Reply To: Anodes on Evinrude 18 hp 1960

[Bob Wight]

I never use anti-sieze compound in any of my outboard restorations.   As Mumbles said, it makes a big mess and as Dave noted, many anti-sieze products contain copper which can have a bad reaction with the outboard’s aluminum, also making the bolts harder to remove in the future.   A company called Jet-Lube makes a marine grade anti-sieze product that supposedly does not contain any metal compounds but I’ve never tried it.   If a bolt or gasket may be in contact with water, I typically use the Permatex Aviation #3 gasket sealer.    So for me, it goes on the crankcase bolt threads, cylinder head bolt threads, on the exhaust cover gaskets and on the powerhead base gasket where it attaches to the exhaust section.  Here where I live with warm salt water, local marine mechanics use a waterproof grease on these same bolts or a Teflon based pipe thread sealant.   There are a lot of folks here at AOMCI more knowledgeable than me, but I am only sharing what has worked well for me.

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."