1998 Johnson Evinrude "EC" Accessories Service Manual, P/N 520213, Page 179Get this manual
Spool Valve Shimming
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procedure must be performed if the spool valve, housing, or seals have been replacedThis procedure can be performed without removing the power steering cylinder from the engine1Place two washers on spool valve and tighten locknut securely
rn theMeasureflange withofthe spool valve between thelabel this 2length washers and clevis caliperWrite down and
measurement as dimension 25505
3Measure the length of the valve bodyWrite down and label this measurement as dimension
4To find the nominal side gapsubtract dimension from dimensionand divide by two:
5Remove the locknut and washers from the spool valveSave the washers