Leaky head nut ....help please

flatheadv8

Senior Member
I have coolant leaking from the head bolt on the right side of my 85hp flathead. Is this stud going into a water jacket with coolant leaking up through the threads or is it not a stud into a water jacket and the coolant is leaking to due the head gasket? How do I fix it? I have observed no coolant in the oil. Thank you for the help.
 

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several of the studs go into the water jacket. pull the stud , you may have to remove the head, and use a sealant on the threads. You may get by by re torquing the head nuts. These leaks are rather common.
 
several of the studs go into the water jacket. pull the stud , you may have to remove the head, and use a sealant on the threads. You may get by by re torquing the head nuts. These leaks are rather common.

Got it thanks for the help!! I added a bit of sealant and re- torqued the head nuts! :D
 
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