1993 Johnson Evinrude "ET" 40 thru 55 Service Repair Manual, P/N 508283, Page 332Get this manual

1993 Johnson Evinrude "ET" 40 thru 55 Service Repair Manual, P/N 508283, Page 332

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IMPACT RELIEF 1 When the engine hits an underwater obstruction, extreme pressure develops above the piston
2 The extreme pressure must be vented and the cylinder rod must extend to allow the eng

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