1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 183Get this manual

1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 183

Cleaning and Inspection 1Inspect clamp screw assemblyReplace swivel plate and retainer if bent or looseTo install new swivel
checking the exhaust housing for distortion, thoroughly clean the top and bottom mating surfaces and remove all sealer and
corrosionon surface plateUsing dial indicator, check flatness by measuring the run-out on the top edge of the housingThe
maximum allowable run-out is 0.009 in(0,228 mm)If you do not have access to dial indicator and surface plate, seek the services
of machine shopDO NOT attempt to straighten distorted housing; replace itA bent exhaust housing will cause upper driveshaft
splines to wear excessively, and will also damage crankshaft splines7Inspect water tube for obstructions or kinks, which
may restrict water flow8Inspect shift components for wearReplace if deteriorated or damaged [!] 6Check the exhaust housing