View Full Version : General Q & A




  1. Fitch Fuel Catalysts
  2. Best place to order Mercury parts from
  3. Need an Anchor
  4. Corvette C-7 LT1 Engine for marine use?
  5. Silent Choice on a 525 EFI 29' Fever
  6. 731 or 741
  7. Oil pump thread
  8. De-tuning my 2001 ilmor supercat 517
  9. Missing skeg(s) and cavitation plate
  10. 502 mag torque #
  11. Is there any product that softens vinyl (interior)? What is the best cleaner?
  12. Drive couplers
  13. boat length?
  14. Blown head gasket and worn wrist pin... rebuild advise?
  15. Wellcraft scarab cv 7.4 v8 engine.
  16. Pressure checking manifold,headers
  17. Flat vs Roller, Blown 454
  18. Can you make a 502 mpi flow more air?
  19. 525 Header/Tailpipe issue
  20. 1" or 2" carb spacer
  21. Dyno proven 675-700 HP 540CI recipes?
  22. Talk to me about closed loop cooling...any reason not to?
  23. Need Help on Heads on Gen 5 454's
  24. Need Help on Heads on Gen 5 454's
  25. Upgrades to stock 350 sbc
  26. Hawk 502 specs
  27. Bearing clearances, oil weight, and more...
  28. Intake Manifold
  29. Fuel Pump and Filter mounting
  30. Hydraulic vs Electric trim tabs
  31. EFI intake
  32. GoPro Cam Choice. . . .
  33. Carb to EFI
  34. Time to rebuild the 502...
  35. Oil restrictor size hp500
  36. 1976 stinger jet boat
  37. Want more hp out if my 502?
  38. How do i get the air out of my K-280's trim tabs?
  39. Has anyone used the new merc digital trim indicators?
  40. Fountain bilge light - bulb ID
  41. How is compression ratio figured?
  42. Who's going to the PRI show next month
  43. IMCO fuel valve instructions please
  44. procharged 502 fuel system
  45. 540CI builds, MAX RPM?
  46. Bravo or Bravo x3
  47. Midrange and low RPM grunt. Discuss please.
  48. 2011 Sea Ray 240 captain seat cylinder adjustment
  49. HELP i have a gremlin onboard
  50. SB Exhaust manifolds
  51. 8' beam into 7'9" garage door
  52. Antifreeze for Winterize Mercury 700's?
  53. Cam Questions - Little Help/Direction needed
  54. single plane intake vs. dual plane
  55. Blue engine maint?
  56. Top end refresh?
  57. Enine Builders?
  58. 388 hustler that was in the classifieds
  59. Looking for some real out of the box thinking....
  60. another milkshake
  61. What size is this
  62. HP 500 valve covers....
  63. Best way to clean old fuel tanks
  64. ss rod ends?
  65. Weiand 177 or 256, which kits?
  66. Step By Step : Building An 871 Blower
  67. Baja 240 sport (24 outlaw) VS 250 (270)es
  68. Where to buy bolster tops?
  69. Fuel pump
  70. How to tell if its an HP gimble ring or not?
  71. Projected or non with blowers?
  72. Smashed Plugs on fresh re-build, any advice?
  73. Does prop slip increase or decrease with speed? Top speed less than expected.
  74. Smartcraft gauge rigging question
  75. What is this plate called and where can I get one?? SsmII
  76. Antifreeze/Magnesium question. (non boating related)
  77. 1999 vortec 454 yes or no
  78. Anyone change an Oil Thermostat in a HP500 Filter housing?
  79. Circulating Pump Size
  80. Using Marine battery in Truck?
  81. motor oils prefered on performance boats
  82. how to remove gas overflow stain side of boat?
  83. Holley fuel pump safety switch 12-810. 2 bad in one year.
  84. Engine Rebuilding
  85. header friendly sub for r44xls
  86. HELP PLEASE....Thoughts on repowering
  87. Roots Blower Sizing
  88. Engine Pre lube systems
  89. boat vapor locked after taking off fuel filter/water seperator
  90. company to handle blower DIS/REassembly and powdercoating?
  91. Gen 6 Heads on a Mk 4 Block
  92. Ebay water jacketed headers?
  93. Innovative Wideband A/F system - cable too short
  94. Revolution Marine Oil Reservoir
  95. Oil pressure safety
  96. Winter upgrades, LEDs, underwater lights, etc
  97. My quest for 60 MPH
  98. Stock power to Ilmor swap
  99. Outboard motor question
  100. Merc Racing 575 SCI running very rough/rich
  101. Kaama Question?
  102. Winterizing Question- Looking for Ideas
  103. Fuel stabablizer
  104. Fuel Filter
  105. 1988 Merc 420's
  106. Gas Ssteam Out Of Whipple Chargers
  107. Gauges Cycle/Sweep
  108. piston coatings
  109. merc twins 496HO will not exceed 2800
  110. Merlin heads
  111. Valve Springs & Rocker Arms - 525EFI's ???
  112. Exhaust Replacement ?
  113. Can we change our S/N
  114. Max safe RPM?
  115. changing throttle shifter configeration on Gaffrig
  116. What's a 502 block worth
  117. Gen 3 Cool Fuel Winterization?
  118. 496 ecm
  119. Found external leak on manifold - crack
  120. milkshake under stbd valve cover, hi water temp on the port side of the block.
  121. Looking for a Twin Disk mechanic
  122. sonic prowler 496HO PCM PROBELM??
  123. Machine shop in SouthEast Michigan
  124. Can I start the engines on the hose with the drives off?
  125. Hawk 525sc's
  126. Secondary idle screw adjustment on quick fuel 1050?
  127. Gen6 cylinder bore question max bore?
  128. 525 rebuilds with 250 hours
  129. Another bad motor
  130. Stainless marine gen 3 gaskets
  131. Power steering fluid tempature.
  132. Why do larger roots blowers use 2 carbs?
  133. Oil temp problem in my 572, need input/advice....
  134. Finally got a new tow rig! (any other 8.1 owners out there?)
  135. Need Boat Mechanic / Engine Builder in Palm Beach Area
  136. Smartcraft and gauges ?
  137. 598 build questions
  138. Profile picture
  139. Timing a custom supercharged engine
  140. gas tank
  141. Smoked 502 tonite
  142. Bbc with v6 module??
  143. Phenomenal experinece with MarineEngine.com
  144. Need engine advice N A 598 cubic inch rebuild
  145. 700 sci - over heat at high rpm only
  146. Twin Turbo Build
  147. Water Press. location
  148. Exhaust manifold differences 502 vs 525 efi
  149. Another Engine Dynoed today.
  150. WTF Did I Just Do. Considering a Formula 400 SS
  151. 33 Baja outlaw vs 32 fountain fever
  152. SBC Built, now looking for jet recommendations
  153. 502efi
  154. 525EFI Warm start problem - ??
  155. 29 fever triple digits
  156. Who makes the Black Thunder?
  157. Little help if possible
  158. Remote oil filter mounting heigth?
  159. Vibration above 4200
  160. Bravo1 drive goes down, but won't go up.
  161. What muffler / silence are these?
  162. big cubic inch chevy?s
  163. Sea Water Pump Pulley?
  164. 502 EFI, spark coming out of the coil, no spark at the spark plugs
  165. Thunderbolt IV sensors
  166. Twin engine boat porposing problem
  167. New Merc 540 replacement engine
  168. Inexpensive 454 mag performance up grades
  169. 500 efi upgrades
  170. Bennett trim tabs
  171. What problems to look for on Merc 700's
  172. Need some help with engine replacement
  173. Cam guru's please read
  174. Question On Coated Pistons
  175. big block chevy correct spark plugs
  176. Bbc valve cover question-hardin extreme
  177. Bravo upper internal plug?
  178. 502 HO Mag questions
  179. Mercury Outboard Mechanic
  180. Recurring gauge problem - 525EFI
  181. Stroker fuel injection
  182. Wet Exhaust to Dry Exhaust
  183. Windshield for a 2003 HTM 24ss???
  184. Mefi 1 to mefi 3 question
  185. The Blower Shop Intercoolers WTF!!!
  186. single SSM 6 drive height? Or who to call?
  187. Weird 525EFI Question
  188. Gimbal housing help needed
  189. 502 Merc parts ID
  190. Trim Tab Advice??
  191. merc mefi 3 question
  192. Transom that was mounted with an X drive mounting a Bravo 1 question
  193. 496 HO 152 IAC Output Code
  194. who do i contact to fix my username to post a classified ad
  195. 1997 502 EFI cranks but won't start, will try and run after shot of starter fluid
  196. Fuel System Fittings
  197. 377 flywheel
  198. 496 HO maintenance while replacing transom assembly
  199. What are they worth?
  200. Vibration on down trim
  201. Where to purchase oil coolers and hardware
  202. 525efi rev limiter
  203. prop changes from 1.5 to 1.36
  204. 1999 Merc 454 mag ign issues
  205. motors bogging ? fuel pressure maybe?
  206. Engine Quest/RHS 320 Iron heads
  207. Starving for fuel...
  208. Can These Be Repaired ????
  209. QUICKSILVER SBC long block assembly worth building?
  210. I need to find a good shop in the Gulf Shores, Al or Pensacola, Fl area
  211. Aluminum Head Exchange to Steel Head
  212. Prop shaft carrier bearing stuck
  213. Aluminum Head Repair
  214. how hard is it to mefi tune my own after i install procharger
  215. 5 blade on 2004 288 sunsation
  216. Value Of a 91 Mark IV 502 Mag
  217. dry exhaust
  218. Volvo Penta 7.4 Gi vs GSi rev limiter
  219. tall deck to short deck exhaust problems
  220. Opening a can of worms
  221. merc xr gear pinion
  222. Trying to identify a pair of Mercury OB's
  223. Front Seal Unazzed
  224. 1998 Mercury 250 EFI
  225. 496 with whipple worth
  226. 350 mpi possable reversion
  227. Carbed 502/502HP fueling issues on 1996 Baja 272 Islander
  228. 502 magnum mpi IAC crossover
  229. Wrong oil?
  230. 454 Baja overheating
  231. Anyone know how too get ahold of mr gadgets?????
  232. Felpro 17042 vs 17046
  233. Roots Supercharger experts Snout problems
  234. 500efi - starter burned up + more - Help!
  235. Fuel supply issues
  236. Checkmate 251 Convincor vs Profile 26
  237. 1989 Power Play Conquest Decals
  238. Latham Steering Leak
  239. 502 EFI shutting down after 5 seconds of run time
  240. Part numbers question
  241. Volvo Duo prop
  242. Hp 500 carb setup help
  243. One exhaust is only shooting out water
  244. HP500 boost question
  245. Help 502 EFI stalls out
  246. 1996 HP 500 Carb lifter part numbers
  247. Removing CATs on new 8.2L motor
  248. Low oil pressure and Oil cooler questions
  249. Ram air
  250. Mayfair Hydraulic Steering Ram Rebuild help.
  251. 2001 555 PCM to mefi 3
  252. motor not hitting WOT?
  253. Need help with engine issue
  254. Knock came and knock left
  255. Paging skater Scott 36
  256. Mercruiser 496 ho overspeed code
  257. Raymarine DVD
  258. A little roots blower info.
  259. Can you please direct me to some Velvet Drive Identification information.
  260. Are my 454's magnum's??
  261. which fuel transfer pump to use ?
  262. 500 efi fuel fouling plugs
  263. 525EFI Header Failures - CMI vs Hardin - All failing
  264. Mercruiser Computer Programming
  265. 525 EFI sea pump stops pumping
  266. Fuel Pressure
  267. Should I scrap my anti-spam valves?
  268. 088 heads on gen 5 454 ?
  269. Trim and Tilt Pumps, why is one so much faster??
  270. what is killing my fuel pumps?
  271. SBC to BBC Conversion Questions
  272. Bilge pump in Fountain left running dry- are they toast?
  273. solenoid or trim pump bad?
  274. Gaffrig controls neutral safety switch
  275. 600SCI Gurus Needed -- No BOOST
  276. 088 Heads Max lift?
  277. adding 174 blower
  278. 502 Mag Removal
  279. 525 Header issue; I'm stumped..
  280. Top speed and cruise speed and gearing advice new to forum
  281. Pump for toilette and post-swim hotwash
  282. What Size Carb.
  283. Anybody use these boat dollies?
  284. Looking for advice
  285. SSM V alignment tool
  286. Starboard motor won't start - electrical, fuel?
  287. Mirage won't plane off
  288. Can anyone help identify this boat, and help provide feedback on possible purchase.
  289. 500 EFI Fuel Line longevity
  290. Cigarette 20 Update
  291. Fuel feed issues
  292. Time to replace fuel lines?
  293. Misfiring carb 502
  294. How much does Deck weigh on a Formula 302 SR1. I want to lift it to access stringers
  295. 525 EFI Alarm
  296. Noise when shifting
  297. 525 EFI H2O pressure?
  298. oil temp
  299. Merc 5.7 2bbl 1998 unique concerns.
  300. Replacing dipstick tube in 454
  301. Oil pressure problems!
  302. 454 to 502 repower suggestions
  303. PBM/Erson rods and cranks, comparable??
  304. 500efi overheating hot port header, help
  305. jet size
  306. Motor question for the Guru's...
  307. HP 500 carb fuel mech pumps
  308. Intake to head sealing issue question
  309. Collapsed lifter, bent pushrod
  310. anyone make hinge pin covers?
  311. Value 26 Prowler
  312. Ride quality older 38's which ones to look at
  313. need HEI DUI distributor info
  314. Hardin Marine - Hurricane Lite 525 Headers -- who's got 'em??
  315. solid or rubber prop hub???
  316. 525sc conversion
  317. 7.4 freshwater cooling
  318. Lower than I like Oil Pressure
  319. marine a/c units
  320. aftermarket mechanical fuel pump
  321. need help with code 42 on V6
  322. O2 guage
  323. Bravo 1 Vibration in forward drive not reverse??
  324. Dual trim pumps, one switch?
  325. Remote trim switches
  326. Reading Starts Me Thinking - More Power
  327. Water in fuel lean condition.
  328. Low oil pressure in brand new 502 efi
  329. Serpentine crossover kit
  330. power gone from my 8.2 mercuiser
  331. Moisture in valve covers with oil thermostat?
  332. Power steering leak
  333. 500HP carb- synthetic oil?
  334. oil spray from the front of a new 502 motor custom built
  335. Intake ?
  336. Swain Tech PC-9 Piston Skirt Coating
  337. 81 Formula, both alternators do not work?
  338. Water pump shaft seal
  339. Oil filled bilge - need advise please !
  340. how do you align an engine?
  341. efi vr carb
  342. Easiest way - converting 502 to EFI
  343. 502 mpi no inj. pulse on 1/2 the inj ?
  344. Fuel Injector Replace/Repair 805225A1
  345. Switch standard Bravo 1 to XR?
  346. has anyone ever powder coated blower pulleys
  347. PCM 555 codes
  348. 496 Mag HO front motor mount options?
  349. Camshaft sensor for 2001 496
  350. Murcury Racing HP500
  351. Old School HP500 water pump blown gasket (NOT SEA PUMP)
  352. Fuel tank level sender for formula needed
  353. Quietest thru transom exhaust setup
  354. Oil pressure gauge?
  355. Sloppy steering on bravo want to add hydraulic steering
  356. Which brand do you like?
  357. Merc 5.7 - 260hp
  358. Rapid beeping?
  359. Nordskog sending units?
  360. Autometer Gauge Connections
  361. prop slip?
  362. 781 heads best mods
  363. 38 Fountain fever wind deflecter /where to get one?
  364. How to tell the diffrence between a bravo 1 and 2
  365. any holley TBI experts here?
  366. Cam question
  367. Stupid cam shaft idea? Serious question
  368. Jetting starting point?
  369. drive position indicator - cable type
  370. gen 4 gen 5 question
  371. 1986 Wellcraft Nova III opinions please
  372. Oil sending unit and -----?
  373. 781 bbc heads from auto?
  374. Voltage regulator?
  375. 502 Mag Mpi Issue
  376. Measuring Compression Ratio
  377. Any good internet dynos??
  378. Raylar 496 HO upgrades
  379. 502 500hp efi sumble /stall
  380. Good oil pressure sending unit
  381. Stock 330 fuel pump question
  382. Long or short risers needed for this cam?
  383. Mark IV 502 Mag Hole In Piston And No Oil Pressure Help!
  384. 1000 Islands Poker Run Who is going?
  385. I need 1 set of Stainless Marine Exhaust for a SBC. Who's got the best price?
  386. Sea water/fuel pump questions. Leaking oil.
  387. PowerQuset Interior Lights - HELP NEEDED
  388. Could backfiring cause this?
  389. 454 Cam selection down sizing?
  390. if i had water in bravo one fluid...
  391. csm with vinylester
  392. Mercury efi to holley efi. How to get the correct throttle throw.
  393. electric circulating pump??
  394. Iac for 97 454 mag MPI's part number anyone know.
  395. Q-jet jetting help please
  396. Exhaust Riser gasket?
  397. guys I need help please 496 ho surges almost dies...
  398. Helm joint replacement?
  399. Any A/C techs on Long Island?
  400. EMI Thunder Exhaust On Stock 6.2s
  401. Serpentine to v-belt
  402. Strange MPI problem....
  403. 525efi milk shake
  404. 350 mag miss HELP please
  405. engine fault code?
  406. What thermostat housing for closed cooling system??
  407. blowers
  408. Hard steering at speed..
  409. 502 mpi mods......
  410. Fuel Delivery Issues
  411. Need part # for seal on water pump.
  412. Another newbie prop question
  413. 1997 sv24 challenger boat
  414. MSD Distributor
  415. Help! Merc s/c seals & bushings
  416. Posting pictures with an I Pad
  417. Gen5 to gen 6 have had nothing but problems
  418. Need Torque specs for top two bolts on gimble
  419. 280 Tabs to 380 tabs
  420. Marine Machine Hardware
  421. Small water leak on a XR Drive
  422. Black hose water drain system 496 HO
  423. Solid Roller Cam Worth it??
  424. Weak Starting - Ground?
  425. HELP!! 1996 Baja 302 windshield broken!
  426. circulation pump failure???
  427. How much hp will this build produce
  428. Power steering not working replaced parts...?
  429. Motors marked "BRE 168" any ideas?
  430. square k planes
  431. Simple oil cooler upgrade
  432. Prob and drive height suggestions for Donzi 25zx w 625hp
  433. vacuum pump, blown big block
  434. Merc 502 efi code 23 iat censor
  435. 500 efi exhaust issues
  436. Aluminum Intake manifold + salt brackish water
  437. Mercruiser Automatic Transmission
  438. Where's oil thermostat on merc 525 please
  439. What's considered too much oil pressure?
  440. Melting exhaust boots but engine not running over 180!?!?
  441. milkshake clean up
  442. Spark Plug Gap
  443. Benefits of quad rotor
  444. Any Fast 22ft Stingrays maxims out there??
  445. Distributor housing oil boss
  446. Building a new trailer for a 87 Midnight express 37'. Need help!
  447. Cast crankshaft OK?
  448. Reversion possibility question on SBC with XM270HR cam
  449. Riser gaskets...which one?
  450. 502 MPI w/cool fuel return line fuel flow
  451. Best way to clean the outside of an engine covered in oil?
  452. Replacing MEFI1 with ?
  453. Mystery Piece of Stainless in my Exhaust Tip - please help identify
  454. 8.1 oil bypass valve
  455. Stainless vs brass sea pump
  456. Longevity MIG welder
  457. crane 741 cam and stock roller lifters
  458. 502 fuel injected spudders and dies randomly
  459. Mercrusier 350mag w/Bravo 1
  460. Silent Choice Exhaust not opening.
  461. 500 EFI Powersteering pump defect ???
  462. Pressure test headers question
  463. Trim Tab screws ...kinda came out ....?
  464. Cam recommendations for these heads?
  465. 525 vs 496HO
  466. 454 EFI making a sqealing sound
  467. Mini Starter
  468. Fuel level in cool fuel module 496 HO
  469. 38 Fountain Lightning Worth It or Not ?
  470. EGT ranges procharged carb 555
  471. Hydraulic Ram...Who makes this?
  472. Bad powersteering pump?
  473. Liquid filled water pressure gauge problem
  474. 496 HO in-line fuel filter
  475. Using A MSD Box With Stock Merc Distributor
  476. Engine cover help
  477. Engine trouble shooting help needed.
  478. Any feedback on Venture aluminum trailers? specifically the tandem 5k axle 8725
  479. crank choices
  480. What do you clean your boat with?
  481. Installing water pressure gauge
  482. Oil cooler suggestions for 468 bbc
  483. Value of a mark iv standard 454
  484. Billet serpentine pulley 502 MPI
  485. Mercury Zero Effort Throttle Wiring
  486. Power Steering issues
  487. Choosing an oil pump
  488. Screws for exhaust tips?
  489. Looking for an engine builder in South Florida...Who do you know?
  490. OX66 Outboard gages to Gaffrig
  491. 454 Mag MPI not revving.
  492. Heat issues help.
  493. Old merc 90 outboard question
  494. Replacement iron heads for Edelbrock RPM performer
  495. Trim Tab Cable Help
  496. Mercruiser 6.2 Upgrades
  497. 704ci Motor Help
  498. 137-9400 mayfair steering
  499. Carb help
  500. Heavy duty shift cable??