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I HAVE A MERCRUISER 350 MAG THE ENGINE TEMPERTURE GOES FROM
I HAVE A MERCRUISER 350 MAG THE ENGINE TEMPERTURE GOES FROM 100 TO 250 IN 15 MIN THEN ALARM GOES OFF . I KEPT BOAT IN A FLUSING MODE FOR 20 MIN WITH WATER RUNNING AND ALARM DID NOT GO OFF … read more
Jason
Jason
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I have just brought fletcher with a 3.0 mercruser inboard
hi i have just brought fletcher with a 3.0 mercruser inboard with an alpha one sterndrive looks like new and i believe its four years old. the guy put it on the hose and it pumped water fine. i have t… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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I have a 06 mercruiser/alpha with a closed cooled system went
I have a 06 mercruiser/alpha with a closed cooled system went to run it after 2 weeks and it overheated no water to the heat exchanger the pump on the sterndrive is working the impeller on the engine … read more
James
James
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Vocational, Technical or Trade Scho
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I have a mercruiser alpha one gen 1. Is overheating and Im
I have a mercruiser alpha one gen 1. Is overheating and I'm planning to change the impeller and ordered the kit . But I'm also leaking gear oil from the propeller. By changing the gaskets on the impel… read more
Tan
Tan
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11,399 satisfied customers
i have a mercruiser 350 mag mpi. i revved the engine loading
i have a mercruiser 350 mag mpi. i revved the engine loading on to trailer out of water. next day i put it in, now the engine is running hot. seemes no water is being picked up.. i checked under the b… read more
James
James
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Vocational, Technical or Trade Scho
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I have a 1984 Starcraft I/O with GM 181 cid motor. It was
I have a 1984 Starcraft I/O with GM 181 cid motor. It was overheating and I figured out that it was the impellar. Where can I get information on how to replace the impeller and servicing the the outdr… read more
James
James
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Vocational, Technical or Trade Scho
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I have a 2005 bayliner 265 and it overheats after running at
I have a 2005 bayliner 265 and it overheats after running at 15 knots for around 20 minutes. The dealer said this is a common problem and will require an $1800 fix. I put a new motor in the boat 2 yea… read more
Whitecap36
Whitecap36
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Vocational, Technical or Trade Scho
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I have and alpha 1 Mercruiser. I see crank raw water pumps
I have and alpha 1 Mercruiser. I see crank raw water pumps for boats. Is there one of these pump kits made for the Alpha so I dont have to get into the outdrive to fix an impeller? I would like to cha… read more
Tan
Tan
MerCruiser Certified Technician
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I have a 1998 Merc Cruiser 5.7L 250hp alpha gen.2 drive. Engine
I have a 1998 Merc Cruiser 5.7L 250hp alpha gen.2 drive. Engine overheats at 3800rpm. Temperture drops to 160 at 3200rpm. I have changed themostat and impeller and still have overheating problem thank… read more
Whitecap36
Whitecap36
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Vocational, Technical or Trade Scho
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Replacing 5 L Mercruiser engine for second time after overheating
Replacing 5 L Mercruiser engine for second time after overheating caused heads to crack. Thermostat and impeller were less than 4 years old. Noticed oscillating temp after both were replaced again, be… read more
Jeremy R.
Jeremy R.
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Chevrolet 350 Cu inch marie engine inboard / outboard - overheat
Chevrolet 350 Cu inch marie engine inboard / outboard - overheat horn comes on when started, goes off when underway, temp gauge does not go too high. where are intakes to check cleanliness? how to che… read more
Tan
Tan
MerCruiser Certified Technician
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I have a 1999 Sea Ray 310 Sundancer with V Drive Mercruiser
I have a 1999 Sea Ray 310 Sundancer with V Drive Mercruiser 300HP model MIE 350 Mag MPI BWI. Yesterday I was going down the river and my engine alarm went off and I noticed my port side engine was ove… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
Hi,i have a 5.7 mercruiser and alpha one stern drive,i installed
Hi,i have a 5.7 mercruiser and alpha one stern drive,i installed a closed cooling system.But the engine starts overheating after a while when i speed up.If i install a raw water pump insted of using t… read more
K. Kergan
K. Kergan
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Vocational, Technical or Trade Scho
1,031 satisfied customers
1986 Mercruiser 140 HP in line 4. Engine #A586058 Model#2140W Overheating
1986 Mercruiser 140 HP in line 4. Engine #A586058 Model#2140W Overheating? Have replaced thermostat and still overheats. Have run without thermostat and still overheats. My thinking is either the wate… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,399 satisfied customers
Hi ..I have 2003 mercruiser with a alpha 1 lower unit and i
Hi ..I have 2003 mercruiser with a alpha 1 lower unit and i am changing the water pump . the pump kit has all the same impeller and gaskets but there are two orange o-rings i don't rember taking off t… read more
Whitecap36
Whitecap36
Service Manager/Technician
Vocational, Technical or Trade Scho
1,556 satisfied customers
I have a 1998 Sea Pro with a Chevy 350 inboard/outboard with
I have a 1998 Sea Pro with a Chevy 350 inboard/outboard with alpha drive. The engine temp is good at idle, but runs hot when under load, like trying to get on plane. When you slow back down, the temp … read more
Rick Gay
Rick Gay
High School or GED
106 satisfied customers
My 1986 Mercruiser 5.7LXV8 is overheating. Fluid levels are
My 1986 Mercruiser 5.7LXV8 is overheating. Fluid levels are full. I don't know if this engine is air or water cooled. Could something be blocking the cooling system?… read more
mercmastertech
mercmastertech
Service Manager, Master technician
Technical School
249 satisfied customers
I need guidance on replacing the water pump impeller on a 1998
I need guidance on replacing the water pump impeller on a 1998 Mercruiser Alpha One Gen II. Background: I have a 1998 Sea Ray 185 with a Mercruiser 4.3 with Alpha One Gen II drive. Two years ago the l… read more
Michael
Michael
master marine technician/charter captain
Vocational, Technical or Trade Scho
256 satisfied customers
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