72 Skylark 350 over heating

Discussion in 'Small Block Tech' started by 72skylarkconvt, May 5, 2019.

  1. 72skylarkconvt

    72skylarkconvt Well-Known Member

    The guy that did the TC cover was the last one to mess with the cooling system. I would assume he put in the right fluid mixture.
     
  2. telriv

    telriv Founders Club Member

    Go to the auto parts store & pick-up a pocket anti-freeze tester. Has the little balls that float to tell you coolant mixture. Probably around 5 Bucks or so.
     
  3. 72skylarkconvt

    72skylarkconvt Well-Known Member

    I know it will be overkill perhaps and prob won't fix my issues but what HD thermal clutch fan setup can be used on my car? AC car though that is broke and soon will be removed (compressor).
     
  4. alec296

    alec296 i need another buick

    More drag on engine, using more hp and fuel. If it’s not broke it doesn’t need to be fixed. mad far as AC compressor, just take off belt. If you open the system , it gets contaminated and if you ever chose to make it work it will require more work , parts, and flush.
     
  5. 72skylarkconvt

    72skylarkconvt Well-Known Member

    I have the belt off of it. I will leave it if the spark plugs on that side can be reached. It looked like that unit was in the way.
     
  6. 72skylarkconvt

    72skylarkconvt Well-Known Member

    Well I put my rotor/cap/plugs/wires on today. The plugs I took out of the car (thus far) were not wet at all, zero oil deposits, dry as a bone. The tips where a white color (dry). They were gapped at 30. The car has a (unknown type/brand) electronic ignition. I got in 6 of the 8 set at 35. I do NOT see how to get the back two out on the passenger side. Special tool for this?
     
  7. 72skylarkconvt

    72skylarkconvt Well-Known Member

    They were not blistered, tips not worn down any. They were in pretty good for the shape other the the slight white colored tips.
     
  8. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

  9. 72skylarkconvt

    72skylarkconvt Well-Known Member

    Ok I see how that would work but how will I get the spark plug socket on them?
     
  10. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    If you are asking that question, you really don't see how it works.:)
     
  11. 72skylarkconvt

    72skylarkconvt Well-Known Member

    You give me a link with many tools on it. Is it the pass through set?
     
  12. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Every tool in the link is a flex head ratchet. The head bends backwards or forwards in relation to the handle. That allows you to get into the tight spot between the engine and A/C box. I used those as examples. You can go to virtually any tool store and pick one. They will all get the job done. Get a 3/8" drive. Once you use it, it will be painfully obvious how well it works.
     
  13. 72skylarkconvt

    72skylarkconvt Well-Known Member

    I hear yea but don't see it with that last plug all the way back up on ac/firewall. I guess I slip the plug socket on the plug then drop that tool on the socket?
     
  14. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Yes, and then you will see that you will be able to position the handle so you can loosen the plug. I have had small and big block Buick engines with A/C. This tool is the ticket. I'd have those plugs out in a few minutes.
     
  15. 72skylarkconvt

    72skylarkconvt Well-Known Member

    ok, initially I was not seeing it working in my head.
     
  16. 72skylarkconvt

    72skylarkconvt Well-Known Member

    One thing that I have noticed with this car since I had it. It is so minimal that I forget to say anything being so busy chasing all my issues with it but on the hwy at cruising speed, not having my foot in it much at all I can feel an ever slight pulsing, surge back and forth, very slight feeling, from what I feel is the carb just being old and needs gone over. If I get on it some I do not feel it. Does not seem like a miss. I have driven many cars set up like this old Buick and I have felt misses before and this does not feel like that type of issue.
     
  17. 72skylarkconvt

    72skylarkconvt Well-Known Member

    I have researched on the net about what Tstat I should have in this car. I thought I put a 180 in it. Should I run a 195 assuming all other components in the cooling system are working and timing is correct?
     
  18. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    The thermostat sets the MINIMUM temperature for the cooling system. Do you want the engine to run cooler than 195*?
     
  19. 72skylarkconvt

    72skylarkconvt Well-Known Member

    I thought (from what I read) running a higher degree tstat keeps the coolant in the rad longer to cool it and the car runs better with it?
     
  20. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    That is incorrect. All thermostats restrict the amount of coolant going into the radiator. The stat varies it's opening based on temperature. As I said, the stat sets the minimum temperature the system will run at. The system won't run cooler if the thermostat won't allow it.
     
    Last edited: May 27, 2020

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