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makomark's latest activity

  • makomark
    makomark replied to the thread Gauge HELP.
    Sounds like more troubleshooting is in order...on the port side anyhow...could be the sending wires are connected all the way thru the...
  • makomark
    makomark replied to the thread Considering 7.4L Crusader XLi TBI Issues ?.
    Are they available - yes, but not everybody has what you need. That said, there are several TBI specialists that are will to work the...
  • makomark
    makomark replied to the thread Coupler mismatch.
    you can try a sierra 18-21751-1 coupler...they are listed as being for an SX drive spun by an early (2 pice rear seal) SBC... I've...
  • makomark
    makomark replied to the thread Gauge HELP.
    usually a GRAY wire or two is on the "-" terminal of the tach....one of which should run up to the gauges at the instrument panel...
  • makomark
    makomark replied to the thread 1968 omc 120hp dual carbs.
    I don't have a definitive (independent) source but can tell you the stern drive community got rid of the "top plate" manifolds on the GM...
  • makomark
    makomark replied to the thread Replacing coolant - Can't open bleed valve.
    as long as the fill neck on the HX is the highest point in the system, then yes, the air will eventually make it to the HX... you can...
  • makomark
    makomark replied to the thread Replacing coolant - Can't open bleed valve.
    I'd suggest filling the HX, running the engine until the T-stat opens and then shutting it off...and then cool until the T-stat...
  • makomark
    makomark replied to the thread no start after rebuild (x2).
    sounds like you have pulled the heads already - what did you find?
  • makomark
    makomark replied to the thread 1968 omc 120hp dual carbs.
    The MERCARBs are younger cousins to the Rochester 2G's...the smallest 2G will flow ~ 275CFM so that would the preferred configuration...
  • makomark
    makomark replied to the thread Gauge HELP.
    Never dealt with that brand; the OEM should have installation details readily available. that said, its common to use one mold for the...
  • makomark
    makomark replied to the thread Gauge HELP.
    ok...what's the question(s)???
  • makomark
    makomark replied to the thread no start after rebuild (x2).
    Probably be a good idea to identify what engines you have...assumptions can lead to disastrous results... The improvement after adding...
  • makomark
    makomark replied to the thread no start after rebuild (x2).
    On the engine w/ 150PSI of compression, if it has plenty of spark and fuel in the carb, I'd start by making sure the fuel is good...no...
  • makomark
    makomark replied to the thread Crusader 454 xli no fuel pump power - looking for some diagnostic help.
    its a SPDT switch...the common terminal feeds the fuel pump, the red/yel supplies current to the fuel pump when cranking(N.C. terminal)...
  • makomark
    makomark replied to the thread Mysterious Milky Oil - Not Risers....
    towards the end of the first video, it looks pretty clear that the water is flowing out of the head just behind the valve guide...that...
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