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- CYO Moderator
- Posts: 2371
- Joined: February 5th, 2013, 9:24 pm
- Vessel Info: 1995 Boston Whaler Rage15
1987 3697 Carver Mariner
1988 Cougar 46 Kevlar Vee offshore
1969 15' Glasspar / 1967 Johnson Electromatic 85
1996 Boston Whaler Rage 15
- Location: Saint Joseph,Mi
- Has thanked: 48 times
- Been thanked: 385 times
1969 Glaspar Avalon /1969 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572 ci
1995 Boston Whaler Rage
Past - 1988 2807, 1989 4207 Aft
- Scurvy Dog
- Posts: 39
- Joined: September 13th, 2013, 6:26 pm
- Vessel Info: 1978 Santa Cruz 2866
Moosehead Lake, Maine
- Been thanked: 1 time
But here's my follow-up question before I tackle the above... How do I know what "normal" is? I don't know how many RPMs I should expect at WOT at idle or under way, or how many kts to expect for cruising or WOT. I found some original Carver brochures which claim cruising at 16kts and top 22kts, but that's with twin gas 230's. I have a single gas 270. Not sure what this should do for a 7600lb boat with a modified-V.
Any guesses from experience and/or common sense?
- Posts: 233
- Joined: April 11th, 2013, 6:46 am
- Vessel Info: 1977 Carver Mariner 33'
- Location: Sheboygan, WI
- Been thanked: 3 times
Max RPM's are anywheres from 4000 to maybe 4600 at an average. With your boat being old like mine, I'd just keep it cruising.
There is also the prop that can really change the RPM's too but I am assuming that your previous owner did not play around with that (that I could be totally wrong).
I too am having a few issues with my engines. My port side would not go above 3200 last year. I rebuilt the carbs and retimed the engine. I just blew a freeze plug and spent all day fixing it because it was under the engine mount. Now I am hoping to get the boat in the water next week to see how my improvements work. Who knows?
Good luck with yours and let us know what you did.
22' Godfrey Hurricane Fun Deck, Fiberglass hull, 175 HP, Deck boat
24' Chrysler Cruiseliner III (Lonestar), 120 HP, Aluminum Hull, Cabin, 1968
33' Carver Mariner, fiberglass hull, 520 HP, Yacht, 1977
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