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I have early (95) mercruiser 502 mpi engine, it will run for
I have early (95) mercruiser 502 mpi engine, it will run for half the day then quit like it is our of fuel. I added electric low presser fuel pump still does the same thing. I pulled fuel hose between… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
I have 2001 mercruiser 7.4 mpi that overheats at high rpm.
I have 2001 mercruiser 7.4 mpi that overheats at high rpm. Anything below 3000 rpms is running about 170 degrees. with the seawater input taken off the thermostat housing and a hose put in the housing… read more
Jason
Jason
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Vocational, Technical or Trade School
22,043 satisfied customers
I have a 1999 mercruiser 350 mag mpi on a Tige ski boat that,
I have a 1999 mercruiser 350 mag mpi on a Tige ski boat that, under load, will not go past 3500 rpm. In neutral it will go up to 5500. An on the water mechanic checked the plugs, timing, prop, but sti… read more
Jason
Jason
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Hi, I am in australia, I have bought a 28ft Bertram 1987, the
Hi, I am in australia, I have bought a 28ft Bertram 1987, the current engines are GM 305 260hp carbie inboard shaft drives with counter rotation. The engines are unservicable, Compression loss, Starte… read more
Jason
Jason
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Vocational, Technical or Trade School
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I need to replace the impellar on my seawater system for my
I need to replace the impellar on my seawater system for my 5.0 Ltr mercury Is there any diagrams showing how? How do you take off serpentine belt?… read more
Noel Schembri
Noel Schembri
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Diploma
2,634 satisfied customers
Hi there I have a 5,0 Mercruiser MPI with a alpha one drive
Hi there I have a 5,0 Mercruiser MPI with a alpha one drive with seawaterpump in it. I would like to modify the seawater system and install an engine mounted drivebelt driven seawaterpump. Can I use t… read more
Jason
Jason
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How can I purge the fuel system/tank so that I can remove any
How can I purge the fuel system/tank so that I can remove any remaining water? Can I re-use a fuel filter that may have had water in it, if it is emptied and dried? I have a 2000 mercruiser 350 MAG MP… read more
orcamarine
orcamarine
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Vocational, Technical or Trade Scho
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My 2002 MerCruiser 350 Mag MPI inboard engine in my 2002 SeaRay
My 2002 MerCruiser 350 Mag MPI inboard engine in my 2002 SeaRay Sundancer boat, was making loud noises and I noticed the pulley from the seawater pump was sticking out further than the others, so I lo… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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I have a mercruiser 8.1 with closed cooling. I just started
I have a mercruiser 8.1 with closed cooling. I just started it today. Engine starts, water flows out of exhaust, and before engine comes to temperature (by the gauge), a system alarm goes off saying t… read more
Jason
Jason
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Vocational, Technical or Trade School
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mercruiser 3.0 took out of storage for winter engin was completly
mercruiser 3.0 took out of storage for winter engin was completly drained of water, changed fuel filter, put muffs on it, got side tracked started engin ran for about 2 min.then started to squeal, rea… read more
Jason
Jason
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Vocational, Technical or Trade School
22,043 satisfied customers
Mercury: I have a searay 355 sundancer 2005 boat with mercruiser
I have a searay 355 sundancer 2005 boat with mercruiser 350 horizon inboard v drive freshwater Twin engines. The seawater reassure at the port side is low and the engine alarms at 2500 Revs. The impel… read more
Jason
Jason
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Vocational, Technical or Trade School
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I have a 1991 Mercruiser 350 Mag, 260hp with a Alpha One (Gen
I have a 1991 Mercruiser 350 Mag, 260hp with a Alpha One (Gen One) outdrive. The impeller was replaced in the lower leg at the end of last season, and so far has seen about 5 to 10 hours use. The engi… read more
Jason
Jason
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Vocational, Technical or Trade School
22,043 satisfied customers
I recently purchased a 2006 Four Winns with a single MerCruiser
I recently purchased a 2006 Four Winns with a single MerCruiser 350 MAG MPI. The first few times boat was running fine, but now the boat will not pass 2000 RPM and max speed of 8 mph. I have replaced … read more
James
James
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Vocational, Technical or Trade Scho
4,111 satisfied customers
We have just bought a 1999 Bayliner 2452 powered with a Mercruiser
We have just bought a 1999 Bayliner 2452 powered with a Mercruiser 350 mag mpi digital ignition (model MCM350MAGMPI). I am winterizing and I am only able to find one drainplug (blue) at the side of th… read more
Dominick
Dominick
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Vocational, Technical or Trade Scho
1,009 satisfied customers
Both engines overheating. I have a houseboat with twin 2002,
Both engines overheating. I have a houseboat with twin 2002, 4-24206LPS, Mercruiser 4.3,s with Bravo II drives. I recently recolated the boat from one lake to another and here is what happened. We loa… read more
mercmastertech
mercmastertech
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249 satisfied customers
I am trying to replace my impellar on a 350mag Mercruiser engine.
I am trying to replace my impellar on a 350mag Mercruiser engine. I haven't replaced it since I bought the boat in 2005. My question is, do I need to replace it and where is it? Is it behind the recir… read more
mercmastertech
mercmastertech
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249 satisfied customers
I recently had my Volvo Penta lower unit rebuilt because the
I recently had my Volvo Penta lower unit rebuilt because the pinion nut on the vertical shaft came loose. After putting the boat back on the water we noticed that the engine would overheat to about 22… read more
mercmastertech
mercmastertech
Service Manager, Master technician
Technical School
249 satisfied customers
I want to flush the saltwater out of my 350 mag mpi engines.
I want to flush the saltwater out of my 350 mag mpi engines. They are V-drives with seawater cooling. I am about to install closed cooling but want to flush them first. There is a quick connect hose m… read more
Joe
Joe
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
1,396 satisfied customers
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