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Morning. I have a 2000 Volvopenta 5.0 GIPEFS, raw water
Morning. I have a 2000 Volvopenta 5.0 GIPEFS, raw water cooled, in salt water, in the northeast. Ran well all season. Started to run hot last week, around 180-190 instead of its normal 140-150 (per th… read more
NicholasH311
NicholasH311
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I have a remanufactured late-80s/early-90s 260 hp 5.7L
Good morning, I have a remanufactured late-80s/early-90s 260 hp 5.7L MerCruiser MCM with raw water cooling & log-style exhaust manifolds & elbow risers. Currently have 160-degree thermostat but having… read more
Jason
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I have a 2002 black scorpion (5.7) V-drive. Just rebuilt the
I have a 2002 black scorpion (5.7) V-drive. Just rebuilt the motor and took it out for the initial run. Ran great, water temp at 160 but noticed that the port exhaust manifold is hotter than the starb… read more
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Jason
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I just repowered my 28 bertram with two reman 5.7's these are
i just repowered my 28 bertram with two reman 5.7's these are the older block 010 gm's (pre vortec). i have new risers, manifolds, raw water pump, and all hoses are new. the boat is fresh water cooled… read more
Tan
Tan
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I have a mercruiser 4.3 raw cooled. Running on muffs the exhaust
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Tan
Tan
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Tan My starboard engine runs about 20 degrees hotter than
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Tan
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Hi Tom. I own a 2000 mercrusier 454 serial number 0l621200.
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Tan
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hi i bought a 83 bertram with sea max 351s 1999 models electronic
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capt ron 1959
capt ron 1959
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I have a 1979 Bertram 28 Flybridge Cruiser with original twin
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Jason
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Have a 5.7L I/O with raw water pick-up pump ( replaced impellar
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Jeremy R.
Jeremy R.
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FAO Tan Partin Hi Tan, you where correct, tubes gone in the
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Tan
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converted my v8 mercruiser log stye manifold system to the
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Kenny
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Volvo recommends these engines be run at 2600 rpm. When I
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Captain Dave
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I have twin Mercruiser 8.1 inboards on a Sea Ray 340 sundancer
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Dominick
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I have a 5.0l Mercruiser. A few minutes after starting the
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capt ron 1959
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I have a 2005 Rinker 320 wit twin 5.0 s. The port engine runs
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Captain Dave
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a new Mercruiser 260hp EFI engine.in a 2000 230 Bowrider SEARAY
a new Mercruiser 260hp EFI engine.in a 2000 230 Bowrider SEARAY I have the starboard side of the exhaust manifold much hotter than the port side while running the motor. I can put my hand on the port … read more
Dr Hamman
Dr Hamman
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I have a 5.7 fuel injected I believe about 270 HP factory installed
I have a 5.7 fuel injected I believe about 270 HP factory installed original in a 2000 WA250 Sportcraft engine is running about 190-200 degrees usually stays about 170 this has been a gradual increase… read more
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Ted G.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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