Which is the best forum for Mercury outboard problems?
This is the best Mercury Outboard Forum on the internet, it’s yours! If you own a Mercury Outboard. Are you looking for good advice about your Mercury outboard engine problems and issues.
Why is my Mercury outboard engine not starting?
Air vent in fuel cap not open. Faulty emergency kill switch. Some engines — not the pull-start kind — have a battery that starts it. If your engine has a battery, make sure it is charged up before use; verify the battery connections are clean — as corroded connections can keep a Mercury outboard from starting.
What should I do before starting my Mercury outboard?
If your engine has a battery, make sure it is charged up before use; verify the battery connections are clean — as corroded connections can keep a Mercury outboard from starting. Outboard motors require that you start them up and hold the gas until they can idle on their own.
Are there any problems with the Mercury 350 sci?
It’s just the mechanical aspect of that block that restricts it from producing any more ponies (we’ll talk a little later about the 350 SCI that came out with this design) One of the main problems of that block was, over time, the engine would jump timing.
This is the best Mercury Outboard Forum on the internet, it’s yours! If you own a Mercury Outboard. Are you looking for good advice about your Mercury outboard engine problems and issues.
How to troubleshoot a Mercury outboard ignition switch?
Disconnect the Mercury Outboard switch and reset, if the engine fires, replace the Mercury Outboard switch. Check the voltage on the red and white Ignition wires at the CD Unit. If the voltage is less than 9 1/2 volts during cranking there is a problem in the battery s or the Ignition switch Box.
Why does my Mercury outboard overheat at 3000 rpm?
Replaced water pump impeller, t’stats, poppet valve and still get overheat alarm after running a while at 3000 RPM. Have water pressure and motor pees a steady stream. I understand the motor has a filter screen somewhere in the water system but the powerhead has to be removed to get at it.
Where did my Mercury outboard motor come from?
I bought this motor as a clearance in 2009 in Delaware USA ( new in crate) I then moved to Australia, and the motor stayed in the crate until 2 days ago…. … When I turn the key I get the beep, but there is a 2-3 hesitation before the motor starts to turn over. After a couple tries, the motor starts and runs …
Is it OK to use new mercury oil on outboard?
Is it ok, he wonders, to fill the crankcase with the new Mercury 25W-40 Synthetic Blend oil, assuming that the motor had been shipped from the factory with “break in” oil? The short answer is yes—go ahead and use the new Mercury oil. For the longer answer, read on.
What to do if Mercury bogs down when accelerating?
Four carb kits, an ultra-sonic cleaner, a gallon of simple green “purple”, some fine brass wire, a compressor to blow out all the small path ways, and the better part of day or two to do the work. You have spent the better part of $300 plus before you count your time. Make an appointment and take it in….
I bought this motor as a clearance in 2009 in Delaware USA ( new in crate) I then moved to Australia, and the motor stayed in the crate until 2 days ago…. … When I turn the key I get the beep, but there is a 2-3 hesitation before the motor starts to turn over. After a couple tries, the motor starts and runs …
Four carb kits, an ultra-sonic cleaner, a gallon of simple green “purple”, some fine brass wire, a compressor to blow out all the small path ways, and the better part of day or two to do the work. You have spent the better part of $300 plus before you count your time. Make an appointment and take it in….
Why is there no Pee hole on a Mercury outboard?
Re: Mercury Outboard no pee hole discharge Not sure, but I believe the “pee” hole discharge system, was partially meant to allow the water to fill an area which the impeller system wasn’t reaching, or water to be routed to an area where there could be a natural “airlock”.
What’s the RPM on a Mercury 115 EFI?
My mercury 115 EFI four stroke develops an engine miss at around 5000 rpm. The rpm drops approx 200 to 400 rpm. This miss comes and goes.
Why does my car idle at a higher RPM than normal?
Updated January 19, 2019. If your car seems to be revved up to a higher-than-normal RPM while idling, it’s not necessarily a problem. If this problem happens while the engine is cold, it may be part of the engine’s design.
What causes an engine surge when the ECU is off?
If closed TPS voltage changes, the ECU may assume that your foot is on the throttle, causing a richer fuel mixture to be delivered. This can also be caused by a faulty TPS, or even a poor ground. With the engine off, check TPS voltage with the accelerator pedal relaxed. Then work the pedal a few times and see if the voltage changes.
Why does my Mercury Mountaineer stall at 70 mph?
Hi all…Frustrated Mountaineer owner here–My 2002 Mountaineer has been stalling at 70 MPH on the freeway. It staills at slow speeds, at stop signs etc. Dealer CANNOT get it to fail of course. It appears to be fuel related. I have seen “Fuel error” message on the display.
What kind of problem does Mercury Mountaineer have?
Mercury Mountaineer 2004, AWD, V8. Bought this used with 40k miles on it. The engine dies (dead) when using the cruise control. control, several minutes pass by and suddenly the engine is dead. Most of the warning lights in the instrument cluster come on.
How often does the engine idle during a drive?
• The learned idling air flow volume remains at the maximum or minimum volume five times or more during a drive cycle. • After driving at 6.25 mph or more, the actual engine idling speed varies from the target idling speed by between 100 and 200 rpm, five times or more during a drive cycle.
If closed TPS voltage changes, the ECU may assume that your foot is on the throttle, causing a richer fuel mixture to be delivered. This can also be caused by a faulty TPS, or even a poor ground. With the engine off, check TPS voltage with the accelerator pedal relaxed. Then work the pedal a few times and see if the voltage changes.
What’s the root cause of mercury 2-strokes’rough idle?
I’ve been told rough idle is the nature of the beast and is common for all Mercury 2-strokes as they are optimized for riding. Fair enough but what’s the root cause of rough idle? (assuming all components work as designed)
Can a mercury motor have a smooth idle?
You were told right,these motors do not have a smooth idle.There’s even a warning in the mercury service manuel which states (DO NOT ADJUST CARBORATORS TO ACHIVE A SMOOTH IDLE)This is because the engine will be running to lean at this point.
I’ve been told rough idle is the nature of the beast and is common for all Mercury 2-strokes as they are optimized for riding. Fair enough but what’s the root cause of rough idle? (assuming all components work as designed)
You were told right,these motors do not have a smooth idle.There’s even a warning in the mercury service manuel which states (DO NOT ADJUST CARBORATORS TO ACHIVE A SMOOTH IDLE)This is because the engine will be running to lean at this point.
What causes idle surges on a car ECM?
Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges.
What was the lowest compression reading on my engine?
The compression readings aren’t perfect: the lowest reading was 103psi in one of the cylinders when measured about 2 years ago (the engine hasn’t done more than 25 hours since then) but I don’t longer have the readings in the other 2, I think they were around 110psi, so will have to re-measure them all now.
How old is my 1997 Mercury Grand Marquis?
Bought my 97 Grand Marquis LS two years ago as a first car for college at about 118,000 miles for 2000. This car is a dream. It is spacious and roomy, and can carry 5-6 people comfortably. At 21 years old, most people are shocked this car is still on the road, but Ive experienced minimal problems.
Why does my mercury 115 EFI not start?
My mercury 115 EFI four stroke develops an engine miss at around 5000 rpm. The rpm drops approx 200 to 400 rpm. This miss comes and goes. It appears … cold Engine cranks quickly but does not start. will start if using starting fluid. carbs rebuilt. new fuel,new squeeze ball, electric choke. new plugs …
What did Alan Jackson sing about a Mercury?
She heard he had a Mercury. Lord she’s crazy bout a Mercury. I’m gonna buy me a Mercury & cruise it up & down the road. Loading…
My mercury 115 EFI four stroke develops an engine miss at around 5000 rpm. The rpm drops approx 200 to 400 rpm. This miss comes and goes. It appears … cold Engine cranks quickly but does not start. will start if using starting fluid. carbs rebuilt. new fuel,new squeeze ball, electric choke. new plugs …
Can a Mercury Grand Marquis engine shut off while driving?
Apparently, the computer (pcm) that controls the engine can shut the engine down while the vehicle is driving when certain sensors fail (at least 2 known sensors per my research). I found this out at 65 mph, 2 hours from home.