View Full Version : General Q & A




  1. merc mefi 3 question
  2. Transom that was mounted with an X drive mounting a Bravo 1 question
  3. 496 HO 152 IAC Output Code
  4. who do i contact to fix my username to post a classified ad
  5. 1997 502 EFI cranks but won't start, will try and run after shot of starter fluid
  6. Fuel System Fittings
  7. 377 flywheel
  8. 496 HO maintenance while replacing transom assembly
  9. What are they worth?
  10. Vibration on down trim
  11. Where to purchase oil coolers and hardware
  12. 525efi rev limiter
  13. prop changes from 1.5 to 1.36
  14. 1999 Merc 454 mag ign issues
  15. motors bogging ? fuel pressure maybe?
  16. Engine Quest/RHS 320 Iron heads
  17. Starving for fuel...
  18. Can These Be Repaired ????
  19. QUICKSILVER SBC long block assembly worth building?
  20. I need to find a good shop in the Gulf Shores, Al or Pensacola, Fl area
  21. Aluminum Head Exchange to Steel Head
  22. Prop shaft carrier bearing stuck
  23. Aluminum Head Repair
  24. how hard is it to mefi tune my own after i install procharger
  25. 5 blade on 2004 288 sunsation
  26. Value Of a 91 Mark IV 502 Mag
  27. dry exhaust
  28. Volvo Penta 7.4 Gi vs GSi rev limiter
  29. tall deck to short deck exhaust problems
  30. Opening a can of worms
  31. merc xr gear pinion
  32. Trying to identify a pair of Mercury OB's
  33. Front Seal Unazzed
  34. 1998 Mercury 250 EFI
  35. 496 with whipple worth
  36. 350 mpi possable reversion
  37. Carbed 502/502HP fueling issues on 1996 Baja 272 Islander
  38. 502 magnum mpi IAC crossover
  39. Wrong oil?
  40. 454 Baja overheating
  41. Anyone know how too get ahold of mr gadgets?????
  42. Felpro 17042 vs 17046
  43. Roots Supercharger experts Snout problems
  44. 500efi - starter burned up + more - Help!
  45. Fuel supply issues
  46. Checkmate 251 Convincor vs Profile 26
  47. 1989 Power Play Conquest Decals
  48. Latham Steering Leak
  49. 502 EFI shutting down after 5 seconds of run time
  50. Part numbers question
  51. Volvo Duo prop
  52. Hp 500 carb setup help
  53. One exhaust is only shooting out water
  54. HP500 boost question
  55. Help 502 EFI stalls out
  56. 1996 HP 500 Carb lifter part numbers
  57. Removing CATs on new 8.2L motor
  58. Low oil pressure and Oil cooler questions
  59. Ram air
  60. Mayfair Hydraulic Steering Ram Rebuild help.
  61. 2001 555 PCM to mefi 3
  62. motor not hitting WOT?
  63. Need help with engine issue
  64. Knock came and knock left
  65. Paging skater Scott 36
  66. Mercruiser 496 ho overspeed code
  67. Raymarine DVD
  68. A little roots blower info.
  69. Can you please direct me to some Velvet Drive Identification information.
  70. Are my 454's magnum's??
  71. which fuel transfer pump to use ?
  72. 500 efi fuel fouling plugs
  73. 525EFI Header Failures - CMI vs Hardin - All failing
  74. Mercruiser Computer Programming
  75. 525 EFI sea pump stops pumping
  76. Fuel Pressure
  77. Should I scrap my anti-spam valves?
  78. 088 heads on gen 5 454 ?
  79. Trim and Tilt Pumps, why is one so much faster??
  80. what is killing my fuel pumps?
  81. SBC to BBC Conversion Questions
  82. Bilge pump in Fountain left running dry- are they toast?
  83. solenoid or trim pump bad?
  84. Gaffrig controls neutral safety switch
  85. 600SCI Gurus Needed -- No BOOST
  86. 088 Heads Max lift?
  87. adding 174 blower
  88. 502 Mag Removal
  89. 525 Header issue; I'm stumped..
  90. Top speed and cruise speed and gearing advice new to forum
  91. Pump for toilette and post-swim hotwash
  92. What Size Carb.
  93. Anybody use these boat dollies?
  94. Looking for advice
  95. SSM V alignment tool
  96. Starboard motor won't start - electrical, fuel?
  97. Mirage won't plane off
  98. Can anyone help identify this boat, and help provide feedback on possible purchase.
  99. 500 EFI Fuel Line longevity
  100. Cigarette 20 Update
  101. Fuel feed issues
  102. Time to replace fuel lines?
  103. Misfiring carb 502
  104. How much does Deck weigh on a Formula 302 SR1. I want to lift it to access stringers
  105. 525 EFI Alarm
  106. Noise when shifting
  107. 525 EFI H2O pressure?
  108. oil temp
  109. Merc 5.7 2bbl 1998 unique concerns.
  110. Replacing dipstick tube in 454
  111. Oil pressure problems!
  112. 454 to 502 repower suggestions
  113. PBM/Erson rods and cranks, comparable??
  114. 500efi overheating hot port header, help
  115. jet size
  116. Motor question for the Guru's...
  117. HP 500 carb fuel mech pumps
  118. Intake to head sealing issue question
  119. Collapsed lifter, bent pushrod
  120. anyone make hinge pin covers?
  121. Value 26 Prowler
  122. Ride quality older 38's which ones to look at
  123. need HEI DUI distributor info
  124. Hardin Marine - Hurricane Lite 525 Headers -- who's got 'em??
  125. solid or rubber prop hub???
  126. 525sc conversion
  127. 7.4 freshwater cooling
  128. Lower than I like Oil Pressure
  129. marine a/c units
  130. aftermarket mechanical fuel pump
  131. need help with code 42 on V6
  132. O2 guage
  133. Bravo 1 Vibration in forward drive not reverse??
  134. Dual trim pumps, one switch?
  135. Remote trim switches
  136. Reading Starts Me Thinking - More Power
  137. Water in fuel lean condition.
  138. Low oil pressure in brand new 502 efi
  139. Serpentine crossover kit
  140. power gone from my 8.2 mercuiser
  141. Moisture in valve covers with oil thermostat?
  142. Power steering leak
  143. 500HP carb- synthetic oil?
  144. oil spray from the front of a new 502 motor custom built
  145. Intake ?
  146. Swain Tech PC-9 Piston Skirt Coating
  147. 81 Formula, both alternators do not work?
  148. Water pump shaft seal
  149. Oil filled bilge - need advise please !
  150. how do you align an engine?
  151. efi vr carb
  152. Easiest way - converting 502 to EFI
  153. 502 mpi no inj. pulse on 1/2 the inj ?
  154. Fuel Injector Replace/Repair 805225A1
  155. Switch standard Bravo 1 to XR?
  156. has anyone ever powder coated blower pulleys
  157. PCM 555 codes
  158. 496 Mag HO front motor mount options?
  159. Camshaft sensor for 2001 496
  160. Murcury Racing HP500
  161. Old School HP500 water pump blown gasket (NOT SEA PUMP)
  162. Fuel tank level sender for formula needed
  163. Quietest thru transom exhaust setup
  164. Oil pressure gauge?
  165. Sloppy steering on bravo want to add hydraulic steering
  166. Which brand do you like?
  167. Merc 5.7 - 260hp
  168. Rapid beeping?
  169. Nordskog sending units?
  170. Autometer Gauge Connections
  171. prop slip?
  172. 781 heads best mods
  173. 38 Fountain fever wind deflecter /where to get one?
  174. How to tell the diffrence between a bravo 1 and 2
  175. any holley TBI experts here?
  176. Cam question
  177. Stupid cam shaft idea? Serious question
  178. Jetting starting point?
  179. drive position indicator - cable type
  180. gen 4 gen 5 question
  181. 1986 Wellcraft Nova III opinions please
  182. Oil sending unit and -----?
  183. 781 bbc heads from auto?
  184. Voltage regulator?
  185. 502 Mag Mpi Issue
  186. Measuring Compression Ratio
  187. Any good internet dynos??
  188. Raylar 496 HO upgrades
  189. 502 500hp efi sumble /stall
  190. Good oil pressure sending unit
  191. Stock 330 fuel pump question
  192. Long or short risers needed for this cam?
  193. Mark IV 502 Mag Hole In Piston And No Oil Pressure Help!
  194. 1000 Islands Poker Run Who is going?
  195. I need 1 set of Stainless Marine Exhaust for a SBC. Who's got the best price?
  196. Sea water/fuel pump questions. Leaking oil.
  197. PowerQuset Interior Lights - HELP NEEDED
  198. Could backfiring cause this?
  199. 454 Cam selection down sizing?
  200. if i had water in bravo one fluid...
  201. csm with vinylester
  202. Mercury efi to holley efi. How to get the correct throttle throw.
  203. electric circulating pump??
  204. Iac for 97 454 mag MPI's part number anyone know.
  205. Q-jet jetting help please
  206. Exhaust Riser gasket?
  207. guys I need help please 496 ho surges almost dies...
  208. Helm joint replacement?
  209. Any A/C techs on Long Island?
  210. EMI Thunder Exhaust On Stock 6.2s
  211. Serpentine to v-belt
  212. Strange MPI problem....
  213. 525efi milk shake
  214. 350 mag miss HELP please
  215. engine fault code?
  216. What thermostat housing for closed cooling system??
  217. blowers
  218. Hard steering at speed..
  219. 502 mpi mods......
  220. Fuel Delivery Issues
  221. Need part # for seal on water pump.
  222. Another newbie prop question
  223. 1997 sv24 challenger boat
  224. MSD Distributor
  225. Help! Merc s/c seals & bushings
  226. Posting pictures with an I Pad
  227. Gen5 to gen 6 have had nothing but problems
  228. Need Torque specs for top two bolts on gimble
  229. 280 Tabs to 380 tabs
  230. Marine Machine Hardware
  231. Small water leak on a XR Drive
  232. Black hose water drain system 496 HO
  233. Solid Roller Cam Worth it??
  234. Weak Starting - Ground?
  235. HELP!! 1996 Baja 302 windshield broken!
  236. circulation pump failure???
  237. How much hp will this build produce
  238. Power steering not working replaced parts...?
  239. Motors marked "BRE 168" any ideas?
  240. square k planes
  241. Simple oil cooler upgrade
  242. Prob and drive height suggestions for Donzi 25zx w 625hp
  243. vacuum pump, blown big block
  244. Merc 502 efi code 23 iat censor
  245. 500 efi exhaust issues
  246. Aluminum Intake manifold + salt brackish water
  247. Mercruiser Automatic Transmission
  248. Where's oil thermostat on merc 525 please
  249. What's considered too much oil pressure?
  250. Melting exhaust boots but engine not running over 180!?!?
  251. milkshake clean up
  252. Spark Plug Gap
  253. Benefits of quad rotor
  254. Any Fast 22ft Stingrays maxims out there??
  255. Distributor housing oil boss
  256. Building a new trailer for a 87 Midnight express 37'. Need help!
  257. Cast crankshaft OK?
  258. Reversion possibility question on SBC with XM270HR cam
  259. Riser gaskets...which one?
  260. 502 MPI w/cool fuel return line fuel flow
  261. Best way to clean the outside of an engine covered in oil?
  262. Replacing MEFI1 with ?
  263. Mystery Piece of Stainless in my Exhaust Tip - please help identify
  264. 8.1 oil bypass valve
  265. Stainless vs brass sea pump
  266. Longevity MIG welder
  267. crane 741 cam and stock roller lifters
  268. 502 fuel injected spudders and dies randomly
  269. Mercrusier 350mag w/Bravo 1
  270. Silent Choice Exhaust not opening.
  271. 500 EFI Powersteering pump defect ???
  272. Pressure test headers question
  273. Trim Tab screws ...kinda came out ....?
  274. Cam recommendations for these heads?
  275. 525 vs 496HO
  276. 454 EFI making a sqealing sound
  277. Mini Starter
  278. Fuel level in cool fuel module 496 HO
  279. 38 Fountain Lightning Worth It or Not ?
  280. EGT ranges procharged carb 555
  281. Hydraulic Ram...Who makes this?
  282. Bad powersteering pump?
  283. Liquid filled water pressure gauge problem
  284. 496 HO in-line fuel filter
  285. Using A MSD Box With Stock Merc Distributor
  286. Engine cover help
  287. Engine trouble shooting help needed.
  288. Any feedback on Venture aluminum trailers? specifically the tandem 5k axle 8725
  289. crank choices
  290. What do you clean your boat with?
  291. Installing water pressure gauge
  292. Oil cooler suggestions for 468 bbc
  293. Value of a mark iv standard 454
  294. Mercury Zero Effort Throttle Wiring
  295. Power Steering issues
  296. Choosing an oil pump
  297. Screws for exhaust tips?
  298. Looking for an engine builder in South Florida...Who do you know?
  299. OX66 Outboard gages to Gaffrig
  300. 454 Mag MPI not revving.
  301. Heat issues help.
  302. Old merc 90 outboard question
  303. Replacement iron heads for Edelbrock RPM performer
  304. Trim Tab Cable Help
  305. Mercruiser 6.2 Upgrades
  306. 704ci Motor Help
  307. 137-9400 mayfair steering
  308. Carb help
  309. Heavy duty shift cable??
  310. Motor Shut Down Filter/Pump/Other
  311. intermittent nav lights and fuel gauge problem?
  312. Baja 260 with 454.... Has mufflers and would like to remove them.....
  313. Gen IV 502 No Oil Pressure..... Help
  314. Timing question..502..
  315. 525 SC fuel problems
  316. 575 sc
  317. hesitation, intermittent backfire etc
  318. When will thes 525s require work?
  319. Running hot according to the gauge.....454
  320. Prop slip calculator
  321. wiring help
  322. Need VDO Temp Sender
  323. New engine in Formula, more problems then a math book!
  324. 502 mpi v-belts part numbers..
  325. TRS transmission problems
  326. Impeller problems
  327. 496 mag help
  328. Size of harmonic balancer pulley bbc?
  329. How fast is an 88 scarab 1 with an efi 502????
  330. Mercruiser 5.7 efi fuel pressure kit from Autozone
  331. 502 mag MPI starts then stalls after replacing cap, rotor, wires and exhaust!
  332. Just got a noise ticket tonight - need options
  333. Broken dip stick tube on my 260 Merc
  334. 454 oil burn... questions on what to check first
  335. Throttle / Shift Controller - Sea Star or Mercruiser
  336. Thru hull tip internal flapper broke
  337. 496 8.1 Timing cover and gear question
  338. LED Gauge Upgrade
  339. 29' baja is shift cable longer with an imco extension box on the drive
  340. ignition troubleshooting ??? help please
  341. External voltage regulator wiring question
  342. 525sc upgrades for more hp
  343. HP 500 intake grommet??
  344. water in oil on fresh rebuilt 468 with m1 procharger intercooled.
  345. power steering pump question..
  346. 502 Catastrophic Failure!!! Why does this happen?
  347. trs to speedmaster
  348. Screw in fuel sending unit
  349. 496HO manifold over heating
  350. K-Planes Bolt Length
  351. Leakdown Test vs Compression Test? Help with a used boat.
  352. Circulating Pumps on 600sc (Convert to X-Overs)
  353. A/C questions
  354. 525 EFI Oil Pressure to High at Idle
  355. Rough idle?
  356. Fuel pump and delivery
  357. Hairline crackin one blade of stainless four blade prop
  358. power steering only works at speed
  359. 1 merc. 700 keeps vaporlocking
  360. New Mallory Ignition, no spark
  361. best replacement trim tab cables for merc k=planes?
  362. 32 fever with small blocks
  363. Feather throttle to keep running until reaching operating temp
  364. Air Fuel ratio
  365. How much HP? on my 454
  366. Comzilla intercoms
  367. Part # for 500 EFI impeller
  368. If you had a choice which one
  369. 1998 Mercury 250 EFI Factory Shop Manual
  370. B&M Blowers 174 type. timing issue?
  371. help! info on powerquest
  372. manifolds length
  373. Dumping cooling water, lightning headers.
  374. silent choice, issue or something else
  375. I.M.P Viper 310 help
  376. Formula 233
  377. I think I stuck a valve
  378. plug gap
  379. Question about GMPP 502ho crate engine.
  380. Shop Labor times to Pull a motor
  381. Hyd steering hose??
  382. 525 Oil Temp Sensor
  383. Carburetor Help
  384. Mefi 3 ??
  385. 502 dies at wot
  386. Help Please!!!! 88 Four Winns Liberator 211 is SLOW!!
  387. Oil Temp Issues
  388. Another 525 Header Issue
  389. 496HO: would IAC cause this? 1 engine lagging intermittently lagging 100-400 RPM
  390. 525sc idling at 180* rising to 210*
  391. New GM 502 Vibration above 1500 RPM
  392. Whats TO HOT FOR OIL TEMP
  393. Right thrust washer? Hub?
  394. Firepower control box
  395. Gen 4, 5 and 6 GM heads same plug reach?
  396. over cam'd motor or pump problem?
  397. Need help with Kohler 5ECD Generator...
  398. Russel Performance AN swivel fitting leaking
  399. A/c unit help
  400. 350 mag mpi won't turn off???
  401. is this a sign that the hull was rotten?
  402. 2 Alternators to choose from
  403. blower size help
  404. Replacing stock thermostat housing with Stainless,,,,,
  405. Mercruiser silent choice
  406. How often to clean the air intake 7.4 mpi
  407. Mercruiser Rev Limit Ignition by Firepower
  408. 496 whipple boost
  409. Cigarette 24 info
  410. Led Cockpit lights
  411. Exhaust Problems
  412. Cobra outdrive not pumping water
  413. Trim not moving evenly
  414. 502 water reversion
  415. Ultimate Warlock 24' Euro
  416. Alpha hit something no forward or reverse
  417. FAST Programmable EFI
  418. Oil foaming out of lower unit trim pump reservoir only while trimming lower unit.
  419. Loose/missing exh flapper
  420. Engine won't get boat on plane - ignition issue?
  421. blown 900 ate a distributor gear over the weekend, what now......
  422. Cost to rig a new hull?
  423. Outdrive Control Box
  424. 502 ss trying to get a hold of u bro ??
  425. Morse Controls
  426. Mercruiser Head Gasket Sealing
  427. Why no oil cooler 350 mag MPI
  428. Go Fast needed for a wedding
  429. Noise at Higher RPM's..... Details inside
  430. Rooster tail fittings on Normal drives - What and where?
  431. Removing compass
  432. Another water in oil milkshake thread
  433. Water in motor..need help fast!!
  434. Head Gaskets...head bolts..
  435. Baja 252 motor help
  436. When started, EFI motor will not idle below 3000 rpm
  437. Smart craft trim limit switch
  438. steering question
  439. Serp belt tension
  440. Lubricant for silicone exhaust hose?
  441. Painted boats hull cleaner?
  442. Scratched CMI polished Sport Tubes
  443. corsa solenoids ratling when diverted to prop
  444. wiring questions
  445. timing chain question
  446. transom assembley help
  447. Pondering the thought of doing a LS motor.......
  448. Any wlders in the house?
  449. Junk VST Electric Fuel Pump
  450. Hardin Gen 7 Sea Pump Install
  451. Motion actuator for power bolster seat, I need one from a Fountain or other boat!
  452. New engine ready to fire but WONT! Expierenced techs Please Help!!!
  453. Steering leak at the helm
  454. Boost referencing carbs
  455. recommended manifolds for 540 tall decks 600hp innovation marine
  456. twin engine fuel burn from side to side.
  457. Drain plug adapter
  458. 496 ho
  459. 03 496 ho double beep
  460. Horrible Idle on a holley 800..
  461. Smallbock oil adapter
  462. WTF,, does anyone make a tall life or ski vest for guys 6'-6'+
  463. 900 low oil pressure and cold filter after oil change???
  464. Recommended GPS with depth capabilities ?
  465. more HP for 502 mpi
  466. Lake Texoma Eating
  467. Running rough at low RPM after warmed up
  468. HP500/ BBC short water pump part#
  469. 502 MPI Surging over 4200 RPM
  470. New Oil Coolers? Yes or No?
  471. Gaffrig oil pressure sender
  472. Merc 7.4 Gen V clicking noise
  473. FAST Air Fuel Meter??
  474. RPM Drop in 1 Engine
  475. 12V DC Air Conditioner - Anyone have any experience with them?
  476. 496 with Whipple
  477. Gen IV Heads On Gen V Block Coolant Port ?
  478. Ethanol resistant fuel line?
  479. motor swap, now gauges dont work
  480. flame arrestor
  481. kiekhaefer trim tab manual or information needed...
  482. Throttle response.
  483. Anyone noticed slower speeds with the higher air temperatures?
  484. Heat Alarm wire..
  485. 1999 Donzi 26ZX performance results with new 502
  486. 600sci Impeller DIY?
  487. Replacing trim and drive indicator cables on Bluewater Performance panel HELP!
  488. Who designs custom dashes for older boats?
  489. Seeking a brochure for a 20 foot Cigarette
  490. Cast Iron manifold -> Stainless exhaust pipe
  491. Valve cover removal with exhaust on?
  492. Mando alternator wiring....
  493. Merc Racing 525EFI. SAE or Metric fasteners?
  494. Dana Exhust
  495. Replacing 502 with 496s
  496. Replacing 555 on 496 with MEFI Controller
  497. Exh manifold leak test w/acetone
  498. single 4150 fuel feed recomendations
  499. running hard with or without Silent Choice open
  500. This pizzes me off! Who is CP performance trying to kid