1979 Evinrude Outboard V-6 Models Service Repair Manual Item No. 5431, Page 178Get this manual
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7 Catch lost oil with rag and drip VALVELEAKAGETEST
93378 93312
Figure 9-9 Pressure Test Set-up
1 NOTE Tighten gauge units lightly (5-10 inchpounds (0.6-1.20 Nm))Excess