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 « September 9th, 2025, 5:56 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...
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Last post

Lifters for 2001 Mercruiser 350 MPI

Last post by Viper « April 5th, 2023, 6:50 am
Replies: 7
by Dark Horse » October 14th, 2022, 3:11 pm

I have 2 350 Mercruiser MPI in My 2001 350 mariner.
One of the motors has a lifter tick I just cant eliminate.
I am going to put a new set of...

7 Replies

3025 Views

Last post by Viper View the latest post
April 5th, 2023, 6:50 am
Fuel consumption 4207 with Mercruiser 350s

Last post by MyPleasure « April 4th, 2023, 3:21 am
Replies: 7
by bobwhorn » February 19th, 2023, 11:18 am

Is there a chart of fuel consumption at different sppeeds/RPMs? Coming from a sailing background where that was never an issue.
Thanks,
Bob

7 Replies

2543 Views

Last post by MyPleasure View the latest post
April 4th, 2023, 3:21 am
Gas smell....355 Carver..

Last post by bud37 « March 30th, 2023, 1:08 pm
Replies: 17
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by benica » March 22nd, 2023, 8:03 pm

Now ventilated.
Floor boards removed...fans blowing.
Issues? Did not top off the tanks. 3/4 level each tank..
1 tank Port...1 tank SB...3rd...
17 Replies

4864 Views

Last post by bud37 View the latest post
March 30th, 2023, 1:08 pm
Raw water system cleaner

Last post by Youghster « March 17th, 2023, 4:30 pm
Replies: 2
by Youghster » March 16th, 2023, 9:58 pm

I'm thinking to clean the heat exchangers on my 5.7 Crusaders. I saw a utube video that featured "Barnacle Buster" and, if it works, I'm...

2 Replies

1228 Views

Last post by Youghster View the latest post
March 17th, 2023, 4:30 pm
Kohler 6.5kw gas generator

Last post by tomschauer « February 9th, 2023, 9:03 am
Replies: 5
by Franklt1 » February 6th, 2023, 4:57 pm

I have a Kohler generator and not getting fuel to the fuel filter. I have replaced all fuel lines, fuel filter, fuel pump and main circuit board....

5 Replies

1641 Views

Last post by tomschauer View the latest post
February 9th, 2023, 9:03 am
Need Starboard Starter ID 1993 Carver Mariner 330

Last post by Cooler « February 2nd, 2023, 1:46 pm
Replies: 2
by LuckyRuby330 » January 16th, 2023, 8:45 pm

Greetings,

I have a 1993 Mariner 330 with twin Crusaders 350XL/305CI My starboard starter motor failed. I have been trying to find a replacement,...

2 Replies

1467 Views

Last post by Cooler View the latest post
February 2nd, 2023, 1:46 pm
Risers

Last post by tonyiiiafl « January 2nd, 2023, 7:12 pm

by tonyiiiafl » January 2nd, 2023, 7:12 pm

My 1994 390 CPMY has 7.4 carb Mercruiser (GM) engines, closed cooled, full system. Stamped on exhaust riser is 807988-C. I see numbers ending in A3,...

0 Replies

1115 Views

Last post by tonyiiiafl View the latest post
January 2nd, 2023, 7:12 pm
1994 7.4 390CPMY Mercruiser risers

Last post by paulr « December 22nd, 2022, 4:50 pm
Replies: 4
by tonyiiiafl » September 25th, 2022, 6:10 pm

Closed cooling, risers only, manifolds are anti-freeze cooled. Just completed season 6 on the risers, so it should be time for replacement. It is a...

4 Replies

1848 Views

Last post by paulr View the latest post
December 22nd, 2022, 4:50 pm
Onan MCCK 6.5KW GenSet ignition coil search

Last post by Viper « December 16th, 2022, 8:45 pm
Replies: 1
by rictamily » December 16th, 2022, 10:12 am

Hi,

Does anyone know where I can buy an ignition coil part number 166-0382? Generator info is:

model/ spec number is 6.5 mcck - 3cr/1h

Class= F...

1 Replies

1679 Views

Last post by Viper View the latest post
December 16th, 2022, 8:45 pm
Source for rebuilt Velvet drives?

Last post by waybomb « December 7th, 2022, 6:53 pm
Replies: 10
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by waybomb » October 21st, 2022, 4:34 pm

Bringing the boat over to the marina for winter storage, blew the starboard Trans.
Is there a reliable rebuilder out there. As close to michigan as...
10 Replies

3605 Views

Last post by waybomb View the latest post
December 7th, 2022, 6:53 pm
1997 Carver Aft 355 with twin Crusaders.. 7.4's...

Last post by Viper « December 6th, 2022, 10:23 pm
Replies: 6
by benica » December 6th, 2022, 6:33 am

Hopefully, I can help another when the time comes...
Today I need some ideas...
Started out on a 7 day boat ride...
Fresh oil, fuel, plugs, wires,...

6 Replies

2032 Views

Last post by Viper View the latest post
December 6th, 2022, 10:23 pm
Carburetor for 7.5 KW Generator

Last post by gctiii « November 10th, 2022, 7:07 am
Replies: 10
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by gctiii » November 6th, 2022, 3:44 pm

Hi all you smart boat mechanics and suppliers. I am the owner of a 1990 model 3557 Montego.

I have a serious dilemma; I am looking for operable...
10 Replies

4035 Views

Last post by gctiii View the latest post
November 10th, 2022, 7:07 am
Fuel cut off valves

Last post by Cooler « October 28th, 2022, 10:50 am
Replies: 2
by Rckafla77 » October 27th, 2022, 2:48 am

I am in 19 9028 foot carver mariner and I can’t find out I can’t figure out where the fuel valves are and only thing I can think of for the engine...

2 Replies

1626 Views

Last post by Cooler View the latest post
October 28th, 2022, 10:50 am
33ss 8.1 crusader engines fluctuating rpms HELP

Last post by cpoint « October 24th, 2022, 1:43 pm
Replies: 35
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by mrterry72@gmail.com » August 27th, 2021, 6:35 pm

On my 33ss we ran about 3 hours and the starboard engine rpm went from 3000 to 2500 back to 3000 then to 1700 rpm pack to 3000 and so on .. I...
35 Replies

25090 Views

Last post by cpoint View the latest post
October 24th, 2022, 1:43 pm
Tune up needs another going over

Last post by Cooler « October 18th, 2022, 8:13 am
Replies: 10
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by tonyiiiafl » October 16th, 2022, 5:24 pm

Brought the old gal up the river to winter storage. Ran great, or so I thought. Started fine, idled supreme and moved along at 3,000 perfectly. I...
10 Replies

3475 Views

Last post by Cooler View the latest post
October 18th, 2022, 8:13 am
WHAT are people thinking who THINK they are a mechanic ?

Last post by KyleR « October 11th, 2022, 5:06 pm
Replies: 10
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by tonyiiiafl » September 17th, 2022, 8:24 pm

I have been around gas engines many years, but my forte are diesel engines. Old school Detroits, Series 60’s and some Cummins.

My engines have been...
10 Replies

2737 Views

Last post by KyleR View the latest post
October 11th, 2022, 5:06 pm
MEFI-4 Idle Hunt at Start Mystery

Last post by bud37 « October 8th, 2022, 7:57 pm
Replies: 17
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by Delorean6855 » August 22nd, 2022, 12:37 pm

Am struggling with a mystery.

I have twin 2004 crusader 6.0s. On any start, hot or cold, the engine hunts for idle with wide swings. It settles...
17 Replies

3884 Views

Last post by bud37 View the latest post
October 8th, 2022, 7:57 pm
2007 Carver Mariner help!

Last post by Cooler « October 3rd, 2022, 7:06 am
Replies: 6
by JPS » October 1st, 2022, 12:36 pm

I’m at wits end with my 2007 Carver Mariner equipped with 5.7 MPI Crusader gas engines.

The problem is that after about an hour of moderate load on...

6 Replies

2720 Views

Last post by Cooler View the latest post
October 3rd, 2022, 7:06 am
1997 325 engine replacement

Last post by gwhynot « September 29th, 2022, 6:07 am
Replies: 2
by gwhynot » September 27th, 2022, 6:55 am

Morning all,
My port engine has a rod knock and needs to be replaced, anyone have any experience or any tricks on the removal and the installation...

2 Replies

1403 Views

Last post by gwhynot View the latest post
September 29th, 2022, 6:07 am
Quick Tip: Cleaning a Crusader 6.0 Heat Exchanger

Last post by mjk1040 « September 18th, 2022, 4:19 pm
Replies: 3
by Delorean6855 » September 11th, 2022, 2:47 pm

In case this helps someone else...probably would work for other HE's I'm sure.
My port engine was running a little hotter (pushing 180 degrees) at...

3 Replies

1684 Views

Last post by mjk1040 View the latest post
September 18th, 2022, 4:19 pm
Gas in Exhaust

Last post by RobGunn « September 13th, 2022, 8:49 am
Replies: 17
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by hinzee623 » September 12th, 2022, 7:39 am

Hi All,
Yesterday noticed an abnormal amount of gas in my starboard engine exhaust. At first, I thought I might have flooded the engine, so waited...
17 Replies

3942 Views

Last post by RobGunn View the latest post
September 13th, 2022, 8:49 am
1994 GM 7.4 Edelbrock Carbs, Gen V

Last post by tonyiiiafl « September 12th, 2022, 3:48 pm
Replies: 9
by tonyiiiafl » September 5th, 2022, 5:38 pm

Looking for what you all use for spark plugs. I have right now NGK BR6FS in there. AC has the M$43T listed.

I am not a Champion person

9 Replies

2051 Views

Last post by tonyiiiafl View the latest post
September 12th, 2022, 3:48 pm
2 part post, start with 454 carbs

Last post by RobGunn « September 6th, 2022, 8:55 am
Replies: 5
by tonyiiiafl » September 3rd, 2022, 1:07 pm

My 390 has 454 Carbed engines. The starboard is newer with 125 hours. Been about 4 years and I am ready to replace spark plugs. NOT. lot of room in...

5 Replies

2176 Views

Last post by RobGunn View the latest post
September 6th, 2022, 8:55 am
1988 Santego 30 - Throttle position to engage reverse is very very far back

Last post by uchu « September 5th, 2022, 6:36 pm
Replies: 5
by theorifice » August 22nd, 2022, 10:52 am

The throttle position to engage reverse appears to be very far into the travel. It has made getting into reverse with small amount of thrust...

5 Replies

2081 Views

Last post by uchu View the latest post
September 5th, 2022, 6:36 pm
Hurth Transmissions on 1994 390 CPMY, 454’s

Last post by tonyiiiafl « September 3rd, 2022, 2:38 pm
Replies: 4
by tonyiiiafl » September 3rd, 2022, 1:12 pm

Been getting a squeak on transmissions, mainly starboard between 750 and 900 when motoring forward. Above or below don't hear it. Pretty much same as...

4 Replies

1623 Views

Last post by tonyiiiafl View the latest post
September 3rd, 2022, 2:38 pm

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