Engine Compression Tester Set
Item 46800
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
When unpacking, make sure that the product is intact and undamaged.
If any parts are missing or broken, please call 1-800-444-3353 as soon as possible.
Visit our website at: http://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 express written consent of Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing improve-
Manual Revised 11b
ments, actual product may differ slightly from the product described herein. Tools required for assembly and service may not be included.
SPECIFICATIONS TABLE
Material Carbon Steel, Hardened Tips, High Pressure Hose
Finish Chrome Plated Guage, Black Oxide Adapters with Zinc
Weight 11 lb
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, applications
instructions, inspection, maintenance, and cleaning procedures. Keep your
invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.
GENERAL SAFETY WARNINGS AND PRECAUTIONS
1. KEEP WORK AREA CLEAN AND DRY. Cluttered,
damp or wet work areas invite injuries.
2. KEEP CHILDREN AWAY FROM WORK 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 and keep out of reach of children.
4. DO NOT USE THIS PRODUCT IF UNDER THE INFLUENCE OF ALCOHOL OR
DRUGS. Read warning labels on prescriptions to determine if your judgment or reexes
are impaired while taking drugs. If there is any doubt, do not attempt to use this product.
5. USE EYE PROTECTION. Wear ANSI approved safety
impact eyeglasses when using this product.
6. DRESS SAFELY. Non-skid footwear or safety shoes should be used when working
with this product. Do not wear loose clothing or jewelry as they can become caught
in moving parts. Wear a protective hair covering to prevent long hair from becoming
caught in moving parts. If wearing a long-sleeve shirt, roll sleeves up above elbows.
7. INDUSTRIAL APPLICATIONS MUST FOLLOW OSHA REQUIREMENTS.
8. DO NOT OVERREACH. Keep proper footing and balance at all
times to prevent tripping, falling, back injury, etcetera.
9. STAY ALERT. Watch what you are doing at all times. Use common sense. Do
not use this product when you are tired or distracted from the job at hand.
10. CHECK FOR DAMAGED PARTS. Before using this product, carefully
check that it will operate properly and perform its intended function. Check
for damaged parts and any other conditions that may affect the operation of
this product. Replace or repair damaged or worn parts immediately.
11. REPLACEMENT PARTS AND ACCESSORIES. When servicing, use only
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Page 2For technical questions, please call 1-800-444-3353.SKU 46800
identical replacement parts. Only use accessories intended for use with this
product. Approved accessories are available from Harbor Freight Tools.
12. MAINTAIN THIS PRODUCT WITH CARE. Keep this tool
clean and dry for better and safer performance.
13. MAINTENANCE: For your safety, service and maintenance
should be performed regularly by a qualied technician.
14. USE THE RIGHT PRODUCT FOR THE RIGHT JOB. There are certain applications
for which this product was designed. Do not use small equipment, tools or
attachment to do the work of larger industrial equipment, tools or attachments.
Do not use this product for a purpose for which it was not intended.
15. PRIOR TO USING THIS PRODUCT, READ AND UNDERSTAND ALL
INSTRUCTIONS AND SAFETY PRECAUTIONS AS OUTLINED IN THE VEHICLE
MANUFACTURER’S MANUAL AND ENGINE DIAGNOSTIC/REPAIR MANUALS.
16. WARNING: This product contains or produces 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.)
Page 3For technical questions, please call 1-800-444-3353.SKU 46800
PRODUCT OVERVIEW
The Engine Compression Test Set measures cylinder pressure on dieselequipped cars and trucks. The Gauge (1) features a release valve, 14.5” of high
pressure hose, a dial reading from 0-1,000 PSI, a 0-70 bar, and a swivel end
quick coupler for convenient connection to the Adapters (2 through 14).
APPLICATIONS TABLE
NOTE: All parts mentioned below refer to the parts shown on page 6 of this manual.
Part Application Engine Testing Port Thread
260-05 (Part # 2)
Bacharach
Allow a Bacharach Brand adapter to
be used without tester. No. 260-01
260-14 (Part #3)
260-13 (Part #4)
260-08 (Part #5)
260-04 (Part #6)
260-12 (Part #7)
260-06 (Part #8)
Case, J. I.
Caterpillar 1100 and 3208 series Fuel Injector
Deere, John
Waukesha D155D Fuel Injector
Caterpillar
Cummins
Cummins
Detroit Diesel
Mercedes Benz
70 series, 188 & 207 C.I.D. pencil
nozzle
Early 300, 400 and 500 series, 276,
404, and 531 C.I.D.
“Capsule” type nozzles including
models D-336, 1674, 1676, 3406,
3408 and 3412
These 5.5” bore engines: NH (855
cubic inches), V-6, V-8, V-12 & 903
v-8 Cylindrical PTB
V-185, V210, V225, V555, VT-255,
VT555
53, 71, 92, 110, 149, V53, V71 with
low or high clamp injector hold down
12mm is for Model 300 & 300 Turbo
diesel from 1978 and the 250 &
350 Turbo models. 18mm is for all
regulater Mercedes Benz engines &
model 300 prior to 1978
Fuel Injector
Fuel Injector
Fuel Injector
Fuel Injector
Fuel Injector
Fuel Injector
Glow plug
12mm-1.25
and
18mm-1.50
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Page 4For technical questions, please call 1-800-444-3353.SKU 46800
Part Application Engine Testing Port Thread
260-07 (Part #9)
260-09 (Part #10)
260-02 (Part #11)
260-10 (Part #12)
260-03 (Part #13)
260-11 (Part #14)
Allis Chalmers 6000, 7000, 10000, 11000 Fuel Injector
Bedford 200, 220, 300, 330, 466 Fuel Injector
Case, J. I. All models not using pencil nozzle Fuel Injector
Deere, John 404, 466, 531, 619 Fuel Injector
Fiat Allis
Ford Tractor All Fuel Injector
International
Harvester
Mack Truck
Onan DSL, MDSL Fuel Injector
Waukesha
BMW 2.4 liter Glow plug
Lincoln Continental
Mark VII
Peugeot
Ford/Navistar 6.9 and 7.3 liter Glow plug 10mm-1.00
General Motors 4.3 and 5.7 liter Glow plug 10mm-1.00
Navistar 6.9 and 7.3 liter Glow plug 10mm-1.00
Chevy Luv 1.8 and 2.2 liter Glow plug 10mm-1.25
Isuzu 1.8 and 2.2 liter Glow plug 10mm-1.25
Toyota 1.8 liter Glow plug 10mm-1.25
Audi All Fuel Injector 24mm-2.00
Cummins 6 BT, 4.02” bore, 5.9 liter Fuel Injector 24mm-2.00
Mercedes Benz Cars & trucks with 24 mm ports Fuel Injector 24mm-2.00
Volkswagen All cars and trucks Fuel Injector 24mm-2.00
Volvo All cars and trucks Fuel Injector 24mm-2.00
General Motors 4.3, 5.7, 6.2 liter, 6.5 liter Turbo Glow plug 10mm-1.25
8035-02-300, 8035-02-301, 8035-02302, 8045-02, 8045-03
D/DT 361, D/DT 429, DV 462, DV/
DVT 550, DT/DV/DVT 573, 361, 407
END 405, 457, 475, 510, 519, 605,
672, 673, 674, 711, 864, ENDT-673,
675, 676, 865, 866
These 5.5” bore engines: NH (855
cubic inches), V-6, V-8, V-12 & 903
V-8 Cylindrical PTB
1984 and 1985 car models Glow plug
For Peugeot diesel passenger cars
having either 12mm-1.25mm or
18mm-1.5mm glow plug port holes
Fuel Injector
Fuel Injector
Fuel Injector
Fuel Injector
Glow plug
12mm-
1.25mm
12mm-
1.25mm
12mm-
1.25mm and
18mm-1.5mm
NOTE: When testing through the 12mm-1.25 glow plug port, use the inner portion of part #10.
INSPECTION, MAINTENANCE, AND CLEANING
Before each use, inspect the general condition of the Engine Compression Tester Set.
Check for cracks, breaks, or bends in the equipment, damaged Gauge Hose (1),
and any other condition that may affect its safe operation. If a problem occurs
with the equipment, immediately discontinue its use and have the problem
corrected before further use. Do not use damaged equipment.
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Page 5For technical questions, please call 1-800-444-3353.SKU 46800
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO
THE BUYER 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 MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT
OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF
HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
PARTS LIST / ASSEMBLY DIAGRAM
Part Description Qty
1 Compression Gauge 1
2 Adapter 1
3 Adapter 1
4 Adapter 1
5 Adapter 1
6 Adapter 1
7 Adapter 1
8 Adapter 1
ADAPTER
COMPRESSION
GAUGE
(#1)
(#2)
ADAPTER
(#3)
ADAPTER
(#4)
Part Description Qty
9 Adapter 1
10 Adapter 1
11 Adapter 1
12 Adapter 1
13 Adapter 1
14 Adapter 1
15 Carrying Case 1
ADAPTER
(#5)
ADAPTER
(#7)
ADAPTER
(#8)
CARRYING CASE (#15)
ADAPTER
(#9)
ADAPTER
(#13)
ADAPTER
(#6)
ADAPTER
(#14)
ADAPTER
(#12)
NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.
ADAPTER
(#11)
ADAPTER
(#10)
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Page 6For technical questions, please call 1-800-444-3353.SKU 46800
LIMITED 90 DAY WARRANTY
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality
and durability standards, and warrants to the original purchaser that this product is free from
defects in materials and workmanship for the period of 90 days from the date of purchase.
This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence
or accidents, repairs or alterations outside our facilities, criminal activity, improper installation,
normal wear and tear, or to lack of maintenance. We shall in no event be liable for death,
injuries to persons or property, or for incidental, contingent, special or consequential damages
arising from the use of our product. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation of exclusion may not apply to you.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the complaint
must accompany the merchandise. If our inspection veries the defect, we will either repair
or replace the product at our election or we may elect to refund the purchase price if we
cannot readily and quickly provide you with a replacement. We will return repaired products
at our expense, but if we determine there is no defect, or that the defect resulted from causes
not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specic legal rights and you may
also have other rights which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
REV 10g
Page 7For technical questions, please call 1-800-444-3353.SKU 46800
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