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I have an 8.1 volvo penta. When I get above 3000rpms an
I have an 8.1 volvo penta . When I get above 3000rpms an alarm goes off and speed is reduced .Oil and temp are fine . what can cause this ? … read more
Jason
Jason
Marine Mechanic
18,634 satisfied customers
Alarm wont turn off. Engine start firs crank. Oil is good,
alarm wont turn off. Engine start firs crank. Oil is good, Coolant is good, and leg oil is up to full level. Engine is a 4.3 Mercruiser TKS. year is 2008.. When we serviced it in January we changed oi… read more
Jason
Jason
Marine Mechanic
18,634 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
18,634 satisfied customers
Boat has merc 5.0 I/0 just 3 years old. runs great, water
boat has merc 5.0 I/0 just 3 years old. runs great, water temp is 175, oil pressure 40. aftering running for awhile, we stopped the boat and immediately the alarms went off the temp guaGE SHOT UP AND … read more
Jason
Jason
Marine Mechanic
18,634 satisfied customers
Blowing 15 Amp fuse connected to purple wire from ignition
Blowing 15 Amp fuse connected to purple wire from ignition switch back to a 2006 4.3L Mercruiser I/O used in a 2006 Stingray 200 CS Boat … read more
Jason
Jason
Marine Mechanic
18,634 satisfied customers
I have a 21spx 2016 sea ray 4.3 mercruiser Last weekend my
i have a 21spx 2016 sea ray 4.3 mercruiser Last weekend my sensor went off. I checked the oil clean and full. I checked my water and it stayed at 175 and the motor didn't get hot when I touched it. Wh… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Have an alarm going off on my 5.7 mercruiser. Motor runs about
Have an alarm going off on my 5.7 mercruiser. Motor runs about 175 for the temp. Just replaced motor less then four running hours ago. New impeller and thermostat installed as I was putting back toget… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
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
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I am cert mercruiser but cust just bought volvo. start eng
I am cert mercruiser but cust just bought volvo. start eng and warning horn sounds constant. oil press temp, ect good no loss of power. press mode on tach horn stops for 10 min. She got no manual with… read more
Jason
Jason
Marine Mechanic
18,634 satisfied customers
Mercury Bravo 260 HP x2 system with Guardian protection on
Mercury Bravo 260 HP x2 system with Guardian protection on both engines. Boat is kept in dry seapen. Water pumps recently renewed. No engine start problems . Water and oil presure 175F with 40 psi oil… read more
Jason
Jason
Marine Mechanic
18,634 satisfied customers
I have twin 1986 mercruiser 350 cu in 260HP with 1100 hrs
I have twin 1986 mercruiser 350 cu in 260HP with 1100 hrs running time.In the left engine over the past 2 years have noticed more moisture in the rocker box lines that go up to the flame arrestor and … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Hi. I have a 2003 Mercruiser 4.3 MPI alpha one Gen II. I recently
Hi. I have a 2003 Mercruiser 4.3 MPI alpha one Gen II. I recently performed the following maintenence: New exhaust bellows, driveshaft bellows, shift bellows, water hose, and impeller. On the test run… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Ive got a Mercruiser 350 Mag in my 2000 Tige wake-board boat.
I've got a Mercruiser 350 Mag in my 2000 Tige wake-board boat. We had a major service in early June 2012 (fluids, plugs, impeller, etc.) It ran great on our next trip out two weeks later. Then in earl… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
i have a mercruiser 496 mpi 8.1 closed coolant sysem manifold
i have a mercruiser 496 mpi 8.1 closed coolant sysem manifold sensors throw an alarm at about 175 degrees. The engine temp with a temp gun is 165, the manifold are the same and the risers get up to 20… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 190 hp Volvo 4.3L V6 in my Glastron 185 GX. This
I have a 190 hp Volvo 4.3L V6 in my Glastron 185 GX. This weekend we took it out and the engine alarm would go off when the engine would get to about 174 F. No other gage was close to out of tolerance… read more
Jeremy R.
Jeremy R.
5,362 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
I have a 2005 Larson with twin inboard 420hp HO Mercruisers.
I have a 2005 Larson with twin inboard 420hp HO Mercruisers. While out today, the engine alarm sounded continuously after bringing revs up to 1500 rpm, no noise during initial 10 minutes below 1000rpm… read more
Yachtwork
Yachtwork
Owner Team Yachtwork
Technical or Trade School
1,048 satisfied customers
I have a mercury 140hp I/O on my searay 175,after passing thru
I have a mercury 140hp I/O on my searay 175,after passing thru a large wake today the engine started to overheat when it reached 2000rpm,as soon as i throttled back the temp. returned to normal. While… read more
shane j forrest
shane j forrest
Vocational, Technical or Trade Scho
270 satisfied customers
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