'77 41 O/I repower...

SunSeekerOI · #1 (**permalink**) 11-19-2006

Has anyone repowered with a Yanmar? If so, please send whatever info and recommendations you may have. Thanks

Irwin54 · #2 (**permalink**) 12-14-2006

I repowered my 1976 OI 414 back in 96 with a Yanmar 75 HP engine. What an upgrade!!
No need to cut open the cockpit floor. The old engine went out and the new one in through the aft cabin/wlk through.
What would you like to know?

CaptainForce · #3 (**permalink**) 12-24-2006

I repowered my '73 morgan OI 413 with a yanmar 4jh3e 56hp after removing the original westerbeke in 2000. Removal and installation was relatively easily accomplished under the forward steps (not a walkthrough model). I put an 18x14 prop on my 1-1/4" shaft and cruise at 6.5kts while running at 2700rpm. I'm very pleased with about 3,000hrs. now on my very reliable yanmar.