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  1. Scott06

    Timing check 350 5.7l Carb

    yes some engines had no knock sensor. TB4 had no knock sensor at all. TB5 some engines have a knock sensor some do not. Ok makes sense. Is the carb correct now ? Assume it was a float/needle & seat issue? if it is still an issue may need to check the fuel pressure
  2. Scott06

    Puffing steam out vents

    That’s good. Verify your exhaust is not leaking get it running do a couple oil changes to make sure it runs clear oil wise exhaust manifolds can be tested by filling with acetone. It wicks into cracks easier than water
  3. Scott06

    Puffing steam out vents

    Ideally you want to pressure test the heads too as often they crack at exhaust seat or jacket in salt wears through. If it were mine I’d put the o,d head gaskets back on torque the heads down and test. why did you change riser gaskets ? Is this salt or fresh water any chance water got down the...
  4. Scott06

    Puffing steam out vents

    Your best bet is to pressure test the cooling system. Which isn’t hard to do and will confirm if you have a crack or other odd ball situation. does you engine have an engine oil cooler by chance ?
  5. Scott06

    Puffing steam out vents

    Pressure test the cooling system see if it holds. of course better to do this before you tear it down. Did you see any cracks in lifter valley below heads, underside of thermostat is also a corrosion and crack area. riser gaskets would have to leak water back into cylinders and in oil. Might...
  6. Scott06

    Timing check 350 5.7l Carb

    Here are some snips from the manual that me help you They may be out of order when I hit the screen shots page numbers are in lower left. The pic of the early TBV module with single connector may help u match up what you have .
  7. Scott06

    Timing check 350 5.7l Carb

    Take a picture of the module and post if if you have the wire on the ma I fold with a black rubber plug in it you have the T bolt 5 . what year is the boat? yes early versions of the t bolt 5 had a module mounted on dist with an oblong wire harness connection. Later ones had it mounted on...
  8. Scott06

    Spray of water from exhaust manifold above O2 sensor

    as expensive as the manifold replacement is compared to it to a new or rebuilt long block if they leak water into engine …
  9. Scott06

    Bolts for water pump are rusting

    Wire brush them and paint them with black rustoleum. likely the paint on them got nicked off when you changed it. What you are seeing is typical of many areas on my engine that is also fresh water use. My boat is a 2004 but I did a repower in 2016 so everything was painted fresh then. a number...
  10. Scott06

    Lubricating starter motor shaft 5.0 MPI

    agreed unless it goes swimming I have yet to replace one on my boats
  11. Scott06

    2002 5,7 Mercruiser exhaust manifold keeps cracking - 5 times this summer

    yes would agree it looks recessed significantly
  12. Scott06

    Leak into bilge, bellows?

    before you rip out the bearing you just put in turn the engine 90 degrees - every once in a while you see someone with a coupler that is a tad eccentric. keep turning it 90 degrees you may be able to get better witness marks and better adjustment. What did your grease marks look like? As...
  13. Scott06

    Leak into bilge, bellows?

    Do not quit your day job...
  14. Scott06

    Raw water pump 7.4 454

    you need to get the cam specs first. Dont mess around with it as it will ruin the motor fast of the exhaust is wrong. Even if you have to pull the cam to find the number on it it is worth it to do it right. here is a basic write up on it. Height of riser is not the issue but length where...
  15. Scott06

    Leak into bilge, bellows?

    would assume what you are seeing is either previously mentioned grease build up or maybe some burrs on the splines on driveshaft or coupler. the whole thing is way less precise than some make it out to be. what you describe adjusting up and down only making it worse shows you got it as good as...
  16. Scott06

    Quadrajet Accelerator Pump Rod in Rebuild Kit

    In addition to Mikes try cliff's. Both are very well respected in the industry. https://cliffshighperformance.com/
  17. Scott06

    lifter issue and rock arm registration

    If you cannot get the tool easily in Italy - not as elegant but you can also put in the distributor as is (need intake bolted down) and turn the engine over with the starter to prime it, leaving spark plugs out.
  18. Scott06

    pieces of something when taking lower unit off

    is the rest of the bellhousing structurally ok? crack doesnt travel? the exhaust passage is full of water at rest anyways. if you have it off to do bellows you could have it welded back in
  19. Scott06

    Going straight at low speed?

    it takes some getting used to. heed the comments about over correction- really, really, small adjustments otherwise you end up making it worse
  20. Scott06

    Leak into bilge, bellows?

    funny you mention cleaning the grooves. on machinery at work when having to reuse an old oring that is compressed... years ago an old timer showed me to put vaseline (food application) or grease in the groove to add some thickness.... Thought he was FOS but it worked
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