View Full Version : General Q & A




  1. HP500 Carb Air Cleaner
  2. more fuel problems
  3. outboard conversion
  4. More 496 bugs, overheat this time!!
  5. Anyone have MSD 6M connectors off bad unit?
  6. 502mpi gn 6 running temp issue
  7. double wall tips
  8. Arenson drive on 27' Daytona
  9. Oil valve relief 500 Efi
  10. 500 hp big block chevy
  11. backfiring through the carburetor???
  12. tune up kit
  13. Cone Clutch and Lube Question
  14. 496 Sputters on take off....
  15. valves
  16. Any 502 MPI Experts?
  17. Fuel pick ups
  18. Looking for person to dyno.
  19. 496 mag shuts off going down the lake
  20. Power Steering Pump Retorfit
  21. Compression test questions
  22. Recommendation for IR temp gun
  23. would this 540 be a good buy?
  24. Fuel injected 525SC
  25. 496 mag buzzer / alarm
  26. alpha / Bravo manifold differences
  27. Fel pro head gaskets BB
  28. Loads up at idle
  29. 454 Mag MPI Horizon?
  30. need a hei distributor for a 94 502 EFI
  31. Will these headers fit?
  32. U.S. Engine Inc.
  33. 540 merc bulldog build?
  34. Bravo Gimbal Ring Maintenance
  35. Camshaft for 350
  36. First Post hello's!
  37. Guys with BOOST, what mech fuel pump??
  38. What water pickup to use?
  39. stainless manifold plumbing ?
  40. log vs center rise exhaust
  41. Street 350 engine
  42. over heating issue and need help....my first poker run this weekend!!!
  43. 496HO Fuel Pump Cross Reference
  44. IMCO Exhaust flaps
  45. Knocking sound when cranking
  46. Procharger idler bracket/ modifications questions
  47. Cam Specs for a 525 EFI
  48. High Fuel Pressure - Carb'd BBC
  49. cheap prop vs expensive prop
  50. 454 Engine missing and cutting out under load HELP PLEASE
  51. low fuel pressure
  52. Is it bad for a boat to sit un used?
  53. 496mag HO problem
  54. New 502 carb woes.
  55. Torque to the port side really bad now..
  56. Hydro vs solid cam
  57. Dual 4's or single on B&M?
  58. Holley 850 help
  59. Mustard tree stain on seat, Help
  60. Muffler help needed
  61. Lowrance Depth Gauge
  62. 96 500 HP Carb Cap and rotor
  63. Correct plug for stock 454 Mag MPI?
  64. What Carb Do I have and need
  65. Speedo Faded on every used boat?
  66. Any idea how this wire shorted out?
  67. trim tabs
  68. VST EFI pumps
  69. whipple pulleys
  70. mirage to mirage plus conversion
  71. what is a good prop slip number ??
  72. Good place to test vacuum on 454 merc?
  73. MSD Pro Billet 8560 problem...
  74. Which prop?
  75. need some marine blower cam help. engine builders inside
  76. impeller and housing
  77. Need some jetting help
  78. Teague Fuel Filter Housing
  79. Bennett hatch actuator
  80. JL Audio 7.7
  81. oil cooler ?s
  82. threw hull pick up what bonding glue to use?
  83. Bravo 1 XR Upper to Bravo 1 Lower
  84. gen 4 heads on gen 6 block can i us stock rockers and push rod
  85. New water/gas separator engine wont start
  86. 7.4 mpi cool fuel
  87. how many hours before rebuild?
  88. Amsoil remote filter head
  89. zz502 - what is the largest bore size without heat problems?
  90. Lifters??
  91. Upgrading TRS Motors
  92. Rob Schooping/htg Motorsports
  93. excessive priming a 454 to start after sitting for weeks ?
  94. Stelling Extension boxes
  95. Neutral safety switch cant find
  96. RPM's have dropped from 4800 to 4200 at full throttle
  97. Flame Arrestor: Stock or K & N
  98. 3 to 4 blade question.
  99. Forgot plug, turns over, won't start?
  100. Trim Control on Throttle?
  101. What fuel for 502EFI MAG?
  102. Spark Plugs
  103. Roller Lifter life
  104. intake manifolds
  105. Aeromotive A1000 sounds like war!
  106. Making a350 a 383
  107. 350 Mag engine miss
  108. Exhaust help
  109. holley jet sizing.... curious what others are running
  110. opinion 383vs454
  111. 598 Engine Build
  112. 525 Fuse
  113. 496 MAG IAC mounting location
  114. Intake/head port mismatch
  115. best oil for 575 sci blowers
  116. Water Blockage in Bravo 1 Lower?
  117. Building 350 MPI any help
  118. Looking for used 27 dayton
  119. 575SCI water in cylinders
  120. Alpha y pipe and block off plate bolts and o ring
  121. Polishing aluminum valve covers, what to use?
  122. Oil-line hookup on my Gen V HP500.
  123. trailer help
  124. New help with a few issues on new motor install...
  125. Risers too hot?
  126. Supercharger help
  127. K Plane and Extensions Box?
  128. Merc prop defect in casting?
  129. 502 efi problem
  130. Loss of speed over 3800 rpm
  131. ignition timing/super charged
  132. After Market Fuel Injections
  133. Battery/Wiring/Switch Question
  134. Exhaust exit help on Baja 226 Sport
  135. 454 mercruiser ex manifolds
  136. MEFI 1 xdf file
  137. Power Steering Dump Cap Replacement
  138. trs drives
  139. Rebuild kit for 9780s carburator.
  140. Powered Stern Light...
  141. Please help! Complicated reversion problem
  142. 525 sc intake manifold
  143. Varnish And S##t In Fuel Tank Cleaning
  144. Ignition timing, idling woes, Opinions of what to trouble shoot?
  145. Use Rev Limiter or Let Carbs Limit Revs?
  146. 502 Stroked to 547 - Oil Cooler Suggestions
  147. Nav light switch is hot
  148. 115v AC wiring help. With diagram
  149. setting cam endplay with cloyes 2 piece timing cover
  150. hydraulic fluid
  151. Adding an oil temperature gauge to a 496
  152. 565bbc numbers
  153. Horsepower vrs. Torque
  154. pros and cons of bravo three
  155. would anyone be able to give me some eyes in clinton, mo
  156. 540
  157. 502 water pump which hose?
  158. Tab Pump Issues
  159. best water pick up for cat stepped hull
  160. Help Water in oil... Alot
  161. Bravo 1.65 gear sets
  162. what cam and prop fot 454
  163. Weak valve spring symptoms?
  164. Prop hitting drive??
  165. Merc 454 carb to 496 HO?
  166. donzi 26
  167. Mercruiser Starter Switches.
  168. 502 Inectors
  169. Weird issue
  170. cam help... 496 bbc
  171. boat not wanting to accelerate off idle formula 242 ls 502 mag
  172. Hallett 300
  173. Mag Vs HO engines
  174. 496ho gremlins strike again
  175. HP500 procharger..how much boost ?
  176. Fuel pressure regulator?
  177. yellow corvette c6
  178. 460 Ford Berkley Jet
  179. 525SC fuel pump part #
  180. Low Hp Air or Exhaust
  181. 2001 28 td daytona
  182. Eickert Oil Pan /oil Pump Set-up
  183. Staggered Engines
  184. 525 Problem
  185. Wiring diagram
  186. Tips or no?
  187. 496 Crank sensor intermittent? no code?
  188. Goto 540 or Tweek out the 489
  189. bravo coupler
  190. 97 bravo one specs
  191. Sea Strainers
  192. 600 sci fuel pressure too high
  193. Anybody Notice?
  194. boat stall
  195. Fuel flow problem. Help!
  196. 502 water pressure
  197. 454 submerged in salt water
  198. Bulldog 420 hp Tempest Sport 32'
  199. need a ecm
  200. trim problem
  201. Trim Probelm
  202. 454 mpi overheating or not????????????????
  203. 496MAG to codes, but wont run W/O
  204. Sand T stake
  205. Diesel Power
  206. ocean marine a/c unit wiring diagram needed please HELP!
  207. 496 MAG HO ECM Mods
  208. Old Ethanol Fuel – Add Fresh or Just Burn it?
  209. Prop washers
  210. Intake and Carb ?
  211. anybody heard of this company or have any experience with them?
  212. 454 mpi overheating
  213. tachometer issues
  214. Gen 4 max bore??
  215. Looking for 502 MPI Roller Lifter Help
  216. E-3 plugs in a 454
  217. Hin Manufacturer Question
  218. 502 hydraulic roller problem??
  219. hotboatjet
  220. Q-jet jetting question on modified Mercruiser
  221. PowerBoat P1 Driveline Torque Sensor Device
  222. Hardin Marine stainless steel sea pump with the cross over
  223. Installing oil coolers on a smallblock alpha, crossover set up
  224. 502MPI - Odd IAC and spark readings
  225. Bravo water pickup hose inside the transom assembly ??
  226. 454 Mag Mpi Issues
  227. edelbrock heads vs peanut port for 454....
  228. 502-454
  229. k-plane trim limit..
  230. Innercooler cores
  231. Engine Guru's - Need help-Take a look
  232. ezstriper , part number please ?
  233. power steering cooler leak?
  234. 525 Efi
  235. Mercruiser 350 Bravo, ignition timing questions
  236. 454 rebuild help please
  237. sea strainers
  238. Engine hatch hinges and removal
  239. 575 upgrade
  240. Bolster pump leaking
  241. Rockers coming loose
  242. donzi zx 28
  243. 350 Sci Verado problems?
  244. Boat darting right randomly
  245. Which Heads for a 496 Stroker
  246. shorepower battery charger shuts off after 24hrs
  247. 502 Overheating --- help
  248. imco or sportmaster lower unit vs xr lower unit
  249. Crack in Sportmaster Lower
  250. Weird metal markings on 300 ProMax
  251. 502MPI - Intermittent Crank, No Start
  252. 500HP max RPM
  253. marine circulating pump versus automotive
  254. Adjustable fuel pressure regulator
  255. short in ignition?
  256. altenaor ?
  257. sunblock stain
  258. 7.4 MPI running rich
  259. Hp 525 Wiring Issue
  260. Engine temp question
  261. 2000 Fountain Battery conection ????
  262. fuel pump
  263. K plane thru hull fitting question
  264. Any empty trailers moving South from the N.E. to S. Florida?
  265. 454 Project Questions
  266. Help with Shift problem
  267. Need Help ASAP
  268. Block Drain Problem
  269. Timing Chain vs Timing Gears
  270. Oil pressure drops to zero
  271. trim tab install
  272. Mercury 525efi ECU question
  273. 350 vs 383
  274. Carb HP500's Question
  275. Found the Problem with Oil out of exh!!
  276. Hp500 Oil Stat
  277. Honda 2000i Generator
  278. IAC Help?
  279. 575 Sci
  280. oil filter change oil pressure loss
  281. Formula 272 SR1...lost steering while running hard
  282. MAG MPI intake manifold options?
  283. Right prop??
  284. 3 wire sensor on 7.4 mercruiser.
  285. Need Help! Alpha Transom Assy. question
  286. Oil coming out of exhaust
  287. vinyl cleaning help.
  288. power steering line pics..
  289. 454 Mag overheated now not running right
  290. Jetting with innercooler
  291. Hydraulic Helm
  292. Looking for a 24'- 27' open fish like this...
  293. Re-powering question
  294. Any tricks to getting AN fittings to seal?
  295. 454 build questions on cam and carb
  296. fuel injection time
  297. Need a New or Low Hour 496
  298. where to order parts for 500efi heads
  299. Procharger crankcase breathing
  300. alt belt length 454
  301. upgrade a 7.4-330hp?
  302. baja 235 force no pulling rpms
  303. Header leaked water into heads
  304. 496 Mag - OIL PSI CKT LO
  305. 496HO - Hard starting - Need help!
  306. 454 mag efi fuel issue?
  307. BBC 2 Bolt main block hp limits?
  308. Sea Water pump hoses..
  309. Stumped????
  310. Trim Indicators
  311. gps speedo question?
  312. 502 Whipple Idle HELP
  313. Formula 370 SS Prop Upgrade
  314. ECM baud rate
  315. Water Passages Blocked??
  316. 600 sci stage 1 and stage 2 kit
  317. hyd steering leak at control valve
  318. Power Steering boiling over..HELP!!
  319. fuel return line ?
  320. E 10 fuel
  321. Mercruiser 350 MPI
  322. 502 carb
  323. Bravo 1 lower unit
  324. 2010 350MAG making ticking noise, lifter or exhaust leak?
  325. water pump for 1000hp
  326. Gen 6 BBC?
  327. 100+ mph boat????
  328. props to buy for a 29' carrera effect
  329. fuel tank return line
  330. Have to Pull engines for new Couplers What should I inspect replace.
  331. ?? Installing Engine
  332. Westerbeke 4.5 question
  333. Please check out my Post in Cigerette Forum "Heres one as I scratch my head"
  334. Old ethanol gas
  335. Hynautic Helm Conversion
  336. Stereo stuff
  337. where to buy stbd mount ps/alt brackets...
  338. 500 EFI Fuel line to 502 MPI Cool Fuel Box
  339. HP 500 Carb'd Cam Upgrade Selection Expert Advice Needed
  340. HP 500 Cam Upgrade Selection Expert Advice Needed
  341. Trouble Bleeding 496HO Cooling System
  342. Leak/Pressure testing headers
  343. Anyway to make Hardin “silent seal” flappers quieter?
  344. trim switch livorsi type throttle
  345. How to hook up a thermostat housing
  346. Mercruiser Rev Limiter?
  347. Dart Pro 1 heads what plugs
  348. CMI headers for small block
  349. Looking for new Steering Setup
  350. outdrive not lowering
  351. what plugs to use?
  352. Picking up a new boat this weekend....
  353. Rebuild what do you guys do??
  354. Ignition trouble 7.4
  355. White Smoke
  356. headliner
  357. Db Help
  358. flush a oil/power steering cooler??
  359. New (old) Cigarette
  360. Procharged or not?
  361. Need oil line diagram
  362. Water in Bilge - Y-Pipe?? Please Help! - Summer Too Short in WI
  363. engines problems
  364. get me to 70...
  365. Oil filter bypass.
  366. 454...is it a HO or not?
  367. 350 riser bypass
  368. 500HP Carb idle & Choke adjustment
  369. Another oil question
  370. What Props should I try for my DCM Mach 22 500 HP??
  371. baja 270 Captain's call problems
  372. alum heads/intake and perf exhaust worth it?
  373. Hatch Lift Switch
  374. Hour Meters
  375. Kiekhaefer Aeromarine Riser
  376. 496 Ho Iac
  377. 525EFI Tech Questions?
  378. Merc Racing 525
  379. Oil pressure question........AGAIN !!!!!
  380. thru hull andf Y pipe question
  381. Wter temp with crossover to low
  382. Cooked starter, solenoid?
  383. alternator upgrade
  384. 496HO Running Rough
  385. 38 Cigarette Racing Dash Board
  386. 700sci ?
  387. Reversion??
  388. 496 whipple problems
  389. BW Trans question
  390. Thumper Cam
  391. Vapor / Air lock Help !! ????
  392. what props for this boat??
  393. Best way to add 02 sensor?
  394. engine heating up past idle
  395. Drive shaft to tight in gimbal bearing?
  396. Think I blew a drive or U-Joint HELP!
  397. Need help fast 502 gear lube bottle connections
  398. Solid roller lifters......
  399. power steering fluid or ATF in stock Merc PS?
  400. 502 or 496 HO
  401. 415HP 454 Build Question
  402. efi to carb??
  403. restarting my whole motor project! need some advice
  404. electric fuel pumps
  405. cam spec,s 370/hp merc
  406. Engine Remote Starter Switch
  407. Timing Advance for GM Vortecs?
  408. HP500 Flame Arrestor Decals
  409. 500 EFI exhaust length required to prevent reversion?
  410. Mercruiser cool fuel question
  411. where can i find exhaust plugs from thru-hubs
  412. Best Intake for a 522BBC
  413. silent choice wiring
  414. Spark Arrestor???
  415. Stock exhaust vs stainless marine exhaust
  416. Another melted exhaust hose
  417. engine shops
  418. carrera cat prop size
  419. 502 Mag MPI HP and TQ Curve
  420. Powersteering Pump Reservoir
  421. Blower Clearance
  422. buying a new oil pump!
  423. Mercruiser 425 gaskets Help!!
  424. Gen VI Mag piston rings?
  425. Breather for oil fill tube....
  426. Removing pully from sea water pump?
  427. Got CMI's?
  428. Need Exhaust Manifolds 350 Mercruiser
  429. oil filter
  430. 525 Bouncing Tach?
  431. starter on hybrid engine combo
  432. Wideband O2 target WOT
  433. alternator/ps hitting cmi headers, what can i do???
  434. Low Oil Pressure on Rebuilt 454
  435. 4 cylinders on one bank fowling out
  436. Raylar "CoolGap" intake manifold
  437. Distributor Cap ?
  438. 454 Merc and a Rough weekend running Offshore
  439. OMC 5.0L exhaust
  440. 572 intake and carb options??
  441. Help Please. 5.7 Alpha One 1990 model Mercruser wiring problem
  442. 500 EFI powersteering pump
  443. Engine Dyno/Tune in Midwest
  444. Stainless Marine 502 MPI risers work on 500 EFIs?
  445. Problems with my #3 Speedmaster
  446. water pressure guage questions
  447. Violent sound and vibration from drive/motor and leak!
  448. Can we post pics on here?
  449. 572 stroker What to do with EFI
  450. Mufflers
  451. fuel pump pressure
  452. mercruiser 10 pin plug extension
  453. 6.2 MX knocking
  454. Valve guide wear
  455. 525efi's WON'T START
  456. Mercruiser Thunderbolt Ignition Question??
  457. Strange fluctuations with trim gauge
  458. Switch problems, please help!
  459. AMC 401 in a boat
  460. fuel pressure issues - pulling my hair out!!
  461. Engine alarm constantly on help 500efi
  462. need xome help - large leak from power steering ram
  463. 496 raw water pump?
  464. would Ls6 heads be good
  465. 5.7 Mercruiser 2005
  466. Electric fuel pump return
  467. fuel pump not getting power on '97 454 MPI
  468. Hard to shift back into nuetral under load.
  469. bravo1 trim not going down
  470. Spark Plug Changes?
  471. Freeze plugged popped!
  472. wheres the neutral safety switch on a bravo setup??
  473. holley fuel lines leaking....
  474. Outboard issue
  475. bleeding hydraulic steering system
  476. bleeding hydraulic steering system
  477. engine hatch on 24 outlaw
  478. manifolds???
  479. What are they worth?
  480. Some Oil Info from the people themselves!
  481. Upgrading to a gen VI 454 what can i use from my IV
  482. Fuel Pressure Required for 454 carbs? my pumps bad?
  483. any SEADOO 951 mechanics ????
  484. Throttles not even
  485. When to tune up
  486. Where to buy 5.7 Longblock?
  487. Soft Wall Exhaust Hose...any experience?
  488. what are drop box asd-8's worth??
  489. throttle stud for holley carb????
  490. 89 454 rebuild
  491. Sea pump HELP..
  492. 525EFI Kill Switch Wiring?
  493. Trim gauge stuck full up
  494. Best prices on smartgraft gauges and acces
  495. Kiekhaefer Controls
  496. cam recommendations for 509 bbc
  497. A Lot Of Questions!! 508 & B&M 250???
  498. Roccard Marine
  499. Engine getting hot...??
  500. intake manifold