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I have a merc 496. Riding yesterday check engine light and
i have a merc 496. Riding yesterday check engine light and beeping started. Could not go any faster than idle speed. The one side of exhaust pipe start smoking and getting very hot. the engine temp re… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
WHA IS THE COST FOR ANSWERS FROM THE MECHANIC. WHAT IS THE
ENGINE IS A 2003 MERCRUISER 496 MAG. IT HAS THE CLOSED COOLING SYSTEM. AT THE FRONT OF THE ENGINE THERE IS WHAT I WOULD CALL THE RADIATOR. IT IS A ROUND CYLINDRICAL PART AND IT HAS WHAT APPEARS TO BE A LONG THROUGH BOLT GOING THROUGH IT AND ON ONE END, THE RIGHT END AS YOU ARE LOOKING TOWARDS IT, IT IS LEAKING WATER. THE BOLT ON THIS END APPEARS TO BE TACK WELDED. I DO NOT WANT TO TIGHTEN THIS BOLT WITH THE TACK WELD.. DO I? I WAS THINKING OF TAKING IT COMPLETLY OFF, PLACING SOME SILICONE ON THE TREADS AND THEN TIGHTENING IT BACK UP..NOT SURE WHAT TO DO TO STOP THIS DRIPPING LEAK.… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
The two beep alarm just started on my 496 mercruiser engine.
The two beep alarm just started on my 496 mercruiser engine. All fluids are good, and motors sound good. … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
I have a 2008 270 cr with a 496 mag, I am getting a warning
Hi I have a 2008 270 cr with a 496 mag JA: Sometimes things that you think will be really complicated end up being easy to fix. The Marine Mechanic I'm going to connect you with knows all the tricks a… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
After a oil change the engines top out at 2500 rpm under
After a oil change the engines top out at 2500 rpm under load. In neutral they easily go up to 4000 They engines have been checked On computer & are fine. Have been told a low oil sensor could cause p… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
My 2007 270 SLX smart craft gauges stopped working.
My 2007 270 SLX smart craft gauges stopped working. Speedometer is stuck at 13 mph as at all other gauges. I've shut the power off and gauges won't shut off. I also have a blank digital screen. Is the… read more
Charles
Charles
Certified Mercury Tech
5,461 satisfied customers
I have a Searay 270 slx smart craft 496 mercruiser with a
I have a Searay 270 slx smart craft 496 mercruiser with a dts system. It's always frustrating when leaving or approaching a narrow slip to figure out what direction the rudder is pointing. I have trie… read more
Charles
Charles
Certified Mercury Tech
5,461 satisfied customers
2005 Searay SunSport with twin 350 Mag MPI and Smartcraft.
2005 Searay SunSport with twin 350 Mag MPI and Smartcraft. just changed one manifold and riser which required unmounting of starboard smartcraft module. Now have boat running, and smartcraft systems a… read more
Joe
Joe
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
1,392 satisfied customers
I have a SeaRay Sundancer 290 with twin Mercruiser Sterndrives.
I have a SeaRay Sundancer 290 with twin Mercruiser Sterndrives. Under the dash there are two one-inch circular alarms which are Mercruiser engine alarms as indicated on a tag attached to the alarm wir… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
I have an Mercruiser 350 MAG that is going into guardian mode
I have an Mercruiser 350 MAG that is going into guardian mode after running at cruising speed ( 20 MPH, 3800 RPM) for 15-20 minutes. after I slow it clears but will come back every time i get even clo… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
Hi. Ive got a 2003 5.0 lt mpi mercruiser serial no ..... om
Hi. Ive got a 2003 5.0 lt mpi mercruiser serial no ..... om 619422. My fuel shutoff valve doesnt work electrically so i use it manually. Will this problem cause my alarm to sound 2 beeps every minute?… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
I have a 2006 Searay 290 SLX with twin 350s. After about 10
I have a 2006 Searay 290 SLX with twin 350's. After about 10 minutes of operation, a warning beep goes off and the indicator screen says "limited engine power". Noticed today the PSI guage read 10 on … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
18,955 satisfied customers
Im trying to find the serial number for the engine to our
I'm trying to find the serial number for the engine to our boat. It has a Mercruiser 496 MAG inboard motor for our 2001 Mariah 302 Shabah mid cablin. On the top of the engine is a "sticker" that says … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,406 satisfied customers
Mercury say: "For maximum corrosion protection, we recommend
Mercury say: "For maximum corrosion protection, we recommend that the engine be flushed with freshwater after each saltwater use." but they do not provide any in-water kits for a boat on a mooring. I … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,406 satisfied customers
I am on a 2006 harbor master, with twin mercruisers. We shut
I am on a 2006 harbor master, with twin mercruiser's. We shut down, swam and now port engine will not restart, the smartcraft told us that we had an alarm of "estop asserted" How do we restart? We rea… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,406 satisfied customers
I have a mercruiser bravo II 496 mag gas engine in my parasail
I have a mercruiser bravo II 496 mag gas engine in my parasail boat. I would like to replace it with a diesel engine. What would be the easiest swap.… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have twin 496 Mercruisers when i shut the key off for one
I have twin 496 Mercruisers when i shut the key off for one engine it will continue running until I shut the other key off at that time both engines cut off. Any suggestions??… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,406 satisfied customers
I have a 2006 Mercruiser 496 Mag. Saturday I started the boat
I have a 2006 Mercruiser 496 Mag. Saturday I started the boat to move it next door idled out and back into the next slip and shut down the engine. A few minutes later, when I attempted to start the bo… read more
Jeremy R.
Jeremy R.
5,362 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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