318 Rebuild / replacement

sckaras
Member
Posts: 11
Joined: Tue Jul 04, 2017 7:52 am
Location: Northern Michigan

318 Rebuild / replacement

Postby sckaras » Fri Jul 27, 2018 2:55 pm

1985 sportsman Marinette - Currently two tired 318's,going to a minimum long block rebuilds, thinking about 360 swap though, any thoughts on good bad or otherwise.

javalin390
Royal Aluminum Star
Posts: 259
Joined: Sat Jan 10, 2015 7:14 pm
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Re: 318 Rebuild / replacement

Postby javalin390 » Fri Jul 27, 2018 3:45 pm

I may be wrong, but I think swapping to the bigger engine different flywheels and other minor details.
Jim Elias
1974 37' SedanFlybridge
Twin 360 Chryslers.
Marblehead, Ohio

EWRice
Royal Aluminum Star
Posts: 251
Joined: Thu Feb 04, 2016 12:37 pm

Re: 318 Rebuild / replacement

Postby EWRice » Fri Jul 27, 2018 9:53 pm

360 requires a different flywheel, harmonic balancer and oil pan.

Make sure your engines are actually wore out (excessive blowby, oil burning, knocking, etc). Of all the calls I get for replacing engines, only about 20% actually need it. The rest are electrical, fuel or tunning issues.
Muskegon Lake
1972 32' Express flybridge
"AL13"
Twin 318s
On board air & prime 920
1963 Thompson Super Sea Lancer
Graymarine 327
1961 Alumacraft 12'
'55 10hp Johnson