Daewoo Matiz (2003 year). Manual - part 259

SECTION 9I

WATERLEAKS

TABLE OF CONTENTS

Diagnostic Information and Procedures

9I-2

. . . . . . 

Waterleak Diagnosis

9I-2

. . . . . . . . . . . . . . . . . . . . . . . . 

Repair Instructions

9I-5

. . . . . . . . . . . . . . . . . . . . . . . . . . 

On-Vehicle Service

9I-5

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Waterleak Repair

9I-5

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Specifications

9I-7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Recommended Materials for 

Waterleak Repairs

9I-7

. . . . . . . . . . . . . . . . . . . . . . . . 

Watertest Stand  Specifications

9I-7

. . . . . . . . . . . . . . 

9I – 2  WATERLEAKS

DIAGNOSTIC INFORMATION AND PROCEDURES

WATERLEAK DIAGNOSIS

The repair of waterleaks in the body requires proper
testing and diagnosis. Repair waterleaks by adjusting
the misaligned parts and using the proper repair materi-
als. First, determine what conditions cause the leak. For
example, the leak may occur only when the vehicle is
parked on an incline, or water may appear only in the
spare tire compartment. Second, test the area for the
source of the leak using the following testing methods. If
the general leak area is found, determine the exact entry
point of the leak by using a water hose or an air hose. If
the general leak area is not obvious, use the watertest
stands to determine the area of the leak. It may be nec-
essary to remove some interior trim panels or some
parts in order to locate the leaks.

Important: It is necessary to find the origin of all the
leaks before making any repairs. Random repairs may
stop the leak only temporarily and may make future re-
pairs more difficult. Continue localized testing in the gen-
eral area in order to ensure that all leaks are found.

Generalized Testing

1. Set up the watertest stands.

D109A301

1 1/2-inch by 36-inch Pipe
2 Full-jet Spray Nozzle #1/2 GG-25 or Equivalent

Nozzle Height at 1,600 mm to the Floor

3 1/2-inch Coupling
4 1/2-inch by 1/2-inch by 1/4-inch Reducing T

(Right Only)

5 1/2-inch Coupling (Left Only)
6 1/2-inch Cross (Right Only)
7 1/2-inch Tee (Left Only)
8 1/2-inch Pipe-to-Hose Nipple (Right Only)
9 5/8-inch Female Hose Coupling

10 5/8-inch Input Hose (2 Feet Long, Right Only)

11 1/2-inch Close Nipple

12 1/2-inch Cross with Weld-on 1/2-inch Cap
13 1/2-inch by 12-inch Nipple
14 1/2-inch Cap
15 5/8-inch Female Hose Coupling
16 5/8-inch Cross Hose (12 Feet Long)
17 5/8-inch Hose Quick Connect
18 1/2-inch Pipe-to-Hose Nipple
19 1/2-inch by 30-inch Pipe (Straight)
20 1/4-inch Water Pressure Gauge (Right Only)

2. Set up the watertest stand leak test. 

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WATERLEAKS  9I – 3

3. Perform the watertest stand leak test. Refer to “Wa-

tertest Stand Specifications” in this section.

4. If the local water pressure does not allow the required

water pressure of 155 kPa (22.5 psi), move both
stands closer to the vehicle so that the water spray
overlaps.

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Localized Testing (Spot Test)

1. Do localized testing with a water hose or an air hose.

2. Begin testing by spraying the air or the water at the

base of the suspected leak area. Continue spraying
the air or the water upward until the leak is found.

Water Hose Test

1. Place another person inside the vehicle in order to

detect the location of the leak.

2. Use a water hose without a nozzle.

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3. Begin spraying the water at the base of the suspected

leak area. Continue spraying the water upward until
the leak is found.

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9I – 4  WATERLEAKS

Air Hose Test

1. Apply soapy water to the outside of the vehicle in the

suspected leak area.

2. Blow air from inside the vehicle. The air pressure

should not exceed 205 kPa (29.7 psi).

3. Determine the location of the leaks from the bubbles

formed in the soapy water.

D109A306