Table of Contents
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Air escaping from crankcase breather ...................................................... Rings or cylinder worn.
Air escaping from exhaust system ............................................................ Defective exhaust valve/improper seating.
Air escaping from carburetor ..................................................................... Defective intake valve/improper seating.
Gauge reading in "low" (green) zone ........................................................Piston rings and cylinder in good condition.
Gauge reading in "moderate" (yellow) zone ............................................Engine is still usable, but there is some
Gauge reading in "high" (red) zone .......................................................... Rings and/or cylinder have considerable
Leakdown Test Results
Troubleshooting
wear present. Customer should start
planning for overhaul or replacement.
wear. Engine should be reconditioned or
replaced.
Section 3
3
3.5
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Table of Contents
Troubleshooting
