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  1. R

    1977 70 hp johnson thermostat housing gasket

    Find some good used parts on E-bay.----Post the actual compression values on this motor.-----Someone was desperate on this motor.-----You have inspected the water pump ?
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    67 Year Old Head Bolts

    Aluminum melts at around 1200 F or thereabouts.
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    67 Year Old Head Bolts

    Note----The HELICOIL repair kit that I have repairs that stripped hole WITHOUT removing the cylinder head.---Easy repair for me.
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    67 Year Old Head Bolts

    When I pick up older motors like that , they come apart for full inspection BEFORE spending any coins on parts.---Powerhead and lower unit.-----There is usually something wrong internally !----Easy to drill out broken bolts on a drill press.----Should be easy to find replacement parts for these...
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    2001 Mercury 90hp Outboard Hard Start

    First thing I would do is load test the battery.-----Then take starter apart for inspection and ohm test on armature.----Also test function of the enricher.----And post the actual compression values here.
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    1977 70 hp johnson thermostat housing gasket

    ??----You take thing apart.----Inspect.----Order / replace what is needed.----That is the way I have done this work for many years.
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    can you remove the top drain plug screw from a lower unit and re instal it with a new washer ?

    ????-----Are you checking if there is 50% water in it , yes or no ?
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    Starts right up sometimes, but other times crank no start

    I can not see or touch your motor !----The red lever should be inline with the valve body for normal operation.----If I saw 90 PSI here with my gauge the cylinder head would be off in a matter of minutes !
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    Starts right up sometimes, but other times crank no start

    Compression should be about 140 PSI on that motor.----Is red lever in correct position on the primer valve ?----Sounds like the float valves in carburetors need attention.-----Or fuel pump diaphragm is ruptured.----Here I would retest compression or pull the head to check cylinder walls for...
  10. R

    1977 70 hp johnson thermostat housing gasket

    ????----There are TWO grommets in there !----One for each poppit valve.----One shown in the picture for clarity.----And quantity 2 required in the part listing.
  11. R

    1977 70 hp johnson thermostat housing gasket

    Make sure the cover is clean and FLAT.----All aluminum castings warp with time.
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    1977 70 hp johnson thermostat housing gasket

    Also replace the 2 rubber grommets in there.---A very thin coat of a gasket sealer ( Permatex ) is all that is required.----Many folks use way too much.-----Dry is better than RTV oozing out.
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    Wiring a 3 wire trim/tilt pump to throttle handle switch

    The " UP " operation requires more current.----More work is being done.
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    99 3.1l ox66 wont rev (what am i not thinking of here)

    A " brand new " looking sparkplug means ----No fuel.--Too much fuel.-----No spark ----or no compression.
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    Starts right up sometimes, but other times crank no start

    Do you hold the key pressed in while cranking it over ?--Have you tested operation of the electric primer valve ?-----The bulb is a manual fuel pump.----Only used to fill carburetors.----Once motor has been cranked or run , the bulb does NOT need to be hard.-----Start with posting the actual...
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    67 Year Old Head Bolts

    Is that plug thread stripped out ?
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    Mercury V6 XR2 - Does this Stator looks bad?

    Just a few tests.----Start motor let it idle.----Remove 1 plug wire at a time.----Post results.----Does spark jump a gap of 3/8" on each lead ?---Mark flywheel for TDC for each cylinder.----Use timing light to check each cylinder at idle.-----At full throttle on the lake look into each bore with...
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    New Stuff on Vehicles likes/dislikes

    Most people buying new vehicles are not concerned with complexity of repairs.-----They simply trade in for new again.-----Those of us who buy used vehicles say ----" what are those engineers / developers smoking "
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    Mercury V6 XR2 - Does this Stator looks bad?

    Flywheel magnet checked ?-----Recheck all wires from switch boxes to the coils.-----Sounds like it is running on 4 of 6 cylinders.
  20. R

    1960s McCulloch 7.5 hp w/ electric start above fltwheel with Serial 80355-1412

    Your location ?
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