TORQUE
PA
TTERNS
Tighten cylinder head, cylinder base, and crankcase
fasteners in 3 steps following the sequence outlined
below.
8mm
1
23
4
6
5
Cylinder Head/Cylinder Base
1
2
3
4
5
6
7
8
9
10
11
12
PISTON IDENTIFICATION
The piston may or may not have an identification
mark for piston placement. If the piston has an
identification mark, follow the directions for piston
placement below. If the piston does not have an
identification mark, the direction for placement of the
piston does not matter.
Note the directional and identification marks when
viewing the pistons from the top. Identifying marks
such as “F”, “ ! ”, “ "”orD must always be
positioned to the flywheel side of the engine. Other
marks are used for identification as to diameter, length
and design. Four stroke engine rings are a
rectangular profile. See text for oil control ring rail
installation. Use the information below to identify
pistons and rings:
COMPRESSION TEST
NOTE: This engine has built--in decompression
components. Compression readings will vary in
proportion to cranking speed during the test. Average
compression (measured) is about 85--90 psi @ 400
RPM during a compression test.
A cylinder leakdown test is the best indication of
engine condition. Follow manufacturer’s instructions
to perform a cylinder leakage test. (Never use high
pressure leakage testers, as crankshaft seals may
dislodge and leak).
Cylinder Leakdown
Service Limit 10 %
(Inspect for cause if leakage exceeds 10%)
Cylinder Compression
w/ decompression
Standard: 85--90 PSI @ 400 RPM
Enfocus Software - Customer Support