Reply To: NIB 57 7.5 Evinrude

[Bob Wight]

It looks like it may have been run at some time as some of the paint has burned off the exhaust cover, some paint is flaking around the head gasket and some paint has worn off the lower unit.  The throttle linkage does look all gummed up with dried grease.   Guess I would start with soaking the cylinders with some penetrating oil and try to get it freed up.   I would use a strap wrench to try turning the flywheel instead of using a breaker bar on the flywheel nut.    Also tap on the pistons with a wood dowel.

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."