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Replaced water impeller, boat runs at max 160 degrees on ear
replaced water impeller, boat runs at max 160 degrees on ear muffs. on the lake, runs about 160 at higher rpms. at idle in gear heats up over 180. is this normal? … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,406 satisfied customers
I have a 2014 Mercruiser 5.7 fresh water cooled. It
I have a 2014 Mercruiser 5.7 fresh water cooled. It overheated yesterday. I put a gallon of coolant in tonight and ran it. It stayed at 160-170 at dock idling for 15 minutes. I took it for a ride and … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
Over heats at slow speeds and at idle, cools fine at gher
over heats at slow speeds and at idle, cools fine at higher speeds, Have new water pump , checked thermostats and are fine. The motor is a 2002 Honda 225 hp with 140 hours … read more
Charles
Charles
Certified Mercury Tech
5,461 satisfied customers
2007 mercruiser 5.0 MPI, just replaced raw water impeller,
2007 mercruiser 5.0 MPI, just replaced raw water impeller, thermostat, oil, plugs, drive lube and engine runs smooth but using an IR gun thermometer I get 90F on top of riser, 180-185 on lower sides o… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
I have a 2001 Mercruiser 5.7 litre Thunderbolt V engine. The
I have a 2001 Mercruiser 5.7 litre Thunderbolt V engine. The engine ran hot a week ago. I replaced the outdrive water pump, both risers and manifolds, the thermostat, checked all the hoses for blockag… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 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
11,406 satisfied customers
Hi I just bought a volvo penta year 2000 5.0gl pefs engine
Hi I just bought a volvo penta year 2000 5.0gl pefs engine and a sx outdrive when i put muffs on it no water comes out of the propeller ... I changed the impeller a day ago. Do I have to wait for the … read more
briggs archer
briggs archer
master marine mechanic
Associate Degree
374 satisfied customers
I have a 2000yr. chaparrel with a 5.0 mercury and a volvo penta
I have a 2000yr. chaparrel with a 5.0 mercury and a volvo penta outdrive. I changed the impeller it is in properly and my boat is still over heating, also I thought water needs to come out of the cent… read more
Noel Schembri
Noel Schembri
Marine mechanic
Diploma
1,804 satisfied customers
I have a 7.4 mercruiser fuel injected with a bravo 3 outdrive.
I have a 7.4 mercruiser fuel injected with a bravo 3 outdrive. It is raw water cooled with raw water pump below alternator. the engine would start to run hot when I went over 2500 rpm. I took thermost… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,406 satisfied customers
Ford Mustang Boss 302 was running my ford 302 inboard engine
was running my ford 302 inboard engine the other day with hose water hook up ears...and noticed it ran kind of hot ..almost tea temp water comming out...seemed to be spitting water out exhaust dischar… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
what is the normal operating temperature for exhaust manifolds
what is the normal operating temperature for exhaust manifolds for a 1995 mercruiser 5.0lx… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
2005 Volvo/Penta (Gas) 5.0GXi/5.0L (305) V8 (GM) 270 hours
2005 Volvo/Penta (Gas) 5.0GXi/5.0L (305) V8 (GM) 270 hours started over heating Replaced, risers, manifolds, thermostat housing and thermostat, impeller and housing just incase,still over heating took… read more
capt ron 1959
capt ron 1959
Owner/Marine Mechanic
Vocational, Technical or Trade Scho
348 satisfied customers
how does a mercruiser cooling system work at the bottom end
how does a mercruiser cooling system work at the bottom end of the outdrive and is there a water pump on the inside my inboard 1977 fiberform boat with a 165 hp motor?… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
when running my 120 mercruiser inboard with muffs how much
when running my 120 mercruiser inboard with muffs how much water should come out of the exhaust bellows in the rear of the boat and what temp should my motor run?… read more
Master Tech
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
1,167 satisfied customers
Recently purchased 96 Four Winns Sundowner 225 w/Volvo Penta
Recently purchased '96 Four Winns Sundowner 225 w/Volvo Penta 5.8efi and FWC and a Cobra outdrive. When I attempt to flush the outdrive most of the water sprays on the outside of the outdrive and very… read more
Master Tech
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
1,167 satisfied customers
I have a 1975 marktwain with a mercruiser 888. It was winterized
I have a 1975 marktwain with a mercruiser 888. It was winterized last year and the antifreeze was left in the block. It was stored in doors. Early in the spring the gimal bearing and shift cable was r… read more
briggs archer
briggs archer
master marine mechanic
Associate Degree
374 satisfied customers
88 Mercruiser 5.7, w Alpha 1. Gets too warm, 200 degrees indicated.
88 Mercruiser 5.7, w Alpha 1. Gets too warm, 200 degrees indicated. Found perforated outdrive to transom hose, fixed it. Still over 180 degrees. Found ruined impeller and melted water tube, rebuilt st… read more
briggs archer
briggs archer
master marine mechanic
Associate Degree
374 satisfied customers
I have a 2001 4.3L V6 Mercruiser with an Alpha outdrive. The
I have a 2001 4.3L V6 Mercruiser with an Alpha outdrive. The stock one piece exhaust elbows rusted out and water got into the engine so I pulled the motor out and rebuilt it. The heads were taken in a… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
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