Want to add a temp gauge on my 61

Discussion in ''Da Nailhead' started by 67NorCalGS, Apr 24, 2019.

  1. 67NorCalGS

    67NorCalGS Well-Known Member

    Is it hard to remove the plug on the drivers side head? I guess that's my only option.
     
  2. Frankscat

    Frankscat Well-Known Member

    I did that on mine without any issues. If we're talking about the same plug?!

    [​IMG]

    [​IMG]

    The sensor is not mounted on the last pic but it is now. Was checking the temp gauge on a long run at the easter days and it was max. 190° in a traffic jam.

    [​IMG]

    Edit: always read carefully ;)
    I used the shown plug on the passenger side and deleted the original temp sensor for using the temp sensor of the shown gauge.
     
  3. 67NorCalGS

    67NorCalGS Well-Known Member

    Hey thanks anyway:)

    Looks good!
     
  4. Bigpig455

    Bigpig455 Fastest of the slow....

    I'm sure Tommy will weigh in here, but yeah the back of the drivers side head is the place to sink an additional sending unit. Tommy says heat and candle wax make this job simple, I had a devil of a time taking mine out. Get good access before you even start..
     
  5. telriv

    telriv Well-Known Member

    And make sure you use the correct size removal tool. Since I have MANY old oil pan drain plug removal tools for the pretty much older vehicles I just use the proper square size. ONE thing you need to do is NOT round out the plug. That can make it a very laborious job.
    Just ask Rhett he knows.

    Tom T.
     
  6. TrunkMonkey

    TrunkMonkey Well-Known Member

    I used Kroil, heat gun at 1150F and air driver on lowest setting and went back and forth until it broke loose.

    I have mechanical temp sensor in the back, and FiTech EFI controller sensor reading the front, and the delta is 3 degrees at all temps from cold startup until 210 (idling and tweaking in the driveway, with low airflow through the old 4 blade Sopwith Camel propeller.)
     
  7. 67NorCalGS

    67NorCalGS Well-Known Member

    Dang, sounds like a bear. Good thing I asked! What's the wax procedure and what do you use for a heat source? Hopefully the tool is available.
     
  8. telriv

    telriv Well-Known Member

    osy/ac map gas propane good heat gun
     
  9. 67NorCalGS

    67NorCalGS Well-Known Member

    Coo, and run wax into the threads?
     
  10. TrunkMonkey

    TrunkMonkey Well-Known Member

    The heating will help break the bonds both chemically and mechanically, and then the wax can "wick" into the threads as it cools and is reheated, and the "back and forth torque" will assist in the breaking of the bond and facilitate further wicking action of the penetrant/lubricant. And all of those things add up to free the fastener.

    Sometimes wax works better in the heated applications than oils, as the oils will often burn off faster than wax.

    It took years to get stuck, so a an hour or even a few days are better than rushing and having to drill, chase shavings, retap, rethread or weld a bolt to the bung plug, etc.
     
  11. 67NorCalGS

    67NorCalGS Well-Known Member


    Hey thanks I appreciate it. I'll try and remember to be patient:)
     
  12. Houmark

    Houmark Well-Known Member

    [​IMG]

    I cut my upper radiator hose, and placed one of those adapters in between.. Works good, but not as "clean" as mounting the sending unit in the back of the head..
     
  13. 67NorCalGS

    67NorCalGS Well-Known Member

    Definitely much easier! Thanks for the idea.
     
    Houmark likes this.
  14. Houmark

    Houmark Well-Known Member

    And I use one like this for oil temp and oil pressure.. Have 2 electric gauges in the car, and 1 mechanical in the engine bay for reference.. There's 4 outlets in it, and I goes in between the block and oilfilter..

    [​IMG]
     
  15. Houmark

    Houmark Well-Known Member

    20140402_144237.jpg 20140404_112051.jpg

    I bit shaky, but you get the "picture" :D
     
  16. TrunkMonkey

    TrunkMonkey Well-Known Member

    On my nailhead, I used a 3 inch nipple, a cross, and allows the oil pressure light, oil gauge, and an oil pressure switch to enable/disable fuel pump relays (two in parallel for redundancy). Just another way things can be done. I used a headlight connector for the pressure switch, but needed to twist all the blades a bit (all same pitch) so the connector would grip. I did not want two or three connectors, but it would have been fine to do that.

    (The oil light sender looks closer to the manifold than it is.)

     
  17. 67NorCalGS

    67NorCalGS Well-Known Member

    Thanks for all the ideas guys. I did something similar before with the oil gauge. Think I might cowboy up and try and wrench out that plug on the head for the water temp. I've also seen a port on a Chevy thermostat housing before as another possible option.
     

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