View Full Version : General Q & A




  1. 496 HO 152 IAC Output Code
  2. who do i contact to fix my username to post a classified ad
  3. 1997 502 EFI cranks but won't start, will try and run after shot of starter fluid
  4. Fuel System Fittings
  5. 377 flywheel
  6. 496 HO maintenance while replacing transom assembly
  7. What are they worth?
  8. Vibration on down trim
  9. Where to purchase oil coolers and hardware
  10. 525efi rev limiter
  11. prop changes from 1.5 to 1.36
  12. 1999 Merc 454 mag ign issues
  13. motors bogging ? fuel pressure maybe?
  14. Engine Quest/RHS 320 Iron heads
  15. Starving for fuel...
  16. Can These Be Repaired ????
  17. QUICKSILVER SBC long block assembly worth building?
  18. I need to find a good shop in the Gulf Shores, Al or Pensacola, Fl area
  19. Aluminum Head Exchange to Steel Head
  20. Prop shaft carrier bearing stuck
  21. Aluminum Head Repair
  22. how hard is it to mefi tune my own after i install procharger
  23. 5 blade on 2004 288 sunsation
  24. Value Of a 91 Mark IV 502 Mag
  25. dry exhaust
  26. Volvo Penta 7.4 Gi vs GSi rev limiter
  27. tall deck to short deck exhaust problems
  28. Opening a can of worms
  29. merc xr gear pinion
  30. Trying to identify a pair of Mercury OB's
  31. Front Seal Unazzed
  32. 1998 Mercury 250 EFI
  33. 496 with whipple worth
  34. 350 mpi possable reversion
  35. Carbed 502/502HP fueling issues on 1996 Baja 272 Islander
  36. 502 magnum mpi IAC crossover
  37. Wrong oil?
  38. 454 Baja overheating
  39. Anyone know how too get ahold of mr gadgets?????
  40. Felpro 17042 vs 17046
  41. Roots Supercharger experts Snout problems
  42. 500efi - starter burned up + more - Help!
  43. Fuel supply issues
  44. Checkmate 251 Convincor vs Profile 26
  45. 1989 Power Play Conquest Decals
  46. Latham Steering Leak
  47. 502 EFI shutting down after 5 seconds of run time
  48. Part numbers question
  49. Volvo Duo prop
  50. Hp 500 carb setup help
  51. One exhaust is only shooting out water
  52. HP500 boost question
  53. Help 502 EFI stalls out
  54. 1996 HP 500 Carb lifter part numbers
  55. Removing CATs on new 8.2L motor
  56. Low oil pressure and Oil cooler questions
  57. Ram air
  58. Mayfair Hydraulic Steering Ram Rebuild help.
  59. 2001 555 PCM to mefi 3
  60. motor not hitting WOT?
  61. Need help with engine issue
  62. Knock came and knock left
  63. Paging skater Scott 36
  64. Mercruiser 496 ho overspeed code
  65. Raymarine DVD
  66. A little roots blower info.
  67. Can you please direct me to some Velvet Drive Identification information.
  68. Are my 454's magnum's??
  69. which fuel transfer pump to use ?
  70. 500 efi fuel fouling plugs
  71. 525EFI Header Failures - CMI vs Hardin - All failing
  72. Mercruiser Computer Programming
  73. 525 EFI sea pump stops pumping
  74. Fuel Pressure
  75. Should I scrap my anti-spam valves?
  76. 088 heads on gen 5 454 ?
  77. Trim and Tilt Pumps, why is one so much faster??
  78. what is killing my fuel pumps?
  79. SBC to BBC Conversion Questions
  80. Bilge pump in Fountain left running dry- are they toast?
  81. solenoid or trim pump bad?
  82. Gaffrig controls neutral safety switch
  83. 600SCI Gurus Needed -- No BOOST
  84. 088 Heads Max lift?
  85. adding 174 blower
  86. 502 Mag Removal
  87. 525 Header issue; I'm stumped..
  88. Top speed and cruise speed and gearing advice new to forum
  89. Pump for toilette and post-swim hotwash
  90. What Size Carb.
  91. Anybody use these boat dollies?
  92. Looking for advice
  93. SSM V alignment tool
  94. Starboard motor won't start - electrical, fuel?
  95. Mirage won't plane off
  96. Can anyone help identify this boat, and help provide feedback on possible purchase.
  97. 500 EFI Fuel Line longevity
  98. Cigarette 20 Update
  99. Fuel feed issues
  100. Time to replace fuel lines?
  101. Misfiring carb 502
  102. How much does Deck weigh on a Formula 302 SR1. I want to lift it to access stringers
  103. 525 EFI Alarm
  104. Noise when shifting
  105. 525 EFI H2O pressure?
  106. oil temp
  107. Merc 5.7 2bbl 1998 unique concerns.
  108. Replacing dipstick tube in 454
  109. Oil pressure problems!
  110. 454 to 502 repower suggestions
  111. PBM/Erson rods and cranks, comparable??
  112. 500efi overheating hot port header, help
  113. jet size
  114. Motor question for the Guru's...
  115. HP 500 carb fuel mech pumps
  116. Intake to head sealing issue question
  117. Collapsed lifter, bent pushrod
  118. anyone make hinge pin covers?
  119. Value 26 Prowler
  120. Ride quality older 38's which ones to look at
  121. need HEI DUI distributor info
  122. Hardin Marine - Hurricane Lite 525 Headers -- who's got 'em??
  123. solid or rubber prop hub???
  124. 525sc conversion
  125. 7.4 freshwater cooling
  126. Lower than I like Oil Pressure
  127. marine a/c units
  128. aftermarket mechanical fuel pump
  129. need help with code 42 on V6
  130. O2 guage
  131. Bravo 1 Vibration in forward drive not reverse??
  132. Dual trim pumps, one switch?
  133. Remote trim switches
  134. Reading Starts Me Thinking - More Power
  135. Water in fuel lean condition.
  136. Low oil pressure in brand new 502 efi
  137. Serpentine crossover kit
  138. power gone from my 8.2 mercuiser
  139. Moisture in valve covers with oil thermostat?
  140. Power steering leak
  141. 500HP carb- synthetic oil?
  142. oil spray from the front of a new 502 motor custom built
  143. Intake ?
  144. Swain Tech PC-9 Piston Skirt Coating
  145. 81 Formula, both alternators do not work?
  146. Water pump shaft seal
  147. Oil filled bilge - need advise please !
  148. how do you align an engine?
  149. efi vr carb
  150. Easiest way - converting 502 to EFI
  151. 502 mpi no inj. pulse on 1/2 the inj ?
  152. Fuel Injector Replace/Repair 805225A1
  153. Switch standard Bravo 1 to XR?
  154. has anyone ever powder coated blower pulleys
  155. PCM 555 codes
  156. 496 Mag HO front motor mount options?
  157. Camshaft sensor for 2001 496
  158. Murcury Racing HP500
  159. Old School HP500 water pump blown gasket (NOT SEA PUMP)
  160. Fuel tank level sender for formula needed
  161. Quietest thru transom exhaust setup
  162. Oil pressure gauge?
  163. Sloppy steering on bravo want to add hydraulic steering
  164. Which brand do you like?
  165. Merc 5.7 - 260hp
  166. Rapid beeping?
  167. Nordskog sending units?
  168. Autometer Gauge Connections
  169. prop slip?
  170. 781 heads best mods
  171. 38 Fountain fever wind deflecter /where to get one?
  172. How to tell the diffrence between a bravo 1 and 2
  173. any holley TBI experts here?
  174. Cam question
  175. Stupid cam shaft idea? Serious question
  176. Jetting starting point?
  177. drive position indicator - cable type
  178. gen 4 gen 5 question
  179. 1986 Wellcraft Nova III opinions please
  180. Oil sending unit and -----?
  181. 781 bbc heads from auto?
  182. Voltage regulator?
  183. 502 Mag Mpi Issue
  184. Measuring Compression Ratio
  185. Any good internet dynos??
  186. Raylar 496 HO upgrades
  187. 502 500hp efi sumble /stall
  188. Good oil pressure sending unit
  189. Stock 330 fuel pump question
  190. Long or short risers needed for this cam?
  191. Mark IV 502 Mag Hole In Piston And No Oil Pressure Help!
  192. 1000 Islands Poker Run Who is going?
  193. I need 1 set of Stainless Marine Exhaust for a SBC. Who's got the best price?
  194. Sea water/fuel pump questions. Leaking oil.
  195. PowerQuset Interior Lights - HELP NEEDED
  196. Could backfiring cause this?
  197. 454 Cam selection down sizing?
  198. if i had water in bravo one fluid...
  199. csm with vinylester
  200. Mercury efi to holley efi. How to get the correct throttle throw.
  201. electric circulating pump??
  202. Iac for 97 454 mag MPI's part number anyone know.
  203. Q-jet jetting help please
  204. Exhaust Riser gasket?
  205. guys I need help please 496 ho surges almost dies...
  206. Helm joint replacement?
  207. Any A/C techs on Long Island?
  208. EMI Thunder Exhaust On Stock 6.2s
  209. Serpentine to v-belt
  210. Strange MPI problem....
  211. 525efi milk shake
  212. 350 mag miss HELP please
  213. engine fault code?
  214. What thermostat housing for closed cooling system??
  215. blowers
  216. Hard steering at speed..
  217. 502 mpi mods......
  218. Fuel Delivery Issues
  219. Need part # for seal on water pump.
  220. Another newbie prop question
  221. 1997 sv24 challenger boat
  222. MSD Distributor
  223. Help! Merc s/c seals & bushings
  224. Posting pictures with an I Pad
  225. Gen5 to gen 6 have had nothing but problems
  226. Need Torque specs for top two bolts on gimble
  227. 280 Tabs to 380 tabs
  228. Marine Machine Hardware
  229. Small water leak on a XR Drive
  230. Black hose water drain system 496 HO
  231. Solid Roller Cam Worth it??
  232. Weak Starting - Ground?
  233. HELP!! 1996 Baja 302 windshield broken!
  234. circulation pump failure???
  235. How much hp will this build produce
  236. Power steering not working replaced parts...?
  237. Motors marked "BRE 168" any ideas?
  238. square k planes
  239. Simple oil cooler upgrade
  240. Prob and drive height suggestions for Donzi 25zx w 625hp
  241. vacuum pump, blown big block
  242. Merc 502 efi code 23 iat censor
  243. 500 efi exhaust issues
  244. Aluminum Intake manifold + salt brackish water
  245. Mercruiser Automatic Transmission
  246. Where's oil thermostat on merc 525 please
  247. What's considered too much oil pressure?
  248. Melting exhaust boots but engine not running over 180!?!?
  249. milkshake clean up
  250. Spark Plug Gap
  251. Benefits of quad rotor
  252. Any Fast 22ft Stingrays maxims out there??
  253. Distributor housing oil boss
  254. Building a new trailer for a 87 Midnight express 37'. Need help!
  255. Cast crankshaft OK?
  256. Reversion possibility question on SBC with XM270HR cam
  257. Riser gaskets...which one?
  258. 502 MPI w/cool fuel return line fuel flow
  259. Best way to clean the outside of an engine covered in oil?
  260. Replacing MEFI1 with ?
  261. Mystery Piece of Stainless in my Exhaust Tip - please help identify
  262. 8.1 oil bypass valve
  263. Stainless vs brass sea pump
  264. Longevity MIG welder
  265. crane 741 cam and stock roller lifters
  266. 502 fuel injected spudders and dies randomly
  267. Mercrusier 350mag w/Bravo 1
  268. Silent Choice Exhaust not opening.
  269. 500 EFI Powersteering pump defect ???
  270. Pressure test headers question
  271. Trim Tab screws ...kinda came out ....?
  272. Cam recommendations for these heads?
  273. 525 vs 496HO
  274. 454 EFI making a sqealing sound
  275. Mini Starter
  276. Fuel level in cool fuel module 496 HO
  277. 38 Fountain Lightning Worth It or Not ?
  278. EGT ranges procharged carb 555
  279. Hydraulic Ram...Who makes this?
  280. Bad powersteering pump?
  281. Liquid filled water pressure gauge problem
  282. 496 HO in-line fuel filter
  283. Using A MSD Box With Stock Merc Distributor
  284. Engine cover help
  285. Engine trouble shooting help needed.
  286. Any feedback on Venture aluminum trailers? specifically the tandem 5k axle 8725
  287. crank choices
  288. What do you clean your boat with?
  289. Installing water pressure gauge
  290. Oil cooler suggestions for 468 bbc
  291. Value of a mark iv standard 454
  292. Billet serpentine pulley 502 MPI
  293. Mercury Zero Effort Throttle Wiring
  294. Power Steering issues
  295. Choosing an oil pump
  296. Screws for exhaust tips?
  297. Looking for an engine builder in South Florida...Who do you know?
  298. OX66 Outboard gages to Gaffrig
  299. 454 Mag MPI not revving.
  300. Heat issues help.
  301. Old merc 90 outboard question
  302. Replacement iron heads for Edelbrock RPM performer
  303. Trim Tab Cable Help
  304. Mercruiser 6.2 Upgrades
  305. 704ci Motor Help
  306. 137-9400 mayfair steering
  307. Carb help
  308. Heavy duty shift cable??
  309. Motor Shut Down Filter/Pump/Other
  310. intermittent nav lights and fuel gauge problem?
  311. Baja 260 with 454.... Has mufflers and would like to remove them.....
  312. Gen IV 502 No Oil Pressure..... Help
  313. Timing question..502..
  314. 525 SC fuel problems
  315. hesitation, intermittent backfire etc
  316. When will thes 525s require work?
  317. Running hot according to the gauge.....454
  318. Prop slip calculator
  319. wiring help
  320. Need VDO Temp Sender
  321. New engine in Formula, more problems then a math book!
  322. 502 mpi v-belts part numbers..
  323. TRS transmission problems
  324. Impeller problems
  325. 496 mag help
  326. Size of harmonic balancer pulley bbc?
  327. How fast is an 88 scarab 1 with an efi 502????
  328. Mercruiser 5.7 efi fuel pressure kit from Autozone
  329. 502 mag MPI starts then stalls after replacing cap, rotor, wires and exhaust!
  330. Just got a noise ticket tonight - need options
  331. Broken dip stick tube on my 260 Merc
  332. 454 oil burn... questions on what to check first
  333. Throttle / Shift Controller - Sea Star or Mercruiser
  334. Thru hull tip internal flapper broke
  335. 496 8.1 Timing cover and gear question
  336. LED Gauge Upgrade
  337. 29' baja is shift cable longer with an imco extension box on the drive
  338. ignition troubleshooting ??? help please
  339. External voltage regulator wiring question
  340. 525sc upgrades for more hp
  341. HP 500 intake grommet??
  342. water in oil on fresh rebuilt 468 with m1 procharger intercooled.
  343. power steering pump question..
  344. 502 Catastrophic Failure!!! Why does this happen?
  345. trs to speedmaster
  346. Screw in fuel sending unit
  347. 496HO manifold over heating
  348. K-Planes Bolt Length
  349. Leakdown Test vs Compression Test? Help with a used boat.
  350. Circulating Pumps on 600sc (Convert to X-Overs)
  351. A/C questions
  352. 525 EFI Oil Pressure to High at Idle
  353. Rough idle?
  354. Fuel pump and delivery
  355. Hairline crackin one blade of stainless four blade prop
  356. power steering only works at speed
  357. 1 merc. 700 keeps vaporlocking
  358. New Mallory Ignition, no spark
  359. best replacement trim tab cables for merc k=planes?
  360. 32 fever with small blocks
  361. Feather throttle to keep running until reaching operating temp
  362. Air Fuel ratio
  363. How much HP? on my 454
  364. Comzilla intercoms
  365. Part # for 500 EFI impeller
  366. If you had a choice which one
  367. 1998 Mercury 250 EFI Factory Shop Manual
  368. B&M Blowers 174 type. timing issue?
  369. help! info on powerquest
  370. manifolds length
  371. Dumping cooling water, lightning headers.
  372. silent choice, issue or something else
  373. I.M.P Viper 310 help
  374. Formula 233
  375. I think I stuck a valve
  376. plug gap
  377. Question about GMPP 502ho crate engine.
  378. Shop Labor times to Pull a motor
  379. Hyd steering hose??
  380. 525 Oil Temp Sensor
  381. Carburetor Help
  382. Mefi 3 ??
  383. 502 dies at wot
  384. Help Please!!!! 88 Four Winns Liberator 211 is SLOW!!
  385. Oil Temp Issues
  386. Another 525 Header Issue
  387. 496HO: would IAC cause this? 1 engine lagging intermittently lagging 100-400 RPM
  388. 525sc idling at 180* rising to 210*
  389. New GM 502 Vibration above 1500 RPM
  390. Whats TO HOT FOR OIL TEMP
  391. Right thrust washer? Hub?
  392. Firepower control box
  393. Gen 4, 5 and 6 GM heads same plug reach?
  394. over cam'd motor or pump problem?
  395. Need help with Kohler 5ECD Generator...
  396. Russel Performance AN swivel fitting leaking
  397. Mercruiser BBC front engine mounts 79550
  398. A/c unit help
  399. 350 mag mpi won't turn off???
  400. is this a sign that the hull was rotten?
  401. 2 Alternators to choose from
  402. blower size help
  403. Replacing stock thermostat housing with Stainless,,,,,
  404. Mercruiser silent choice
  405. How often to clean the air intake 7.4 mpi
  406. Mercruiser Rev Limit Ignition by Firepower
  407. 496 whipple boost
  408. Cigarette 24 info
  409. Led Cockpit lights
  410. Exhaust Problems
  411. Cobra outdrive not pumping water
  412. Trim not moving evenly
  413. 502 water reversion
  414. Ultimate Warlock 24' Euro
  415. Alpha hit something no forward or reverse
  416. FAST Programmable EFI
  417. Oil foaming out of lower unit trim pump reservoir only while trimming lower unit.
  418. Loose/missing exh flapper
  419. Engine won't get boat on plane - ignition issue?
  420. blown 900 ate a distributor gear over the weekend, what now......
  421. Cost to rig a new hull?
  422. Outdrive Control Box
  423. 502 ss trying to get a hold of u bro ??
  424. Morse Controls
  425. Mercruiser Head Gasket Sealing
  426. Why no oil cooler 350 mag MPI
  427. Go Fast needed for a wedding
  428. Noise at Higher RPM's..... Details inside
  429. Rooster tail fittings on Normal drives - What and where?
  430. Removing compass
  431. Another water in oil milkshake thread
  432. Water in motor..need help fast!!
  433. Head Gaskets...head bolts..
  434. Baja 252 motor help
  435. When started, EFI motor will not idle below 3000 rpm
  436. Smart craft trim limit switch
  437. steering question
  438. Serp belt tension
  439. Lubricant for silicone exhaust hose?
  440. Painted boats hull cleaner?
  441. Scratched CMI polished Sport Tubes
  442. corsa solenoids ratling when diverted to prop
  443. wiring questions
  444. timing chain question
  445. transom assembley help
  446. Pondering the thought of doing a LS motor.......
  447. Any wlders in the house?
  448. Junk VST Electric Fuel Pump
  449. Hardin Gen 7 Sea Pump Install
  450. Motion actuator for power bolster seat, I need one from a Fountain or other boat!
  451. New engine ready to fire but WONT! Expierenced techs Please Help!!!
  452. Steering leak at the helm
  453. Boost referencing carbs
  454. recommended manifolds for 540 tall decks 600hp innovation marine
  455. twin engine fuel burn from side to side.
  456. Drain plug adapter
  457. 496 ho
  458. 03 496 ho double beep
  459. Horrible Idle on a holley 800..
  460. Smallbock oil adapter
  461. WTF,, does anyone make a tall life or ski vest for guys 6'-6'+
  462. 900 low oil pressure and cold filter after oil change???
  463. Recommended GPS with depth capabilities ?
  464. more HP for 502 mpi
  465. Lake Texoma Eating
  466. Running rough at low RPM after warmed up
  467. HP500/ BBC short water pump part#
  468. 502 MPI Surging over 4200 RPM
  469. New Oil Coolers? Yes or No?
  470. Gaffrig oil pressure sender
  471. Merc 7.4 Gen V clicking noise
  472. FAST Air Fuel Meter??
  473. RPM Drop in 1 Engine
  474. 12V DC Air Conditioner - Anyone have any experience with them?
  475. 496 with Whipple
  476. Gen IV Heads On Gen V Block Coolant Port ?
  477. Ethanol resistant fuel line?
  478. motor swap, now gauges dont work
  479. flame arrestor
  480. Bore notching 4.310 bore
  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