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  1. Scott06

    5.0 not starting

    so you have no power at the keyswitch? - would take the cannon plug apart on engine verify 12 is there ? this is a genric merc dash harness https://www.perfprotech.com/blog/articles/mercruiser-engine-harness-schematic I can post a engine wiring diagram when i get home
  2. Scott06

    5.0 not starting

    the neutral safety and temperature switches do not require reset. do you have 12v dc supplied to the 50 amp breaker or at the slave relay? do you have a wiring diagram? is this a carb mpi or efi
  3. Scott06

    Mercruiser or volvo

    Matter of personal choice.if you like to maintain your boat yourself you need to buy rinds software or similar if you have injection. Many of us like myself have stayed with carbs to keep it simple. Not that injection is bad or overly complicated… you can rebuild a carb with simple hand tools...
  4. Scott06

    5.0 not starting

    Look at 50 amp that is on the engine somewhere Also Might have blown the 90 amp fuse that is on the battery lug on the starter Outside chance since it got hot the ground cable On back of engine got melted ?
  5. Scott06

    Mercruiser or volvo

    Both are very good systems with generally reliable long lasting power plants. Biggest concern you consistently hear is lack of availability of Volvo mechanics and parts. Depending on where you are or if u maintain your boat this may or may not be an issue. Bottom line either one with some...
  6. Scott06

    '71 Mercruiser 165hp I6 oil pressure sender thread size?

    Usually they are 1/8” pipe thread. Look inside the gauge you get usually they have a few adapters and bushings to fit different sizes
  7. Scott06

    Toyota/Lexus Timing Belt Change Thoughts

    Yes it is a 90 k service interval if you can’t document it was done have it done as it is an interference engine. There is also a time component if low miles. Last time I had one done on that engine family I think it was about $600 including water pump tensioner pulleys etc. It’s not a bad...
  8. Scott06

    Changing manifold on a 2004 3.0.

    No one can currently post pictures so don’t take it personally. I think that hole maybe for pet of the throttle linkage on older models it sure it should go through to intake passage. Is this an oem or aftermarket manifold ?
  9. Scott06

    Impeller pump cover

    The gen one drives use a plastic housing When water flow is restricted it will melt everything in the exhaust passages including the water tube and impeller housing How long was it hot sounds like you split head gaskets or cracked a head. The overheat will void the warranty on the engine…
  10. Scott06

    4.3 Chocolate milk

    How was your winterized ?
  11. Scott06

    2008 bayliner 192 discovery

    you need to get weight up front and drop pitch to a 21 maybe go to 4 blade to get some stern lift. Trim tabs/ Flaps will help but you have too much pitch
  12. Scott06

    12 ft lonestar 9.5 johnson

    you can ohm test the coil before you replace. Would also look if plugs look like they are running lean from dirty carb Would also agree that it should plane easily. Check for spark Has a similar situation with neighbors 70 hp merc a few years back plug wire from coil to plug was bad had one...
  13. Scott06

    5.0 mercruiser 04 OM696715

    there are check balls in a T on the top of thermostat housing on some mercruisers. This is for the warm manifold style where the manifold and elbow are fed by separate cooling lines. the one that goes to elbow has constant cold water flow regardless of thermostat being open or closed. If it...
  14. Scott06

    5.0 mercruiser 04 OM696715

    Did you use the right gasket between manifold and elbow? Some are restrictor some open depending on if you have warm or cold manifolds. Would verify thermostat actually opens at 160, and check impeller is on correct and water tube between lower and upper is correctly in place. Did you use an...
  15. Scott06

    1989 Mastercraft prostar 190

    Spit my beer out.... at least you are still friends.
  16. Scott06

    Need to vent....

    Comon man you cant drop that dime and not tell... post it at 5 or 6 tonight so we can enjoy it over a beer... and then chime in with our stories that all start with "hey guys watch this... "
  17. Scott06

    Trailer Painting

    Dustless uses water in with blast media. Has a flash rust preservative in it. Actually looks like a pretty neat process from videos I have seen doing old cars
  18. Scott06

    4.3l mpi crank no start

    Yes if you have 43 psi you should be good. One thing on the mpi engines the crab style dist cap is a known problem area . May not be your issue but migh5 be worth swapping out
  19. Scott06

    4.3l mpi crank no start

    Do you have spark? Take coil wire off and hold it close to ground while cranking. Need to determine if are missing fuel or spark
  20. Scott06

    Electronic Ignition part number and Non-Resistance spark plugs

    Same in the classic car /GTO forum I am on as well. if the op wants electronic ignition for a 120 get a genuine Delco EST (aka not a knock off) and you have an OEM quality system
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