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Water on spark plugs
Old Bay	#1  Posted on 07/05/17 - 5:50 AM
Member Posts: 27 Comments: 0 Joined: 04/29/14	Hi, I have a 1993 Johnson 88 SPL 2-stroke on my 1961 16' Nauset. After it was running rough while cold I pulled the plugs and found water on the right head/bank, but not on the left (V4 motor). These engines have both a head gasket and a water jacket with a gasket, the water jacket sits on top of the cylinder head. I am worried about snapping bolts on a 24 year old engine, and want to disassemble as little as possible. Is there any way to determine whether it's the head gasket or water jacket gasket that's bad? Or I do I have to cross my fingers and replace both the head and water jacket gaskets? The motors runs fine once warm and makes full power, but I'm sure that won't last long with water intrusion. 1961 Nauset 16
Old Bay	#2  Posted on 07/05/17 - 8:18 AM
Member Posts: 27 Comments: 0 Joined: 04/29/14	Never mind, I took the head off no problem. 1961 Nauset 16
EJO	#3  Posted on 07/06/17 - 10:43 AM
Member Personal Page Posts: 669 Comments: 6 Joined: 11/25/12	And which one was it? Skipper E-J m/v "Clumsy Cleat" a 2008 Montauk 150
Old Bay	#4  Posted on 07/11/17 - 6:23 PM
Member Posts: 27 Comments: 0 Joined: 04/29/14	It was a blown head gasket. The water jacket gasket was fine. 1961 Nauset 16
EJO	#5  Posted on 07/12/17 - 9:49 AM
Member Personal Page Posts: 669 Comments: 6 Joined: 11/25/12	Thanks, Happy boating Edited by EJO on 07/12/17 - 9:49 AM Skipper E-J m/v "Clumsy Cleat" a 2008 Montauk 150