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3.

ALWAYS KEEP HANDS AND FINGERS AWAY FROM THE MOVING PARTS
AND HOT PARTS OF THE ENGINE.

4.

MAKE SURE TO READ AND UNDERSTAND ALL INSTRUCTIONS
(i.e., compression specifications), AND SAFETY PRECAUTIONS AS OUT-
LINED IN THE MANUFACTURER’S MANUAL FOR THE ENGINE YOU ARE
TESTING.

5.

WHEN WARMING UP AN ENGINE IN PREPARATION FOR
COMPRESSION TESTING, MAKE SURE THE VEHICLE’S TRANSMISSION IS
PLACED IN “PARK” AND THE EMERGENCY BRAKE IS APPLIED.

6.

WARNING: 

The brass components of this product contain lead, a chemical

known to the State of California to cause cancer and birth defects (or other
reproductive harm).  

(California Health & Safety Code 25249.5 et seq.)

UNPACKING

When unpacking, check to make sure all the parts shown on the

 Parts List on page 7

 are

included.  If any parts are missing or broken, please call Harbor Freight Tools at the
number shown on the cover of this manual as soon as possible.

PRODUCT OVERVIEW

1.

The Cylinder Leakage Tester is a tool through which compressed air is supplied
to each engine cylinder.  The Cylinder Leakage Tester then measures the 

rate

 

of

leakage (in percentage of loss from 0 to 100%).

2.

With the aid of the Cylinder Leakage Tester, the operator may also locate the

source

 of the leakage by listening at these places:

A.

 Oil dipstick tube for bad rings, cylinder leakage.

B.

 Radiator filler for cylinder wall cracks.

C.

 Adjacent port for head gasket leakage.

D.

 Tail pipe for exhaust valve leakage.

E.

 Carburetor air horn for intake valve leakage.

F.

 Fuel injection throttle body for intake valve leakage.

SKU 04317

PAGE 4

2.

MAINTAIN A SAFE WORKING ENVIRONMENT.  

Keep the work area well lit.

Make sure there is adequate surrounding workspace and ventilation.  Always
keep the work area free of obstructions, grease, oil, trash, and other debris.

Brought to You by Augusta Flint

Summary of Contents for 04317

Page 1: ...ttp www harborfreight com Copyright 2002 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the expres...

Page 2: ...RK AREA Do not allow children to handle this product 3 STORE IDLE EQUIPMENT When not in use tools and equipment should be stored in a dry location to inhibit rust Always lock up tools and equipment an...

Page 3: ...duct Approved accessories are available from Harbor Freight Tools 12 MAINTAIN THIS PRODUCT WITH CARE Keep this product clean and dry for better performance 13 MAINTENANCE For your safety service and m...

Page 4: ...call Harbor Freight Tools at the number shown on the cover of this manual as soon as possible PRODUCT OVERVIEW 1 The Cylinder Leakage Tester is a tool through which compressed air is supplied to each...

Page 5: ...e not included with the probe removed 6 The Leakage Gauge part 4 readings may vary 10 or more when making repeat tests on the same cylinder s The piston position and the temperature of the engine can...

Page 6: ...age Tester 6 Make sure the Regulator Knob part 5 is turned fully counterclockwise and connect the Cylinder Leakage Tester to an air compressor NOTE set the air compressor s regulator from 45 to 100 PS...

Page 7: ...ER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT IN FACT THE MANUFACTUER AND OR DISTRIBUTOR EXPRESSLY STATES THAT AL...

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