Reply To: 64 Johnson 5.5 hp Powerhead Base Gasket Problem

[Bob Wight]

That should be the correct base gasket. Some things to check for:

– did you also replace the impeller plate? Old one could be warped.
– did you seal the impeller plate to the gearcase housing? Sometimes, they will suck air and not pump water properly.
– check the water tube for blockage or obstructions
– you could have blocked water jackets in the block

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."