View Full Version : General Q & A
- Repowering..
- Water pressure Line question
- Need Expert Mechanic on Mercruiser 496HO Fuel Injection System
- 1990,s 800sc motor?
- Can I run a 496 PS pump dry as an idler?
- Yearly Alternator Dying
- Thunderbolt IV V-6 Module
- Wide band O 2 a sensor placement
- Water Flow Issue
- Timing procedure for Volvo Penta 5.7 GS
- Trim Tabs Flat Or angled ???
- Repower
- When to rebuild/re-fresh Blown 540s?
- Holley 4150 tuning
- Does this motor look rebuilt
- Parker fuel valve solenoid replacement/substitute
- food for thought, fresh water cooling
- extra idler to get more belt wrap on procharger drive belt?
- Need press in hub for mirage prop
- spark plugs for Dart 1-014-2 heads
- Mercruiser 502 magnum efi/mp gen VI
- Hello from New Hampshire
- Mercury Smartcraft alarm going off
- 502 running rich on one side
- Oil change interval for 525?
- IMCO extended drive shaft
- Anyone know where the new shop will be?
- Working on a boat deal, but have some technical exhaust upgrade questions
- Big Block Actual Dimensions
- Mechanical fuel pump
- Need help, no oil to rockers on 5.7 sbc - long description!!!! sorry!
- 502 carb 550hp - Blower vs NA
- 91-2013 fountain 29 help
- Boy my top gun. Certainly ain't my little rocket ship
- Any problems unhooking speedometer hose from B1
- ok who got some info on scorpian motors out of livornia mi
- Fuel Consumption -- a justification
- HP500 Valve Covers Won't Fit W/Stud Girdles
- n/a piston to wall clearance.
- Possible oil pump gears binding with a Melling 10778? Has is happened to other?
- Bravo XR trim leak, help..
- Bravo 1 steering actuator
- Does an OMC King Cobra setup have any value?
- dominator tuning
- Burning smell at high RPMs?
- HP500 Built to 540
- Bravo 1 steering problems
- Bravo 1 steering locked up
- Another oil pressure issue
- exhaust leak need gaskets
- Hardin Marine
- Anyone ever heard of or tried making vent tubes for a bravo drive like #6's
- Random alarm at speed
- 350 MPI issue and possible options
- Cleaner/wax ect best stuff is???
- 502 vst problem
- corsa captains call solenoid?
- 240 baja undriveable at speed
- Rotors
- ended up buying cig top gun . so im thinking selling my hull no motors or drives
- Water in drive, oil in bilge.
- Bravo 1 s/n identification help please
- Help Please - re-jet 454 merc carb
- Toasted the bearings. Anyone Know why?
- Traverse city, Mi - POKER RUN "need ride"
- Power trim pump was running under water, replace motor or complete unit??
- Baja water in fuel??? Help.
- Crane Gold poly lock failure
- Need help getting on plane
- Bds blower, what should I torque the bolts to?
- Gauge upgrade help
- Wiring Harness
- What size lifter gallery screens to use
- Can I use Power Steering fluid for Trim Tabs
- please explain the basics of hydraulic trim tabs to a newbie
- oil pressure sender - suitable location?
- stainless marine exhaust
- Raylar 496 IAC valve.
- How many engine builders like to use zero gap rings?
- 900sc What jet sizes are stock for the carburetors
- motor not making the power it should be
- 525 SC Good, Bad, and The Ugly Truth???
- 7.4mpi with cmi headers which gaskets
- Merc smartcraft showing engine malfunction
- Carb question. Is this suppossed to be open?
- Going to dyno my Procharger head unit, any guesses on how much hp it takes?
- 30' cat single hp500 WOT 3500 no more? Need help
- Fountain boats Weight increase from 2006 to 2007
- Engine flooding
- Water Pressure Line
- MSD ready to run limiters issues??? anyone?
- Milky blowby from valve covers
- 496ho misfire and intermittently stalls when starting up
- Wideband location ...
- Mystery motor please help identify bbc
- Water pressure Mercury Racing 525 EFI
- MerCruiser Gil exhaust manifolds What motors did these come on?
- Harness
- Add on hydraulic steering only turning right?
- Small block EFI build
- Tube pulling duty - best to prop down?
- Failed Lifter Diagnosis Help Needed
- Daytona Sensors question
- Which is better Sarasota or marathon races?
- 632 CI 815 hp.... 12,000.00?? come on....
- Intense marine
- Exhaust Question
- 6.2 rebuild
- Imploded Scarab 29 - Lake Conroe Texas
- 377 oil pump
- IMCO -3 shorty - water pick up slot
- Pilot Buhing
- Stalling 502 mag mpi
- Why no intank fuel pumps?
- Just Confirming - Cometic Head Gasket Reusable??
- looking for a 502 crankshaft
- 07 38 Top Gun new power, need props?
- Help finding Part # for rear main seal SLEEVE for GEN 6 502
- Power steering quits working at high trim?
- 1979 thunder craft shift problem
- Mercury trim pump wiring (diagram), is this right?
- Mercruiser 5.7 engine swap, flywheel/coupler question.
- Turbos and centrifugals
- 7.4 L mercruiser 4 barrel won't kick in
- Trim tabs indicator cable lengths..
- hi perf merc efi; ever used in a motor vehicle? OEM?
- Q-Jet to Hollry Carb Swap Question.
- Are fuel pump pushrods supposed to rotate?
- Merc theromostat housing gasket ?
- mercrury 1075's oil pressure
- Huber 925 info request??
- 1075sci
- Marine Fuel in Southern Michigan - Jones Michigan
- For sale
- breaking up after 75 % throttle
- Exhaust Bolt holes blind?
- Installing external hydraulic steering questions
- Anyone on here have a 30' cobra terminator cat
- Morel vs Johnson lifters. Info needed
- 454 has major stumble/flat spot at 3/4 throttle but runs great at WOT - diagnosis?
- Operating Temps n/a 540's
- Who make the hatch actuator for Advantage in 06
- Engine break in oil change
- Help with Flywheel or Ring Gear decision
- HELP! New 8.2L with CATs has sand in air valves?
- 5.0MPI motor pull and oil pan
- A/f 540ci n/a
- Fuel pressure @ wot
- Afr meters
- Holley/Edelbrock/Clay Smith 6-valve rebuild kits still available?
- Engine Stumbles with Tach Jumping......
- Yay ... Fun with wires
- Which torque wrench do you use?
- Sputtering at WOT
- Stupid question: What's the stock Mercruiser 7.4L throttle cable bracket look like?
- Depth Sounder and GPS
- Help with 502 Mag
- Anodized cleaner for painted aluminum
- Help with a newly rebuilt HP 500
- Engine torque specs 575sci
- 525 EFI Oil Pump Drive Sensor
- Quick Rinda mercruiser question 555 adaptor
- wiring diagram
- slight miss when i hit the Trim ?
- 2004 496. Differences ?
- Fresh Water Flush Kit - operation
- Mercruiser 5.0 EFI - Not firing.
- Alpha drive tear down and install problem
- Power In Power Out
- Depth sounder problems
- Raw water pump issue 496HO
- Dry - To - Tip Thru Transom Exhaust Help
- Safe RPM for Merc 420hp
- Using my 454 mpi intake on a bored 502
- Merc 496 HO / Bravo 1 steering issues
- E-Z Tow Trailers.
- feedback
- Merc Fuel filter, part numbers
- Remote start and alarms for boats
- Rev limit problem 8,1 inboard Mercruiser (496 Mag)
- 496 ho iac not responding
- Yamaha base timing mode???
- External flap
- Bravo One Tie Bar issue
- 97 Baja Boss Hammer
- Throttle Adjustment - how difficult
- What all is different between the 502MPI's "97" and "98" ???????????
- Question on new A/C units Dometic vs Webasco vs Mermaid
- Emi exhaust still reverting
- 7.4 motor runs then it don't
- bravo 1 to Bravo xr price difference
- How to tell the difference ?
- Bravo dual water pick ups
- CMI header overheating
- Best Spark Plug To Use
- Mercruiser 5.7 EFI - knock or ping under heavy load
- 575sci what hyd rollercam to use
- Do I need water pressure gauges?
- well its official fourhoaresman did my tranny in
- Hesitation / Bog under acceleration
- 454 MAG vs 502 Mag fuel curves
- Thunderbolt IV question/ issue
- Water Pressure Gauges
- 6.2 mpi intermittent stall
- k&n oil filter on billet aluminum mount.Almost impossible to get off. Anyone else.
- Extension box - external steering
- 500 Bulldogs
- only one company that makes headers ??
- Looking for a good 350 Vortec setup.
- quickfuel carbs
- shift cable adjustment tool/ plate for a OMC Cobra (1986) drawing or CAD file?
- Triple 500 HPs to twin 575 SCIs
- Question about B1 transom assemblies
- What cam button???
- Exhaust port deposits
- Walmart oil prices.....
- mpi running rich at idle
- Freeze plus Chevy
- 500efi intake gasket
- What Temp Sender is This?
- Older 110s kplane
- Mercury 1100 Valve Lash
- T-stat housing plunbing
- 489 Temp weird temp issue
- What Engine Oil for Superchaged Engine?
- Installing thru hull tips
- Questions about big power
- 548 or 572 BBC N/A Build Assitance/Advise
- Alternative to Rubber Exhaust Flappers??
- Deutsch or Weatherpack or Metripack?
- Water pressure too high?
- Sierra vs. Mercury / Quicksilver
- Gen V marine 502
- catamaran planning issues. 30' Chris craft
- Replacement 5.7 350 engine
- Holley EFI/DIS Conversion
- 2003 fountain 29 cabin door gas assist cylinder for top flip up door
- 500efi head gasket
- 496 ho drive coupler question
- Speedo hook up?
- Tachs not getting signal from smartcraft
- Engine swap question
- 454 blower update.
- Help - Merc 454 can only get to 3900 rpm wot
- weird distributor problems...
- 454 Mag MPI: Strange cold idle….almost sounds like a 330hp for a few minutes
- Wiring question on an engine swap
- Thermostat Questions - Notched Gasket?
- HaxbySpeed
- after market exhaust 350 mag mpi