View Full Version : General Q & A




  1. Ebay water jacketed headers?
  2. Innovative Wideband A/F system - cable too short
  3. Revolution Marine Oil Reservoir
  4. Oil pressure safety
  5. Winter upgrades, LEDs, underwater lights, etc
  6. got the itch for a top gun , any interest out there for my previous fountain build ..
  7. My quest for 60 MPH
  8. Stock power to Ilmor swap
  9. Outboard motor question
  10. Merc Racing 575 SCI running very rough/rich
  11. Kaama Question?
  12. Winterizing Question- Looking for Ideas
  13. Fuel stabablizer
  14. Fuel Filter
  15. 1988 Merc 420's
  16. Gas Ssteam Out Of Whipple Chargers
  17. Gauges Cycle/Sweep
  18. piston coatings
  19. merc twins 496HO will not exceed 2800
  20. Merlin heads
  21. Valve Springs & Rocker Arms - 525EFI's ???
  22. Exhaust Replacement ?
  23. Can we change our S/N
  24. Max safe RPM?
  25. changing throttle shifter configeration on Gaffrig
  26. What's a 502 block worth
  27. Gen 3 Cool Fuel Winterization?
  28. 496 ecm
  29. Found external leak on manifold - crack
  30. milkshake under stbd valve cover, hi water temp on the port side of the block.
  31. Looking for a Twin Disk mechanic
  32. sonic prowler 496HO PCM PROBELM??
  33. Machine shop in SouthEast Michigan
  34. Can I start the engines on the hose with the drives off?
  35. Hawk 525sc's
  36. Secondary idle screw adjustment on quick fuel 1050?
  37. Gen6 cylinder bore question max bore?
  38. 525 rebuilds with 250 hours
  39. Another bad motor
  40. Stainless marine gen 3 gaskets
  41. Power steering fluid tempature.
  42. Why do larger roots blowers use 2 carbs?
  43. Oil temp problem in my 572, need input/advice....
  44. Finally got a new tow rig! (any other 8.1 owners out there?)
  45. Need Boat Mechanic / Engine Builder in Palm Beach Area
  46. Smartcraft and gauges ?
  47. 598 build questions
  48. Profile picture
  49. Timing a custom supercharged engine
  50. gas tank
  51. Smoked 502 tonite
  52. Bbc with v6 module??
  53. Phenomenal experinece with MarineEngine.com
  54. Need engine advice N A 598 cubic inch rebuild
  55. 700 sci - over heat at high rpm only
  56. Twin Turbo Build
  57. Water Press. location
  58. Exhaust manifold differences 502 vs 525 efi
  59. Another Engine Dynoed today.
  60. WTF Did I Just Do. Considering a Formula 400 SS
  61. 33 Baja outlaw vs 32 fountain fever
  62. SBC Built, now looking for jet recommendations
  63. 502efi
  64. 525EFI Warm start problem - ??
  65. 29 fever triple digits
  66. Who makes the Black Thunder?
  67. Little help if possible
  68. Remote oil filter mounting heigth?
  69. Vibration above 4200
  70. Bravo1 drive goes down, but won't go up.
  71. What muffler / silence are these?
  72. big cubic inch chevy?s
  73. Sea Water Pump Pulley?
  74. 502 EFI, spark coming out of the coil, no spark at the spark plugs
  75. Thunderbolt IV sensors
  76. Twin engine boat porposing problem
  77. New Merc 540 replacement engine
  78. Inexpensive 454 mag performance up grades
  79. 500 efi upgrades
  80. Bennett trim tabs
  81. What problems to look for on Merc 700's
  82. Need some help with engine replacement
  83. Cam guru's please read
  84. Question On Coated Pistons
  85. big block chevy correct spark plugs
  86. Bbc valve cover question-hardin extreme
  87. Bravo upper internal plug?
  88. 502 HO Mag questions
  89. Mercury Outboard Mechanic
  90. Recurring gauge problem - 525EFI
  91. Stroker fuel injection
  92. Wet Exhaust to Dry Exhaust
  93. Windshield for a 2003 HTM 24ss???
  94. Mefi 1 to mefi 3 question
  95. The Blower Shop Intercoolers WTF!!!
  96. single SSM 6 drive height? Or who to call?
  97. Weird 525EFI Question
  98. Gimbal housing help needed
  99. 502 Merc parts ID
  100. Trim Tab Advice??
  101. merc mefi 3 question
  102. Transom that was mounted with an X drive mounting a Bravo 1 question
  103. 496 HO 152 IAC Output Code
  104. who do i contact to fix my username to post a classified ad
  105. 1997 502 EFI cranks but won't start, will try and run after shot of starter fluid
  106. Fuel System Fittings
  107. 377 flywheel
  108. 496 HO maintenance while replacing transom assembly
  109. What are they worth?
  110. Vibration on down trim
  111. Where to purchase oil coolers and hardware
  112. 525efi rev limiter
  113. prop changes from 1.5 to 1.36
  114. 1999 Merc 454 mag ign issues
  115. motors bogging ? fuel pressure maybe?
  116. Engine Quest/RHS 320 Iron heads
  117. Starving for fuel...
  118. Can These Be Repaired ????
  119. QUICKSILVER SBC long block assembly worth building?
  120. I need to find a good shop in the Gulf Shores, Al or Pensacola, Fl area
  121. Aluminum Head Exchange to Steel Head
  122. Prop shaft carrier bearing stuck
  123. Aluminum Head Repair
  124. how hard is it to mefi tune my own after i install procharger
  125. 5 blade on 2004 288 sunsation
  126. Value Of a 91 Mark IV 502 Mag
  127. dry exhaust
  128. Volvo Penta 7.4 Gi vs GSi rev limiter
  129. tall deck to short deck exhaust problems
  130. Opening a can of worms
  131. merc xr gear pinion
  132. Trying to identify a pair of Mercury OB's
  133. Front Seal Unazzed
  134. 1998 Mercury 250 EFI
  135. 496 with whipple worth
  136. 350 mpi possable reversion
  137. Carbed 502/502HP fueling issues on 1996 Baja 272 Islander
  138. 502 magnum mpi IAC crossover
  139. Wrong oil?
  140. 454 Baja overheating
  141. Anyone know how too get ahold of mr gadgets?????
  142. Felpro 17042 vs 17046
  143. Roots Supercharger experts Snout problems
  144. 500efi - starter burned up + more - Help!
  145. Fuel supply issues
  146. Checkmate 251 Convincor vs Profile 26
  147. 1989 Power Play Conquest Decals
  148. Latham Steering Leak
  149. 502 EFI shutting down after 5 seconds of run time
  150. Part numbers question
  151. Volvo Duo prop
  152. Hp 500 carb setup help
  153. One exhaust is only shooting out water
  154. HP500 boost question
  155. Help 502 EFI stalls out
  156. 1996 HP 500 Carb lifter part numbers
  157. Removing CATs on new 8.2L motor
  158. Low oil pressure and Oil cooler questions
  159. Ram air
  160. Mayfair Hydraulic Steering Ram Rebuild help.
  161. 2001 555 PCM to mefi 3
  162. motor not hitting WOT?
  163. Need help with engine issue
  164. Knock came and knock left
  165. Paging skater Scott 36
  166. Mercruiser 496 ho overspeed code
  167. Raymarine DVD
  168. A little roots blower info.
  169. Can you please direct me to some Velvet Drive Identification information.
  170. Are my 454's magnum's??
  171. which fuel transfer pump to use ?
  172. 500 efi fuel fouling plugs
  173. 525EFI Header Failures - CMI vs Hardin - All failing
  174. Mercruiser Computer Programming
  175. 525 EFI sea pump stops pumping
  176. Fuel Pressure
  177. Should I scrap my anti-spam valves?
  178. 088 heads on gen 5 454 ?
  179. Trim and Tilt Pumps, why is one so much faster??
  180. what is killing my fuel pumps?
  181. SBC to BBC Conversion Questions
  182. Bilge pump in Fountain left running dry- are they toast?
  183. solenoid or trim pump bad?
  184. Gaffrig controls neutral safety switch
  185. 600SCI Gurus Needed -- No BOOST
  186. 088 Heads Max lift?
  187. adding 174 blower
  188. 502 Mag Removal
  189. 525 Header issue; I'm stumped..
  190. Top speed and cruise speed and gearing advice new to forum
  191. Pump for toilette and post-swim hotwash
  192. What Size Carb.
  193. Anybody use these boat dollies?
  194. Looking for advice
  195. SSM V alignment tool
  196. Starboard motor won't start - electrical, fuel?
  197. Mirage won't plane off
  198. Can anyone help identify this boat, and help provide feedback on possible purchase.
  199. 500 EFI Fuel Line longevity
  200. Cigarette 20 Update
  201. Fuel feed issues
  202. Time to replace fuel lines?
  203. Misfiring carb 502
  204. How much does Deck weigh on a Formula 302 SR1. I want to lift it to access stringers
  205. 525 EFI Alarm
  206. Noise when shifting
  207. 525 EFI H2O pressure?
  208. oil temp
  209. Merc 5.7 2bbl 1998 unique concerns.
  210. Replacing dipstick tube in 454
  211. Oil pressure problems!
  212. 454 to 502 repower suggestions
  213. PBM/Erson rods and cranks, comparable??
  214. 500efi overheating hot port header, help
  215. jet size
  216. Motor question for the Guru's...
  217. HP 500 carb fuel mech pumps
  218. Intake to head sealing issue question
  219. Collapsed lifter, bent pushrod
  220. anyone make hinge pin covers?
  221. Value 26 Prowler
  222. Ride quality older 38's which ones to look at
  223. need HEI DUI distributor info
  224. Hardin Marine - Hurricane Lite 525 Headers -- who's got 'em??
  225. solid or rubber prop hub???
  226. 525sc conversion
  227. 7.4 freshwater cooling
  228. Lower than I like Oil Pressure
  229. marine a/c units
  230. aftermarket mechanical fuel pump
  231. need help with code 42 on V6
  232. O2 guage
  233. Bravo 1 Vibration in forward drive not reverse??
  234. Dual trim pumps, one switch?
  235. Remote trim switches
  236. Reading Starts Me Thinking - More Power
  237. Water in fuel lean condition.
  238. Low oil pressure in brand new 502 efi
  239. Serpentine crossover kit
  240. power gone from my 8.2 mercuiser
  241. Moisture in valve covers with oil thermostat?
  242. Power steering leak
  243. 500HP carb- synthetic oil?
  244. oil spray from the front of a new 502 motor custom built
  245. Intake ?
  246. Swain Tech PC-9 Piston Skirt Coating
  247. 81 Formula, both alternators do not work?
  248. Water pump shaft seal
  249. Oil filled bilge - need advise please !
  250. how do you align an engine?
  251. efi vr carb
  252. Easiest way - converting 502 to EFI
  253. 502 mpi no inj. pulse on 1/2 the inj ?
  254. Fuel Injector Replace/Repair 805225A1
  255. Switch standard Bravo 1 to XR?
  256. has anyone ever powder coated blower pulleys
  257. PCM 555 codes
  258. 496 Mag HO front motor mount options?
  259. Camshaft sensor for 2001 496
  260. Murcury Racing HP500
  261. Old School HP500 water pump blown gasket (NOT SEA PUMP)
  262. Fuel tank level sender for formula needed
  263. Quietest thru transom exhaust setup
  264. Oil pressure gauge?
  265. Sloppy steering on bravo want to add hydraulic steering
  266. Which brand do you like?
  267. Merc 5.7 - 260hp
  268. Rapid beeping?
  269. Nordskog sending units?
  270. Autometer Gauge Connections
  271. prop slip?
  272. 781 heads best mods
  273. 38 Fountain fever wind deflecter /where to get one?
  274. How to tell the diffrence between a bravo 1 and 2
  275. any holley TBI experts here?
  276. Cam question
  277. Stupid cam shaft idea? Serious question
  278. Jetting starting point?
  279. drive position indicator - cable type
  280. gen 4 gen 5 question
  281. 1986 Wellcraft Nova III opinions please
  282. Oil sending unit and -----?
  283. 781 bbc heads from auto?
  284. Voltage regulator?
  285. 502 Mag Mpi Issue
  286. Measuring Compression Ratio
  287. Any good internet dynos??
  288. Raylar 496 HO upgrades
  289. 502 500hp efi sumble /stall
  290. Good oil pressure sending unit
  291. Stock 330 fuel pump question
  292. Long or short risers needed for this cam?
  293. Mark IV 502 Mag Hole In Piston And No Oil Pressure Help!
  294. 1000 Islands Poker Run Who is going?
  295. I need 1 set of Stainless Marine Exhaust for a SBC. Who's got the best price?
  296. Sea water/fuel pump questions. Leaking oil.
  297. PowerQuset Interior Lights - HELP NEEDED
  298. Could backfiring cause this?
  299. 454 Cam selection down sizing?
  300. if i had water in bravo one fluid...
  301. csm with vinylester
  302. Mercury efi to holley efi. How to get the correct throttle throw.
  303. electric circulating pump??
  304. Iac for 97 454 mag MPI's part number anyone know.
  305. Q-jet jetting help please
  306. Exhaust Riser gasket?
  307. guys I need help please 496 ho surges almost dies...
  308. Helm joint replacement?
  309. Any A/C techs on Long Island?
  310. EMI Thunder Exhaust On Stock 6.2s
  311. Serpentine to v-belt
  312. Strange MPI problem....
  313. 525efi milk shake
  314. 350 mag miss HELP please
  315. engine fault code?
  316. What thermostat housing for closed cooling system??
  317. blowers
  318. Hard steering at speed..
  319. 502 mpi mods......
  320. Fuel Delivery Issues
  321. Need part # for seal on water pump.
  322. Another newbie prop question
  323. 1997 sv24 challenger boat
  324. MSD Distributor
  325. Help! Merc s/c seals & bushings
  326. Posting pictures with an I Pad
  327. Gen5 to gen 6 have had nothing but problems
  328. Need Torque specs for top two bolts on gimble
  329. 280 Tabs to 380 tabs
  330. Marine Machine Hardware
  331. Small water leak on a XR Drive
  332. Black hose water drain system 496 HO
  333. Solid Roller Cam Worth it??
  334. Weak Starting - Ground?
  335. HELP!! 1996 Baja 302 windshield broken!
  336. circulation pump failure???
  337. How much hp will this build produce
  338. Power steering not working replaced parts...?
  339. Motors marked "BRE 168" any ideas?
  340. square k planes
  341. Simple oil cooler upgrade
  342. Prob and drive height suggestions for Donzi 25zx w 625hp
  343. vacuum pump, blown big block
  344. Merc 502 efi code 23 iat censor
  345. 500 efi exhaust issues
  346. Aluminum Intake manifold + salt brackish water
  347. Mercruiser Automatic Transmission
  348. Where's oil thermostat on merc 525 please
  349. What's considered too much oil pressure?
  350. Melting exhaust boots but engine not running over 180!?!?
  351. milkshake clean up
  352. Spark Plug Gap
  353. Benefits of quad rotor
  354. Any Fast 22ft Stingrays maxims out there??
  355. Distributor housing oil boss
  356. Building a new trailer for a 87 Midnight express 37'. Need help!
  357. Cast crankshaft OK?
  358. Reversion possibility question on SBC with XM270HR cam
  359. Riser gaskets...which one?
  360. 502 MPI w/cool fuel return line fuel flow
  361. Best way to clean the outside of an engine covered in oil?
  362. Replacing MEFI1 with ?
  363. Mystery Piece of Stainless in my Exhaust Tip - please help identify
  364. 8.1 oil bypass valve
  365. Stainless vs brass sea pump
  366. Longevity MIG welder
  367. crane 741 cam and stock roller lifters
  368. 502 fuel injected spudders and dies randomly
  369. Mercrusier 350mag w/Bravo 1
  370. Silent Choice Exhaust not opening.
  371. 500 EFI Powersteering pump defect ???
  372. Pressure test headers question
  373. Trim Tab screws ...kinda came out ....?
  374. Cam recommendations for these heads?
  375. 525 vs 496HO
  376. 454 EFI making a sqealing sound
  377. Mini Starter
  378. Fuel level in cool fuel module 496 HO
  379. 38 Fountain Lightning Worth It or Not ?
  380. EGT ranges procharged carb 555
  381. Hydraulic Ram...Who makes this?
  382. Bad powersteering pump?
  383. Liquid filled water pressure gauge problem
  384. 496 HO in-line fuel filter
  385. Using A MSD Box With Stock Merc Distributor
  386. Engine cover help
  387. Engine trouble shooting help needed.
  388. Any feedback on Venture aluminum trailers? specifically the tandem 5k axle 8725
  389. crank choices
  390. What do you clean your boat with?
  391. Installing water pressure gauge
  392. Oil cooler suggestions for 468 bbc
  393. Value of a mark iv standard 454
  394. Billet serpentine pulley 502 MPI
  395. Mercury Zero Effort Throttle Wiring
  396. Power Steering issues
  397. Choosing an oil pump
  398. Screws for exhaust tips?
  399. Looking for an engine builder in South Florida...Who do you know?
  400. OX66 Outboard gages to Gaffrig
  401. 454 Mag MPI not revving.
  402. Heat issues help.
  403. Old merc 90 outboard question
  404. Replacement iron heads for Edelbrock RPM performer
  405. Trim Tab Cable Help
  406. Mercruiser 6.2 Upgrades
  407. 704ci Motor Help
  408. 137-9400 mayfair steering
  409. Carb help
  410. Heavy duty shift cable??
  411. Motor Shut Down Filter/Pump/Other
  412. intermittent nav lights and fuel gauge problem?
  413. Baja 260 with 454.... Has mufflers and would like to remove them.....
  414. Gen IV 502 No Oil Pressure..... Help
  415. Timing question..502..
  416. 525 SC fuel problems
  417. hesitation, intermittent backfire etc
  418. When will thes 525s require work?
  419. Running hot according to the gauge.....454
  420. Prop slip calculator
  421. wiring help
  422. Need VDO Temp Sender
  423. New engine in Formula, more problems then a math book!
  424. 502 mpi v-belts part numbers..
  425. TRS transmission problems
  426. Impeller problems
  427. 496 mag help
  428. Size of harmonic balancer pulley bbc?
  429. How fast is an 88 scarab 1 with an efi 502????
  430. Mercruiser 5.7 efi fuel pressure kit from Autozone
  431. 502 mag MPI starts then stalls after replacing cap, rotor, wires and exhaust!
  432. Just got a noise ticket tonight - need options
  433. Broken dip stick tube on my 260 Merc
  434. 454 oil burn... questions on what to check first
  435. Throttle / Shift Controller - Sea Star or Mercruiser
  436. Thru hull tip internal flapper broke
  437. 496 8.1 Timing cover and gear question
  438. LED Gauge Upgrade
  439. 29' baja is shift cable longer with an imco extension box on the drive
  440. ignition troubleshooting ??? help please
  441. External voltage regulator wiring question
  442. 525sc upgrades for more hp
  443. HP 500 intake grommet??
  444. water in oil on fresh rebuilt 468 with m1 procharger intercooled.
  445. power steering pump question..
  446. 502 Catastrophic Failure!!! Why does this happen?
  447. trs to speedmaster
  448. Screw in fuel sending unit
  449. 496HO manifold over heating
  450. K-Planes Bolt Length
  451. Leakdown Test vs Compression Test? Help with a used boat.
  452. Circulating Pumps on 600sc (Convert to X-Overs)
  453. A/C questions
  454. 525 EFI Oil Pressure to High at Idle
  455. Rough idle?
  456. Fuel pump and delivery
  457. Hairline crackin one blade of stainless four blade prop
  458. power steering only works at speed
  459. 1 merc. 700 keeps vaporlocking
  460. New Mallory Ignition, no spark
  461. best replacement trim tab cables for merc k=planes?
  462. 32 fever with small blocks
  463. Feather throttle to keep running until reaching operating temp
  464. Air Fuel ratio
  465. How much HP? on my 454
  466. Comzilla intercoms
  467. Part # for 500 EFI impeller
  468. If you had a choice which one
  469. 1998 Mercury 250 EFI Factory Shop Manual
  470. B&M Blowers 174 type. timing issue?
  471. help! info on powerquest
  472. manifolds length
  473. Dumping cooling water, lightning headers.
  474. silent choice, issue or something else
  475. I.M.P Viper 310 help
  476. Formula 233
  477. I think I stuck a valve
  478. plug gap
  479. Question about GMPP 502ho crate engine.
  480. Shop Labor times to Pull a motor
  481. Hyd steering hose??
  482. 525 Oil Temp Sensor
  483. Carburetor Help
  484. Mefi 3 ??
  485. 502 dies at wot
  486. Help Please!!!! 88 Four Winns Liberator 211 is SLOW!!
  487. Oil Temp Issues
  488. Another 525 Header Issue
  489. 496HO: would IAC cause this? 1 engine lagging intermittently lagging 100-400 RPM
  490. 525sc idling at 180* rising to 210*
  491. New GM 502 Vibration above 1500 RPM
  492. Whats TO HOT FOR OIL TEMP
  493. Right thrust washer? Hub?
  494. Firepower control box
  495. Gen 4, 5 and 6 GM heads same plug reach?
  496. over cam'd motor or pump problem?
  497. Need help with Kohler 5ECD Generator...
  498. Russel Performance AN swivel fitting leaking
  499. Mercruiser BBC front engine mounts 79550
  500. A/c unit help