View Full Version : General Q & A




  1. 502 Water pump impellar?
  2. OK Time to prop this boat, Help.
  3. motor change - what works?
  4. Flame Arrestors
  5. Low {er} oil pressure ?
  6. Speedo Pickup?? Which ones last?
  7. wet exhaust tubing
  8. Blowers and Thermostats
  9. "HOW TO" adjust EFI IAC & TPS -Interested???
  10. speaker ???'s
  11. M3 or M4 carbed procharger needed
  12. prop question
  13. Kiekhaefer Controls Safety Switch
  14. Water temp freeks out???
  15. Speaker Grill Madness
  16. Fresh Water Pump
  17. replacing floor in a cat.
  18. EGT with Prochargers/Whipples
  19. Alignment Tool-Where to buy?
  20. 496 Sea Water Pump
  21. adding mph = frustration
  22. Thanks bobby danials
  23. Rev limiter suggestions for T-bolt 4?
  24. Hole in thermostat??
  25. Small block Ford performance exhaust manifold
  26. Kamma-Lost a prop blade? Need advice
  27. 502 Heat Exchanger End cap blown off,help.
  28. What's wrong with my boat?
  29. Bound up shift linkage
  30. Break in for rebuilt motors?
  31. I need your opinion on gimble repairs
  32. Muff's for Bravo 1 low water pick up?
  33. Anybody HAve any alpha intake grilles laying around?
  34. Wrong oil pressure sender?? Gaffrig gauge...
  35. Carb trouble
  36. MSD wire harness?
  37. went from a 22 Velocity(fast&nimble) to a 26 Velocity (slow&lazy
  38. Still leakin oil!!!
  39. Tailstock/engine allignment question?
  40. Looking for exploded diagram on Mercuiserparts .com????
  41. Water Injection ,,good Kits
  42. Bravo 1 tech question
  43. Bravo 1 tech question
  44. IMCO Shortie on a 29 Fountain
  45. Attn: Moderator - need to post a picture
  46. bravo 1contra rotation
  47. Valve Covers for 1071 blowers
  48. Cat Cranks??
  49. internal exhaust flappers?
  50. depth gauge works 1 min. goes to 1.5 and stays there?
  51. Deep sounder
  52. What Brand Supercharger?
  53. Speedometer pitot mounting location.
  54. Refilling compass.
  55. square bore holly on spread bore intake?
  56. Adjusting Valves
  57. steering parts
  58. 496 wot miss-update, solved! Thanks Dixie Doug.
  59. Tuning a Holley 800 mech sec
  60. Reading an Advance timing light.
  61. high water pressure
  62. hydraulic bolsters not working,,
  63. Distributor won`t advance.
  64. water cirrculating pump drive question?
  65. Donzi Z21 What Prop??
  66. 87 Baja Force 280 Which Prop and What RPM.
  67. 496 on a budget?
  68. Tabs on Cats
  69. Looking for Yamaha OB dealer or parts website in North Jersey
  70. Shop in mid-west .. need whipple work.
  71. K&N filter and Jetting etc.
  72. Oliver parabolic rods?
  73. Black Soot
  74. exhaust help
  75. Oil an water mixing in 502/502 gm BB
  76. Vibration when in gear
  77. Water Pump Runs - No water comes out of Sink??
  78. Changing spark plugs and wires?
  79. Twin Promax 300 - how close?
  80. Scarab 1
  81. My boat is taking on water
  82. Carpet?????? Where to find
  83. 502.... max rpms?
  84. Oppinions please! Changing CG of boat while underway?
  85. Fuel Pump??
  86. Timming Help on 7.4L 330
  87. Truck people, braking question
  88. Air Compressor question
  89. how to set drive toe in/toe out?
  90. Weber Crabs Again
  91. Stroker pans.
  92. HELP,engine hoist?
  93. Break in on new Bravo XZ?
  94. Gauges...weird..weird
  95. SSM IV vs. SSM V ?
  96. Drive shaft questions
  97. Trim Switch help??
  98. 502 MPI Quiz question!
  99. Merc Plastic Dip sticks?
  100. prop question bravo1 vs mirage plus?
  101. how to tell alpha gen 1 from gen 2
  102. formula for calculating valve overlap?
  103. Engine size vs reversion.
  104. How can you tell Kevlar from fiberglass
  105. How long (Chain on Anchor)
  106. Need advice on buying a cam for my 454 mercruiser
  107. Motor never warms up. Advice wanted
  108. Evercoat gelcoat repare
  109. Bad 6AL Box??
  110. Need Help
  111. 496 under water !!!
  112. GD Seal!!!!
  113. How to add fluid to Gaffrig Monster liquid speedo
  114. Vacumn over hydraulic brakes
  115. Thanks OSO folks for the Tech Advice on the Quad Rotor - **VIDEO **
  116. Holley Electric Chokes
  117. need help from the pros / lifter hight V's valve geometry
  118. trs exhaust diverters
  119. Help... Raw water pump leak
  120. seized lifter , Why
  121. Corrosion Protection
  122. 100 mph or bust it
  123. sticking silent choice
  124. Trimming Twin Engines?
  125. Comp Extreme Roller Info
  126. Oil pressure sensor locations
  127. I bought a 1/2" spacer for my drive
  128. Dennis Moore?? Where are you!!
  129. Engine Clatter\Tapping Port on 350 Mercruiser??
  130. How much drive oil?
  131. Question about drive rotation and friction
  132. Engine Mounting Bolts?
  133. Bottom paint? yes or no
  134. Dist Cap for a Merc HP425
  135. holley carb adjustment
  136. Prop Question, diameter & pitch...
  137. What should timing be set at on a 84 330 Mercruiser
  138. Cam selection
  139. Imco Vertical shafts
  140. Roca Speed rails & what it will take to see 80 mph
  141. Holley help
  142. plugging old exhaust holes??
  143. blown 520 idea...need roller cam advice
  144. Holley Alcohol Jets?
  145. trs ?
  146. Peak Power on 330 Mercruiser
  147. Do I need Drive Showers on TRS
  148. SBC head choice
  149. HP500EFI running rich?
  150. 496 Mag HO water circ. problem
  151. Trs question
  152. Best Bravo Drives
  153. Removing thermostats on carburated Mercury Outboard
  154. Warning Buzzers
  155. Help with Accelerator Pump Cam
  156. New 500 Efi Throttle Body Upgrade
  157. Prop Help PLease!
  158. Trim Information
  159. Question on exhaust flappers?
  160. New Valvoline "Not streer legal" synth. oil
  161. multiple batteries???
  162. Advice needed on Cam and Silent Choice
  163. Aluminum Body Holley 750's
  164. Borg Warner Velvet Drive Problem
  165. Help..Oil Cooler Question
  166. Bravo1 Lower Unit - Torque Spec
  167. Where do I mount depthfinder?
  168. Relocating Drive Fill Bottles
  169. When will boost change
  170. Removing Vinyl Graphics
  171. 1st trip = tow Kinda Long sorry...
  172. Thanks Birdog (why OSO works)
  173. Oil Pressure ????
  174. My Dilema
  175. 454 mAG efi TWINS-ecm OR efi PROBLEM??
  176. EMI manifolds on 310 efi
  177. Corsa Solenoids
  178. burning clutches?
  179. New prop - different thrust washer ?
  180. Th OD quit in my 700r4 D is ok should I care
  181. Where to locate the stock water temp & pres. senders in 502MPI?
  182. Help, 500HP Carb Ignition Module needed
  183. gimble bearing
  184. Time to decide on which oil to run this year
  185. King Demon Carbs.
  186. Oil Leak From Hell...
  187. Trailor Brakes/Box in truck
  188. Boat upkeep
  189. "92" Webber carb? 7.4
  190. 500EFI runs then stops
  191. Twin Disc Transmission
  192. Best Oil Filters??
  193. Riser to tailpipe drop length?
  194. Mercruiser dual battery hookup recommendations
  195. Why no supercharged diesels
  196. distributor gear selection/material
  197. Bravo Input Shaft Seal Change
  198. '98 454 Mag MPI - Roller Rocker install
  199. wet sanding question
  200. bolt on timing pointer for 8in. damper?
  201. Need some Help with a Leaky Bearing Seal
  202. more power!!
  203. Milky Oil....bad riser seals?
  204. Follow up to Water in oil, now silver specks
  205. Help!! Better flowing heads and a better intake and less speed!!
  206. quick alpha question
  207. Help needed wiring in MSD 6AL boxes
  208. Best Place to Buy CMI's
  209. Looking for Mercruiser carb. paint
  210. 21ft scarab porpoising
  211. hi-temp on engine
  212. B&M efi hat
  213. Wiring question?
  214. Which gear oil for Kaama drives?
  215. Motor will not turn over
  216. alpha gear ratio ?
  217. Exhaust Help
  218. Larger Shooter or Bigger Cam which first
  219. Gaffrig Monster Tach Light Bulb????
  220. hp 500 mph-prop
  221. What is the best way to check plugs?
  222. Using Holley on SBC
  223. Drew Shotgun Silencer Users!
  224. Leaky pully bearing on my Whipple
  225. gas quality for initial start up?
  226. ignition timing for initial start up?
  227. Initial Start-up on hose
  228. Float Level Adjustment Holly 1050
  229. Need Help, Bent Intake Valve, Why
  230. Too Much Advance?
  231. alpha drive question( please help)
  232. Back fires and Stumbles
  233. Exhaust....
  234. flowscan or another fuel monitoring system
  235. upholstery question
  236. My Motors PART 2
  237. msd 6al box, tach don't work!!!!
  238. msd 6al box, tack don't work!!!!
  239. pro-charger carb box question
  240. 4.3/Alpha help?
  241. Marine Air Conditioning Problem?
  242. York Propeller
  243. Intake and carb setup on a 502?
  244. Fuel Pump
  245. 2much exhaust heat! what does it mean?
  246. Starting problems
  247. closed cooling
  248. Cam Break in ??? Need some advice
  249. CMI vs HP500 exhaust
  250. MSD Marine Box with HP 500 EFI
  251. Small Block Chevy Stroke Question
  252. Stereo junkies,
  253. Compression ratio?
  254. Any magneto experts out there
  255. How do I ship an engine?
  256. XR Drive mid pickups with low water pressure
  257. Scarab construction
  258. Question - How do you set up the distributor with #1 Cylinder?
  259. Unanswerable question?
  260. 1998 502efi and 454 mag efi rev limit?
  261. Broken Valve Spring and More
  262. now it's faster and more RPM's?
  263. 460 ford to bravo
  264. WARNING Napa "no crimp" terminals
  265. Merc/Sierra Impeller Part #
  266. Water temp low????
  267. 1, 2, all, off battery switches....how to correctly hook up the batteries??
  268. MSD 6AL Ignition help
  269. Recommended Dyno Shop In Charlotte Nc.??
  270. drive height for 2000 38 fountain
  271. Looking for water cross overs.
  272. Batt switch and Alternators
  273. Important info if you run Rotella Synthetic. They have a bad batch.
  274. Mirage Props with stenciling
  275. loss of fuel pressure at WOT
  276. Sportmaster clean up
  277. spare tire mount?
  278. gelcoat chip in bottom
  279. Remote Oil filter mount advice needed
  280. Exhaust manifold to riser seal
  281. Holley Carb.Fuel Pump vent hose location?
  282. how much Horsepower?
  283. Question on manifolds temp 1999 502
  284. Overheating 454
  285. revolution marine exhaust ?
  286. Stainless strain relief bushing needed
  287. Mirage 25 VS Mirage plus 25 RPM
  288. carb
  289. Whipple Problem
  290. 454 budget build - What would you do?
  291. Flushing,exhaust question
  292. steering fluid leak
  293. Dual Gauges
  294. prop swap
  295. Mechanical fuel pump-alternative to merc?
  296. Water in the oil first, now silver specks.
  297. Vinyl repair??????
  298. 502mpi coughs, then dies
  299. Knock Sensor testing??
  300. audio warning alarm question
  301. Bravo one oil consumption???
  302. Tunnel tab
  303. Temp Gauge problems again!!
  304. Bennitt Ditgital Tab Indicators
  305. Spark Plug gap , AC Delco Rapid Fire 1
  306. Bought a new laptop, need mapping software to connect GPS
  307. crane box?
  308. 502 fuel pump
  309. gps's used by apba
  310. Paging Houston Props
  311. Donzi X-18
  312. Port Engine wont turn over
  313. Crazy Okies - 1,100 HP - 23' Tunnel
  314. supercharged holley carb?
  315. prop splines,adapter?
  316. Uh oh... water in the oil
  317. msd 6m-2 wiring question
  318. 496 HO stalling????
  319. Explain to me Valve float...
  320. Valve lash?
  321. Bravo 1 steering hard
  322. Ranking Hyd. Steering Systems
  323. Lowering compression for blowers
  324. Rplacement Sportmaster's Lowers For Xr Drives
  325. Replacement Sportmaster For Xr Drives
  326. Sea Swirl Pump
  327. Intake Crossover
  328. Bravo Drive oil Capacity
  329. Help with new Holley 800
  330. Desperatly looking for part in Dallas, TX
  331. Rebuilding/Tuning Holley 4010
  332. my motors
  333. slow 42' Fountain Props???
  334. Loaded ? on Bravo 1 props
  335. mpi scan tool??
  336. Water circulation and quieter exhaust??
  337. Adding a rev-limiter
  338. carb, fuel question
  339. RH Bravo Shifter Question
  340. Holley Carbs
  341. Broken Skeg On Drive
  342. looking for the specs for a 496
  343. Best way to mount oil cooler
  344. #3ssm or 5ssm
  345. Bravo XR question
  346. poly planar cd player
  347. extension box imco vs. land & sea
  348. Shop manual for HP500?
  349. A question about camshaft assembly lube?
  350. Float setting on Edelbrocks
  351. Life span\Hours on a 454Mag?
  352. clutch slipping?
  353. 350 Magnum (carb) questions
  354. water pressure gauge
  355. 502 & 496 heads . will they fit on the same block
  356. What water temp on 1999 502MAG
  357. 496 & 502 exhaust , are they the same???
  358. High water pressure-----Need help!
  359. gill exhaust
  360. Bravo lower unit
  361. Need wiring diagrams. Can anybody help?
  362. Help Carb Guys!!
  363. Throttle Knob - Trim ?
  364. Power steering pump
  365. Engine Rebuild?
  366. help...jetting Holly 830 CFM annular carbs
  367. MERC 2.4 Carb & 6 years
  368. calculating top speed with prop calculator?
  369. Electric fuel pump
  370. injection to carb
  371. what gains from this combination?
  372. Small Block performance upgrade suggestions?
  373. Tailstock bearing lubrication?
  374. Oil & Filters for 496 HO's
  375. Sea Water Pump Service - need advice
  376. Thermostat Replacement
  377. 496 car motor
  378. Fuel Pressure On Holly Carb
  379. 496HO, high rpm miss ????Any ideas?
  380. Hynautic Steering Question
  381. Got my plugs changed!
  382. Cylinder Head Gurus-Question?
  383. Holley 830cfm
  384. baja,s how fast
  385. turbo charger design
  386. Brake bleeding question
  387. Ignition cutout... hard wave?
  388. Help Trs Outdrive
  389. Mercruiser SCANNER...Where can I buy one?
  390. MPI loading up, runs like crap...HELP!
  391. Morse control cable code
  392. burning rubber/plastic smell
  393. holley 750?
  394. WPM Steering and latham cap??
  395. spring startup
  396. Need tech. help 96 tahoe
  397. Crack at back of boat
  398. Newer boat purchse? Nose Cone Installed!!!
  399. Setting base timing on 454 EFI
  400. Imco External Steering install
  401. Thanks Houston Prop
  402. OT: Rancho Shocks: Anyone use them ?
  403. More questions on IAC's
  404. wind deflectors
  405. extention box
  406. Kaama Prop Queation
  407. Carb Size for 454 Mag
  408. engine just shuts down?
  409. Blower fastener torque, motor "rolling, rich"
  410. Gimble hinge pins?
  411. Carb Spacers, anyone using them?
  412. Bravo Coupler Torque
  413. oil pressure?
  414. sbc water pump backplate gasket?
  415. x dimentions
  416. Hydraulic Steering Install
  417. Bravo one torque
  418. 32 Fever Proppage - Factory Stock
  419. Fountain Whiteout Powdercoat
  420. silent choice?
  421. How much RPM drop from out to in gear?
  422. Bobby Daniels...thanks for the parts!
  423. Marine Assault Quad Rotor 540 Project
  424. Promax 300 w/SVS & High Flow Reed Plate = preliminary results
  425. Burining oil...Best place to buy new motor?
  426. Gaffrig Tach misread
  427. Anybody know of a good place to buy Holley marine carbs?
  428. Still Having problems with the PROBLEM CHILD-Lean/miss/stumble/backfire!!!!
  429. tabs
  430. I Lost a Bearing Buddy Again....Help!!!
  431. Need help w/ gauges
  432. Magnum ignition with 525SC
  433. cam advice
  434. Quad Whipple Belt Help Please
  435. Ignition advance and plugs for 383
  436. Hydromotive Questions / Issues?
  437. Boat vibrates at idle when exhaust is open
  438. alpha gen 1 VS. alpha gen 2
  439. Cam degree Question
  440. new boat purchase advice? kinda long..
  441. Merc spline grease on propshaft?
  442. TRW Pistons
  443. OK, finally...
  444. "Proper" kill switch wiring
  445. engine serial numbers
  446. I am finally getting somewhere....
  447. Do I need an oil cooler?
  448. weiand supercharger
  449. Backfire thru carb
  450. water temp cut off switch
  451. Yamaha sterndrives
  452. Drive Rotation
  453. Help with oil reading of 496HO
  454. stock merc. 502efi manifolds mods.?
  455. drive indicator actuator???
  456. morse cables on bravo shift bracket???
  457. Out drive oil foaming
  458. one piece rubber oil pan gaskets?
  459. msd box
  460. Correct Fuel Pressure for 377 Scorpion
  461. Rev limiter??
  462. Fuel consumption, gph question
  463. 1:36 or 1:50 ? 31 Scarab
  464. Gen VI Head Bolts
  465. Tip work in Houston...
  466. Prop Question
  467. Seeking Prop Experts - advise needed
  468. Trim on Throttle??
  469. Centrifugal Guys; Question…
  470. Timing ?? for EFI Whipple users
  471. K-plane actuator install question
  472. Ignition supervision
  473. Knocking noise, can't figure it out
  474. Depth finder sender question!
  475. oil pump to pan clearance?
  476. sbc stamped oil pan rubber end gaskets
  477. prop 35 non step lightning
  478. K-plane sender reading
  479. Trim Cylinders?
  480. Hydrolic Steering Bracket?
  481. 25' four winns vista speed
  482. No. 1 wire position on distributor cap
  483. lunati web site
  484. are the MarkIV and Gen V 454 dipstick tubes interchangeable?
  485. Drive shower pickup?
  486. Bravo top cap torque?
  487. Drain Problem
  488. bravo bell housing cooling hose tool
  489. Engine swap 6.2 to 496 Mag HO
  490. Gaffrig shifters
  491. Thunder Bolt IV drive gear
  492. Machining tapered shaft
  493. How much oil does a TRS hold
  494. Fountain water drain design question.
  495. manifold ???
  496. Chevy Big Block Water Pump to bypass
  497. 1999 HP500EFI?
  498. low water pressure
  499. PowderCoat or Not?
  500. Does anyone know where to get a used engine block?