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Gearcase Seal 1990 Evinrude 70

StevieP

New member
Howdy,

Picked up some tune-up parts for my 1990 Evinrude 70. The seals supplied with the gearcase oil do not match what are on the drainplugs. The the seal on the upper is damaged and needs to be replaced. It appears to be an o-ring. The parts supplied are plastic washers. Does anyone know what size the o-ring is? I can take the parts back but there are plenty of hardware shops closer than my local marine parts distributor.
Thanks.
 
Some of those plugs use O-rings.-----You can use the nylon washers with o-ring plugs.-----Change the plugs out to the washer style next time.
 
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