View Full Version : General Q & A
- Where to get 4" exhaust hose?
- Bilge LED's
- Mercury racing heads 900-343425
- Oil temp high
- 500hp upper end maintenance
- Tbi/ecm
- Power steering question on twin stock 7.4 L29s
- Jump & Carry 660 Battery Replacement
- Transom assembly torque specs.
- Bravo1 stuck in reverse
- 496 mag ho exhaust
- CMI Headers
- Electric Fuel Pump to replace mechanical pump on 500 EFI
- Difference in engine builders bore stroke combos
- 502mag EFI distributor problem
- Water found in the #8 cylinder of a 496
- How to test float switch Lovett 1200
- 525EFI Cylinder Head Exchange
- Looking for replacement 32 89730
- Ray Marine Axiom/Verado Connection
- Question about transom water pickup installation
- Mobil1 0W-20
- High performance pleasure day boat Atlantic coast
- Thoughts on switching to Holley Super Sniper EFI?
- Regular or Premium?
- 4.3 1 piece manifolds
- Fuel: electric assisting mechanical?
- Supercharged starting hard
- Tide Tamer 4-pole boat lift
- 502 MPI Tune
- Alignment issue follow up
- k plain tabs
- Electrical or fuel?
- 496 mag ho dts to manual
- Working on a Kiekhaefer Trim indicator, any tips would be highly appreciated
- Please Help!!! 1991 Mercruiser 7.4 Bluewater not running on all cylinders
- Mercruiser HEI Rotors 2-types what is the difference
- Weird electrical gremlin - HELP!
- Best way to remove old fuel from tanks
- Engine Compression and Leak down test
- 2001 292 Fastec Single engine St. Louis LOTO
- Fuel Vent VS Fill Orientation
- Exhausting Fuel Vapors from Bilge
- Water pressure / gage question
- Intercooler placement
- 496 mag ho lifting.
- 496 Grooved Idler Pulley
- Gen vi oil temp sender location
- Alignment still an issue
- 8.2 Mercruiser MAG vs HO
- What Gil risers do I need?
- Coupler alignment/bearing
- Helping 02`s live longer
- Sbc timing issue. Help
- 350 mpi ProCharger 7psi fuel upgrade?
- 27’ cigarette transom box
- Exhaust for NA 650 hp bbc 540
- Horizon 454 MAG MPI
- Coupler alignment dilema
- 454 MAP to 502 MAG ECM remap question
- Imco Black paint
- Camshaft for 781 heads on Mercruiser 330hp
- Webster stud girdles with Keith Eckerd 2pc valve covers
- Promaster coil
- Quad rotor whipple questions
- Survey in Ontario
- Cummings 6BTA Gauges
- 5.7 MPI questions...?
- 1996 Scarab Steering wheel Clockspring Issue
- Prop Location, X Dimension
- Best option for Bravo One Sea Water pump ?
- Hydraulic steering
- Edelbrock heads
- Heads
- 496 build
- Marine design software
- 390 1982 cc scoripion. Carb tuining situation Oh my!
- MSD vs Thunderbolt
- 600 SCI no power at fuel pump
- Lancote or Tef-Gel
- 572 tall deck cam
- Which trim Tabs to go with?
- Good marine engine builder close to vancouver bc?
- Electric fuel pump?
- 1990 Rinker 236 Mercruiser Bravo one
- What Dart block do CPperformance sell
- Dyno session w QF 850 "marine" carb LEAN
- Mercury Racing 520 info???
- 350 Mag MPI suction at dipstick?
- 72c velvet drive electric shift.
- 575 SCI Wiring
- Gen V 502 Piston Question
- GT Performance & Pfaff/Baca Marine
- 496 Cam Recommendations
- Air Intake Manifold or Riser Gaskets?
- What exhaust manifolds are these? Gil copy
- AFR heads/MK-IV on Gen VI block
- Merc 420 roller cam upgrade
- 350 Mag MPI
- Jescar powerlock plus or any sealant wax
- Donzi Classic 22 Blackhawk Exhaust
- Power steering Cooler, Do i need one
- 454 mag mpi combos with stock manifold and silent choice?
- Would reversion be a concern 420hp
- I have reversion but I shouldn't
- 1995 502 mpi blow by
- Reading filter media in an oil filter after cut open
- Exhaust tips 4" to 6"??
- Water pressure gauge on 1988 Johnson outboard!??
- 1996 7.4 mpi lx fuel issue
- Raw Water Pump Part Number
- Spark Plugs for 540
- EFI kit basic.Whats available
- Outdrive Alignment
- Need help choosing 454 mpi Cam!?!?!?!
- out drive swap,bravo 2 to 3 ???
- Lubricating Teleflex Cables... Is There A Way?
- Transom cable bracket
- IMCO Hydraulic Steering overflowing at reservoir
- Tape or paste on steering fittings
- Renewal......really ?
- Anti siphon valve replacement
- 96 Fountain Lightning 42’. Triple sc600
- Flywheel for 2000 Mercruiser 4.3 v6 vortec engine
- Exhaust riser temps at idle
- 496 mag ho
- Shark skin or dimples?
- Trim Tabs Alternative use?
- K-plane identification
- Weiand 177 intake bolts (454 Mag)
- Carb choose
- What prop is this???
- 232 Islander "hook" in lifting strakes?
- Let there be light
- f16 1/4 canopies need help
- Bravo to #6 conversion?
- Compass Help
- Surveyor in Indiana
- What are tricks to making a boat go faster (other than HP)
- 525 EFI oil temperature
- Fuel rail mod.
- seahawk boat
- Hard warm start vintage BBF
- Whipple 2.3 is it too small for a 540 cid bbc?
- Which intake gasket?
- Best Blower Carburetors for BBC 598 Boost Referenced
- Help identifying camshaft
- Bilge Pump Alternatives - Rule
- 31' copeland race cat
- Antbody know to plumb this Oil Filter Head?
- Who sells used 7.4 MPI L29 Serpentine Accessories
- 7.4 MPI L29 Serpentine Accessories
- Mercruiser Thunderbolt IV Ignition Module
- 502 build , cam, heads questions.
- head gasket advice
- Speedmaster heads For BBC marine?
- How to remove these bolts
- 496 Mag: Temp Sensor vs Temp Sender
- Blue Motor Pulleys
- Intake
- 3D printed motors...only a matter of time....
- MRD in Long Island
- Aluminum heads
- Merc 377 blue scorpion tune
- What's going on inside my motor(pics)
- stelling headers
- 174 on a Small block?
- Specific lifter question
- 500 efi vs 525 lower intake differences?
- Matt Black or shiny ???
- cylinder head en france
- 33 Scarab AVS performance test
- Whippled 500EFI cam question
- Cam help for a 502
- Hardin cyclones
- Arizona Speed & Marine EFI's
- Holley EFI O2 sensor
- Cost to freshen up a 502 MPI
- Blackhawk drive shower
- Can help
- Bravo drive shower
- Bravo fresh water pump
- 434 cam.
- Drive spacing
- NOT A CAM QUESTION, Valve spring question
- Offshore race boats from 80's
- Cam choice
- Winterizing Question
- Any Tao Tao dealers on here
- Flush Kit for Merc XR Drive
- Flywheel options
- Hydraulic steering cylinder stop
- Mercury blue paint
- Odd water leak question
- 650HP NA exhaust question.
- Contemplating top-end swap
- Oil Pan Choice
- Bravo Impeller Failure after 5 hours
- 1075 to custom power
- 2 into 1 transom tips
- Sending units
- Fresh 525s. Priming fuel?
- Serpentine pulley upgrades
- 496 Pro Charger owner with COG drives
- Blown ECM
- Repower, Thinking of Ateco 540/635 engines
- 454 mag mpi cam help NOT Tyler Crockett
- Harmonic Balancer
- Who can tune a 525??
- blown injector driver in ecm
- 2020 Corvette - Did Mercury do the engine?
- Water lift mufflers
- Bezels
- Avatar
- Question on Poweflow
- Re Jackplate Offshore boat
- Surging idle Mercruiser 496 Mag HO 8.1
- COG drive help needed
- Baja 180 islander question
- mercury racing oil filter VS K&N 3002
- Trailer brakes locking up
- Chris craft stinger 260. New x-dimension
- Fuel valve for return lines
- 540 troubleshooting MAP vs. mechanical gauge
- Unattended boat on lift for a few weeks
- Converting to Holley Sniper EFI
- Mercruiser 6.2L MPI low oil pressure
- Water Temperature won't get hot enough??
- Trim Pump Bleeding Down
- 454 Alpha hard to start, dies at slow speed
- 496 Base Engine Problem, Faults, Guardian Mode HELP
- 496H0 - Sea Pump pressure fluctuates
- Sbc, afr/ratio.
- New vs older style k planes
- Internal balance vs external balance
- Torque Lean
- 454 Mag MPI gen v rebuild help
- Cracked spark plug on HP500 carb, Stock or Iridium replace?
- ARP 135-3601 Cylinder Head Bolt Set
- Bravo-1 and X drive part numbers.
- B&M (Holley/Weiand) 174 blower intake manifold corrosion
- Holley HP EFI Rant Holley Tech rant
- 575 SCI dumping fuel
- 8.2 mag ho ect b3x dts
- 454 mag efi/mpi died while running
- Custom exhaust tails
- External add on line reversal symptoms?
- Exhaustmanifolds questions
- Stelling extension box bearing
- I am lost!!!