We replaced our old Yanmar with a Beta 25 and and new prop and never looked back. Had to do a little work on the engine bed (new angle iron) and the engine was light enough that 2 of us could easily slide it into position.
We went for a fixed 3 bladed Campbell Sailer prop http://www.westbynorth.com/ and got another .75 knot boat speed out of it over the old fixed 2 blade. It works well in reverse. They got the pitch right first time and provided excellent service. Dennis McMillan Andante C&C 34 Victoria BC From: Joe Della Barba <j...@dellabarba.com> Sent: September 17, 2020 1:06 PM To: cnc-list@cnc-list.com Subject: Stus-List Re: Re-power and prop for 1981 C&C Landfall 38 I agree, get yourself a nice Beta 37 ½ HP diesel, and a 3 blade flex-a – fold. I replaced a 4-108 with one of those Kubota’s, the mounting was about 2 inches narrower, I just had to get some 3” aluminum (or maybe 4”) angle to replace the old steel angle. You will be amazed at how much lighter it is from the Perkins. An old slip neighbor also had a 39, he replaced his atomic with a 30 HP Yanmar, and was disappointed with the loss in power. But it will still get you from A to B. Bill Coleman An Atomic 4 puits out 30 HP at 3600 RPM, so unless the original install had the A4 with the reduction gear, something is very wrong with the Yanmar if it cannot equal the A4. Most A4 powered boats with direct drive are maxing out at maybe 22-24 HP. Joe Coquina
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