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I have a Perkins Prima M60 marine engine with H2o in the oil.
I have a Perkins Prima M60 marine engine with H2o in the oil. I assume its the head gasket (havn't done a comp. check yet) . What else could it be? Don… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,399 satisfied customers
Hello I have a 72c, Velvet Drive Vdrive (2.49:1) and the transmission
Hello I have a 72c, Velvet Drive Vdrive (2.49:1) and the transmission part is rebuilt recently and after the rebuilt its overheating after about 15 mins of runing with 3000 RPM, pulled it out 3 times … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,399 satisfied customers
I have a 1989 bayliner 2455 ciera sunbridge with the 5.8 motor,
I have a 1989 bayliner 2455 ciera sunbridge with the 5.8 motor, just put new exhaust manifolds on and first time out motor got hot about 220 deg motor then had a slight knock ,oil pressure dropped. sh… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,730 satisfied customers
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
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,399 satisfied customers
I have twin Volvo Penta 8.1 Gil-F engines in a V-drive configuration.
I have twin Volvo Penta 8.1 Gil-F engines in a V-drive configuration. My port engine runs hot when in idle. If I am running at speed or if I have at least 1500 RPM it cools fine. I have changed the im… read more
Jason
Jason
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Vocational, Technical or Trade School
19,300 satisfied customers
I have a engine overheating problem.Mercruiser 2000 model 5.7
I have a engine overheating problem.Mercruiser 2000 model 5.7 inboard. the heat exchanger is a seakemp model 78094.I did notice when i took the ends off heat exchanger and added fresh water it appeare… read more
Jeff G.
Jeff G.
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Vocational, Technical or Trade Scho
4,730 satisfied customers
My Perkins 6.354.4 with turbo is losing antifreeze about 1l
My Perkins 6.354.4 with turbo is losing antifreeze about 1l in 10 hours but worse the inside of the heat exchanger anti freeze side is black and greesey. Any suggestions as to where to look? Bob… read more
dieselhub
dieselhub
39 satisfied customers
my volvo penta 3.0l left me in the lake yesterday. the rubber
my volvo penta 3.0l left me in the lake yesterday. the rubber cap over the small outlet on the circulating pump first blew off, then I put it back on and tightened the clamp and it blew the end off. i… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
19,300 satisfied customers
Hi, i need some serious help. i have a 48ft SunSeeker with
Hi, i need some serious help. i have a 48ft SunSeeker with triple Volvo KAD44.My port and starboard engines are over heating, and they are only over heating when i run then at 2500RPM. i try cleaning … read more
Jeremy R.
Jeremy R.
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Have TAMD60C and stbd engine overheats at higher revs. Have
Have TAMD60C and stbd engine overheats at higher revs. Have replaced impeller, stripped oil cooler and aftercooler and descaled. They were well calcified and hoped my problem solved . Have now run eng… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,399 satisfied customers
Have a 5.7L I/O with raw water pick-up pump ( replaced impellar
Have a 5.7L I/O with raw water pick-up pump ( replaced impellar ), installed new 160 degree thermostat. Engines starts fine, temp goes to 180 and stays there. Can cruise for hours below approx. 2500 r… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
FAO Tan Partin Hi Tan, you where correct, tubes gone in the
FAO Tan Partin Hi Tan, you where correct, tubes gone in the Heat Exchanger but it is beyond repair. I have tried to purchase a replacement but am told it is no longer available which is a major proble… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,399 satisfied customers
I have had problems with coolant loss for some time, which
I have had problems with coolant loss for some time, which was decreased by fitting new pressure caps to both engines. NB this boat has been converted to LPG so the coolant also runs through the LPG g… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,399 satisfied customers
I have a pair of Yanmar 370 HP 6LYA STP diesel engines with
I have a pair of Yanmar 370 HP 6LYA STP diesel engines with approx 75 hours in a 1987 35' Egg Harbor. After the motors were installed the boat was laid up for approx 4 years with 20 hours on the motor… read more
Yachtwork
Yachtwork
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1,048 satisfied customers
I HAVE AN 2004 SEA RAY 290 WITH MERCRUISER BRAVO 1 ENGINES.
I HAVE AN 2004 SEA RAY 290 WITH MERCRUISER BRAVO 1 ENGINES. THE STARBOARD ENGINE IS OVERHEATING AND SHOWING VERY LOW WATER PRESSURE. THE WATER IMPELLAR HAS BEEN REPLACED AND THE THERMOSTAT HAS BEEN RE… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I need user manual and HELP identifying oil dip stick... I
I need user manual and HELP identifying oil dip stick... I need 101 assitance with Perkins M92-04 Diesel Engine.… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,399 satisfied customers
Hello again!, Tonights question is Have I damaged my newly
Hello again!, Tonight's question is "Have I damaged my newly rebuilt Mercruiser engine?" Both of my "Big block" Mercruiser engines were rebuilt last summer. During the winter I often run them while st… read more
Scott Martin
Scott Martin
Service manager
Vocational, Technical or Trade Scho
167 satisfied customers
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
capt ron 1959
Owner/Marine Mechanic
Vocational, Technical or Trade Scho
348 satisfied customers
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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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