View Full Version : General Q & A




  1. Storage of gasoline
  2. conversion i/o to o/b help.... pics... info... anything
  3. Couple quick questions
  4. Grilling go fast
  5. Good mechanic
  6. lightning headers in a 25 Daytona?
  7. Mechanic needed pompano beach area
  8. 502 mag mpi not priming oil??
  9. Turndowns and water reversion?
  10. Fuel Stabilizer or Octane Booster?
  11. Found a 525 short block! What's it worth?
  12. +.300 lifters
  13. Baja 33 Outlaw Parts
  14. Search Tempest - Trojen virus??
  15. The million dollar question
  16. msd
  17. determining oil
  18. EFI 525 rear mounted camshaft sensor???
  19. Merc 700sci hrs/lifespan before rebuild
  20. Roots supercharger intake question
  21. Trouble free 525efi - do they exist?
  22. Different size headers
  23. Blower Application - Fuel Pressure Reg. & Return Valve
  24. 502 Ring Recommendation Please
  25. Good Bad opinion Formula 292 or 312
  26. original motors in a 91 sutphen
  27. Leaking Hatch Rams
  28. Mesa Balancing
  29. HTM oil pressure gauge
  30. Regular or Swept back
  31. Budget 454 Build
  32. 420hp 454
  33. benefits of distributor-less ignition
  34. 454 Repower
  35. 500 efi
  36. Dropping some weight on a HP500 carb?
  37. Any one interested in a boat move New Orleans to Detroit Area
  38. Best Cam Choice - Non-roller 350 with Vortec heads
  39. Steering Wheel rotary circuit switch?
  40. Carb talk
  41. Carb CFM?
  42. Gil Manifold Thoughts
  43. head gasket ?
  44. Going blown have a few questions?
  45. 97 PQ 270 laser wt twin 350 mags to 383 400hp what kinda speed
  46. 350 mag rebuild to 383. oil cooler Question
  47. AN fittings and Stainless braided lines
  48. what's the best clamp on muffler/silencer
  49. Formula 242 drive height.
  50. B&M 250 vs 420 Mega Blower
  51. 2001 Sea Ray 280 SS Engine Question
  52. Low water pickup depth below bottom
  53. Have you seen this exhaust manifold before????
  54. 500HP top end in a 502 MAG
  55. Performance Boating Magazine
  56. 525EFI Valve Springs Concerns
  57. Favorite BBC Rod Thread
  58. Upgrades to Cabin Door and Hatches.
  59. Calling all mechanics
  60. Pulled one of my gimbals and the transom is in great shape! Do I still replace it?
  61. Looking to set up a back-up bullet for the chamber
  62. HP 500 Head and Cam upgrade
  63. Alternates for Bravo drives
  64. 7.4 mpi stock cam specs needed
  65. Can you keep the thermostat and circulating pump on roots type blower motors?
  66. engine adjustment front and back.
  67. Fuel system set up
  68. valve spring bearing
  69. Twin engine power steering question
  70. CMI Headers vs Stainless Marine
  71. Removing Silent Choice Exhaust ???
  72. .937 lifters?
  73. Rod bolts, main caps, and what not.
  74. Best oil filter with sandwich adapter and plugged bypass?
  75. Any suggestions on a bench buffer & polisher
  76. Borg Warner 72C transmission upgrades?
  77. Choosing Valve Covers
  78. Another Omc thread
  79. Smartcraft Alarm
  80. New Holley Ultra HP carburetor leaking fuel from throttle shafts....Ideas?
  81. Hyd. roller lifters to solid roller lifters?
  82. swapping k throttle
  83. NXT Transmission
  84. Piston to valve clearance - 454 Mag short block
  85. Fitch Fuel Catalysts
  86. Best place to order Mercury parts from
  87. Need an Anchor
  88. Corvette C-7 LT1 Engine for marine use?
  89. Silent Choice on a 525 EFI 29' Fever
  90. 731 or 741
  91. Oil pump thread
  92. De-tuning my 2001 ilmor supercat 517
  93. Missing skeg(s) and cavitation plate
  94. 502 mag torque #
  95. Is there any product that softens vinyl (interior)? What is the best cleaner?
  96. Drive couplers
  97. boat length?
  98. Blown head gasket and worn wrist pin... rebuild advise?
  99. Wellcraft scarab cv 7.4 v8 engine.
  100. Pressure checking manifold,headers
  101. Flat vs Roller, Blown 454
  102. Can you make a 502 mpi flow more air?
  103. 525 Header/Tailpipe issue
  104. 1" or 2" carb spacer
  105. Dyno proven 675-700 HP 540CI recipes?
  106. Talk to me about closed loop cooling...any reason not to?
  107. Need Help on Heads on Gen 5 454's
  108. Need Help on Heads on Gen 5 454's
  109. Upgrades to stock 350 sbc
  110. Hawk 502 specs
  111. Bearing clearances, oil weight, and more...
  112. Intake Manifold
  113. Fuel Pump and Filter mounting
  114. Hydraulic vs Electric trim tabs
  115. EFI intake
  116. GoPro Cam Choice. . . .
  117. Carb to EFI
  118. Time to rebuild the 502...
  119. Oil restrictor size hp500
  120. 1976 stinger jet boat
  121. Want more hp out if my 502?
  122. How do i get the air out of my K-280's trim tabs?
  123. Has anyone used the new merc digital trim indicators?
  124. Fountain bilge light - bulb ID
  125. How is compression ratio figured?
  126. Who's going to the PRI show next month
  127. IMCO fuel valve instructions please
  128. procharged 502 fuel system
  129. 540CI builds, MAX RPM?
  130. Bravo or Bravo x3
  131. Midrange and low RPM grunt. Discuss please.
  132. 2011 Sea Ray 240 captain seat cylinder adjustment
  133. HELP i have a gremlin onboard
  134. SB Exhaust manifolds
  135. 8' beam into 7'9" garage door
  136. Antifreeze for Winterize Mercury 700's?
  137. Cam Questions - Little Help/Direction needed
  138. single plane intake vs. dual plane
  139. Blue engine maint?
  140. Top end refresh?
  141. Enine Builders?
  142. 388 hustler that was in the classifieds
  143. Looking for some real out of the box thinking....
  144. another milkshake
  145. What size is this
  146. HP 500 valve covers....
  147. Best way to clean old fuel tanks
  148. ss rod ends?
  149. Weiand 177 or 256, which kits?
  150. Step By Step : Building An 871 Blower
  151. Baja 240 sport (24 outlaw) VS 250 (270)es
  152. Where to buy bolster tops?
  153. Fuel pump
  154. How to tell if its an HP gimble ring or not?
  155. Projected or non with blowers?
  156. Smashed Plugs on fresh re-build, any advice?
  157. Does prop slip increase or decrease with speed? Top speed less than expected.
  158. Smartcraft gauge rigging question
  159. What is this plate called and where can I get one?? SsmII
  160. Antifreeze/Magnesium question. (non boating related)
  161. 1999 vortec 454 yes or no
  162. Anyone change an Oil Thermostat in a HP500 Filter housing?
  163. Circulating Pump Size
  164. Using Marine battery in Truck?
  165. motor oils prefered on performance boats
  166. how to remove gas overflow stain side of boat?
  167. Holley fuel pump safety switch 12-810. 2 bad in one year.
  168. Engine Rebuilding
  169. header friendly sub for r44xls
  170. HELP PLEASE....Thoughts on repowering
  171. Roots Blower Sizing
  172. Engine Pre lube systems
  173. boat vapor locked after taking off fuel filter/water seperator
  174. company to handle blower DIS/REassembly and powdercoating?
  175. Gen 6 Heads on a Mk 4 Block
  176. Ebay water jacketed headers?
  177. Innovative Wideband A/F system - cable too short
  178. Revolution Marine Oil Reservoir
  179. Oil pressure safety
  180. Winter upgrades, LEDs, underwater lights, etc
  181. My quest for 60 MPH
  182. Stock power to Ilmor swap
  183. Outboard motor question
  184. Merc Racing 575 SCI running very rough/rich
  185. Kaama Question?
  186. Winterizing Question- Looking for Ideas
  187. Fuel stabablizer
  188. Fuel Filter
  189. 1988 Merc 420's
  190. Gas Ssteam Out Of Whipple Chargers
  191. Gauges Cycle/Sweep
  192. piston coatings
  193. merc twins 496HO will not exceed 2800
  194. Merlin heads
  195. Valve Springs & Rocker Arms - 525EFI's ???
  196. Exhaust Replacement ?
  197. Can we change our S/N
  198. Max safe RPM?
  199. changing throttle shifter configeration on Gaffrig
  200. What's a 502 block worth
  201. Gen 3 Cool Fuel Winterization?
  202. 496 ecm
  203. Found external leak on manifold - crack
  204. milkshake under stbd valve cover, hi water temp on the port side of the block.
  205. Looking for a Twin Disk mechanic
  206. sonic prowler 496HO PCM PROBELM??
  207. Machine shop in SouthEast Michigan
  208. Can I start the engines on the hose with the drives off?
  209. Hawk 525sc's
  210. Secondary idle screw adjustment on quick fuel 1050?
  211. Gen6 cylinder bore question max bore?
  212. 525 rebuilds with 250 hours
  213. Another bad motor
  214. Stainless marine gen 3 gaskets
  215. Power steering fluid tempature.
  216. Why do larger roots blowers use 2 carbs?
  217. Oil temp problem in my 572, need input/advice....
  218. Finally got a new tow rig! (any other 8.1 owners out there?)
  219. Need Boat Mechanic / Engine Builder in Palm Beach Area
  220. Smartcraft and gauges ?
  221. 598 build questions
  222. Profile picture
  223. Timing a custom supercharged engine
  224. gas tank
  225. Smoked 502 tonite
  226. Bbc with v6 module??
  227. Phenomenal experinece with MarineEngine.com
  228. Need engine advice N A 598 cubic inch rebuild
  229. 700 sci - over heat at high rpm only
  230. Twin Turbo Build
  231. Water Press. location
  232. Exhaust manifold differences 502 vs 525 efi
  233. Another Engine Dynoed today.
  234. WTF Did I Just Do. Considering a Formula 400 SS
  235. 33 Baja outlaw vs 32 fountain fever
  236. SBC Built, now looking for jet recommendations
  237. 502efi
  238. 525EFI Warm start problem - ??
  239. 29 fever triple digits
  240. Who makes the Black Thunder?
  241. Little help if possible
  242. Remote oil filter mounting heigth?
  243. Vibration above 4200
  244. Bravo1 drive goes down, but won't go up.
  245. What muffler / silence are these?
  246. big cubic inch chevy?s
  247. Sea Water Pump Pulley?
  248. 502 EFI, spark coming out of the coil, no spark at the spark plugs
  249. Thunderbolt IV sensors
  250. Twin engine boat porposing problem
  251. New Merc 540 replacement engine
  252. Inexpensive 454 mag performance up grades
  253. 500 efi upgrades
  254. Bennett trim tabs
  255. What problems to look for on Merc 700's
  256. Need some help with engine replacement
  257. Cam guru's please read
  258. Question On Coated Pistons
  259. big block chevy correct spark plugs
  260. Bbc valve cover question-hardin extreme
  261. Bravo upper internal plug?
  262. 502 HO Mag questions
  263. Mercury Outboard Mechanic
  264. Recurring gauge problem - 525EFI
  265. Stroker fuel injection
  266. Wet Exhaust to Dry Exhaust
  267. Windshield for a 2003 HTM 24ss???
  268. Mefi 1 to mefi 3 question
  269. The Blower Shop Intercoolers WTF!!!
  270. single SSM 6 drive height? Or who to call?
  271. Weird 525EFI Question
  272. Gimbal housing help needed
  273. 502 Merc parts ID
  274. Trim Tab Advice??
  275. merc mefi 3 question
  276. Transom that was mounted with an X drive mounting a Bravo 1 question
  277. 496 HO 152 IAC Output Code
  278. who do i contact to fix my username to post a classified ad
  279. 1997 502 EFI cranks but won't start, will try and run after shot of starter fluid
  280. Fuel System Fittings
  281. 377 flywheel
  282. 496 HO maintenance while replacing transom assembly
  283. What are they worth?
  284. Vibration on down trim
  285. Where to purchase oil coolers and hardware
  286. 525efi rev limiter
  287. prop changes from 1.5 to 1.36
  288. 1999 Merc 454 mag ign issues
  289. motors bogging ? fuel pressure maybe?
  290. Engine Quest/RHS 320 Iron heads
  291. Starving for fuel...
  292. Can These Be Repaired ????
  293. QUICKSILVER SBC long block assembly worth building?
  294. I need to find a good shop in the Gulf Shores, Al or Pensacola, Fl area
  295. Aluminum Head Exchange to Steel Head
  296. Prop shaft carrier bearing stuck
  297. Aluminum Head Repair
  298. how hard is it to mefi tune my own after i install procharger
  299. 5 blade on 2004 288 sunsation
  300. Value Of a 91 Mark IV 502 Mag
  301. dry exhaust
  302. Volvo Penta 7.4 Gi vs GSi rev limiter
  303. tall deck to short deck exhaust problems
  304. Opening a can of worms
  305. merc xr gear pinion
  306. Trying to identify a pair of Mercury OB's
  307. Front Seal Unazzed
  308. 1998 Mercury 250 EFI
  309. 496 with whipple worth
  310. 350 mpi possable reversion
  311. Carbed 502/502HP fueling issues on 1996 Baja 272 Islander
  312. 502 magnum mpi IAC crossover
  313. Wrong oil?
  314. 454 Baja overheating
  315. Anyone know how too get ahold of mr gadgets?????
  316. Felpro 17042 vs 17046
  317. Roots Supercharger experts Snout problems
  318. 500efi - starter burned up + more - Help!
  319. Fuel supply issues
  320. Checkmate 251 Convincor vs Profile 26
  321. 1989 Power Play Conquest Decals
  322. Latham Steering Leak
  323. 502 EFI shutting down after 5 seconds of run time
  324. Part numbers question
  325. Volvo Duo prop
  326. Hp 500 carb setup help
  327. One exhaust is only shooting out water
  328. HP500 boost question
  329. Help 502 EFI stalls out
  330. 1996 HP 500 Carb lifter part numbers
  331. Removing CATs on new 8.2L motor
  332. Low oil pressure and Oil cooler questions
  333. Ram air
  334. Mayfair Hydraulic Steering Ram Rebuild help.
  335. 2001 555 PCM to mefi 3
  336. motor not hitting WOT?
  337. Need help with engine issue
  338. Knock came and knock left
  339. Paging skater Scott 36
  340. Mercruiser 496 ho overspeed code
  341. Raymarine DVD
  342. A little roots blower info.
  343. Can you please direct me to some Velvet Drive Identification information.
  344. Are my 454's magnum's??
  345. which fuel transfer pump to use ?
  346. 500 efi fuel fouling plugs
  347. 525EFI Header Failures - CMI vs Hardin - All failing
  348. Mercruiser Computer Programming
  349. 525 EFI sea pump stops pumping
  350. Fuel Pressure
  351. Should I scrap my anti-spam valves?
  352. 088 heads on gen 5 454 ?
  353. Trim and Tilt Pumps, why is one so much faster??
  354. what is killing my fuel pumps?
  355. SBC to BBC Conversion Questions
  356. Bilge pump in Fountain left running dry- are they toast?
  357. solenoid or trim pump bad?
  358. Gaffrig controls neutral safety switch
  359. 600SCI Gurus Needed -- No BOOST
  360. 088 Heads Max lift?
  361. adding 174 blower
  362. 502 Mag Removal
  363. 525 Header issue; I'm stumped..
  364. Top speed and cruise speed and gearing advice new to forum
  365. Pump for toilette and post-swim hotwash
  366. What Size Carb.
  367. Anybody use these boat dollies?
  368. Looking for advice
  369. SSM V alignment tool
  370. Starboard motor won't start - electrical, fuel?
  371. Mirage won't plane off
  372. Can anyone help identify this boat, and help provide feedback on possible purchase.
  373. 500 EFI Fuel Line longevity
  374. Cigarette 20 Update
  375. Fuel feed issues
  376. Time to replace fuel lines?
  377. Misfiring carb 502
  378. How much does Deck weigh on a Formula 302 SR1. I want to lift it to access stringers
  379. 525 EFI Alarm
  380. Noise when shifting
  381. 525 EFI H2O pressure?
  382. oil temp
  383. Merc 5.7 2bbl 1998 unique concerns.
  384. Replacing dipstick tube in 454
  385. Oil pressure problems!
  386. 454 to 502 repower suggestions
  387. PBM/Erson rods and cranks, comparable??
  388. 500efi overheating hot port header, help
  389. jet size
  390. Motor question for the Guru's...
  391. HP 500 carb fuel mech pumps
  392. Intake to head sealing issue question
  393. Collapsed lifter, bent pushrod
  394. anyone make hinge pin covers?
  395. Value 26 Prowler
  396. Ride quality older 38's which ones to look at
  397. need HEI DUI distributor info
  398. Hardin Marine - Hurricane Lite 525 Headers -- who's got 'em??
  399. solid or rubber prop hub???
  400. 525sc conversion
  401. 7.4 freshwater cooling
  402. Lower than I like Oil Pressure
  403. marine a/c units
  404. aftermarket mechanical fuel pump
  405. need help with code 42 on V6
  406. O2 guage
  407. Bravo 1 Vibration in forward drive not reverse??
  408. Dual trim pumps, one switch?
  409. Remote trim switches
  410. Reading Starts Me Thinking - More Power
  411. Water in fuel lean condition.
  412. Low oil pressure in brand new 502 efi
  413. Serpentine crossover kit
  414. power gone from my 8.2 mercuiser
  415. Moisture in valve covers with oil thermostat?
  416. Power steering leak
  417. 500HP carb- synthetic oil?
  418. oil spray from the front of a new 502 motor custom built
  419. Intake ?
  420. Swain Tech PC-9 Piston Skirt Coating
  421. 81 Formula, both alternators do not work?
  422. Water pump shaft seal
  423. Oil filled bilge - need advise please !
  424. how do you align an engine?
  425. efi vr carb
  426. Easiest way - converting 502 to EFI
  427. 502 mpi no inj. pulse on 1/2 the inj ?
  428. Fuel Injector Replace/Repair 805225A1
  429. Switch standard Bravo 1 to XR?
  430. has anyone ever powder coated blower pulleys
  431. PCM 555 codes
  432. 496 Mag HO front motor mount options?
  433. Camshaft sensor for 2001 496
  434. Murcury Racing HP500
  435. Old School HP500 water pump blown gasket (NOT SEA PUMP)
  436. Fuel tank level sender for formula needed
  437. Quietest thru transom exhaust setup
  438. Oil pressure gauge?
  439. Sloppy steering on bravo want to add hydraulic steering
  440. Which brand do you like?
  441. Merc 5.7 - 260hp
  442. Rapid beeping?
  443. Nordskog sending units?
  444. Autometer Gauge Connections
  445. prop slip?
  446. 781 heads best mods
  447. 38 Fountain fever wind deflecter /where to get one?
  448. How to tell the diffrence between a bravo 1 and 2
  449. any holley TBI experts here?
  450. Cam question
  451. Stupid cam shaft idea? Serious question
  452. Jetting starting point?
  453. drive position indicator - cable type
  454. gen 4 gen 5 question
  455. 1986 Wellcraft Nova III opinions please
  456. Oil sending unit and -----?
  457. 781 bbc heads from auto?
  458. Voltage regulator?
  459. 502 Mag Mpi Issue
  460. Measuring Compression Ratio
  461. Any good internet dynos??
  462. Raylar 496 HO upgrades
  463. 502 500hp efi sumble /stall
  464. Good oil pressure sending unit
  465. Stock 330 fuel pump question
  466. Long or short risers needed for this cam?
  467. Mark IV 502 Mag Hole In Piston And No Oil Pressure Help!
  468. 1000 Islands Poker Run Who is going?
  469. I need 1 set of Stainless Marine Exhaust for a SBC. Who's got the best price?
  470. Sea water/fuel pump questions. Leaking oil.
  471. PowerQuset Interior Lights - HELP NEEDED
  472. Could backfiring cause this?
  473. 454 Cam selection down sizing?
  474. if i had water in bravo one fluid...
  475. csm with vinylester
  476. Mercury efi to holley efi. How to get the correct throttle throw.
  477. electric circulating pump??
  478. Iac for 97 454 mag MPI's part number anyone know.
  479. Q-jet jetting help please
  480. Exhaust Riser gasket?
  481. guys I need help please 496 ho surges almost dies...
  482. Helm joint replacement?
  483. Any A/C techs on Long Island?
  484. EMI Thunder Exhaust On Stock 6.2s
  485. Serpentine to v-belt
  486. Strange MPI problem....
  487. 525efi milk shake
  488. 350 mag miss HELP please
  489. engine fault code?
  490. What thermostat housing for closed cooling system??
  491. blowers
  492. Hard steering at speed..
  493. 502 mpi mods......
  494. Fuel Delivery Issues
  495. Need part # for seal on water pump.
  496. Another newbie prop question
  497. 1997 sv24 challenger boat
  498. MSD Distributor
  499. Help! Merc s/c seals & bushings
  500. Posting pictures with an I Pad