Mechanical temp sensor

Discussion in 'Small Block Tech' started by 72skylarkconvt, May 20, 2019.

  1. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    Yes, it needs to be at idle speed. If the engine is cold, the idle will be fast. As engine speed increases, the mechanical advance adds timing. You don't want ANY mechanical advance in when setting the initial timing.

    RPM is irrelevant to what you are doing now. You just need the engine at slow idle speed (800 RPM or so) You are getting AHEAD of yourself. See if you can set your initial timing first.
     
  2. 72skylarkconvt

    72skylarkconvt Well-Known Member

    Do I need to worry about the #1 cyc being TDC before I do anything to set initial timing or just plug vac , let it idle to warm engine normal idle then check initial timing?
     
    Last edited: May 21, 2019
  3. 72skylarkconvt

    72skylarkconvt Well-Known Member

    How do I do this? Verify canister is working with timing light?

     
  4. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    Like I said, you are getting ahead of yourself, one thing at a time. Set your initial timing first.
     
  5. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    No

    Yes
     
  6. 72skylarkconvt

    72skylarkconvt Well-Known Member

    ok, I need to stop watching all the video's out there for setting timing on like motors, everyone has diff takes on what to do and at what time in the process. ha ha
     
  7. 72skylarkconvt

    72skylarkconvt Well-Known Member

    If I am really at factory spec of 4* initial what really are the chances my over heat issue goes away after timing is set right? Seems to simple a fix.
     
  8. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    I think your running hot problem has to do with several factors. The radiator is probably tired and partially clogged if it's old. The timing and vacuum advance will help.
     
  9. 72skylarkconvt

    72skylarkconvt Well-Known Member

    Good recommendation of a place I can get a radiator? Car will be always stock so no need for fancy big bucks radiator. Is it a 2 or 3 core unit?
     
  10. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

  11. 72skylarkconvt

    72skylarkconvt Well-Known Member

    yea looked at Rocks stuff and on ebay. Stuff on Ebay that looks OEM, all black
     
  12. 72skylarkconvt

    72skylarkconvt Well-Known Member

    ok, this timing thing is bothering me. Ha ha ha Seems easy but I am still overthinking, sorry. Let car warm up to oper temp, normal idle, turn off, plug off vac line from carb that goes to vac advance, then start it up and point the timing light at the harmonic bal where the numbers are located and if correct based on what you all say here I will see the flash show at 4* or where ever if it has been messed with, then I adjust the distrib till the light mark hits about 12-14?? Then tighten the distrib back down till I get instruction from you all to then get that total 32* measurement at 2500 - 3k rpms??
     
  13. 72skylarkconvt

    72skylarkconvt Well-Known Member

    I don't need to set TDC which I think is the Zero on the balancer with the POINTER pointing right on Zero?
     
  14. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    No, why would you need to do that? The timing light flashes every time the #1 cylinder fires. That freezes the visibility of the timing mark so that you can see it in relation to the scale. The only time you would need to establish TDC would be if the distributor was out of the engine and you were re installing it.
     
  15. 72skylarkconvt

    72skylarkconvt Well-Known Member

    I had no idea why. :)
    It is what I see on some video's and they fail (or assume the person, me, understands) to say it is on new/re installs of distribs.
     
  16. 72skylarkconvt

    72skylarkconvt Well-Known Member

    So what is the pointer (I see some of these have numbers on them) for at the balancer if you are reading the marking on the balancer with the light, just to set things like TDC?
     
  17. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    The part with the numbers on it is called the timing scale. The line on the harmonic balancer is the timing mark.

    TimingMarkand Indicator.jpg
    Above is what it looks like when you shine the timing light at it. The timing above would be 6* BTDC.
     
  18. 72skylarkconvt

    72skylarkconvt Well-Known Member

    But I am not reading off that indicator correct? It only goes to 12. I thought there was a set of numbers on the harmonic bal I was going to be looking for my 12*
     
  19. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    No, you are reading off that indicator (scale). When you turn the distributor, that line will move. Line it up with the 12.
     
  20. 72skylarkconvt

    72skylarkconvt Well-Known Member

    ok. No idea how you will tell me later how to read/set for total timing of 32* :)
     

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