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1952-1967 Evinrude and Johnson 3 HP Lightwin Tune Up Project
1954-1964 Jonnson CD Series 5.5 HP Seahorse same as Evinrude Fisherman Tune Up Project
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From: jbk
Date: 24 Jan 2007
Time: 06:46:35 -0500
Remote Name: 70.144.20.252
Q1.the pressure relief valves are a one way valve that only lets the crankcase pressure out. so leaving only one in wouldn't work. Q2. i took the crankcase vent hose off the motor and took it to the auto parts store and got a vent hose cap. it has a plug already in the the end. they have alot of different sizes.i used a heat resistant silicone and plugged it in one side. you have to cut it so that the plate in front mashes it in the hole. i have used mine in 95 degree weather and just recently in 22 degrees with no problems. Q3. i have read the duckworks article also i looks like that method is more involved and i would be afraid some silicone would leak into the wrong passage.