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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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Certified Marine Technician
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Engine SN: OW673430, mercruiser 5.0 MPI, drive serial num OW927662.
engine SN: OW673430, mercruiser 5.0 MPI, drive serial num OW927662. use boat in saltwater, engine is open cooled system using seawater for cooling. Temp are running between 185 and 205 on gauge on boa… read more
Tan
Tan
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Freshwater cooled mercruiser bravo 5.7 overheats under load
i have a freshwater cooled 1999 mercruiser bravo 5.7 that overheats under load (really quickly). It will not overheat on the mooring at fast idle. I have replaced the raw water pump, manifolds / riser… read more
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i have twin Mercruiser 305 ci (MIE228) in a 1978 Bertram 28
i have twin Mercruiser 305 ci (MIE228) in a 1978 Bertram 28 the port engine has been overheating with the temp gauge showing rapid increase at higher rpm, then dropping when rpms are reduced and engin… read more
Tan
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Mercruiser 4.3LX V6 with Alpha Gen 2 drives. Thunderbolt Ignition.
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Tan
Tan
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I have a 1974 mercruiser ford 302, raw water cooled with
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Jason
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what causes a 7.4 to run 200 degrees when its twin runs 175
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Jason
Jason
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i have a volvo penta 3.0 gs marine engine that is building
i have a volvo penta 3.0 gs marine engine that is building alot of water pressure through out the cooling system has blown a ciculator pump hose . motor keeps a good temp at 150 degrees and thermostat… read more
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5.7L raw water cooled. Starboard side riser running too hot
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hi there, 1997 38 carver sant. runs hot like 210 degrees and
hi there, 1997 38 carver sant. runs hot like 210 degrees and every part has been changed.454s 650 hours and i am afraid to go far because it will overheat.… read more
Jeremy R.
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Have a 5.7L I/O with raw water pick-up pump ( replaced impellar
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Jeremy R.
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I HAVE A 1985 CHRIS CRAFT FRESH WATER COOLED MERCRUISER 230
I HAVE A 1985 CHRIS CRAFT FRESH WATER COOLED MERCRUISER 230 THAT GOES UP TO 190 DEGREES AT HIGH SPEEDS 2500 RPM OR HIGHER WHERE SHOULD I START LOOKING FOR THE CAUSE I KNOW IT SHULD BE RUNNING AT 160 D… read more
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I have a 1979 mercruiser with 350 chev engine having over heating
I have a 1979 mercruiser with 350 chev engine having over heating problems. How much water should come out of the house right after the stern drive hooked up to garden hose? Trying to trouble shoot pr… read more
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converted my v8 mercruiser log stye manifold system to the
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After a couple of hour run at least 3/4 throttle, my 1999 Mercruiser
After a couple of hour run at least 3/4 throttle, my 1999 Mercruiser 4.3 risers doesn't seem to be heating equally. The starboard riser seems it's normal hot to touch, while the port riser is barely w… read more
Dominick
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I have a 5.0l Mercruiser. A few minutes after starting the
I have a 5.0l Mercruiser. A few minutes after starting the engine, the water from the thermostat housing to the engine water circulating pump, and the starboard manifold becomes very hot, the water to… read more
capt ron 1959
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1984 235 HP 5.0 over heats, stbd side flows better than port,
1984 235 HP 5.0 over heats, stbd side flows better than port, risers and manifold are clear what gives?… read more
briggs archer
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Hi guys. I have a 2001 Baja 302 with 454 efis Never noticed
Hi guys. I have a 2001 Baja 302 with 454 efi's Never noticed before but both stb. exhaust risers are much hoter than port side when running. Boat has 75 hours on it and has always been fresh water flu… read more
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