Owner manual

OPERATING INSTRUCTIONS
KIT #3612 AND KIT #3614
KIT #3612 — COMPONENTS
KIT #3614 — COMPONENTS
COMPRESSION
TESTER
30
60
90
120
150
180
210
240
270
300
0
2
4
6
8
10
12
14
16
18
20
kPa x 100
PSI
0
IEC
1
2
3
4
ITEM DESCRIPTION
1 Compression Gauge
2 14 mm Adapter
3 Spark Plug Hose Assembly (Rubber)
4 12 mm Adapter
COMPRESSION
TESTER
30
60
90
120
150
180
210
240
270
300
0
2
4
6
8
10
12
14
16
18
20
kPa x 100
PSI
0
IEC
1
2
3
5
6
4
ITEM DESCRIPTION
1 Compression Gauge
2 14 mm Adapter
3 12 mm Adapter
4 Spark Plug Hose Assembly (Braided Stainless Steel)
5 Direct Shaft
6 10 mm Adapter
 IEC 1997
In this example, the highest compression reading is 140
psi. The lowest allowable reading would be 105 psi (140
psi X 0.75). The lowest reading (115 psi) is within the
allowable range.
DIAGNOSIS
1. On a normal cylinder, compression should increase
quickly and uniformly during each compression stroke
of the engine until a top (or peak) reading is reached.
2. If compression is low on the first stroke, builds up on
following strokes, but does not reach normal value, the
piston rings may be worn or leaking.
3. If compression is low on the first stroke and does not
increase on following strokes, leaking valves may be at
fault.
4. If the compression value is higher than the
manufacturer's specifications, carbon build-up may be
present in the cylinder or on the piston.
5. If compression readings on two adjacent cylinders are
20 pounds (or more) lower than the other cylinders, the
cylinder head gasket may be defective.
6. Recheck cylinders with low compression readings by
injecting approximately one tablespoon of medium-
grade oil into each cylinder (through the spark plug
hole) and retesting. If compression readings increase,
worn, broken, or poorly seated piston rings are
indicated. If compression readings remain the same,
leaking or damaged valves may be at fault.
7. Before re-installation of spark plugs, clean and re-gap
all plugs. Reinstall spark plugs. Reconnect plug wires,
paying close attention to the cylinders from which they
were removed. Crossing spark plug wires will result in
rough running, misfiring, poor gas mileage, and may
cause damage to the catalytic converter or the engine.
8. Be sure to return the throttle plate to it's original
position, and reconnect the coil wire or reconnect the
ignition system primary connection.
NOTE: Periodically examine the valve core at the
14MM/18MM hose end for tightness using a standard
valve core tightening tool.
WARRANTY AND SERVICE
The Manufacturer warrants to the original purchaser that this unit is
free of defects in materials and workmanship under normal use and
maintenance for a period of one (1) year from the date of original
purchase. If the unit fails within the one (1) year period, it will be
repaired or replaced, at the Manufacturer's option, at no charge, when
returned prepaid to the Service Center with Proof of Purchase.
Installation labor is not covered under this warranty. The sales receipt
may be used for this purpose. This warranty does not apply to
damage caused by improper installation, accident, abuse, improper
voltage, fire, flood, lightning, or other acts of God, or if the product
was altered or repaired by anyone other than the Manufacturer's
Service Center. The Manufacturer, under no circumstances shall be
liable for any consequential damages for breach of any written
warranty of this unit. This warranty gives you specific legal rights, and
you may also have rights which vary from state to state. THIS
WARRANTY IS NOT TRANSFERABLE. For service, send (prepaid)
via U.P.S. (if possible) to manufacturer. Allow 3-4 weeks service time.
If you have any questions, please contact your local store, distributor
or the Manufacturer's Service Center. USA & Canada: (800) 544-
4124; All others: [phone] (9:00-4:00, Monday-Friday PST);
FAX: [phone] (24 hr.)
 IEC 1997