View Full Version : General Q & A
- WTH is going on with my oil temp
- What is fuel pressure spec on 2001 7.4 454 mpi Mag?
- 540 NA MEFI 3 Intake Vacuum Question
- Help with prop
- Opinions on 1989 575hp bulldog 540ci and ssm 3 drives?
- 2003 496 HO dreaded two beep alarm
- 502 MPI Low Fuel Pressure
- 300xs ECU
- Strange noise... please help!
- How can I tell if my motor is inter or ext balanced
- Need a trim actuator clap
- 1987 454 merc main harness
- Newb, sure its not the first time.
- what transom work is needed to convert TRS to SSMIII drives?
- 600 sci
- lunati cam 20010666
- lunati cam 20010666
- Flush OMC 460 King Cobra - raw water pump in lower unit.
- draining the block - easier way? 1/4" valves?
- Water Restrictors
- need help replacing a harmonic balancer
- gen VI 525SC pistons
- Identifying 502's
- Suction hose
- speed gain
- Bell housing mounted starter
- Russell Check Valve VS. Anti-Siphon Valve
- 500efi with blower shop 250s
- Dyno sheet
- Anybody use Anthony's Marine Engines in St Pete?
- 500efi installing blowers
- Sonic with a 496 engine noise
- Help! 502 efi keeps stalling
- 502 efi temperature sending unit?
- Please, need help w/ mefi1 502 mpi code 21 and 42
- Rebuilding 502's
- 540ci 700hp build recipe
- 496 Ho question - fuel leak?
- 8.2 EFI fuel pump question
- Distributor info
- 496 Mag HO - slight miss, poor mileage, loss in rpm
- Quadrajet flame arrestor
- bomar hatch latched pulled off glass
- Which is easier?
- Plumbing water hull pickup or drive pickup?
- Replacing exhaust tips
- Main Bearings ?? Mercury Racing
- B&M 250/420 Idler Question
- Target Air Fuel ration N/A engines.?
- 871 Blower experts CHECK IN
- Mercury 500 Sea water pump
- Water pump direction 500HP vs 502 MPI
- 600SCI engine water Flow Issue
- So many threads on milky oil, but heres a bit of a spin
- Replacement MEFI 1 -- Any one know what my options are?
- Thunder powerboats
- HP500 Ignition Issues with Marine MSD Setup
- Cant trim under power??
- flywheel material and type
- Wiring the drive trim switch on the gaffrig throttle...is a fuse needed?
- 502 MPI build help
- Water Jacketed vs Water Injected
- Rinda Scanner Adapter Won't Fit 525 Diagnostic Conn.
- Dyno tuning technic
- Small block ignition
- 575 sci piston
- Smartcraft gauge options
- repairing acrylic wind screen?
- 28 Nordic, 29 Warlock, 288 Sunsation
- Low budget 7.4 rebuild
- Oil pressure...
- Air into engine is 130-150 deg
- Afr
- Engine Starving for air?
- Looking for help with one of my motors
- Bravo 1 upper gear set clutch timing question??
- oil temp pick up location
- Need your help! Engine bogging while accelerating
- What height should K planes be above the running surface. Pro and con for dif heights
- Offshore Mounts
- 07 496ho swap. Tach does not work. Need HELP!!
- Ball park how much does a pair of 350 hour Mercruiser 575 SCi go for?
- 1993 454 Magnum - Proper Engine Temp?
- Oil psi sender Question
- Exhaust Tips
- 1992 Fountain 32 Fever
- Identify these sea strainers
- pressure treated wood
- 1998 baja 272 502mpi top rpms
- Value of 525 log block
- How to cannect throttle shift cables To zero effort morse controls
- Hardin Marine exhaust
- Trouble Starting
- What do these tail pipes belong to?
- Gauge pointer oops!
- 2003 496 HO Fuel Pressure Issue
- Sea Strainers
- Lexan thickness
- 525 efi rebuild cost
- Batteries
- 496Mag pinging/detonating
- Carbed hp500 fuel pump
- Does when in forward but not reverse
- Anything I should do before rebuilding bw 71c 1:1 powered by 454 efi mag?
- Codes 42 and 43 on 502 MAG MPI. 1995 SN OF764XXX
- Pfm inercooler's
- 2006 Seadoo GTI 4-Tec
- Mercury Racing 600sci oil pressure problem
- Fuel pick-up setups
- TRS to Bravo Flywheel help
- 2004 Merc 575 warning siren won't go away
- lowrance 3500 depth finder?
- 502 MPI 415 HP cam upgrade
- Mercury 525efi wont rev over 4000rpm
- 502 MPI stumbles/dies at idle
- 496 ho mag helppppppppp!!!!!!!!
- Pair of 500 hour 1999 502's needing(i think) new manifolds
- Timing On 1996 350 MAG GEN+ 300HP
- Dominator old vs new
- Jetting, Power Valves, AFRs --------
- Engine Sound "management"
- Dash Switches Replacement
- Dominator Carb tuning
- rapidly fluctuating temp gauge - SBC
- What is a good GPS app for my Android?
- Mercruiser 496 HO Alarm beep
- 350 MAG upgrade
- USCG - friendly fuel pump setups--- EFI into carbed boat
- Volvo penta 4.3 gxi
- Honest Motor Rebuilders
- tether clip, where do you get these?
- Plug question on 906/062 SB Vortex heads
- 5.7 Tuning Help!
- Hp 500 EFI Timeing How Much Is To Much?
- 525 SC spark issues
- Maiden voyage.
- Better cam
- Rough HP / Torque Estimate?
- '96 Mercruiser 7.4 LX (FI) Water Pressure Gauge, Info. Request
- 871 blower rebuilt spec
- cougar mtr 27 1988
- Mercruiser 502 mpi mag rich idle low vacuum new rebuild
- Liquid speedometer
- What kind of exhaust do I have, and what are options for silencers?
- Do all 496's have water pressure sensors ?
- Drives not even height, bravo 1 adjustment
- Need help...engine hesitation while accelerating
- New 502 engine shuts off in Base Timing Mode
- overdriven vs underdriven blower jetting
- Mounting remote PS reservoir
- Head gasket?
- 2 beeps every 2 minutes on Mercruiser 5.7 mag
- oil thermostat opening temperature is appropriate?
- Ignition Boxes
- Procharger problems
- 496HO Double Beep Alarm
- 525 EFI rebuild
- 525 efi bore
- Help finding a used Thunderbolt IV V8 V24 module and wire harnes.
- Is my 500 efi done for the year? Got hot and now hard to start.
- 5.7 spark plug recommendations
- Michigan wheel ballistic xhs 4 blade any good?
- Looking for help on my 502
- Painting or protecting Mercruiser Gil risers
- 454 fresh water cooling
- Rock inside the lower ?
- Water pressure dumps location in plumbing
- 600sci/700sci Crank Position Sensor Code
- -2 Sports Master Lower with 1.36 gear ratio
- Timing settings
- bad motor?
- Pachanga 22 exhaust question
- Pachanga 22 exhaust question
- Anyone ever heard of an omega
- TRS Mercury-Mercruiser 62782A4 UNIVERSAL JOINT
- 850 sci - 1075 sci cam specs
- Water circulation with stainless marine manifolds
- Water in LH bank/manifod from no flapper, what to check?
- procharger vs tbs250
- Milky oil
- Another day of great fun... maybe not so much. WTH?!
- starter fuse
- MSD distributor
- Pachanga 22 Build.. Help?!
- Audio warning system
- Using Thunderbolt V with 502 Gen 6 and Procharger M1-SC in the Land Down Under
- Any diagrams around on how the water plumbing goes for the engine and chiller?
- Where can I find this plastic fitting that goes in valve cover to flame arrestor.
- bad 525 EFI heat exchanger ?
- Engine Rebuild -- What's Actually Involved
- What fuel line can I use?
- Oil Temps
- anyone ever have a sound like this ?
- weighed the boat today
- Engines shut down at 4300-4500 rpm
- Blown coupler or spun hub .... Before I bring to the shop
- Jetting question. Primaries larger than secondaries
- Thunderbolt 5 replacement - MSD ?
- Repair bad ECU V6 MPI PCM 555
- Taylor Made Fenders/Bouy Warranty
- PCV Hose question
- Where's the best place to buy SB Vortex 906 heads?
- Dart or Chevrolet Performance??
- I need a IAC part number
- I have a merc 525 engine miss at 4800
- water pressure drop with rpm increase?
- HOLLEY EFI - THIS is real wierd
- Engine OIl Prelube Plumbing
- Hydraulic Roller Lifter Lash Settings with Shaft Mount Mockers?
- Fume sensor possible error
- Merc 496 Electrical Issue - Ignition
- 454 Mag Leak/Compression numbers
- Thread lubricant, sealents and gasket tack for upper end assembly
- machine marine steering ram disassembly
- Valve "stuck" in 525
- are top mount starter flywheels different
- 2000 Fountain Fever Bilge pump
- 871 rear bearing plate sealant
- High Oil Temp - Chasing a ghost/sender?
- Titanium Intake valves $$$$
- MLS Headgasket measurement VS Bore size and availability
- mercruiser computer reprogram
- Looking for more horsepower input
- Another 525 water pressure question
- Blew a trs today
- Rattle from back of motor????
- Was having a good day until...
- Do tall decks have raised Camshafts?
- 525 header getting hot
- Intake air temperatures with blowers.
- Thermostats in a blown application?
- procharger innercooler problems
- Off the shelf Cam- Dyno results
- Will Ported 308 Dart Iron Eagles work on a 565CI or even 582Ci motor?
- Testing fuel tank
- Will Ported 308 Iron Eagle Dart heads work on a 565?
- Bravo x to Bravo XR exchange?
- Help with trim tab installation (correct angle)
- Need prop selection HELP 99 Python.
- mercruiser power steering issue bravo
- Identifying a cam
- Electrical help!
- Bleeding Air from my hydraulic steering
- TPS Voltage for idle on a 525 efi?
- Sierra oilpan?
- Let's talk ignition
- new to owning a boat got a boat that needs love coming
- NA 555 build CR
- 496 starter bolts?
- clearence issues with 20.5 sport skier 496 need help