replacing water cover gasket 40 merc -next step please
Recap - the story so far. Water was coming out around the top plug of my 40hp 1980 merc. the engine was still running and producing power. I brought it home and flushed with fresh water for 45 mins, then removed the plugs and sprayed everything with PB blaster.<br />Then... <br />I've removed (somewaht successfully only broke 2 that were totally corroded) the bolts holding the back plate / head cover? that the spark plugs go thru. <br /><br />Now the cover is off. I see no cracks in the metal parts either the cover or the water jacket. There is grit inside the exposed area of the water jacket and some minor corrosion. I have scraped the old gasket off. <br /><br />should I do anything about the corrosion? Shoudl I clean out the water jacket? Is there a filter somewhere that I should replace so I don't continue to get sand and grit in the water jacket? ( I run in a tidal (muddy ) river often. What kind of gasket seal do I need?<br /><br />Thanks all. <br /><br />Please help. The Stripers and Blues are running hard and the bluefin are just around the corner.
Recap - the story so far. Water was coming out around the top plug of my 40hp 1980 merc. the engine was still running and producing power. I brought it home and flushed with fresh water for 45 mins, then removed the plugs and sprayed everything with PB blaster.<br />Then... <br />I've removed (somewaht successfully only broke 2 that were totally corroded) the bolts holding the back plate / head cover? that the spark plugs go thru. <br /><br />Now the cover is off. I see no cracks in the metal parts either the cover or the water jacket. There is grit inside the exposed area of the water jacket and some minor corrosion. I have scraped the old gasket off. <br /><br />should I do anything about the corrosion? Shoudl I clean out the water jacket? Is there a filter somewhere that I should replace so I don't continue to get sand and grit in the water jacket? ( I run in a tidal (muddy ) river often. What kind of gasket seal do I need?<br /><br />Thanks all. <br /><br />Please help. The Stripers and Blues are running hard and the bluefin are just around the corner.
