View Full Version : General Q & A




  1. How many hours is a lot on a merc 454?
  2. Tune-up on 7.4 MAG
  3. Running Hot-Help, I need to fix this tomorrow morning!
  4. Gaffrig GPS speedo intermittantly working
  5. p/s pump fitting??
  6. 502zz cam w/ 496 manifolds
  7. 454 Mag Timing
  8. Cam question for water reversion
  9. DPX problem.
  10. How to I.D. Ignition?
  11. TB IV and msd blue box
  12. how much are these motors worth??
  13. water reversion ?
  14. Help With Gauges - Tach Works Randomly
  15. Why so many bb's vs. sb with procharger??
  16. Frozen 500efi... Now i guess i get to build a new one;-)
  17. 25 sunsation impeller change ??
  18. Charging issues
  19. How is water getting in the cylinders of my 496Mag?!?!
  20. Hydraulic hatch cover wont lift *formula boat
  21. gas gauge quit working
  22. Synthetic for an older motor?
  23. Best Oil for a Merlin long Block 540??
  24. Adding 2 stereo batteries
  25. 97 454 Mag stock oil pressure?
  26. alpha one whining
  27. powerglides with twin diesels?
  28. 575sci Intermittant RPM hesitation??
  29. Gauges ??
  30. Oil pressure gauge fluctuating above 3000rpm!!!!
  31. Broken Exhaust Valve Guide SBC
  32. Canfield stud girdles?
  33. 502mag and msd tach adapters:
  34. Stand off box, when do you use them, what size of boat?
  35. HP500 16535 Hydraulic Roller Lifters Cross Reference
  36. RPM issues
  37. oil sandwich adapter
  38. bat boost components
  39. 525SC Stock Jetting?
  40. HP500 Headers and bored over jetting change?
  41. Stock Chevy 454 Timing.
  42. replaced tbolt v with d.u.i. and cant get tach to work
  43. Reverse Rotation Engine
  44. Tb Iv - Help!!!
  45. Fuel Pump Mech. GPH ? which one
  46. 454 mag lean? need advice on what to do
  47. Boat position on the trailer and slings usage
  48. Prop Selection Help Needed
  49. Stock factory hydraulic steering arm leaking
  50. J.c. Marine,,,496 Impeller Kit
  51. prop
  52. I Need a Set of BBC AFR Heads for 598ci. Supercharge
  53. Another Holley Idle Thread - I'm at wit's end!
  54. oil temp sensor placement
  55. Missing alarm check - 496 HO
  56. Speedometer not working with IMCO
  57. 502 MPI hard start when cold
  58. 700sci IAC Fault Code
  59. Air Gap Intake Manifold
  60. How to tap 502mpi fuel rail?
  61. Can't get engine to warm up.
  62. Captain's choice wont stay open
  63. oil line size
  64. 502 -99 wich gasket?
  65. water in oil 454
  66. Constant tension hose clamps
  67. Outdrive Jacks and Stands
  68. msd problems
  69. Exhaust Diverters
  70. Oil T-stat selection and plumbing
  71. Valve guides for Mercury Racing 525 EFI
  72. X-Dimension Help
  73. 4.3 missing
  74. 496 Poppin through exhaust
  75. Blower motor
  76. 502 Ecm
  77. K K Tab Cables???
  78. Ran above 4000 rpm, overheated
  79. Scx Oil
  80. Arneson single cylinder steering
  81. What size/brand line on your box anchor?
  82. New Sarter Motor Or?
  83. batterys
  84. Any idea where these wires go
  85. Bennett Tabs?
  86. bimini top
  87. Special relay for engine hatch actuator???
  88. thermostat housing issues..
  89. Urgent!! Please Read!!
  90. 500 efi rough idle- surge
  91. fuel pressure problem ?
  92. Max HP for Stainless Marine Exhaust
  93. short block or complete???
  94. 525s vs 700
  95. Did I Undercarb my 489?
  96. Seating Capacity 87 Nova III?
  97. 525 Timing Adjustment
  98. B 1 drivr to a XR
  99. Carb/Fuel pump Help
  100. K&N VS. Gaffrig style
  101. Fuel Problem
  102. whats less room on a blower motorI am
  103. Trim Pump Dipstick??
  104. rubber flooring
  105. 502 mpi Fuel Pressure- need help
  106. Steering Helm replacement
  107. Black full cover How Hot?
  108. were to buy new cockpit cover
  109. hp 500 carb jet sizes??
  110. Steering control valve, Saginaw valve
  111. Busted Trim Tab plane
  112. 454 gen 6 H
  113. roller rockers and tall valve covers
  114. 420 Mega Blower B&M
  115. smartcraft
  116. 27 Series Deep Cycle for starting
  117. Baja 250 sport engine throttle cable question.
  118. Plug wires
  119. Converting from 502efi to 525EFI
  120. Can somebody tell me what part I need?
  121. heads? cam? small block stroker build
  122. Costs to rebuild Upper drive Bravo One X?
  123. Wire Size
  124. merc fuel cool system
  125. 525 Problems
  126. Shifter/throttle help
  127. 3X18 Oil Cooler Help
  128. 1987 Baja 240 Sport Hatch Lift
  129. k-plane mounting
  130. Priming Oil Pump
  131. Anyone heard of Xtreme Custom Boats??
  132. Any Jet Boat Techs Here?
  133. What in a Holley carb would cause a mid range miss?
  134. 525 sc Thermostat
  135. Livoris to Garmin
  136. Needed Vst Pump Asap
  137. where to be 140 Thermostat 7.4 mpi 1999
  138. Rebuilding A 525 Efi
  139. Carb size
  140. Fixed vapor lock 454mag mpi's with VST
  141. Mechanical Oil Pressure Gauge
  142. Mercury "O" ring sealant ?
  143. batterys
  144. Best Battery Setup??!!
  145. Fuel mileage 454?
  146. Gen VI 500hp
  147. Hawk 525sc oval port intake with rectangle heads
  148. 502 Mpi Problems Help!!!!!!!!
  149. HP nearly stalls when throttled back to idle
  150. Cmi Etops
  151. who makes a trans for torque 1375 hp
  152. props
  153. need help choosing prop for baja sport 250 with 450hp
  154. Feeler: Whats it worth? 1995 454MAG EFI 120hrs Complete
  155. steering wheel out of center
  156. Holly Marine fuel pumps.
  157. 7.4 Liter vs 6.2 Stroker Rebuild - Need Advice!
  158. Idle adjustment
  159. Baja 240 rpm question
  160. teach me about tunnel tabs...
  161. Help with Merc 5.0 cooling issue
  162. 496 HO Oil in coolant issue
  163. 496 HO Warning buzzer issue
  164. stepping The hull
  165. 825 mighty marine demon
  166. sea doo techs??
  167. K-planes
  168. 496 H.O. and Boost pump
  169. drive couplier
  170. mercruiser lower shift cable
  171. VHF Radio
  172. Exhaust Temp
  173. broken motor mount bolt
  174. engine builder or mechanic in ct
  175. temperature problems
  176. 502 MPI hard start, water temps, steam, riser temps ???
  177. hp 500 carb leaking at throttle shaft
  178. holey or bg demond
  179. holey carb gurus
  180. 525 EFI Service intervals -When and what is recommended
  181. How much water presure is to much ?
  182. Whipple intake manifold.....huh?
  183. Best Engines :-) BPM or Crusader ?
  184. 502 hole in piston, oil everywhere
  185. Intermitent whine around 3000 rpm
  186. Engine Serial Number
  187. Corsa Q&Q+ trouble shooting
  188. Power steering weak??
  189. Vibration / U-Joint / Gimbal question - BIII
  190. Trim Tab Size Question
  191. 496 Mag Rich at Idle & Feels weak over 4k
  192. Floating Boathouse
  193. Nose Bleed Supercharger Boaters?
  194. 502 mpi Fuel Pressure Regulator Question
  195. Idle RPM
  196. 525SC Spark Plugs
  197. 87 Pachanga 22 props anyone?
  198. Newbie Outboard/GelCoat Question?
  199. 502mpi Vapor Lock
  200. Power Steering/ Steering Cable???
  201. steering ram size question
  202. Bill Gibbs Racing Oil
  203. Fuel pump oil
  204. Flushing out impeller pieces?
  205. Can't get the Alternator off
  206. Repower 2 x 36ft Spectres
  207. 10% Ethanol enhanced Fuel in my 525SC
  208. 500 efi alternator?
  209. 500 EFI recirculating pump
  210. cost to polish imco lower?
  211. Raylar Heads and Dana Exhaust
  212. Bravo Drives moving upon acceleration
  213. need help: breaking up, loosing rpm when running hard
  214. Recommended oil cooler size?
  215. Holley Carb Tuning
  216. what oil to use
  217. Port Tach jumping around
  218. Known problems and solutions
  219. Throwing accessorie drive V belts
  220. subwoofer box in rear bench and speakers
  221. Silent Choice Wiring
  222. Engines cross cranking
  223. Help new engine has a miss in the 3800-5000rpm range
  224. Forumla for Horsepower estimate???
  225. Oil Temp, What is normal or acceptable
  226. 496 ho over heating
  227. steering issuess
  228. Bravo Drive trims up, not down.
  229. ECU - Arizonia Speed & Marine
  230. 496 HO wont run, help!!!
  231. holley mech fuel pump
  232. 500HP starts missing in rough water conditions only?
  233. NXT1 Dipstick oil leak
  234. Oil temp sensor?
  235. Seawater Pump Belt Problem
  236. Time for new power, what to do?
  237. RPM/temp QUESTION
  238. engine hatch lift
  239. How bad does your boat leak?
  240. 177 blower pulley question??
  241. Best starter for a slightly modified 454?
  242. Shorepower charging
  243. Need blower carbs
  244. Electric Choke not working....
  245. new lenco hp 25x14 tabs
  246. Gaffrig gauges: what do you guys think?
  247. Horsepower Loss do to Wet Exghaust
  248. Jabsco water pump
  249. Livorsi GPS speedo not reading
  250. Oil level weirdness.......
  251. Fuel Pressure 502 mpi?!?!?!?
  252. flyhwheel
  253. Starter noise, but does not turn over.
  254. Stellings Box on 25 OL.....issues....
  255. Do all cats porpoise?????
  256. Smartcraft Guage problem
  257. Outboard Question?
  258. Help me start this 502!
  259. Exhaust Set Up Dif From 9.8 Block To 10.2
  260. 502 Balancer
  261. fuel pump vent hose
  262. Trailering clips for TRS
  263. Best conventional straight weight for a 700 Hp engine
  264. 600sci stage 2 probs
  265. Mechanical trim indicators are sticking!!! Help please!!!
  266. Fuel Problem ?
  267. Apache font
  268. Carb to MPI swap (gen iv)
  269. Change springs on HP500
  270. powersteering pump ?
  271. Ignition Fuse
  272. 1990 Black Widow coming along
  273. Msd Billet Distributor
  274. Inverter ground
  275. Restrictor in Prochgr FMU Vac Line, Why?
  276. How much drive oil in the sea water/fuel pump resevoir?
  277. Upholstery Question!
  278. thermostat housing/exhaust/hose routing questions
  279. Ever hear of a Brady Valve (vaporlock)
  280. Thackery spring
  281. merc racing pcm upgrades
  282. Starter Slave Solenoid Location -- 500 EFI
  283. repair a trim cylinder?
  284. Bad fuel pump?
  285. wire questions on 502 mpi
  286. 330 breaking up at 4200
  287. Can you guys use ZZ502's?
  288. Steering getting stuck when turned all the way left???
  289. omc ford 460 coupler
  290. Plug wires
  291. Compression Specs...
  292. O2 sensor - need install location
  293. props
  294. Need headers for 10:1 540EFI
  295. decent cd player for the $
  296. Intercoms
  297. 2000 454 Mag Mpi Starter Issues
  298. basic holley carb tuning question
  299. Gas Tank Pickup tube
  300. Drive trim Question???
  301. Oil cooler recommendation HP500
  302. Need advise on mounting anew compass
  303. Any thoughts of All American Drive Service?
  304. 525SC Clone Upgrades
  305. Cooking Gear Lube
  306. Fountain Ballast Tank?
  307. Best Headers?
  308. HP 500 (carb) upgrade options
  309. 38 fountain lightning vibration!!
  310. ??? Blown bravo one drive
  311. Alarm Sounding
  312. 500 EFI starting issue
  313. 502 mpi problem!!! HELP!!!!!
  314. Looks like I need a sea water pump; anyone have one?
  315. Oil leak on BBC
  316. White smoke from port exhaust
  317. Aeromotive fuel pump pressure drop?
  318. can i use a automotive water pump for circulation?
  319. Trim Switch
  320. choke problem ( I think )
  321. 502mpi ps/oil coolers set up on 496 build
  322. biloxy talkoffshore
  323. Stainless Marine OR EMI Replacement For Stock Exhaust Manifolds
  324. prop selection
  325. EMI thunder thread on bolts
  326. Both motors, #5 exhaust valve N/G
  327. mercruiser mpi wont start
  328. 500hp valve spring replacement
  329. corsa, 1 not opening completely?
  330. WIX Racing Oil Filters
  331. 500 hp short block
  332. Bad day on the water for 1 motor
  333. RPM loss on engine rebuild
  334. Does Livorsi still make the post style connection?
  335. Help needed fast intercooler
  336. Merc 500HP "Blue Motor" Cam & Heads
  337. GEN VI flywheel info needed
  338. x dimention
  339. Tubes on drives to induce cavitation
  340. Steering, Has anyone installed the Teleflex HPS rotary helm?
  341. Fresh water flush questions
  342. Bravo 1 forward- reverse clip question
  343. Digital Gaffrig Gps
  344. Steering Question
  345. exhaust muffler tip question?
  346. Exhaust Extention Questions
  347. Trim display outside your normal trim angle
  348. E3 Plugs?
  349. Question about cast iron exhaust and changing risers
  350. choice of 2 cams
  351. K-Plane and Trim pump fluid.
  352. Bravo X vs XR
  353. Help--got Gas??
  354. No Voltage to Port
  355. prop shaft wobble bravo 1
  356. Water temperature for 6.2 liter mercruiser
  357. 10' gw invader
  358. Question for the carb Guru's
  359. 92 Nova Steering Wheel Replacement
  360. need 496 experts again fuel prob?
  361. Gimbal bearing pullers
  362. Upgrades for 2000 7.4 MPI
  363. Intake gaskets
  364. Air hose from valve cover to breather
  365. what is this beeping noise?
  366. warning beep?
  367. 502 Oil filter questions w/HP500 oil Thermostat.
  368. 496ho constant beep
  369. Survey items on 1999 HP 500's?
  370. 42 fountain
  371. bluechart and C-Map
  372. electric fuel pump questions
  373. more Rochester Issues
  374. thermostat 454mag mpi's
  375. Best oil for 502 MPI?
  376. Eliminator Ride guide, new cable or replace with new helm as well?
  377. hulls, are newer hulls faster then older ones, do they change that much?
  378. msd
  379. Valve Cover Gromets
  380. Best option for 5.7 Mag exhaust replacment?
  381. How much HP was left on the table HP 500 C/R
  382. MEFI help needed
  383. CMI E-Top through prop
  384. 496ho warning beep
  385. Carb backfire?
  386. The HP numbers are in
  387. Use big cam and big heads or procharger
  388. Why use a Crossover vs. water pump?
  389. 502 Mpi Not Starting!
  390. Mercury Outboard Wiring Diagrams
  391. oil cooler water flow question
  392. Wood Floors similar to Cigarette Playboy
  393. any info would help
  394. Ride guide, new cable or replace with new helm as well?
  395. Mufflers for dry exhaust?
  396. 498 Stroker almost complete, few more ??
  397. Water Pressure Gauge Hose, what to use?
  398. Head bolts or studs
  399. hp 500 heads
  400. RPM and Thermostat Advice
  401. slave solenoid
  402. Which coolant in a 496 Mag
  403. Water flow and overheating issues
  404. cross overs
  405. leverage wax on new paint?
  406. msd for tach ??
  407. Sea Foam in with the oil 496HO
  408. msd slip collar
  409. Need Reversion Help
  410. 211 liberator with 350 mag engine upgrades
  411. Seawater Pump - Impeller Replacement
  412. Trim Tab problem
  413. 502MPI Oil Temp
  414. Scan tool for 502MPI ?
  415. Help wanted on Sixdrive
  416. VAPOR LOCK #&%! BLOWS (help!)
  417. Prop Slip to High?
  418. Power Steering "stiff" on my 454 Magnum
  419. i need a part number
  420. Coan 2 speed transmission
  421. Octane and compression discussion
  422. removing corrision
  423. 496 Loosing Antifreeze
  424. 502 MPI RPM Issue
  425. 454 Mag buildup
  426. Best Batteries?
  427. Intercom's
  428. Changed flappers to external now water reversion?
  429. Polishing Keith Eickart Exhaust
  430. Brand new k-planes- one sticks when down, HELP
  431. push rods
  432. Merc. 454/ 330 Torque
  433. How high can you safely mount a remote oil filter?
  434. opinon on jet docks
  435. Need help stumped...
  436. Just got a stinger 260 I need some help
  437. Wipple ECM upgrade- 496 Mag HO
  438. Engine compartment LED's
  439. Mcleod Electric Seat Wiring Diagram
  440. hydraulic drive stands
  441. 1985 40' Excalibur...
  442. Depth Finder Wire
  443. Cabin carpet - Dye POSSIBLE
  444. trim cylinder leaking
  445. Livorsi speedo light
  446. Engine builder question Help!!!!!
  447. SBC 350 Mag Exhaust Headers
  448. Help w/ Livorsi tach zeroing @5000rpms
  449. Rear Motor Mount Setup
  450. rods bluing
  451. Whats a good Valve Spg. - Rem./Inst. tool
  452. broken valve stem seals
  453. Holley Marine 830 leaking?
  454. performance fuel pump relay?
  455. Starters
  456. Valve springs
  457. carb spacer or not on dart intake
  458. odd bank of my engine is warmer than the even
  459. Alpha One Gen 2 Water Pump Parts
  460. Broken bolt. Mechanic liable?
  461. 502 flame arrestor
  462. few questions
  463. External Steering question
  464. How to buff and polish with Leverage.
  465. flame arrestor size???
  466. best fuel pump for me
  467. How accurate is the liquid filled speedometers??
  468. building a smal 177l blower motor
  469. Merc Blue Paint. B8110
  470. crossover hoses
  471. ring gap?
  472. Anyone run the Automotive Crane HI-6 box?
  473. Themostat/crossover questions
  474. Pompano Beach Mechanic
  475. spark plugs
  476. Any Snap-on\Mac dealers?
  477. 496 Ho Exhaust Heat Sensor
  478. Painting a DART INTAKE????
  479. Ramco Fuel Filters
  480. OK, new question :)
  481. Dart Intake...Will it work on my 489?
  482. Water sender question
  483. wont pass 1500 rpms and pops all over the place.
  484. Bigger Blowers. How much gain?
  485. Northstar 6000i Problems
  486. Where to buy new rub rail??
  487. 502 rebuild
  488. 496HO Circulation Pump.
  489. Stock Fuel pump max HP
  490. Bench flowing carbs (How I spent my Saturday)
  491. Wont trim up at speed
  492. What causes gas to turn white?
  493. Cats?
  494. Q-Jet hard starting and stalling at idle
  495. BBC oil pump
  496. Carb HP 500 effect of compression ratio on jetting??
  497. Whipple or Raylar: Problem Free or Not?
  498. OHM reading on plug wires
  499. dead boat, used once. :(
  500. Steering