Gas Engines/Transmissions

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New Users - Please Read

Last post by CYO Admin « February 6th, 2013, 7:49 am
Posted in Introduce Yourself!

by CYO Admin » February 6th, 2013, 7:49 am » in Introduce Yourself!

CYO is a family friendly, spam free forum. Any posts deemed inappropriate, containing personal attacks and/or bashing/slamming a person or company...

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Last post by CYO Admin View the latest post
February 6th, 2013, 7:49 am
Welcome to CarverYachtOwners.com!

Last post by Viper « November 11th, 2025, 5:34 pm
Posted in Introduce Yourself!
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by CYO Admin » January 30th, 2013, 9:07 am » in Introduce Yourself!

Welcome to CarverYachtOwners.com!

It's always confused me as to why no one ever started a carver specific message board, so here it is.

I hope you...
357 Replies

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November 11th, 2025, 5:34 pm

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2002 Carver 346 6.2 MPI coolant

Last post by NHCarver346 « March 1st, 2026, 2:47 pm
Replies: 11
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by Pha8 » March 31st, 2025, 1:36 am

Looking to drain and replace the coolant in my 2002 Mercruiser 6.2 MPI's. Which coolant would you recommend?
11 Replies

13865 Views

Last post by NHCarver346 View the latest post
March 1st, 2026, 2:47 pm
2005 38SS Port engine removal

Last post by km1125 « February 18th, 2026, 11:38 am
Replies: 1
by Jeffeff » February 16th, 2026, 5:51 pm

Hi all,
We have a 2005 Carver 38SS with Volvo 8.1s that we need to remove the port engine. The Galley and flooring are covering what would be the...

1 Replies

3027 Views

Last post by km1125 View the latest post
February 18th, 2026, 11:38 am
Most economical cruising speed

Last post by Viper « February 4th, 2026, 5:44 pm
Replies: 34
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by MyPleasure » August 13th, 2023, 6:43 pm

Hey there Carver owners, this is our first big block 454 engined Carver, and I was wondering if anyone had any idea of the best cruising speed for...
34 Replies

28116 Views

Last post by Viper View the latest post
February 4th, 2026, 5:44 pm
Winter project questions

Last post by km1125 « January 5th, 2026, 2:11 pm
Replies: 4
by Carverlvr2 » January 3rd, 2026, 9:14 pm

Here’s my thought process…please stay with me, I promise I get to the point and subsequent questions. This past season we had a lot of life changing...

4 Replies

9471 Views

Last post by km1125 View the latest post
January 5th, 2026, 2:11 pm
Equipment Required for Induced misfire test

Last post by paulr « December 29th, 2025, 12:42 pm
Replies: 6
by paulr » May 2nd, 2025, 12:32 pm

Does anyone know how to verify a surveyor's report to verify an " Failed Induced misfire test" on a 2008 8.1 Crusader, Captains Choice,...

6 Replies

7492 Views

Last post by paulr View the latest post
December 29th, 2025, 12:42 pm
Volvo Penta 8.1 Hard/wont start

Last post by Cooler « November 20th, 2025, 12:19 pm
Replies: 10
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by Jskhome62 » November 2nd, 2025, 7:26 am

Hello all. Only posting as a new topic bc after searching for a bit couldnt find anything in the list of engine problems that seemed to relate. If...
10 Replies

21495 Views

Last post by Cooler View the latest post
November 20th, 2025, 12:19 pm
Crusader 5.7 MPI stumbles after 1 hour run

Last post by RyDrew « November 11th, 2025, 10:36 am
Replies: 11
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by RyDrew » October 18th, 2025, 6:06 pm

Hi all, new owner of a 2004 Carver 360 Mariner with twin 5.7 MPI's.
Sea trial no problem. First hour and a half of drive home after purchase was...
11 Replies

18950 Views

Last post by RyDrew View the latest post
November 11th, 2025, 10:36 am
2004 Carver 350 | Wires, Caps, Rotors & Plugs Replaced | Before & After Performance Graph Inside

Last post by MirrorFinishPolishin « November 3rd, 2025, 4:10 pm

by MirrorFinishPolishin » November 3rd, 2025, 4:10 pm

Well, normally I don't do higher RPM with my Carver 350 as I usually just cruise at average speeds (not really ever in a hurry) but decided to get on...

0 Replies

8280 Views

Last post by MirrorFinishPolishin View the latest post
November 3rd, 2025, 4:10 pm
Fuel sender mystery

Last post by Carverlvr2 « October 24th, 2025, 9:38 pm
Replies: 2
by Carverlvr2 » October 24th, 2025, 6:00 pm

Ok. Let’s figure this one out…bought my 04 366 end of last year. Starboard Fuel gauge worked but read lower that port even after fill up. This year...

2 Replies

3531 Views

Last post by Carverlvr2 View the latest post
October 24th, 2025, 9:38 pm
2002 6.2 Mercruiser

Last post by Pha8 « October 18th, 2025, 2:08 am
Replies: 4
by Pha8 » October 2nd, 2025, 7:54 pm

2002 6.2 Mercruiser MX MPI
Ran for 5min fine, then died? Started right up, ran for 30sec, then died. Changed the fuel/water separator, ran for 15sec,...

4 Replies

4394 Views

Last post by Pha8 View the latest post
October 18th, 2025, 2:08 am
Engine maintenance

Last post by pepmyster « October 15th, 2025, 6:59 am
Replies: 2
by MyPleasure » September 11th, 2025, 12:45 pm

Hi everyone,
I think that I’m fairly knowledgeable about gas engines, at least I thought that I was until recently. One of my Volvo Penta 740b...

2 Replies

3723 Views

Last post by pepmyster View the latest post
October 15th, 2025, 6:59 am
Transmission or Engine causing this knock?

Last post by thatchh « October 15th, 2025, 3:26 am
Replies: 12
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by kgarguilo » May 26th, 2025, 4:39 pm

While flushing my engines one at a time, I heard this noise coming from the transmission area. Sounds like a knock or maybe even grinding. It seems...
12 Replies

6837 Views

Last post by thatchh View the latest post
October 15th, 2025, 3:26 am
Starboard temp increase

Last post by thatchh « October 15th, 2025, 3:18 am
Replies: 6
by BRHEAUME » July 7th, 2025, 5:08 pm

On my last trip, I noticed a 10 degree increase on the starboard engine gauge. This engine always heated up faster and ran (according to the gauge)...

6 Replies

49365 Views

Last post by thatchh View the latest post
October 15th, 2025, 3:18 am
Kohler 10E (gas) engine parts (Ford VSG413)

Last post by thatchh « October 15th, 2025, 3:08 am
Replies: 7
by thatchh » September 1st, 2021, 10:09 pm

Hi All,
I have a Kohler 10E in my 396. It has a Ford VSG-413 4 cylinder gas engine with a build date of 2002. The generator has low hours on it and...

7 Replies

7640 Views

Last post by thatchh View the latest post
October 15th, 2025, 3:08 am
Exhaust dampers / flappers

Last post by krawdad « October 6th, 2025, 12:00 pm
Replies: 1
by krawdad » October 2nd, 2025, 6:06 pm

Has anyone ever had to service the exhaust dampers / flappers? ie: the things that keep water backing up the exhaust hose. I did not know there were...

1 Replies

3898 Views

Last post by krawdad View the latest post
October 6th, 2025, 12:00 pm
Vetus wet muffler

Last post by paulr « October 4th, 2025, 6:03 pm
Replies: 4
by pepmyster » August 25th, 2025, 8:30 am

I had the chance to run our genny while in the islands and it was flawless. Met another boater who had the same genny and you could hardly hear it....

4 Replies

3611 Views

Last post by paulr View the latest post
October 4th, 2025, 6:03 pm
Props for 390 Cockpit Motor yacht

Last post by buster53 « October 4th, 2025, 4:09 pm
Replies: 1
by NJboater65 » October 1st, 2025, 1:44 pm

I'm purchasing a 1994 390 Cockpit motor yacht. The props are shot, maybe beyond repairing. Does anyone know what the correct factory size prop is? Or...

1 Replies

3330 Views

Last post by buster53 View the latest post
October 4th, 2025, 4:09 pm
STBD engine has a breathing problem?

Last post by krawdad « October 2nd, 2025, 5:45 pm
Replies: 3
by Pha8 » June 16th, 2025, 1:27 am

2002 Carver 6.2mx Mercruisers

Twin 6.2 mx Mercs, stbd engine has a loud "hiss"?? Not sure if it has a air leak (Vaccume) or filter is...

3 Replies

3561 Views

Last post by krawdad View the latest post
October 2nd, 2025, 5:45 pm
454 crusaders rpm drop from neutral to fwd

Last post by bud37 « September 30th, 2025, 9:09 pm
Replies: 9
by sbb2112 » September 28th, 2025, 9:48 pm

Just wondering about a normal range the rpms will drop going into gear. I have carbed delco ignition with v drives on gas. 1992 vintage.

9 Replies

5600 Views

Last post by bud37 View the latest post
September 30th, 2025, 9:09 pm
Crusader 350XL 5.7 270HP LOCKED 94 Carver 300

Last post by ariannamarie1026 « September 27th, 2025, 5:34 pm
Replies: 18
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by ariannamarie1026 » September 24th, 2025, 2:30 am

Hello Everyone, I need some advice! We’re first-time boat owners of a 1994 Carver 300 Aft Cabin with twin Crusader 350 XL 5.7 engines, purchased in...
18 Replies

7510 Views

Last post by ariannamarie1026 View the latest post
September 27th, 2025, 5:34 pm
8.1 Engine replacement Aft Cabin

Last post by waybomb « September 25th, 2025, 8:38 pm
Replies: 2
by TrueNorthLat38 » September 25th, 2025, 3:59 pm

Anyone replaced the long block in their Aft cabin Carver? I'll looking for advise on how to get that damn thing out of there. I have a 2005 Carver...

2 Replies

4221 Views

Last post by waybomb View the latest post
September 25th, 2025, 8:38 pm
Crusader 350XL won't start.

Last post by wingnut « September 23rd, 2025, 1:39 pm
Replies: 7
by wingnut » September 18th, 2025, 8:09 pm

Boat: Carver 325, 1996, Crusader 350XL.electronic ignition, throttle body injectors.
Suddenly, I have no spark and no fuel at the injectors. Engine...

7 Replies

4639 Views

Last post by wingnut View the latest post
September 23rd, 2025, 1:39 pm
Genset running out of fuel

Last post by bud37 « September 11th, 2025, 4:49 pm
Replies: 42
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by MyPleasure » June 16th, 2024, 4:58 pm

Hi fellas, I’ve been having problems with my genset running out of fuel after running for a while. when I switch positions on the fuel tank selector...
42 Replies

28054 Views

Last post by bud37 View the latest post
September 11th, 2025, 4:49 pm
Data link connector location

Last post by Punch'Eau « August 31st, 2025, 10:17 pm
Replies: 22
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by Punch'Eau » July 28th, 2025, 10:30 pm

Hi, I have the chance to use a Mercruiser computer to check one of my engines for a few days but I can't locate the right connector on the engine....
22 Replies

10858 Views

Last post by Punch'Eau View the latest post
August 31st, 2025, 10:17 pm
Transmission fill tube

Last post by bud37 « August 24th, 2025, 8:28 pm
Replies: 4
by RyDrew » August 24th, 2025, 12:46 pm

I am making a a deposit on a 2004 36 Mariner this week. I'd like to do engine oil and transmission oil samples. Is the Transmission fill tube easily...

4 Replies

5661 Views

Last post by bud37 View the latest post
August 24th, 2025, 8:28 pm

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