Polaris msx 150 Service Manual

REPLACEMENT BEARING THICKNESS
RED .0677 -- .0679 (1.721 -- 1.726mm)
YELLOW .0679 -- .0681 (1.726 -- 1.731mm)
BLUE .0681 -- .0683 (1.731 -- 1.736mm)
GREEN .0683 -- .0685 (1.736 -- 1.741mm)
BROWN .0685 -- .0687 (1.747 -- 1.746mm)
SPECIFIED OIL CLEARANCE: ___________________
MEASURED OIL CLEARANCE: __________________
ORIGINAL INSTALLED BEARING COLOR / THICKNESS: _____________________
.0011″ -- .0015″ (.03mm -- .04mm)
ENGINE DISASSEMBLY / ASSEMBLY
4.36
2004 Four Stroke PWC Service Manual
Engine Inspection Procedures
Crankshaft In sp ectio n
NOTE: Do not move crankshaft until measurement process is completed. Do not place on oil holes.
Measure crankshaft main bearing clearance.
1. Place upper journal bearings into upper casehalve.
2. Install crankshaft. Place a piece of Plastigauge
across the journal surface. Install lower crankcase
halve with journal bearings installed.
3. Loosely install lower crankcase bolts, turn engine up on
stand.
4. Install old cylinder head gasket, cylinder, and the
cylinder head nuts. Torque nuts and bolts to specified
torque and tightening sequence.
5. Carefully remove components and measure each
compressed piece of Plastigauge .
6. Reference bearing replacement guide if bearing oil
clearance is out of specification.
S Out of specification: Replace main bear-
ings, crankcase, or crankshaft.
Crankshaft M ain Bearing Replacement Guide
Replacement of the crankshaft main bearings is required when the bearing oil clearance is out of specification.
Use this guide to select new bearings.
NOTE: Bearing color code is imprinted on the side of each bearing.
If the measured clearance is within specification, replace with new bearings with the same color code.
If the oil clearance is outside of specification, install the BLUE color--coded bearings and re--measure oil clear-
ance. If the measured clearance is too small, install either a RED or YELLOW bearing. If the measured clearance
is too large, install either a BROWN or GREEN bearing.
If the used bearings reveal an oil clearance of .04 and .05mm, install new bearings with the same color code.

Polaris msx 150 Specifications

General

Brand	Polaris
Model	msx 150
Category	Boat
Language	English