1985 Johnson 15 Wet Plugs

mbarbian

Recruit
Joined
Sep 14, 2012
Messages
2
Hi,
New to the forum but found the help great. I searched for this issue but couldn't find an answer. Maybe someone can help.

I have wet (water) plugs on a 1985 Johnson 15. I have changed out the fuel so I don't think it's coming from there. Looking at some of the other posts it has been recommended to replace some gaskets.

I'm up for replacing the gaskets but I'm not sure which ones may be responsible for my wet (water) plugs. My choices are:

GASKET, Water cover (Seem like this one for sure)
GASKET, By-pass cover (I don't know what this one does)
GASKET, Thermostat (dont know)
GASKET, Cylinder head (seems like this one)
GASKET, Exhaust cover (Don't know)
POWERHEAD GASKET SET (Seems like more than I need)

Any help would be great. Thanks,
Mark
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: 1985 Johnson 15 Wet Plugs

Replace them all, Mark. I think the head gasket is the most likely suspect, but any of them can cause your problem.
 

raczekp1

Lieutenant
Joined
Mar 30, 2010
Messages
1,327
Re: 1985 Johnson 15 Wet Plugs

in powerhead gasket set you will get all gaskets used on powerhead(1 set for 1 powerhead).
but from this set you should change:head gasket, water bypas gaskets(there are 2 gaskets), and base gasket
 
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