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GTX Limited iS 2009
Инструкция по эксплуатации Страница: 154

Sea-Doo GTX Limited iS 2009 Инструкция по эксплуатации онлайн [154/555] 12053

Section 02 ENGINE

Subsection 10 (CYLINDER HEAD)

R1503motr157A

TYPICAL

1. Leak down tester gauge

2. Gauge adapter

3. Air supply hose

7. Note the amount of leaking or percentage (de-

pending on tester).

LEAKAGE

PERCENTAGE

ENGINE CONDITION

Up to 15% Excelle

nt condition

16% to 25%

Good condition

26% to 40%

Fair condition; engine will run

and performance might be

down in

some cases

41% and higher

Poor condition, diagnose and

repair

engine

8. Proceed the same way with remaining cylin-

ders.

Diagnostic

Pressurize area to be tested, spray soap/water so-

lution at the indicated location and look and/or lis-

ten for air bubbles.

OBSERVATION CAUSE

Airescapingonintake

port

Leaking intake valve(s)

Air escaping on

exhaust port

Leaking exhaust valve(s)

Air escaping into

crankcase

Excessively worn and/or

broken pisto

nrings

Air bubbles out of

coolant tan

Leaking cylinder head

gasket

Air/water

escaping f

rom

cylinder-block/head

Damaged gasket and/or

loosened screws

Coolant escaping from

water pump housing

Damaged ga

sket and/or

loosened screws (refer to

COOLING SYSTEM

)

Coolant escaping from

leak indicator hole

Damaged rotary seal on

water pump shaft (refer to

COOLING S

YSTEM

)

Oily contamination on

leak ind

icator hole

Damaged oil seal on water

pump shaft

Reassembly

For reassembly, reverse the preparation proce-

dure. Use torque values and service products

from the exploded views (refer to proper

ENGINE

subsections).

Properl

y install ignition coils. Refer to

IGNITION

SYSTEM

subsection.

TROUBL

ESHOOTING

The following is provided to help in diagnosing the

probable source of problems. It is a guideline and

it should not be assumed to list all possible prob-

lems.

Always check for fault codes. If a fault code is de-

tected, service the fault code first. Refer to

EN-

GINE MANAGEMENT

section.

UNUSU

AL ENGINE NOISE OR

VIBRA

TIONS

1. Incor

rect camshaft timing adjustment

- Replace damaged components and readjust

cams

haft timing.

2. Cams

haft timing gear screws got loose

- Retighten screws with the recommended torque.

3. Rocker arm(s) hydraulic element is broken or

worn out (improper valve adjustment).

-Rep

lace faulty rocker arm(s).

smr2009-025 131

Sea-Doo GTX Limited iS 2009 Инструкция по эксплуатации онлайн [154/555] 12053

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