View Full Version : General Q & A




  1. Top end refresh?
  2. Enine Builders?
  3. 388 hustler that was in the classifieds
  4. Looking for some real out of the box thinking....
  5. another milkshake
  6. What size is this
  7. HP 500 valve covers....
  8. Best way to clean old fuel tanks
  9. ss rod ends?
  10. Weiand 177 or 256, which kits?
  11. Step By Step : Building An 871 Blower
  12. Baja 240 sport (24 outlaw) VS 250 (270)es
  13. Where to buy bolster tops?
  14. Fuel pump
  15. How to tell if its an HP gimble ring or not?
  16. Projected or non with blowers?
  17. Smashed Plugs on fresh re-build, any advice?
  18. Does prop slip increase or decrease with speed? Top speed less than expected.
  19. Smartcraft gauge rigging question
  20. What is this plate called and where can I get one?? SsmII
  21. Antifreeze/Magnesium question. (non boating related)
  22. 1999 vortec 454 yes or no
  23. Anyone change an Oil Thermostat in a HP500 Filter housing?
  24. Circulating Pump Size
  25. Using Marine battery in Truck?
  26. motor oils prefered on performance boats
  27. how to remove gas overflow stain side of boat?
  28. Holley fuel pump safety switch 12-810. 2 bad in one year.
  29. Engine Rebuilding
  30. header friendly sub for r44xls
  31. HELP PLEASE....Thoughts on repowering
  32. Roots Blower Sizing
  33. Engine Pre lube systems
  34. boat vapor locked after taking off fuel filter/water seperator
  35. company to handle blower DIS/REassembly and powdercoating?
  36. Gen 6 Heads on a Mk 4 Block
  37. Ebay water jacketed headers?
  38. Innovative Wideband A/F system - cable too short
  39. Revolution Marine Oil Reservoir
  40. Oil pressure safety
  41. Winter upgrades, LEDs, underwater lights, etc
  42. My quest for 60 MPH
  43. Stock power to Ilmor swap
  44. Outboard motor question
  45. Merc Racing 575 SCI running very rough/rich
  46. Kaama Question?
  47. Winterizing Question- Looking for Ideas
  48. Fuel stabablizer
  49. Fuel Filter
  50. 1988 Merc 420's
  51. Gas Ssteam Out Of Whipple Chargers
  52. Gauges Cycle/Sweep
  53. piston coatings
  54. merc twins 496HO will not exceed 2800
  55. Merlin heads
  56. Valve Springs & Rocker Arms - 525EFI's ???
  57. Exhaust Replacement ?
  58. Can we change our S/N
  59. Max safe RPM?
  60. changing throttle shifter configeration on Gaffrig
  61. What's a 502 block worth
  62. Gen 3 Cool Fuel Winterization?
  63. 496 ecm
  64. Found external leak on manifold - crack
  65. milkshake under stbd valve cover, hi water temp on the port side of the block.
  66. Looking for a Twin Disk mechanic
  67. sonic prowler 496HO PCM PROBELM??
  68. Machine shop in SouthEast Michigan
  69. Can I start the engines on the hose with the drives off?
  70. Hawk 525sc's
  71. Secondary idle screw adjustment on quick fuel 1050?
  72. Gen6 cylinder bore question max bore?
  73. 525 rebuilds with 250 hours
  74. Another bad motor
  75. Stainless marine gen 3 gaskets
  76. Power steering fluid tempature.
  77. Why do larger roots blowers use 2 carbs?
  78. Oil temp problem in my 572, need input/advice....
  79. Finally got a new tow rig! (any other 8.1 owners out there?)
  80. Need Boat Mechanic / Engine Builder in Palm Beach Area
  81. Smartcraft and gauges ?
  82. 598 build questions
  83. Profile picture
  84. Timing a custom supercharged engine
  85. gas tank
  86. Smoked 502 tonite
  87. Bbc with v6 module??
  88. Phenomenal experinece with MarineEngine.com
  89. Need engine advice N A 598 cubic inch rebuild
  90. 700 sci - over heat at high rpm only
  91. Twin Turbo Build
  92. Water Press. location
  93. Exhaust manifold differences 502 vs 525 efi
  94. Another Engine Dynoed today.
  95. WTF Did I Just Do. Considering a Formula 400 SS
  96. 33 Baja outlaw vs 32 fountain fever
  97. SBC Built, now looking for jet recommendations
  98. 502efi
  99. 525EFI Warm start problem - ??
  100. 29 fever triple digits
  101. Who makes the Black Thunder?
  102. Little help if possible
  103. Remote oil filter mounting heigth?
  104. Vibration above 4200
  105. Bravo1 drive goes down, but won't go up.
  106. What muffler / silence are these?
  107. big cubic inch chevy?s
  108. Sea Water Pump Pulley?
  109. 502 EFI, spark coming out of the coil, no spark at the spark plugs
  110. Thunderbolt IV sensors
  111. Twin engine boat porposing problem
  112. New Merc 540 replacement engine
  113. Inexpensive 454 mag performance up grades
  114. 500 efi upgrades
  115. Bennett trim tabs
  116. What problems to look for on Merc 700's
  117. Need some help with engine replacement
  118. Cam guru's please read
  119. Question On Coated Pistons
  120. big block chevy correct spark plugs
  121. Bbc valve cover question-hardin extreme
  122. Bravo upper internal plug?
  123. 502 HO Mag questions
  124. Mercury Outboard Mechanic
  125. Recurring gauge problem - 525EFI
  126. Stroker fuel injection
  127. Wet Exhaust to Dry Exhaust
  128. Windshield for a 2003 HTM 24ss???
  129. Mefi 1 to mefi 3 question
  130. The Blower Shop Intercoolers WTF!!!
  131. single SSM 6 drive height? Or who to call?
  132. Weird 525EFI Question
  133. Gimbal housing help needed
  134. 502 Merc parts ID
  135. Trim Tab Advice??
  136. merc mefi 3 question
  137. Transom that was mounted with an X drive mounting a Bravo 1 question
  138. 496 HO 152 IAC Output Code
  139. who do i contact to fix my username to post a classified ad
  140. 1997 502 EFI cranks but won't start, will try and run after shot of starter fluid
  141. Fuel System Fittings
  142. 377 flywheel
  143. 496 HO maintenance while replacing transom assembly
  144. What are they worth?
  145. Vibration on down trim
  146. Where to purchase oil coolers and hardware
  147. 525efi rev limiter
  148. prop changes from 1.5 to 1.36
  149. 1999 Merc 454 mag ign issues
  150. motors bogging ? fuel pressure maybe?
  151. Engine Quest/RHS 320 Iron heads
  152. Starving for fuel...
  153. Can These Be Repaired ????
  154. QUICKSILVER SBC long block assembly worth building?
  155. I need to find a good shop in the Gulf Shores, Al or Pensacola, Fl area
  156. Aluminum Head Exchange to Steel Head
  157. Prop shaft carrier bearing stuck
  158. Aluminum Head Repair
  159. how hard is it to mefi tune my own after i install procharger
  160. 5 blade on 2004 288 sunsation
  161. Value Of a 91 Mark IV 502 Mag
  162. dry exhaust
  163. Volvo Penta 7.4 Gi vs GSi rev limiter
  164. tall deck to short deck exhaust problems
  165. Opening a can of worms
  166. merc xr gear pinion
  167. Trying to identify a pair of Mercury OB's
  168. Front Seal Unazzed
  169. 1998 Mercury 250 EFI
  170. 496 with whipple worth
  171. 350 mpi possable reversion
  172. Carbed 502/502HP fueling issues on 1996 Baja 272 Islander
  173. 502 magnum mpi IAC crossover
  174. Wrong oil?
  175. 454 Baja overheating
  176. Anyone know how too get ahold of mr gadgets?????
  177. Felpro 17042 vs 17046
  178. Roots Supercharger experts Snout problems
  179. 500efi - starter burned up + more - Help!
  180. Fuel supply issues
  181. Checkmate 251 Convincor vs Profile 26
  182. 1989 Power Play Conquest Decals
  183. Latham Steering Leak
  184. 502 EFI shutting down after 5 seconds of run time
  185. Part numbers question
  186. Volvo Duo prop
  187. Hp 500 carb setup help
  188. One exhaust is only shooting out water
  189. HP500 boost question
  190. Help 502 EFI stalls out
  191. 1996 HP 500 Carb lifter part numbers
  192. Removing CATs on new 8.2L motor
  193. Low oil pressure and Oil cooler questions
  194. Ram air
  195. Mayfair Hydraulic Steering Ram Rebuild help.
  196. 2001 555 PCM to mefi 3
  197. motor not hitting WOT?
  198. Need help with engine issue
  199. Knock came and knock left
  200. Paging skater Scott 36
  201. Mercruiser 496 ho overspeed code
  202. Raymarine DVD
  203. A little roots blower info.
  204. Can you please direct me to some Velvet Drive Identification information.
  205. Are my 454's magnum's??
  206. which fuel transfer pump to use ?
  207. 500 efi fuel fouling plugs
  208. 525EFI Header Failures - CMI vs Hardin - All failing
  209. Mercruiser Computer Programming
  210. 525 EFI sea pump stops pumping
  211. Fuel Pressure
  212. Should I scrap my anti-spam valves?
  213. 088 heads on gen 5 454 ?
  214. Trim and Tilt Pumps, why is one so much faster??
  215. what is killing my fuel pumps?
  216. SBC to BBC Conversion Questions
  217. Bilge pump in Fountain left running dry- are they toast?
  218. solenoid or trim pump bad?
  219. Gaffrig controls neutral safety switch
  220. 600SCI Gurus Needed -- No BOOST
  221. 088 Heads Max lift?
  222. adding 174 blower
  223. 502 Mag Removal
  224. 525 Header issue; I'm stumped..
  225. Top speed and cruise speed and gearing advice new to forum
  226. Pump for toilette and post-swim hotwash
  227. What Size Carb.
  228. Anybody use these boat dollies?
  229. Looking for advice
  230. SSM V alignment tool
  231. Starboard motor won't start - electrical, fuel?
  232. Mirage won't plane off
  233. Can anyone help identify this boat, and help provide feedback on possible purchase.
  234. 500 EFI Fuel Line longevity
  235. Cigarette 20 Update
  236. Fuel feed issues
  237. Time to replace fuel lines?
  238. Misfiring carb 502
  239. How much does Deck weigh on a Formula 302 SR1. I want to lift it to access stringers
  240. 525 EFI Alarm
  241. Noise when shifting
  242. 525 EFI H2O pressure?
  243. oil temp
  244. Merc 5.7 2bbl 1998 unique concerns.
  245. Replacing dipstick tube in 454
  246. Oil pressure problems!
  247. 454 to 502 repower suggestions
  248. PBM/Erson rods and cranks, comparable??
  249. 500efi overheating hot port header, help
  250. jet size
  251. Motor question for the Guru's...
  252. HP 500 carb fuel mech pumps
  253. Intake to head sealing issue question
  254. Collapsed lifter, bent pushrod
  255. anyone make hinge pin covers?
  256. Value 26 Prowler
  257. Ride quality older 38's which ones to look at
  258. need HEI DUI distributor info
  259. Hardin Marine - Hurricane Lite 525 Headers -- who's got 'em??
  260. solid or rubber prop hub???
  261. 525sc conversion
  262. 7.4 freshwater cooling
  263. Lower than I like Oil Pressure
  264. marine a/c units
  265. aftermarket mechanical fuel pump
  266. need help with code 42 on V6
  267. O2 guage
  268. Bravo 1 Vibration in forward drive not reverse??
  269. Dual trim pumps, one switch?
  270. Remote trim switches
  271. Reading Starts Me Thinking - More Power
  272. Water in fuel lean condition.
  273. Low oil pressure in brand new 502 efi
  274. Serpentine crossover kit
  275. power gone from my 8.2 mercuiser
  276. Moisture in valve covers with oil thermostat?
  277. Power steering leak
  278. 500HP carb- synthetic oil?
  279. oil spray from the front of a new 502 motor custom built
  280. Intake ?
  281. Swain Tech PC-9 Piston Skirt Coating
  282. 81 Formula, both alternators do not work?
  283. Water pump shaft seal
  284. Oil filled bilge - need advise please !
  285. how do you align an engine?
  286. efi vr carb
  287. Easiest way - converting 502 to EFI
  288. 502 mpi no inj. pulse on 1/2 the inj ?
  289. Fuel Injector Replace/Repair 805225A1
  290. Switch standard Bravo 1 to XR?
  291. has anyone ever powder coated blower pulleys
  292. PCM 555 codes
  293. 496 Mag HO front motor mount options?
  294. Camshaft sensor for 2001 496
  295. Murcury Racing HP500
  296. Old School HP500 water pump blown gasket (NOT SEA PUMP)
  297. Fuel tank level sender for formula needed
  298. Quietest thru transom exhaust setup
  299. Oil pressure gauge?
  300. Sloppy steering on bravo want to add hydraulic steering
  301. Which brand do you like?
  302. Merc 5.7 - 260hp
  303. Rapid beeping?
  304. Nordskog sending units?
  305. Autometer Gauge Connections
  306. prop slip?
  307. 781 heads best mods
  308. 38 Fountain fever wind deflecter /where to get one?
  309. How to tell the diffrence between a bravo 1 and 2
  310. any holley TBI experts here?
  311. Cam question
  312. Stupid cam shaft idea? Serious question
  313. Jetting starting point?
  314. drive position indicator - cable type
  315. gen 4 gen 5 question
  316. 1986 Wellcraft Nova III opinions please
  317. Oil sending unit and -----?
  318. 781 bbc heads from auto?
  319. Voltage regulator?
  320. 502 Mag Mpi Issue
  321. Measuring Compression Ratio
  322. Any good internet dynos??
  323. Raylar 496 HO upgrades
  324. 502 500hp efi sumble /stall
  325. Good oil pressure sending unit
  326. Stock 330 fuel pump question
  327. Long or short risers needed for this cam?
  328. Mark IV 502 Mag Hole In Piston And No Oil Pressure Help!
  329. 1000 Islands Poker Run Who is going?
  330. I need 1 set of Stainless Marine Exhaust for a SBC. Who's got the best price?
  331. Sea water/fuel pump questions. Leaking oil.
  332. PowerQuset Interior Lights - HELP NEEDED
  333. Could backfiring cause this?
  334. 454 Cam selection down sizing?
  335. if i had water in bravo one fluid...
  336. csm with vinylester
  337. Mercury efi to holley efi. How to get the correct throttle throw.
  338. electric circulating pump??
  339. Iac for 97 454 mag MPI's part number anyone know.
  340. Q-jet jetting help please
  341. Exhaust Riser gasket?
  342. guys I need help please 496 ho surges almost dies...
  343. Helm joint replacement?
  344. Any A/C techs on Long Island?
  345. EMI Thunder Exhaust On Stock 6.2s
  346. Serpentine to v-belt
  347. Strange MPI problem....
  348. 525efi milk shake
  349. 350 mag miss HELP please
  350. engine fault code?
  351. What thermostat housing for closed cooling system??
  352. blowers
  353. Hard steering at speed..
  354. 502 mpi mods......
  355. Fuel Delivery Issues
  356. Need part # for seal on water pump.
  357. Another newbie prop question
  358. 1997 sv24 challenger boat
  359. MSD Distributor
  360. Help! Merc s/c seals & bushings
  361. Posting pictures with an I Pad
  362. Gen5 to gen 6 have had nothing but problems
  363. Need Torque specs for top two bolts on gimble
  364. 280 Tabs to 380 tabs
  365. Marine Machine Hardware
  366. Small water leak on a XR Drive
  367. Black hose water drain system 496 HO
  368. Solid Roller Cam Worth it??
  369. Weak Starting - Ground?
  370. HELP!! 1996 Baja 302 windshield broken!
  371. circulation pump failure???
  372. How much hp will this build produce
  373. Power steering not working replaced parts...?
  374. Motors marked "BRE 168" any ideas?
  375. square k planes
  376. Simple oil cooler upgrade
  377. Prob and drive height suggestions for Donzi 25zx w 625hp
  378. vacuum pump, blown big block
  379. Merc 502 efi code 23 iat censor
  380. 500 efi exhaust issues
  381. Aluminum Intake manifold + salt brackish water
  382. Mercruiser Automatic Transmission
  383. Where's oil thermostat on merc 525 please
  384. What's considered too much oil pressure?
  385. Melting exhaust boots but engine not running over 180!?!?
  386. milkshake clean up
  387. Spark Plug Gap
  388. Benefits of quad rotor
  389. Any Fast 22ft Stingrays maxims out there??
  390. Distributor housing oil boss
  391. Building a new trailer for a 87 Midnight express 37'. Need help!
  392. Cast crankshaft OK?
  393. Reversion possibility question on SBC with XM270HR cam
  394. Riser gaskets...which one?
  395. 502 MPI w/cool fuel return line fuel flow
  396. Best way to clean the outside of an engine covered in oil?
  397. Replacing MEFI1 with ?
  398. Mystery Piece of Stainless in my Exhaust Tip - please help identify
  399. 8.1 oil bypass valve
  400. Stainless vs brass sea pump
  401. Longevity MIG welder
  402. crane 741 cam and stock roller lifters
  403. 502 fuel injected spudders and dies randomly
  404. Mercrusier 350mag w/Bravo 1
  405. Silent Choice Exhaust not opening.
  406. 500 EFI Powersteering pump defect ???
  407. Pressure test headers question
  408. Trim Tab screws ...kinda came out ....?
  409. Cam recommendations for these heads?
  410. 525 vs 496HO
  411. 454 EFI making a sqealing sound
  412. Mini Starter
  413. Fuel level in cool fuel module 496 HO
  414. 38 Fountain Lightning Worth It or Not ?
  415. EGT ranges procharged carb 555
  416. Hydraulic Ram...Who makes this?
  417. Bad powersteering pump?
  418. Liquid filled water pressure gauge problem
  419. 496 HO in-line fuel filter
  420. Using A MSD Box With Stock Merc Distributor
  421. Engine cover help
  422. Engine trouble shooting help needed.
  423. Any feedback on Venture aluminum trailers? specifically the tandem 5k axle 8725
  424. crank choices
  425. What do you clean your boat with?
  426. Installing water pressure gauge
  427. Oil cooler suggestions for 468 bbc
  428. Value of a mark iv standard 454
  429. Mercury Zero Effort Throttle Wiring
  430. Power Steering issues
  431. Choosing an oil pump
  432. Screws for exhaust tips?
  433. Looking for an engine builder in South Florida...Who do you know?
  434. OX66 Outboard gages to Gaffrig
  435. 454 Mag MPI not revving.
  436. Heat issues help.
  437. Old merc 90 outboard question
  438. Replacement iron heads for Edelbrock RPM performer
  439. Trim Tab Cable Help
  440. Mercruiser 6.2 Upgrades
  441. 704ci Motor Help
  442. 137-9400 mayfair steering
  443. Carb help
  444. Heavy duty shift cable??
  445. Motor Shut Down Filter/Pump/Other
  446. intermittent nav lights and fuel gauge problem?
  447. Baja 260 with 454.... Has mufflers and would like to remove them.....
  448. Gen IV 502 No Oil Pressure..... Help
  449. Timing question..502..
  450. 525 SC fuel problems
  451. 575 sc
  452. hesitation, intermittent backfire etc
  453. When will thes 525s require work?
  454. Running hot according to the gauge.....454
  455. Prop slip calculator
  456. wiring help
  457. Need VDO Temp Sender
  458. New engine in Formula, more problems then a math book!
  459. 502 mpi v-belts part numbers..
  460. TRS transmission problems
  461. Impeller problems
  462. 496 mag help
  463. Size of harmonic balancer pulley bbc?
  464. How fast is an 88 scarab 1 with an efi 502????
  465. Mercruiser 5.7 efi fuel pressure kit from Autozone
  466. 502 mag MPI starts then stalls after replacing cap, rotor, wires and exhaust!
  467. Just got a noise ticket tonight - need options
  468. Broken dip stick tube on my 260 Merc
  469. 454 oil burn... questions on what to check first
  470. Throttle / Shift Controller - Sea Star or Mercruiser
  471. Thru hull tip internal flapper broke
  472. 496 8.1 Timing cover and gear question
  473. LED Gauge Upgrade
  474. 29' baja is shift cable longer with an imco extension box on the drive
  475. ignition troubleshooting ??? help please
  476. External voltage regulator wiring question
  477. 525sc upgrades for more hp
  478. HP 500 intake grommet??
  479. water in oil on fresh rebuilt 468 with m1 procharger intercooled.
  480. power steering pump question..
  481. 502 Catastrophic Failure!!! Why does this happen?
  482. trs to speedmaster
  483. Screw in fuel sending unit
  484. 496HO manifold over heating
  485. K-Planes Bolt Length
  486. Leakdown Test vs Compression Test? Help with a used boat.
  487. Circulating Pumps on 600sc (Convert to X-Overs)
  488. A/C questions
  489. 525 EFI Oil Pressure to High at Idle
  490. Rough idle?
  491. Fuel pump and delivery
  492. Hairline crackin one blade of stainless four blade prop
  493. power steering only works at speed
  494. 1 merc. 700 keeps vaporlocking
  495. New Mallory Ignition, no spark
  496. best replacement trim tab cables for merc k=planes?
  497. 32 fever with small blocks
  498. Feather throttle to keep running until reaching operating temp
  499. Air Fuel ratio
  500. How much HP? on my 454