Get the larger alternator. Also, remember that AGM batteries are taller than lead acid batteries. You'll also need a new charger that can charge AGM batteries. Get a charger that has a switch for use with AGM, gel or lead acid batteries.
Alan Bergen 35 Mk III Thirsty Rose City YC Portland, OR On Sat, Oct 14, 2017 at 8:50 AM, DON JONSSON via CnC-List < cnc-list@cnc-list.com> wrote: > Hi > > I previously lamented engine problems on my 1982 C&C 34. I had the > original Yanmar 3GMD. The problem was leaking oil from the intake manifold > caused by serious blow back. There is also a transmission problem, where > it doesn't always go into gear. > > So the decision has been made to put a new engine in, and as someone > mentioned over capitalize the boat. But we sail to the outside of > Vancouver Island and up north to where engine problems would be a super > pain. (Soon I will post information about the engine and extra parts in > case anyone is interested. It has an almost brand new exhaust riser on it > built by Gartside.) > > The old engine is out and we are now sound insulating the engine > compartment. > > The boat currently has an ice box but putting in refrigeration is high on > the list. Getting ice rapidly becomes a challenge as you head off. This > would imply more battery power and an alternator to keep it going. We are > looking at a Beta 25 for which you can get a 75 or 120 amp alternator. > Because of limited battery space I'm thinking of using AGM batteries which > you can suck more amps out of. > > Has anyone got some words of wisdom and/or experience with this? > Including what is the minimum amount of available amp hours you need? The > water is cold up here and it usually doesn't get too hot. It seems with > AGM batteries you need a fair bit more charging capability. > > Although the refrigeration project is a little further off I don't want to > but too small of an alternator now. > > Thanks > Don Jonsson > Victoria, B.C. > > > _______________________________________________ > > The bills have started coming in for the year 2018 and have gone up > again. October will be our fund raising month. Please consider sending a > small contribution to help keep this list running. Use PayPal to send > contribution -- https://urldefense.proofpoint. > com/v2/url?u=https-3A__www.paypal.me_stumurray&d=DwICAg&c= > clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r= > 9w3G7Cf8YfQnrjmtuNxwDJYr3JMv9f1pAfgAJ9xXYQQ&m=XGof74pLEND1qFaKWhayB3- > Emn9Lav4WhEvam_xO4uA&s=DesOVq9iSgUZdqDCfyQTcaS9Gd-oIih8XnHBfOPlmJw&e= > > All contributions are greatly appreciated! > -- Alan Bergen 35 Mk III Thirsty Rose City YC Portland, OR
_______________________________________________ The bills have started coming in for the year 2018 and have gone up again. October will be our fund raising month. Please consider sending a small contribution to help keep this list running. Use PayPal to send contribution -- https://www.paypal.me/stumurray All contributions are greatly appreciated!