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  1. Scott Danforth

    Radon and seal concrete under tub

    Should be ok. Thinking you will need two pours. First will filter down into gravel a bit. Second should be able to seal any gaps left over
  2. Scott Danforth

    Radon and seal concrete under tub

    Liquid epoxy?
  3. Scott Danforth

    292 inline 6 with prealpha drive for 19.5 cuddy

    Need to know specifically the length of the bundle, the number of tubes in the bundle and the number of passes. It may not be an engine heat exchanger
  4. Scott Danforth

    292 inline 6 with prealpha drive for 19.5 cuddy

    Which heat exchanger are you using? Is it sized for full-system? Before you buy parts, you need to have a schematic. That will determine which thermostat housing and how it's plumbed. A full system requires constant flow to exhaust manifold and back thru HX and then to water pump, and the...
  5. Scott Danforth

    Cavitation Burns

    spray paint and go boating cavitation burns are common, more common on DP drives
  6. Scott Danforth

    89 Volvo Penta AQ271C ignition or carb, maybe something else

    if you need to rebuild the carb, I have one or two (hundred). I have also used the same carb on my 468 until going bigger (thread in sig)
  7. Scott Danforth

    I need a new Carburetor for mercury 9.9, 4 stroke

    welcome aboard you must not have looked very hard. Mercury shows its still available parts group 3303. p/n 895110T01 https://www.mercurymarine.com/en/us/parts-and-accessories/parts-catalog?gclid=CjwKCAjwpKveBRAwEiwAo4Pqm6JIrzner3CFcr-0DidW_n0WQYnRdOVfmu02gJDFF3ONGayJbxAydhoCahcQAvD_BwE >...
  8. Scott Danforth

    Fuel gauge always says full. Which variable resistor/potentiometer?

    never ever ever had to use a potentiometer on a gauge ever. and I must have designed at a minimum, 800 different fuel tank installations from marine to off-highway to on-highway So I am pretty sure
  9. Scott Danforth

    Axle weight capacity

    Looks to be a serial number and not a HIN if it is a searial number, looks to be a 1981 260 DA Build 6282 https://owners-resources.searayweb.com/model-archive-files/1C1_27_74DERNJ5B335.pdf regardless, if its an 260 Vanguard, Weekender, or Sundancer, your trailer is not big enough
  10. Scott Danforth

    1988 3.0 and 1994 3.0 swap

    in 1990 the motor went thru a major re-design for 1991. the crank went from a 2-piece to a 2-piece. at the same time, the block changed, the head changed, the pistons and rods changed. the use in boats went from the 153 tooth flywheel to the 168 tooth flywheel yes, while they are both 3.0...
  11. Scott Danforth

    Fuel gauge always says full. Which variable resistor/potentiometer?

    then you have either a bad gauge or a bad sender or bad wiring
  12. Scott Danforth

    Caprice Shudder at Hwy Speed

    not a fan of balancing beads. if you use the wrong amount, you exasperate vibration.
  13. Scott Danforth

    Tow Strut?

    stow your bimini down
  14. Scott Danforth

    Fuel gauge always says full. Which variable resistor/potentiometer?

    you need to get the float arm to properly move also, if your sender is at the back of the tank and you have a shallow tank, it will most likely read full if your bow is always pointed upwards. does your boat sit level?
  15. Scott Danforth

    Problem with a Mercruiser 5.7 V8 LX

    yes, the price went up
  16. Scott Danforth

    89 Volvo Penta AQ271C ignition or carb, maybe something else

    its a standard timing tape. mostly used on performance engines so you can check timing advance without an advance timing gun so your timing is good now check fuel pressure at the carb
  17. Scott Danforth

    292 inline 6 with prealpha drive for 19.5 cuddy

    I hope you mean heat exchanger
  18. Scott Danforth

    292 inline 6 with prealpha drive for 19.5 cuddy

    Get the appropriate thermostat housing for raw water cooling 1/2" NPT is a bit small.
  19. Scott Danforth

    89 Volvo Penta AQ271C ignition or carb, maybe something else

    You have timing tape on the damper. It's used to validate full advance the groove is TDC or 0 Timing tab is standard SBC. The big V is TDC At 2800 RPM, your total advance should be 32 or 34 (see decal on vanity cover)
  20. Scott Danforth

    1988 3.0 and 1994 3.0 swap

    Both
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