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  1. Scott06

    2003 SeaRay 200 Bowrider seized engine????!!!!

    I have the same boat , 2004, absolutely love it. I bought one the previous owner cracked the block. I swapped the 4.3 for a 5.0 carved setup I got from Michigan motors. Would recommend them the options depend on how involved you want to be and how dirty you get. If you can do the work get a...
  2. Scott06

    No spark 4.3 Mercruiser

    generic merc helm diagram https://www.perfprotech.com/blog/articles/mercruiser-engine-harness-schematic generic merc 4.3 carb engine diagram attached hopefully it is legible
  3. Scott06

    No spark 4.3 Mercruiser

    Red is power from engine to switch constant as you observe is correct Yellow red is to starter , purple is ignition on. You don’t need a ground on the switch you are only switching the positive side of 12 v up there. There will be a ground bar under the helm for the negative side of the garages...
  4. Scott06

    95 Mercruiser 3.0L 4Cyl to Diesel Swap?

    Yes , and as pointed out gear ratio is different for a diesel. Either find another 3.0 or likely the boat was offered with a 4.3 and step up in power. @Rick Stephens can tell you how to do it as he is the resident 3.0 to 4.3 jackalope ( or did u use a stronger term) expert. merc makes diesels...
  5. Scott06

    Crud in carburetor, is it a problem?

    i meant once you verified the timing is ok likely this is related to carb being plugged up Or some type of fuel starvation. If you get it successfully cleaned out and are feeding it with clean fuel you should be ok after that
  6. Scott06

    Crud in carburetor, is it a problem?

    good advice especially the last paragraph... link to carb manual http://www.discount-marine.com/club/files/carb.pdf
  7. Scott06

    Crud in carburetor, is it a problem?

    Back to the OP, completely disassemble the carb, clean all the passages, makes sure the fuel filter in the bottom of the fuel pump is clean or replaced, verify clean fuel supply to carb , check fuel pressure/adequate supply . I would think having verified timing the above would take care of itb
  8. Scott06

    Crud in carburetor, is it a problem?

  9. Scott06

    Crud in carburetor, is it a problem?

    Disagree with the comments on Mikes carb have had very good parts and service from them over the years on three different carbs. Got a very good kit for my mercarb from them
  10. Scott06

    Crud in carburetor, is it a problem?

    3.0 has a water separator in the bottom of the fuel pump remove the bowl of he fuel pump there will be an replaceable element in there .
  11. Scott06

    Bravo 3X repair

    Common crack area from housing corrosion. If you are handy you can get a good used housing swap your internals. That’s what my buddy did with identical crack On his B3. I think the housing set him back a grand, ultimately he added a second mercathode with puck like transom anodes seems to have...
  12. Scott06

    Nola Mike's 3.7/470 --> 4.3L swap thread

    duplicate post
  13. Scott06

    Nola Mike's 3.7/470 --> 4.3L swap thread

    Good deal what got you the extra mph ? I thought last post you were topping out at 45?
  14. Scott06

    Mercruiser alpha one small amount of water in shift cable housing

    Use a bolt as a homemade puller to pull the seal into the housing. Put the bolt through the seal and housing, slide a washer and nut on threaded end tighten the nut to pull the seal into place in the housing. It will be a light press fit. you can’t use a seal driver or socket to push it in as...
  15. Scott06

    357 mag bravo 4v long block replacement

    The bravo 357 mag is rated at 325 hp so I believe the long blocks are the same, but as mentioned you may be able to just get away with valave job and head gaskets. if I haven’t you may want to check pricing at michigan motorz on long blocks and crate engines if u go that route. I had a nice...
  16. Scott06

    1990 Mercruiser 5.7/v8 rusted exhaust manifold bolt

    Lots of heat at the base would be my first attempt that not working the head will break off or cut it off with a grinder so the manifold can come off, if us are lucky you will have a headless bolt sticking out , more heat penetrating oil pipe wrench or vice grip on shaft of bolt sticking out of...
  17. Scott06

    Mercruiser alpha one small amount of water in shift cable housing

    Shift shaft seals , exhaust is full of water will get forced up. But as said while your in there replace them all
  18. Scott06

    mercruiser 140 head

    Well two way to make it work one find a head to fit your intake , or find an intake to fit your working head. where are you located ?
  19. Scott06

    mercruiser 140 head

    I think yes it is but you also may want to check the intake and exhaust ports line up on the manifold. Back in the day I think they offered multiple hp versions of the 3.0 like 115 and 135 hp. it may also be a head of the 2.5 which was the little brother of the 3.0 , at work just the same just...
  20. Scott06

    Alpha one Gen 2 u-joints

    this shows how to do the preload
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