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1.2L REVOTRON ENGINE
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3. Insert the cone adapter with vacuum gun into
the radiator filler neck (no loss tank) or
coolant aux tank; make sure the refill hose
valve is closed.
4. Turn on the air supply and Press the knob,
allow the vacuum level to reach
approximately 20-25 in Hg (50-60 cm Hg)
and release the knob (The gauge reading
may be slightly less in higher elevations but a
proper vacuum should still be reached within
3 minutes). Let the system hold for 20
seconds to observe for a drop in vacuum.
CAUTION
A drop in the gauge reading within 20
seconds indicates a vacuum leak in the
system, which will require locating and
rectifying the leakage before proceeding
further.
NOTE
During this procedure the radiator hoses will
collapse under the vacuum being generated
- this is normal.