Reply To: 1954 7516 Evinrude Water Test

[Don]

OK, from the photo you sent using the drill, it would appear that the water pump is working properly and producing enough pressure…

There might be an issue with the base gasket you are using..  There are THREE different types of base gaskets that this engine family used during the years, and unfortunately, they will all “fit” and the screw holes will line up.   But, using the wrong base gasket will create a water leak between the exhaust housing and the powerhead…

Perhaps you can post a picture of the base gasket you are using…