www.swstahl.de
SW-Stahl GmbH
An der Hasenjagd 3
D-42897 Remscheid
Tel. +49 (0) 2191 / 46438-0
Fax +49 (0) 2191 / 46438-40
E-Mail: [email protected]
BEDIEUNUNGSANLEITUNG
/ INSTRUCTION
MANUAL
21050L
CO2 leak detector
5-piece
GENERAL
This cylinder head leakage tester was designed to test cylinder head gaskets. By using a CO²-
sensitive contrast agent, you can detect any malfunctioning gaskets in the transition section
between cooling system and combustion chamber quickly and easily.
EFFECTIVENESS
The contrast agent changes its color from blue to yellow, as soon as it gets in contact with
combustion gases in the cooling system. Normally, the contrast agent changes its color in the lower
part of the housing. A comparison with the contrast agent in the upper part of the housing makes
visible even the slightest change of color. Both parts of the housing work as a filter at the same
time. An unintentional suction of coolant affects only the sensibility of the contrast agent in the lower
part of it. A leakage of the cylinder head gasket will be shown in the upper part of the housing.
Various gases can cause the contrast agent to develop a blue coloring. Thereby, those gases will
be absorbed in the lower part of the housing, while combustion gases will cause a yellow coloring
of the contrast agent in the upper part.
SAFETY ADVICE
While testing, both engine and coolant heat up to a very high degree. Risk of burn! Always keep
an appropriate distance to all parts of the engine and the cooling system. With a running engine,
the cooling system is under pressure. Open the cooling system carefully!
CONTRAST AGENT 1.
The contrast agent should be checked after each testing. Hold the tool in front of your mouth and,
while activating the suction bulb, breathe out slowly. The CO² in your breath should be concentrated
enough to cause a reaction. 2. Contrast agent can be used repeatedly. Therefore, activate the
suction bulb several times, until a greenish-blueish coloring appears. 3. Avoid any pollution of the
contrast agent: Acid, soap etc. cause a color change. 4. The contrast agent is free from acid/base
and is not harmful. It may cause a discoloration of clothing though, when getting in contact with it.
5. A change of color to a slight green can be caused through storage. This is normal and does not
affect its effectiveness and sensibility.
MAINTENANCE
In case of an unintentional suction of coolant, clean the tester with washing up liquid and rinse with
water.
Dry the tester before refilling with new contrast agent.
Never use bases, soaps or paint
thinner for cleaning
.
