Compression Test
Normal Compression Pressure
10-12 bar (145-174 psi)
Minimum Compression Pressure
approx. 8.5 bar (123 psi)
Maximum Difference Between Individual Cylinders
1.5 bar (22 psi)
Special Tools:
Equipment
- Digital tester, also performs compression measurement -- Bear D.A.C.E. model 40-960
NOTE:
- Check compression with engine at operating temperature (60-80°C oil temperature).
- Remove all spark plugs for testing.
- Visually inspect spark plugs for:
a. even coloring
b. proper gap
c. formation of deposits (oil, carbon).
Test Procedure:
Test
Fig. 1:
Fig. 2:
