View Full Version : General Q & A




  1. More HP for 420Hp
  2. Can Not Figure It Out,,Please Help
  3. 502 overheating! Help!!!
  4. What does it cost to freshen up Merc 575's?
  5. tall deck long blocks
  6. Closed Cooling Leaks
  7. Cam Timing Question
  8. Spindle replacement?
  9. 575SCI TPS issues?
  10. Diference Btwn a 3 and a 3a drive?
  11. how long at what rpm
  12. Odd 575SCI and tachometer problem
  13. horsepower happy: How much?
  14. Water in Hydraulic Oil
  15. Did I blow a trans?
  16. Changing gelcoat color?
  17. Who makes this Trim Tab?
  18. Electric Bolster not working
  19. trim cylinder hyd line leaking
  20. alarm going off
  21. Drive Vibration?
  22. 502 Mag EFI vs TBI
  23. 502MPI with low oil pressure
  24. MPI Wire Harness
  25. High Oil Pressure - Help!!!!!!
  26. Will thunderbolt 5 ign. work in a IV??
  27. won't come out of the water
  28. OMC 460 Cobra exhaust risers
  29. Gear change in Bravo??
  30. More Horsepower Please
  31. Whats A Good Rpm Range?
  32. How common are gelcoat cracks in a boat?
  33. Powder Coat Drive ?
  34. question on Merc alarm system
  35. Dart vs Merlin
  36. Oil for 525EFI
  37. I Recommend Teague Marine
  38. Engine modification
  39. Want to swap Bravo III for I or Blackhawk
  40. Check both drives while repairing bad one?
  41. Rebuilding a 28' Apache?!?!?!
  42. Air Pump For 1991 Corsa Mufflers???
  43. Mercruiser EFI
  44. Navigation Equipment Recommendations?
  45. Class Rules for A-Class in mid-1990's?
  46. Mercury 496 Mag HO question
  47. Broken Cavitation Plate
  48. Mild Horsepower
  49. Plumbing a mech fuel presure gage?
  50. Milling heads and notching bores
  51. CMI braided hose question
  52. Engine doesn't start. (454 MAG Stock)
  53. Attention KAAMA drive experts!! Need prop help
  54. Best Drive tow in or out settings
  55. Too small of cam?
  56. bravo1 lower gearcase VS. rock pile...... help
  57. How hard to change low water pickups to regular?
  58. Need 7.4 Long Block
  59. Rebuild or upgrade components 454 HP420???
  60. 502 carb jetting
  61. 502 Long Block $$
  62. Stelling
  63. 502 MPI VST Check
  64. master blaster
  65. LH prop on a RH drive?
  66. Looking for Alpha Inner and Outer Transom assembly and complete Alpha drive
  67. Mirage Vs Mirage Plus.
  68. prop suggestions ?
  69. HP500carb/Max power RPM
  70. Solution for Head Gasket troubles- Blown or N/A
  71. Oildyne pumps
  72. weber carb rebuild?
  73. where do you guys buy parts for a tune up?
  74. Room at Cumberland for Poker Run
  75. Fooling the computer...fuel & water temp?
  76. 04 29 fountain 575 blown xr is it just me
  77. need 2x V6 or HP modules for ThunderB IV
  78. Salvaging My Sunk Boat- What Should I Save?
  79. clever props
  80. need help finding the right prop
  81. AFR heads: Anyone else interested in buying?
  82. Crusader 502?
  83. Propeller Advise 292 Formula
  84. Fed up with Dominator, any ideas on where I can send it ?
  85. Supercharged Engines of LOTO Shootout
  86. Low water pick up with a nose cone... How about a screen?
  87. Bravo from TRS conversion, What is needed?
  88. Water pressure increased... Help.
  89. #4 cylinder failed 3 times in 3 rebuilds on 502zz
  90. MerCruiser Rev Limiter?
  91. 496 block, What head will fit.
  92. good luck to our friends in Florida
  93. HP500 carbs on a 450HP/454vortec JETS??
  94. zz 502
  95. Houstonprop help, I just smoked my prop
  96. The advantage and disantvantage of mounting engines close
  97. Bending water supply hose
  98. Idle step down kits
  99. Mercruiser 7.4L Harmonic Balancer ??
  100. can I run without flappers in y pipe with crane cam?
  101. TRS Drive Fluid
  102. Bravo XR stuck in FWD??
  103. Has anybody flat spotted roller lifters w/synthetic oil?
  104. How wide is the old style 2.5 cowling
  105. Murphey's Law,oil rings don't fit!!!!!!!!!!!
  106. Status of Shoreline Trailers
  107. Pfaff or Teague or ?
  108. where are flappers located in y pipe?
  109. HELP...One motor burning alot more fuel???
  110. What is oil pan capacity on Mercury Bulldog?
  111. how to tell top ring with NO instructions??
  112. what would a starter tooth sound like?
  113. High HP engines stalling when placed in gear.
  114. speedmaster 3
  115. Popping through the exhaust
  116. This winter's project
  117. 600 lbs less, almost same speed.
  118. stumped on rattle?
  119. Reversion (again)
  120. 502 EFI dying after reaching warmup temps
  121. converting from a bravo1 to a xz
  122. HP500 (carb) Exhaust
  123. supercooler
  124. Who has the BEST dyno?
  125. Transom Mounted 1 1/4 Pickup (pipe)
  126. What Drive 850 HP?
  127. Looking for Upholstery in Houston, Tx
  128. Can anyone help me find a Merc part # f/ 575SCI part?
  129. Dual water pickup with high x demension?
  130. Sending Units
  131. Oil by pass valve GenVI
  132. fair price for m3 prochargers???
  133. Yet another trailer brake thread....
  134. Mpi 502
  135. superchiller for 525sc
  136. Bravo hesitation when shifting into gear????
  137. Clean-up Special
  138. KILL (barnicle)BILL?
  139. Bent Crank ??
  140. Can't get the friggin ink of my sunpad!!!
  141. F/S Bravo 1 24P Prop
  142. Engine remove and replace
  143. Help Crane Cam.what Is It?
  144. Went 96.2 and blew the outdrive
  145. What actually happend when I reversed oil hoses??
  146. Tach Problem
  147. Gimbal Bell Housing Repair....Opinions !
  148. hot off the Mill iol cooler mtg brkts
  149. What props work best on TRS's?
  150. #6 prop loosens
  151. WOT Speed and RPM Loss
  152. Custom Electronic Panels
  153. Drives - Paint or Powder Coat?
  154. Still up in the air about heads
  155. Remote Oil Filter HELP
  156. 500efi spare parts??
  157. Pro's vs Con's...Conventional vs Synthetic
  158. EFI Gueru's
  159. Bravo 1 drive oil change procedure
  160. Top Gun transome angle
  161. Prop advice/5 blade
  162. Rebuilt Engine Help Needed
  163. Mounting of power steering cooler
  164. Anyone ever shorten a flame arrester?
  165. cam choice?
  166. amazing salt vs fresh
  167. speedmaster prop diameter?
  168. x dimension on twins
  169. OK! Ok! Ok!
  170. I need the wirring diagram for a gps speedometer
  171. Mariner Optimax 150 to 175 Upgrade.
  172. need a ZZ502 camshaft.Part#12366543
  173. Repairing Gel coat????????????????????
  174. 502/500hp Through Prop exhaust
  175. Installing MSD Ign.
  176. Guage and supplier of Marine grade wire
  177. Correct prop ?
  178. TRS to Bravo Conversion
  179. Seeking Spare Ignition Module
  180. Procharger pullies
  181. 500HP carb clone
  182. Dirty Drive Oil
  183. Overheating problem
  184. engine pre oiling systems
  185. Needs some help here guys.....
  186. 525sc cam specs
  187. Gaffrig starter lockout switch where...
  188. Carrera 24 fuel tank/removal issue.
  189. MSD high vibration coil
  190. 28 Profile Cat
  191. More HP for HP 500
  192. pro charged 502 mpi w/high oil temp
  193. Lots to Learn!
  194. 496 still poppin at idle????
  195. Merc Silent Choice Problem
  196. Oil Temps / Pan or Cooler?
  197. Cams and Desktop Dyno
  198. HP 500 Missfire and Sputturing
  199. Gil Exhaust Air Pump-Circa 1994?
  200. 708-cubic-inch, all-aluminum engine for marine use
  201. Corsa Captains Call
  202. Houston Prop?
  203. Have Twins And Ya Loose One ?
  204. Converting Wet To Dry Headers
  205. 502 Mag cam change?
  206. TRS Parts
  207. Motor Running Hot...Still.. Circulating Pump?
  208. Can I run my CMI tube top headers dry?
  209. Oil Filter Study
  210. Quick and Quiet too Loud
  211. good outdrive shop around CT/LONG ISLAND area?
  212. Trailer won't back up . . .
  213. Charging system??
  214. Motor Overheated, will a loose hose clamp cause this?
  215. Now What?
  216. Water Circulating Pump--How do I Test
  217. Water pressure gauge conversion to elec.
  218. Bravo XR's?
  219. SC600, PFM,Superchiller kit, wanted
  220. Has anyone changed out a race fairing ...
  221. Add On Hydraulic Steering?
  222. desperately seeking Gen VI flywheel for cast crank 454/502
  223. oil pres. issue, advise needed
  224. Transporting your boats
  225. stupid question
  226. changing throttle/shifter controls
  227. Oil Thermostat
  228. 500 EFI Modifications ???
  229. Need help in determining if this 377 Cubic inch will work in boat
  230. bravo gimbal bearing removal
  231. How Hard Can It Be?
  232. Raylar Upgrade
  233. Engine Knock ...
  234. Paging Glassdave....
  235. Swimplatform options
  236. Motor running too COLD?!
  237. Sonic Cavitation
  238. Prop Questions and lift
  239. Fuel gauge quit working....
  240. 327 to 355/383 ???
  241. How accurate is this ?
  242. Whats the next step
  243. Drop Down Bolsters
  244. Driver Bolster blows fuse
  245. Pair Of Used 25p Mirage Props For Sale
  246. "Newbie" salt water flush question
  247. #1 Alpha Impeller Installation...And Now No Forward
  248. Prop Advice. ,,,,,,,please
  249. mefi 3
  250. What size prop????
  251. Merc Sterndrive failure - Alpha One
  252. 496 HO compatibility with 1989 454 Mag
  253. Bypass Valve
  254. X dimension?
  255. understanding prop pitch?
  256. How do I get ~450hp out of Merc 454 -95?
  257. 40 seconds to get out the hole
  258. plug wire looms
  259. Extension Boxes with a Pad Bottom, Notch Transom
  260. 1,50 to 1,36 with twin Setup ??
  261. I Need Capts. Call
  262. 42' Tiger with 1,000 HP Motors
  263. Big BLock Chevy water pressure?
  264. 502 mag compression test
  265. alpha cutout microswitch
  266. Port Motor Won't Rev Past 2K RPM?
  267. Mercury Racing Remote Oil Filter
  268. How much oil?
  269. Need Advice On Fuel Pump Install
  270. Need a Gel Coat / Fiberglass Repair Recomendation
  271. Oil temps.
  272. Bravo Rotation
  273. Hydraulic Steering??
  274. New Toll Free Number
  275. Bravo bell housing support bushing
  276. Paging RumRunner! Carb tech
  277. Pre-labor Day Special
  278. Alignment
  279. 454 Won't idle???
  280. Tachometer problems??
  281. Oil Cooler Flow Direction
  282. Oil problems
  283. which prop on 31 warlock cat
  284. Stereo Amp??
  285. adjusting bravo I indicators ...
  286. hard shifting bravo one
  287. Speedmaster ?
  288. Recomended way to remove props on Speedmaster's?
  289. slip factor after labbing
  290. Alarm Sounding
  291. distributors FOR 454 HO'S
  292. Help Merc Oil thermostatic Bypass
  293. Miss/Tapping Noise @ 1100 RPM
  294. Sucked up Sand, now what
  295. holley or quadrojet
  296. Exhaust chirp
  297. help a dummy
  298. 496 h.o.
  299. New 525EFI, no crank - HELP!?!?!
  300. Turning a 502 Mag EFI into a HP EFI
  301. Weld on new skeg or replace lower gearcase?
  302. 500HP Carb Cap and Rotor
  303. Got a little bit of a weird one, at least to me
  304. Engine lifetime
  305. This is not SPAM, just looking for an opinion
  306. trim cylinder
  307. hp425 specs
  308. Best batteries for big systems
  309. SSM V drive
  310. hawk 40
  311. One manifold running warmer than the other
  312. warning beeper
  313. What thermostat housing is this?
  314. 500 hp ,,,prop rotation
  315. Extra Battery
  316. Trim Question?????
  317. What camshaft
  318. trs hp capabilities
  319. cast versus plastic water pump housing??
  320. Help, loosing HP above 4K RPM intermittently
  321. Serpentine Belt Help
  322. Interesting oil change challenge
  323. Electric over hydraulic brakes???!!!
  324. Trailer Lug Nut Torque?
  325. Header bolts
  326. please help with prop pitch on bL Hawk drive
  327. Rookie Fiberglass Work
  328. Trim pump and bypass pressure
  329. Speed,Speed, and More Speed!!
  330. Cooling System Question--Fresh Water System
  331. Eagle Rotating Assembly
  332. Where is the $/HP Sweet Spot?
  333. I always liked fuel injection
  334. microwaves
  335. 496HO and the Whipple….
  336. 502 Efi Flame Arrestor
  337. MOBIL 1 OIL FILTER for 502 efi?
  338. best method for bleeding trailer brakes?
  339. Drive trim indicator cable
  340. 2003 500 EFI Problem...
  341. cooling system - steam and possible debris?
  342. Austin, TX Mechanic
  343. Rigging
  344. Merc 454 Mag to Volvo 8.1
  345. Twin HP 525 RPM differences
  346. Using trailer switch to trim up?
  347. Delco voyager distrib. connections?tach?
  348. High Pitch Whine in outdrive
  349. how to remove old window tint?
  350. Snufflers
  351. Endplay in an Alpha drive prop shaft
  352. 1994 350 Magnum durability
  353. Trim Cylinder Help
  354. 33 Outlaw Power
  355. 525sc valve job
  356. Priming the raw water pump
  357. Upholstered Dash?
  358. Dash pad? (Formula)
  359. Max RPM for a 300hp Merc 350 Mag Horizon?
  360. Drive temp question?????
  361. Alternator woes...
  362. oil pressure switch/electric choke
  363. XR Prop Shaft Thread Size
  364. Rev Limiter Bypass harness
  365. Power valves for Holley carbs
  366. Kaama Question
  367. Clack, clack, clack...
  368. 540 bulldog will not start
  369. Snapped Timing Chain?
  370. Fuel Pressure 502mpi will not got above 30psi
  371. Bravo 1 Upper gears split? Why? What can be done?
  372. Fix for leaking fender...
  373. ? About Upholstery
  374. Oil Temp Gauge...foggy
  375. Blower ?
  376. Am I going to need new batteries??
  377. Need TRS transom parts
  378. Best price for starter?
  379. Prop ?: Can this be fixed?
  380. Tailer GVWR Question?
  381. supercharged 525s
  382. Oil Temperature going to 240
  383. Spark plugs 502 MAG MPI
  384. Wheres The Parts #'s?
  385. sync gauge not working
  386. salvage parts
  387. Merc 502 MPI Tach bounce
  388. Konrad Vs. Bravo/Imco SC?
  389. Stroking a 454 Mag 360 hp advice
  390. GEN V head used on MarkIV-water in oil
  391. Time for rebuild?
  392. Getting the jetting right -500hp - 454
  393. Push button ignition switches
  394. Starter for a 540
  395. Best product for gel coat
  396. Leaking lower unit?
  397. Raw Water Cooling
  398. Peanut port 454 heads...How much power?
  399. Speedy 3's and 3A's
  400. Stereo / Amp / Battery / Voltage Q?
  401. How much power for a Bravo 1?
  402. 7.4 MPI (need more speed )
  403. propeller questions,,,
  404. Is this way off?
  405. Compression numbers for a 60HP Mercury Bigfoot?
  406. Engine getting hot
  407. louder exhaust
  408. Determining Drive Ratio --- Again
  409. what pistons to buy? 454 mag
  410. how much trim?
  411. i have always wonder'd
  412. Prop slip #'s
  413. pilot bushings for crashboxes?
  414. Same old Prop Question
  415. HEI Distributor mech.advance,How much???
  416. XR drive 1.36 vs 1.50 ratio
  417. What t-bolt module do I have
  418. 7.4 MPI Procharger ?
  419. Cutting 3" from VHF antenna?
  420. Leak Down Test
  421. Anti-siphon Valve, Where Is It?
  422. Water in oil...loss of rpm...HELP!!
  423. loose pivot pin on Bravo 1?
  424. 29 pitch Mirage Plus RH wanted
  425. Need Help with Ford Transmission
  426. Need more rpm from Hydromotives....Pitch change? Lab Finish?
  427. power steering noise
  428. Does Drive ratio/prop pitch affect heel to port side?
  429. Figure This
  430. Need advice on adding a second battery
  431. Fuel filter part number? Merc 575SCI
  432. Battery jumper boxes
  433. vacuum noise-500 EFI's
  434. donzi 500 hp prop selection
  435. Bravo creeps up
  436. Can't Get Power
  437. bravo 1 getting hot?
  438. overheating 502
  439. will this motor work for a supercharger
  440. Guage Problem
  441. Advice needed on Prop selection
  442. 502 efi plugs? Which ones?
  443. Problems arising from restricted exhaust
  444. hp500efi rev limiter
  445. stumped
  446. question
  447. Breslin Header Bolts
  448. Max HP thru prop exhaust
  449. Mirage Plus/Bravo 1 to Hydromotive change
  450. transom shower help
  451. Drive Rumble
  452. What are concerns over low vacuum pressure?
  453. Backpressure on a 502 mag efi
  454. Bravo 1 to Blackhawk?
  455. 420-425 cam?
  456. Bravo 3 Drive Shower
  457. outboard allignment
  458. Bravo 1 wont go up while going high speed
  459. Need top speed
  460. Higher oil temps on starboard engine...thoughts?
  461. How to replace prop seals on 50 Merc. OB.
  462. 215E Merc Transmission Actuator
  463. Nose cone adhesive
  464. 500EFI - Help Please
  465. Excessive steaming
  466. 28 sonic speed
  467. Rev Limiter Retrofit
  468. High volume oil pumps
  469. 28 Daytona and Tunnel Tab
  470. oil pressure problem 502mag mpi 2000
  471. Engine gurus!!!!!!!!!!
  472. Bravo Shift Cable Tools
  473. Ignition timing small block chevy
  474. Will paint stick to teak?
  475. Help - HP500 Backfire - Brand new
  476. federal mogul high volume oil pump bypass spring presssure
  477. Awlgrip Quote?
  478. What octane fuel for the motors?
  479. articfriends
  480. overheats at startup/vent,then OK???
  481. Merc fuel pumps, good?
  482. Manifold Question...
  483. 496 water inversion
  484. TRS mechanic may have made BIG Mistake--can anyone help?
  485. New Gm 454 Ho Motor Advice
  486. Does color sanding really work?
  487. Mercury Racing HP500 C carb jetting
  488. Lesson learned
  489. How Long Will My Bravo 1 Last?
  490. Air Flow Research Heads
  491. Prop Shop Question Damaged prop
  492. Baja 275 What Should It Do? Mph
  493. Trim Pump oil
  494. Outdrive trim pumps
  495. anyone use seastar hydraulic steering
  496. Need top speed
  497. Volvo-Penta and Merc
  498. Rated HP vs. Dyno HP???
  499. Imco's and Corrosion
  500. Whipple