Need Help I can’t get Johnson 55hp Motor to run right at all

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,858
In my opinion when you acquire a 50 year old motor you need to do a complete evaluation before spending any beer tokens.---Post actual compression values here.----If around 140 PSI ,look for and find a used lower unit.
 

brodyg201

Seaman Apprentice
Joined
Sep 26, 2024
Messages
45
In my opinion when you acquire a 50 year old motor you need to do a complete evaluation before spending any beer tokens.---Post actual compression values here.----If around 140 PSI ,look for and find a used lower unit.
yeah i’m still waiting on a compression tester to arrive
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,858
What does the spline on the end of the driveshaft look like ?----Full of rust?----If so the spline in the crank may be damaged / weak.---A potential failure point.
 
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