Freeze Plug

[dosched]

I have a 1979 34' MK I Mainship trawler with the Perkins 6.354 engine. My starter motor just went bad and the repair shop said water was getting into it and I should check the freeze plug for corrosion. Has anyone ever dealt with this? Where is the plug located?
Thanks

 

[Gdavid]

I don't believe there are freeze plugs above the starter on the 6.354 but the water-cooled exhaust manifold is directly above as well as the raw water line from the manifold to the exhaust elbow so I would examine those as likely sources of a leak. I was surprised by this when I went to install my block heater and the port side of the engine is more cluttered and a pain to access the freeze plugs.

If you had a bad freeze plug, you would be losing coolant and notice the level being low, but raw water wouldn't impact your coolant level.

 

[dosched]

freeze plug

Thank you for the quick reply. I'm no mechanic but will start looking around the places you suggested.