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  1. M

    Ignition switch does not shut engine off.

    Twin 1996- 454s EFI Marine Power engines with a ECM . Toggle switch instead of standard key , same function, Mom on ( on ) - On - Off . Swapped switches, same result , not the switch. Wondering what is being killed and will try and back trace it from there . Any suggestions besides that ? I...
  2. M

    2012 4 stroke 60;hp control cable

    Replaced old cables and in process cannot now figure out where the 3rd figure 8 type safety clip goes. Put 1 on top of each stud of shifter and throttle mechanism and now scratching my head.
  3. M

    Reverse rotation

    Have twin inboard 305s. Starboard engine distributor turns counter clockwise and has two sets of plug numbers on cap ,larger sized numbers for normal rotation and smaller for counter.The engine itself turns clockwise when running , I think , as I just discovered this when a no start issue came...
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    Owners manuals

    Maybe the mods could post a sticky at the top with that heading . Then explain to the people that are too lazy to use the search engine on here to figure out they are non existent with the exception of a few brands.. I know of two ,Boston Whaler and Rampage and that was from the late 80's and...
  5. M

    Mercruiser Sea water impeller

    Have a 1987 inboard ,5.0 and I am looking for the MFG or part number of impeller or pump itself . This is NOT a I/O Manual shows a picture of outside of pump but nothing else as far as mfg or impeller info.
  6. M

    Ford 302 ,Grounding Issue ?

    Question was posed to me and I am 1500 miles away. Guy has a 2002 Ford 302 straight inboard and will not start /turn over/trips circuit breaker when in water. Pulls boat out of water and it turns over and fires up right away at the ramp. Has brand new battery and voltage meter shows 14 when...
  7. M

    5.0 labeled on air housing ?

    Buddy looking at a 2006 boat and he sent me a picture of the engine. The air cleaner housing has specs listed and it shows 5.0 [ 350cid ] written just like that with parentheses as shown. Along with a big 5.0 in the center. A 350 is a 5.7 so what gives with Mercruiser showing it as possibly a...
  8. M

    1987 5.7 inboard engines

    Tried a search and couldn't come up with anything, so forgive me if this is a repetitive question. Are these engines 350 chevy blocks with some volvo parts added on or are the stand alone Volvo engines. As I searched I saw there engines were 5.7- 5.0-7.4-4.3 that mirror the GM numbers. Are the...
  9. M

    Is this site messed up or is my computer wacked ?

    I can read entire posts when I am NOT logged in. When I log in I can scroll about 3/4 of the way down on a topic and then it locks up.Log out and I can read the entire post/topic.This is the only site it happens on. Also I love how someone asks a question/has a issue and when people that are...
  10. M

    Mercruiser manual #5 Att. Moderators

    All the service manuals but Number 5 load up. Is there a issue with this ?
  11. M

    Merc 3.7 drive swap for Merc 120 ?

    Front of bullet is starting to weap oil on 1979 Mercruiser "3.7" and I have 2 good "120" drives taking up space in the garage.Will try some JB weld in slightly pitted area.If that does not work we go to my question. I know I can swap out the different gears,just do not want to pay for it.I was...
  12. M

    Looking for info on Michigan prop

    Have a trashed out- Michigan smc 380 cup-[ that is the only marking stamped on prop] trying to find out what pitch and diam this is. Searched EB and found a 378 that was 15 1/2 x 19 and thats as close as I can find. Just bought as is,as is I am rebuilding the engine and have never had it in the...
  13. M

    Carb Model number for 470 ?

    Rebuilding my 470 2 barrel.I picked up a 4 barrel intake manifold for it. Need to know the Rochester model number. Would also like opinions on other carbs vs the stock carb, [like a Holly].Also are the cfm ratings the same for the 470 - would a 650 vs 750 make any difference ? Is there anything...
  14. M

    470 hp rating question.

    Looking at a couple of them and one, 89 3.7xl, is listed at 180hp the other is maybe 84 ,188hp. They are both 4 barrels,so did they change there rating system or is there a actual difference in them. The original being 170,how many other variations of hp did they make or is that it,170,180 and...
  15. M

    470 conversion to 4.3

    Ready to buy boat that has a 470 with low compression in #3 136-130-105-135. I can buy a running 1988 470 with good compression for 500.00 or pick up a hull with a 4.3 drive line for 12-1500...Will the 4.3 fit in the engine compartment would be my first question.Are the depths of the engine...
  16. M

    Two vs three blades

    Currently running a two blade 21" @ 6 grand. If I switch to a 3 blade 21" will I lose rpm's ? and if so how much. 15' tunnel hull with a 150 Tower,total weight incl driver 8-900lbs.
  17. M

    Type of rivets used to secure floor to ribs ??

    I have searched the forums and think it will be easier just to ask this[ I am sure ] played out question. Replacing floor and wondering what size and type of rivets to go with. Do I try and use the old holes in the ribs and go with maybe 1/4" rivets or drill new ones and go with a smaller size...
  18. M

    Looking for Barato2, lower windshield available for starcheif

    Bararto2 your inbox/sentbox is full. Will not accept PM. Cabin and lower glass is available.Upper shield is sold.Send me PM if still interested.Anyone else looking send me a PM in case Barato2 decides to go in a different direction.
  19. M

    1963 Starchief retrofit

    Turning her into a lean,mean,waterfowl fighting machine.Will be removing the cabin which has all the original glass intact,upper/ lower windshield ,window frames unharmed as well. No grab rails on roof,shoot me a pm if interested.
  20. M

    "Transom saver"

    Picked up transom saver for outboard,had no instructions for setting the proper angle of motor.Should the motor be tilted as high as possible,45 degress or mass of motor weight directly over transom.:confused:
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