View Full Version : General Q & A




  1. O/B not Charging
  2. Supercharged BBC with dead hole.
  3. 22p to 24p swap and losing rpm???
  4. HVH super sucker ???? HELP
  5. 97 fountain 24cs problems
  6. Trim Tab/Tilt Cylinder Issues
  7. Water PSI????
  8. Carter Carburetor keeps flooding
  9. Fountain experts needed!
  10. RPM/MPH loss
  11. Alpha One shift problem
  12. 502 Mag EFI
  13. Ran Across a Sandbar...
  14. Paul Phaff engine Ignition issues
  15. Mpg on an 88 Baja 240
  16. help please stalling
  17. Carpet
  18. GLM Cast Iron Manifolds
  19. 496 Whipple, supporting hardware?
  20. Sea Strainer
  21. fuel system
  22. bravo stern jack
  23. 502 Mpi Backfires
  24. More 496 Ho Troubles
  25. Loss of thrust, Rpms redline instantly
  26. H-Beam or Factory Dimple Rods
  27. 1989 454 max RPM
  28. Mercury 700 Oil
  29. Water in my Imco ext. box....
  30. 2001 7.4 Horizon timing question
  31. Thunderbolt IV rev limiter?
  32. Marine engine vs car engine?
  33. Bravo gear noise
  34. K-planes
  35. Sparkplug Wires
  36. Looking for a Lowrance 3500 Depth Gauge
  37. wiring diagram
  38. ignition problem?
  39. Mercury 300X question
  40. valve cover breathing
  41. Stock Merc 525 Oil Capacity?
  42. boat storage
  43. oil sending unit
  44. 502 mpi intake
  45. Opinions on mini torque starters
  46. Any idea what tabs I have??
  47. Alfa drive swap gen 1 upper to gen 2 lower
  48. Speed Issue
  49. 496 closed cooling system
  50. Help with fuel pickup removal
  51. fuel problem
  52. 502 mag engine temp??
  53. First year of the hp500
  54. Replacement Engine
  55. repower 1989 454
  56. Removing Bravo III with DTS
  57. pull motor?
  58. 500 Efi Miss
  59. Adjusting steering
  60. 525 Flame Arrestor
  61. Corsa Captains Call
  62. B&G Marine Radio ?
  63. 500efi hours?
  64. Heritage Boat Identification plaque application ?
  65. replacing exhaust manifold gasket
  66. anyone know where i can find yellow silicone?
  67. 575SCI idle issue
  68. Alpha 1 to Bravo 1 upgrade
  69. bravo 1 hesitation into gear??
  70. looking for tommymonza!
  71. 454 Magnum Spark Plugs? Top choice??
  72. 502 pumps out oil?
  73. Header repair
  74. no compression?
  75. Cracked plugs?? Why do they crack? Best plug for 454 Magnum??
  76. Remanufactured Merc 383 Stroker
  77. Formula 302 windshields, need suggestions!!
  78. 496 HO need help
  79. ITS Trim sender to a old analog gauge
  80. 525 EFI problem
  81. gen6 502 camshaft problems
  82. New bobtail Volvo
  83. 2005 Volvo Penta XDP carbon fiber outdrive removal
  84. Tachs dead?
  85. Raw Water Pump
  86. Ilmor 7-10 temp ?
  87. Will these heads work??
  88. 496 mag flywheel and crank seals
  89. Bleeding air out of steering system.
  90. Need help figuring out water diagram w new headers
  91. 1997 HP 500 octane reqt
  92. 496 Sea Pump Water Pressure
  93. NOS Blackhawk value
  94. In a bind with Trailer Trim
  95. operating @ wot????
  96. 7.4 MPI very sluggish
  97. Newbies questions
  98. 496 HO Electrical problems
  99. what oil to run in motor
  100. When heim joints go bad...????
  101. 320 efi
  102. 78 excalibur 454
  103. 31ft predator cat!! good deal?
  104. need assistance on a part for trim tab indicator please
  105. Number Of Hours Required?
  106. New Borla mufflers??
  107. Looking for a flame arrestor 454 or 502 MPI
  108. bravo cooling hose at gimbal
  109. warm motor boggs down...............
  110. engine hatch actuator help!!!!!
  111. 31ft predator cat. whats it worth?
  112. Stereo install
  113. what else to replace???
  114. 500 EFI Headers
  115. twin 300xs with different fuel burn?!?
  116. Does anyone make a pressure relief valve besides Mercruiser?
  117. 290 volvo hydralic steering add on kits
  118. 502 Mpi- Raise Idle ?
  119. Trim Tab Question..
  120. Exhaust Help
  121. 502 Mpi - Raise Idle ??
  122. One Motor Revs Higher When Trying to Plane
  123. 496 HO hours
  124. What Year was the last year for the 575?
  125. shift lever question
  126. stuck in gear
  127. Need a new cam
  128. motor cutting off
  129. Fuel Guage Pulse!
  130. 496 HO popping at 4000 rpms
  131. Weird Over-rev Issue
  132. 95 502 mpi cold start problem
  133. Wellcraft Nova
  134. 496 mag antifreeze leak
  135. Newbie questions - performance
  136. Carbs spitting while throttling up
  137. Coil Wiring? Thunder Bolt IV
  138. The most beatin into the ground question -- 500EFI Valve Springs
  139. 525SC tuning for 6K feet
  140. Alternate Alternator?
  141. 320 efi heads
  142. engine rebuilder
  143. Thunderbolt gear
  144. 330 454, heads shot, whats options?
  145. transom exhaust cut out Q
  146. Eliminator Daytona 24 handling
  147. Speedo quit working
  148. Hatch Lift Relay
  149. Fuel Pump Problems
  150. Oil Temp Sender Location
  151. Need to set valves and timing
  152. 502 MPI Tach Issue
  153. Engine will not start 525 sc
  154. 496mag repair
  155. need tach help
  156. Scratch Built - wiring Thunderbolt ignitions
  157. Ideas for a boat cover on a non conventional boat shape.
  158. Bolster Supports
  159. throttle plates, intake manifold are coated with a brown /tar/molassis
  160. Swim Ladders
  161. Backfire In Rough Water
  162. Headgasket thickness, how much is too thick?
  163. cavataion plate to bottom of boat distance?
  164. Cant get RPM out of a 454, 330hp
  165. CPProp Mode Switch High
  166. dart iron eagle heads vs merc heads
  167. Pro Charger Carb
  168. Which Marine AC to get?
  169. Testing fuel pressure on 6.2 MPI
  170. Nose Cones
  171. starboard 496 sluggish
  172. Bimini for 32 Foutain
  173. 502 mpi rebuild (used search/beat to death also)have some ???? lso) o
  174. SBC with a Wieand 142 blower ?
  175. Sound like vapor lock / water in tank / fuel pump?? - 6.2 MPI - Help...
  176. Oil pressure dropped!!!
  177. Best Floating Boat Lift
  178. GPS problem
  179. Strange Smartcraft issue
  180. thermostat change-out help needed!!
  181. Biggest cam/ Stainless Marine Std risers
  182. low water pressure fail
  183. Who has the best deals on flame arrestors??
  184. CMI hedder
  185. Cam information
  186. Bravo drive lube leak?
  187. 496HO....what oil
  188. 2009 Baja Outlaw versus 2010 Checkmate 375zt
  189. Bad relay base??
  190. Vibration While Trimming Down
  191. Can I use clamp on mufflers on my dry exhaust?
  192. Headers and reversion
  193. Stereo
  194. 496ho Water Drain Actuator
  195. Need help finding a new boat...
  196. ecm tuning
  197. Throttle handles
  198. Best place for impeller kit?
  199. Rinker Captiva 262 SS performance ???
  200. rusted plugs
  201. 502mpi questions
  202. trim guage problems
  203. 496 water impellar
  204. how much of a pressure should there be when inserting a gimbel alignment tool
  205. 496 is DEAD!!
  206. 454 Mag
  207. vortech supercharged 502 timing ?
  208. 500 efi intake porting
  209. thermostat help needed!!!
  210. Swivel shaft Specs
  211. Vacuum Pump
  212. Hours till oil change?
  213. Donzi Questions
  214. Carb issues
  215. Major Motor Problems
  216. 496 MAG died, crank sensor?
  217. rochester carb on a performer intake Q
  218. Help...Removing an aftermarket nose cone from a Bravo
  219. change from thru hull to drive water pick-up, speed ?
  220. rejet carb after emi thunder install?
  221. Coupler-does anyone besides Merc make these?
  222. GPS antenna battery
  223. max hp Mark IV bowtie block
  224. Stainless Marine Riser Help
  225. Cant get u-joint cups to go in!!
  226. Alternative Speedo Input??
  227. Patriot Alu heads on SBC
  228. Volvo Duoprop to Bravo 3 Question
  229. What all would take out a coupler?
  230. GPS battery
  231. Interior cleaning
  232. Trim tab selection
  233. *****Intake manifold question*********
  234. Sea Water Pump rebuild question
  235. 454 oval or rec port heads
  236. Trs Gimbals
  237. Ignition timing retards
  238. 454 heads
  239. install amp in engine bay compartment???
  240. 496 HO water leakage mystery
  241. Newbie need prop size help!
  242. How far out would you trim a 32 fever
  243. Wht is this??
  244. rings did not seat
  245. Adjusting Throttles ??
  246. Props
  247. New boat, flush questions
  248. Fuel Pump/Fuel Problem
  249. Envision 3200 XS questions
  250. water in Valve cover and Cylinder #1
  251. Need help with an alpha I gen II drive
  252. motor stays running with key off
  253. 454 Build up
  254. milk and reversion
  255. power steering
  256. Popping out the exhaust
  257. fuel pump(s) for 1000/1200hp...help.
  258. Tach Wiring Question
  259. Gauges help needed
  260. oil temp sending unit on Fountain
  261. motor running rough threw code cam sensor fail
  262. What Color is your Drive Oil
  263. Radio issue...
  264. Dextron III in a Velvet Drive...?
  265. 350 Mag Services Manual
  266. New 489 Blown Head Gasket After 2 hrs run time
  267. Blown Head Gasket After 2 hrs run time
  268. how much to build a 496 stroker?
  269. Fuel Regulator Placement??
  270. Any Landscapers around, got a trimmer related question?
  271. 496 MAG HO heating problem
  272. Fuse for accesory power outlet plug
  273. push button shift on Merc trans
  274. how do i post pics
  275. Temperature problem with 454mpi
  276. Can You Convert A 1994 502 Magnum To Carb?
  277. Problem 496 MAG HO with whipple
  278. computer/ecu no good? 502 mag. help please!!
  279. Erratic oil pressure above 4300RPM
  280. stuck engine hatch on 32 fountain fever
  281. New bilge pump not working
  282. Outboard stalls after hot restart
  283. Drive Oil Analysis Lab
  284. GPS question
  285. Ballast Tank Question
  286. Fire Extinguisher ?
  287. 1994 502 Magnum Runing On 4 Cylinders
  288. holley electric fuel pumps
  289. Which HP500 intake gaskets
  290. bad vibration when turning or with the drive tucked in all the way?
  291. Livorsi Speedo quit
  292. Trim tab Indicator
  293. purchacing dry exhaust
  294. New engine tuning
  295. trim limit help please
  296. quicksilver shifter ?
  297. Merc 502... Can I just use a truck starter or is it not the same?
  298. Lake Cumberland
  299. Water pressure guage on closed cooling 525
  300. Gaffrig tach calibration
  301. anode question
  302. Bunk Carpet
  303. Gel coat supplier
  304. Thunderbolt ignition tach wire.
  305. Mufflers for Dry Exhaust
  306. Fuel Pressure Problems
  307. What should fuel pressure be?
  308. Is there an adapter to put 5" hose on a 4" tailpipe?
  309. Timing on a supercharged small block
  310. Bennett trim tab help please
  311. Wema fuel level sender trouble
  312. valve lash
  313. Problem with my 454 Please Help
  314. 91 Octane or 93 Octane w/ Ethanol?
  315. drive swap info
  316. 496ho high idle? please help
  317. Question???
  318. Running lights/Blower causing boat to run like crap
  319. Anyone have troubles with Morel hydraulics?
  320. 575sci with intercooler and 871 upgrade
  321. JL 770 question
  322. pwr strng pump
  323. Motor Surging
  324. Low Compression #4 and #6
  325. Average build time for engine?
  326. Rebuild 502 or repower with 525
  327. MSD Distibutor HELP!!!
  328. More from a 350 mag
  329. Painting my Imco Extension Boxes.....
  330. Old dried up fuel tanks
  331. engine RPM with 25 mirage plus
  332. Need a part description & where to find?
  333. Timing help
  334. gen 6 502's what are they worth/trade
  335. can't get over 3000 rpms on starboard motor
  336. Fuel additive...yay or nay???
  337. timming jumping all over
  338. zero effort shifter cable installation
  339. engine help
  340. 6.2 bearing failures
  341. 454 mpi ps pump
  342. 496 alam every minute
  343. question about drives and lower units
  344. One engine down on RPM at wot
  345. Mercruiser Slow Acceleration Only
  346. Battery Draining
  347. what oilpan for 383 stroker, stock is hitting !!
  348. how much hp 454
  349. Mercury 600sc stalls when shifting imco sc drive
  350. Power Steering turns left, but very hard to turn right??
  351. Best Method for Charging Batteries?
  352. Water Pressure Guage Doesn't Work?
  353. Fuel fill line
  354. Boat pulling to left
  355. xr cavatation plates
  356. 525 vs 496- How many Hours until rebuild?
  357. Fuel Problems. what am i looking at?
  358. Cut filter, have questions
  359. Livorsi Speedo, Garmin antenna
  360. Loss of power/engine coughs then dies
  361. New 525 efi overheating
  362. need muffler
  363. anyone know where to get brass freeze plugs for a 502 ?
  364. engine parts
  365. 598 thoughts please
  366. alternator wiring help
  367. 525 EFI plug fouling
  368. Where to START! Breaker keeps flipping OFF
  369. rooster tail
  370. Timing Issues
  371. trims wont work seperatly
  372. Thanks again RAYLAR
  373. white sludge / film underside valve covers
  374. Holly Carbs New Models
  375. Looking for 2000 Wellcraft Excalibur Windshield
  376. Have you ever had to adjust the camber on your trailer axles?
  377. Pcv sizes
  378. Help! Sneezing and popping coming on to plane.
  379. scanner and workshop manuals
  380. Ignition timing
  381. oil cooler pluming
  382. cut back risers?
  383. Need ideas on how to mount wind deflectors
  384. Trim Tabs drawing power when idle
  385. Timing a Thunderbolt ignition question.
  386. Gps
  387. Mercury systemview trim indicator function
  388. How many hours is a lot on a merc 454?
  389. Tune-up on 7.4 MAG
  390. Running Hot-Help, I need to fix this tomorrow morning!
  391. Gaffrig GPS speedo intermittantly working
  392. p/s pump fitting??
  393. 502zz cam w/ 496 manifolds
  394. 454 Mag Timing
  395. Cam question for water reversion
  396. DPX problem.
  397. How to I.D. Ignition?
  398. TB IV and msd blue box
  399. how much are these motors worth??
  400. water reversion ?
  401. Help With Gauges - Tach Works Randomly
  402. Why so many bb's vs. sb with procharger??
  403. Frozen 500efi... Now i guess i get to build a new one;-)
  404. 25 sunsation impeller change ??
  405. Charging issues
  406. How is water getting in the cylinders of my 496Mag?!?!
  407. Hydraulic hatch cover wont lift *formula boat
  408. gas gauge quit working
  409. Synthetic for an older motor?
  410. Best Oil for a Merlin long Block 540??
  411. Adding 2 stereo batteries
  412. 97 454 Mag stock oil pressure?
  413. alpha one whining
  414. powerglides with twin diesels?
  415. 575sci Intermittant RPM hesitation??
  416. Gauges ??
  417. Oil pressure gauge fluctuating above 3000rpm!!!!
  418. Broken Exhaust Valve Guide SBC
  419. Canfield stud girdles?
  420. 502mag and msd tach adapters:
  421. Stand off box, when do you use them, what size of boat?
  422. HP500 16535 Hydraulic Roller Lifters Cross Reference
  423. RPM issues
  424. oil sandwich adapter
  425. bat boost components
  426. 525SC Stock Jetting?
  427. HP500 Headers and bored over jetting change?
  428. Stock Chevy 454 Timing.
  429. replaced tbolt v with d.u.i. and cant get tach to work
  430. Reverse Rotation Engine
  431. Tb Iv - Help!!!
  432. Fuel Pump Mech. GPH ? which one
  433. 454 mag lean? need advice on what to do
  434. Boat position on the trailer and slings usage
  435. Prop Selection Help Needed
  436. Stock factory hydraulic steering arm leaking
  437. J.c. Marine,,,496 Impeller Kit
  438. prop
  439. I Need a Set of BBC AFR Heads for 598ci. Supercharge
  440. Another Holley Idle Thread - I'm at wit's end!
  441. oil temp sensor placement
  442. Missing alarm check - 496 HO
  443. Speedometer not working with IMCO
  444. 502 MPI hard start when cold
  445. 700sci IAC Fault Code
  446. Air Gap Intake Manifold
  447. How to tap 502mpi fuel rail?
  448. Can't get engine to warm up.
  449. Captain's choice wont stay open
  450. oil line size
  451. 502 -99 wich gasket?
  452. water in oil 454
  453. Constant tension hose clamps
  454. Outdrive Jacks and Stands
  455. msd problems
  456. Exhaust Diverters
  457. Oil T-stat selection and plumbing
  458. Valve guides for Mercury Racing 525 EFI
  459. X-Dimension Help
  460. 4.3 missing
  461. 496 Poppin through exhaust
  462. Blower motor
  463. 502 Ecm
  464. K K Tab Cables???
  465. Ran above 4000 rpm, overheated
  466. Scx Oil
  467. Arneson single cylinder steering
  468. What size/brand line on your box anchor?
  469. New Sarter Motor Or?
  470. batterys
  471. Any idea where these wires go
  472. Bennett Tabs?
  473. bimini top
  474. Special relay for engine hatch actuator???
  475. thermostat housing issues..
  476. Urgent!! Please Read!!
  477. 500 efi rough idle- surge
  478. fuel pressure problem ?
  479. Max HP for Stainless Marine Exhaust
  480. short block or complete???
  481. 525s vs 700
  482. Did I Undercarb my 489?
  483. Seating Capacity 87 Nova III?
  484. 525 Timing Adjustment
  485. B 1 drivr to a XR
  486. Carb/Fuel pump Help
  487. K&N VS. Gaffrig style
  488. Fuel Problem
  489. whats less room on a blower motorI am
  490. Trim Pump Dipstick??
  491. rubber flooring
  492. 502 mpi Fuel Pressure- need help
  493. Steering Helm replacement
  494. Black full cover How Hot?
  495. were to buy new cockpit cover
  496. hp 500 carb jet sizes??
  497. Steering control valve, Saginaw valve
  498. Busted Trim Tab plane
  499. 454 gen 6 H
  500. roller rockers and tall valve covers