View Full Version : General Q & A
- Looking for advise with wideband installed
- Air fuel ratio sensor kit
- 02 496 ho leak in closed water sysytem?
- 502 sucks water through air intake vents
- Skills to perform an engine Scan?
- Anyone Repair/Rebuild Risers?
- HP 500 hours
- reverse rotation 454 distributor issues
- I need a Holley carb expert
- 847722a2 or 8414338a5 engine harness
- 502 MPi - Still popping thru the intake. Need some ideas for troubleshooting.
- Mercruiser Fault Codes
- Bravo 1 won’t go into reverse
- Where is the best place to read about MEFIBURN?
- Shift Question
- HT 502 marine application?
- Bilge blower not working
- Mercruiser loosing power to the ignition switche
- Has anyone tried these ?
- Port side exhaust water flow less than starboard side
- Blown 509 rootz efi issues
- Boring 454 Mag
- 8-71 Clearance
- Compare these heads please
- Engine pop, 502 MPi, electrical?
- 2000 Baja fuel question
- How many GPM is a Gen 7 sea pump?
- 502 MPI, lost some water pressure and tempuratue drop.
- Cam reversion
- Beta site view?
- OBD Diagnostics Scanner Pro Issue
- 1997 454 "mag" question
- Carb Jetting advice please
- Twin 454 question
- Has anyone pro-charged a 350 Mag MPI?
- CT boat ramps
- Exhaust woes....
- verado ecu flash details / dyno
- Why do people like zero effort controls? What is the point?
- Spring locators suppose to hold still or spin?
- Need new motor for my Scarab, please help me do it right!
- daytona ignition with alpha 1
- Tr transom exhaust
- Tr transom exhaust
- How to tune Idle Modded 502 MPI w/MEFI-3 Mefiburn VIDEO inside
- Trim limit adjustment
- Gaffrig headers?
- Bravo XR Shifting
- Gen 5 & 6 Thermostatically Controlled Engine Block Adapter
- fountain lightning trim issues
- big bllock water pump plate
- ijector source
- High Idle - Regardless of Carb Adjustment
- Vibration at Idle (Twins) On for 3 off for 3 seconds
- Need to rebuild two Merc 525’s.
- 1985 scarab 1 holding water and gas
- Trim pump problem doesnt go up or down but trailer works
- Keith Eickert mechanical fuel pump issues
- Tuning Values, need opinion
- aftermarket boost clamps
- 1998 502 mpi
- 1988 formula 242 ss
- 8.2 mag ho Stalling when hot
- Do these pistons look right?
- Sea water pressure fault
- Elevation ranges without adjusting Holly Carbs.
- Fuel line to big
- donzi 38 zx cabin water leak
- How restrictive is stock 502MPI Exhaust?
- Dr8ve shaft nut torque
- MSD 6M-3L Marine Ignition Control Box
- 500efi thermostat housing
- Oil & PS coolers
- Engine swap from Chevy 350 to Ford 351.
- Convert a 502 Inboard motor to use with a Sterndrive
- Mercury engine Identification
- 6.2L IAC Issues
- Spark Plug Preference
- Options for V Belt pulleys
- Break in procedure for Bravo 1 drive
- New 12v Horn Won't Sound
- Runs Hot In Quiet Mode
- 496 exhaust on a GEN V 454Mag?
- Thermostat manifold
- Another dyno session, 454 w bm 420 megablower
- 500 EFI running rough
- spastic tachometer....
- more 496 MAG HO issues
- Mercll trans adapters ( manual )
- 496 cooling and water pressure
- Winterizing Oil Change Question
- Bravo 1 with 1.25 shaft part number
- Scan tool
- HELP, Engine/transom wellcraft 233
- New & Need help.
- what drives can interchange with a bravo one transom
- Ilmor m-10
- 502 MPI Fuel Pump Problems
- New Member & New to Me Boat
- 454 mag mpi running rich!!!
- DCB F32 700SCi Water Pressure Issue
- Bravo-1 lube in water intake again.
- FiTech injection
- 525efi - fuel/water separator
- Cigarette 38 topgun weight
- Fuel pickup
- Bravo One vs. Bravo One Diesel
- Gill exhaust hp
- New chrome power steering pump . anyone ever use one?
- Oil Pressure - 525EFI
- Closed cooling for 1100 hp
- Fuel tanks plumbing
- Black Thunder hatch HELP!
- 2003 496 mag ho serial number OM383059 fuel pump
- Mercury Racing Blue
- 85 formula 242 with twin 5.7.
- Supercharged 565 detune for pump fuel question
- 2003 496 HO Mag update
- Merctrans II MCM-E stuck in forward gear
- Hi Flow Tstat
- Hatch actuator accelerator relay
- Water Pressure Differential?
- Bravo 3 old vs new
- help with spark plug selection
- Hello, I new and have a carburetor question.
- Gaffrig gauges are sticking
- Fuel line removal tool?
- Merctrans seal kit
- 525 coolant cap leak
- Best fuel Sending unit
- Solid alarm on my 496 mags
- top off drive reevoir / left cap off am i in trouble
- Lifting points?
- Water dumps
- ISO Mercury Racing 377 Scorpion Piston.
- HELP! 2003 Eliminator Eagle w/496
- Bravo Coupler
- 454 mag Silent choice doesn't work!!!
- Gen V crossover conversion belts?
- Like to see a dyno sheet for a whipple 3.3 bsfcs for comparison.
- gimble bearing popped out!
- Best aftermarket exhaust for sbc stroker?
- Strainers not filling all the way
- Dui igntion module 7 pin gm
- a ? about 2003 JC Tritoon Performance (pic included)
- Trim issue
- Trying to find replacement water hose
- 2003 496 HO how many fuel filters are there? Where?
- 1.6 rocker ratio SBC gains
- 26 ft Sonic Prowler
- 555 bbc wondering on upgrades intake, carb, headers
- 502 MPI Problem
- 2003 496 HO Checking fuel pressure
- Oil coming out of dipstick tube
- Sealing exhaust vent ports in Bravo drives
- Why not use newer version (clearance on one side) gimbal bearing in older drive?
- 540 crate anyone hear of these guys.
- Huber Transmissions
- Trim Hydraulic problem
- dual power steering pumps . hydrolic steering
- Hardin marine manifolds and risers?
- Do Turndowns on STAGGERED engines FIT? Fountain 42
- MEFI 1 basic and total timing?
- Help me pick a carb for my 20
- Beat Thread Sealant
- Mercruiser Oil Filter trouble
- Three simple questions on a 496ho/Bravo One X
- 496 HO Falling flat around 4000 RPM
- Sticky power steering
- Reprogramming the MEFI 1 ??
- Msd distributes bushings?
- 088 gen 4 heads on a 540?
- 525sc roller lifters
- Wide water temperature swings at idle?
- To many hours??
- HP 500 water pump #
- 525 EFI with no spark
- 454 Mag Valve guide confusion with machinist
- Mercruiser serial number
- Blower on the gen V 330 454?
- HP 500 Carb motor
- Comp Cams 850 lifter
- 454 build and dyno test
- 575 sci Bravo questions!
- HP500 backflush
- Gimbal kit, what to get? blocking off thru drive exhaust etc
- Fuel injector cleaning
- My Cams Not Ground the Same as Each Other
- Help 454 mag head gaskets
- Batt Voltage 1 Volt Lower at Dash Normal??
- 500EFI alarm
- Sick 454 Mag need some advice
- 38 Excalibur motor setup
- 12 volt wire source
- 270 sundancer prop choices
- power steering
- Mechanical Indicator Pins - Little white pieces
- milkshake or condensation
- 502EFI fuel pressure
- Zz502
- Best inline billet fuel filters
- 496 HO Hard to Start after sitting
- Carb to EFI swap on 525sc??
- revolution marine
- Mercruiser ing y back firing
- Spark Plug Gap
- Thermostat Yes or No
- 500 EFI Temp Gauge Pegged on 280*?
- Charging AGM Gel Batteries
- Mercury Premium trim tab cables
- Cam chain clearance to block
- Coating On Transom?
- How to: 500 efi timing
- Twin 502 Mercruisers want ot be at different angles for alignement...>?
- Which Gen 5 double roller timing set?
- 2 Piece valve covers
- 500 EFI PS pump bracket
- Fuel System Issues
- Looking for a new Depth gauge w/ water temp...
- Where to install and discharge water psi dumps
- Typical MAP and Ign Advance values at idle for 496 MAG HO?
- Spark Plug Wires - MSD, Taylor, Multi Fire... which ones are best?
- K plane seal or rebuild kit?
- How to ID a 502 from a 454
- Going in Guardian mode
- 500 EFI breather tubes
- Hard to start 502 mpi
- 525 efi issue
- merc gen 2 remote
- 502 MAG EFI build reccomendations
- please help with a 525 EFI problem
- H or P main & rod bearings
- 8.1 Volvo Penta serpentine belt
- 500 EFI placard
- HP transom assbly torque
- West Coast Offshore Engines
- replacement block for 525SC
- time to step up to the plate
- How To Eliminate Corsa Quick & Quiet Exhaust?
- anti siphon valves
- Timing set for GenVI. Any favorites?
- help with a 1978 28ss cig twin 350 /trs
- New starter not working
- Insta trim 200 gauge
- 496 offshore mounts
- Old school BBC not starting
- Help picking 525SC rebuild cam
- Electric fuel pump kit Mercruiser ?
- 496ho troubleshooting start but engine sounds like its forcing 😢😢😢
- Easy 100HP Gain on 6.2 MPI...