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Volvo Penta 7.4L needed ASAP
- pitshop
- Scurvy Dog
- Posts: 9
- Joined: May 23rd, 2017, 6:39 pm
- Vessel Info: 2000 350 Mariner
- Location: South Carolina
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Volvo Penta 7.4L needed ASAP
Thanks in advance,
Skip Williams
Charleston, SC area
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- CYO Supporter
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- Joined: March 28th, 2016, 10:52 pm
- Vessel Info: 1998 Carver 355
Suspicious Fishes !
2022 Kawasaki 310X - Location: upper chesapeake bay
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Re: Volvo Penta 7.4L needed ASAP
You may want to look at the other motor also. These should provide 1000 hours or more if properly maintained and not pushed to the limit all the time. Check the oil, etc. Possibly lack of maintenance or water intrusion?
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- CYO Supporter
- Posts: 2290
- Joined: March 28th, 2016, 10:52 pm
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Suspicious Fishes !
2022 Kawasaki 310X - Location: upper chesapeake bay
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- mjk1040
- Admiral
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- Vessel Info: 1998 355 AC/MY "Deja Vu"
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Re: Volvo Penta 7.4L needed ASAP
I'd Rather Be Boating!
1989 Sea Ray Seville
1986 Carver Mariner 32'
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow
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Re: Volvo Penta 7.4L needed ASAP
Find out what caused the failure. If it was due to an OEM defect, contact Volvo. They may help through good will.
What is the serial number of the block that failed?
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- CYO Supporter
- Posts: 2290
- Joined: March 28th, 2016, 10:52 pm
- Vessel Info: 1998 Carver 355
Suspicious Fishes !
2022 Kawasaki 310X - Location: upper chesapeake bay
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Re: Volvo Penta 7.4L needed ASAP
When they stop making blocks, you will see a core charge for rebuilds.
- pitshop
- Scurvy Dog
- Posts: 9
- Joined: May 23rd, 2017, 6:39 pm
- Vessel Info: 2000 350 Mariner
- Location: South Carolina
- Has thanked: 2 times
- Been thanked: 2 times
Re: Volvo Penta 7.4L needed ASAP
- pitshop
- Scurvy Dog
- Posts: 9
- Joined: May 23rd, 2017, 6:39 pm
- Vessel Info: 2000 350 Mariner
- Location: South Carolina
- Has thanked: 2 times
- Been thanked: 2 times
Re: Volvo Penta 7.4L needed ASAP
Viper wrote:Source of the post GM stopped making 7.4L blocks a while ago but they are still a dime a dozen. Anything "New" will be new old stock. Make sure you get the same generation/build/spec so you have a balanced pair/output.
Find out what caused the failure. If it was due to an OEM defect, contact Volvo. They may help through good will.
What is the serial number of the block that failed?
The serial number is unknown (suspicious sounding, huh?) During the survey, the surveyor did not find the tag and put down "Unknown". Monday, I was digging thru all the paperwork that was left on the boat and discovered what I THINK is the serial number for the PREVIOUS engine, before this one was replaced in 2008. It is 4012022461-3860936. Have no idea if that is for the current engine. Local Volvo dealer said that one was never registered with Volvo.
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- CYO Supporter
- Posts: 2290
- Joined: March 28th, 2016, 10:52 pm
- Vessel Info: 1998 Carver 355
Suspicious Fishes !
2022 Kawasaki 310X - Location: upper chesapeake bay
- Has thanked: 313 times
- Been thanked: 581 times
Re: Volvo Penta 7.4L needed ASAP
The serial number will tell.
- pitshop
- Scurvy Dog
- Posts: 9
- Joined: May 23rd, 2017, 6:39 pm
- Vessel Info: 2000 350 Mariner
- Location: South Carolina
- Has thanked: 2 times
- Been thanked: 2 times
Re: Volvo Penta 7.4L needed ASAP
tomschauer wrote:Source of the post You don't need to use a Volvo block. They buy them from GM and marinize them. All of your Volvo gear will "bolt" on to the new or remanufactured long block. You do want to make certain you use the same series long block. Yours should be the Vortec roller motors, unless someone cheaped out when they last replaced them.
The serial number will tell.
Any idea where to find a serial number, if the tag on the side is no longer legible? I cannot trust the documentation on board, at this point!
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