telltale signs a nailhead hasnt been opened up?

Discussion in ''Da Nailhead' started by GranSportSedan, Apr 25, 2019.

  1. GranSportSedan

    GranSportSedan Puppet dictator, wife has all power

    are there any specific indicators that would tell you an engine hasn't been apart since new? For example in 66 did they have those locking exhaust manifold bolt clips?
     
  2. telriv

    telriv Well-Known Member

    Yes, they are called French Locks. Another sign is the head gaskets are NOT shim steel, but a composite gasket. The intake gaskets are NOT shim steel, but composite. The oil pan gasket looks newer.

    Tom T.
     
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  3. TrunkMonkey

    TrunkMonkey Well-Known Member

    The chastity belt is still installed on the pully...
     
  4. GranSportSedan

    GranSportSedan Puppet dictator, wife has all power

    Lol, I don't think I want to know
     
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  5. TrunkMonkey

    TrunkMonkey Well-Known Member

  6. GranSportSedan

    GranSportSedan Puppet dictator, wife has all power

    well looks like exhaust manifolds have been off but engine hasn't been apart. steel head gaskets and intake gaskets still present.

    steel gaskets2.jpg
     
  7. wkillgs

    wkillgs Gold Level Contributor

    Buick stopped using the french locks some time in 1966 and went to a lock washer on the manifold bolt. There should not be ex manifold gaskets on there.
    Steel intake gaskets from Fel Pro have been a common replacement for years. I'll guess steel head gaskets were phased out over the years. An early head gasket could be steel (Victor?) but composition became more popular as the years went on.
    Buick painted the engine after assembly, therefore, paint on gaskets. Alt brackets were put on afterwards, so no engine paint on them or the 2 head/bracket bolts.
    If you disassemble, the bearings will have date codes.
     
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  8. GranSportSedan

    GranSportSedan Puppet dictator, wife has all power

    thanks for the info. So far my engine meets all that criteria, right down to the paint and the lock washers on the exhaust manifold bolts.
     
  9. GranSportSedan

    GranSportSedan Puppet dictator, wife has all power

    while were at it, please listen to this video and tell me if you hear anything abnormal besides the exhaust leak. My bionic ears tend to filter out engine noises assuming they are undesired background noise.

     
  10. 1972Mach1

    1972Mach1 Just some guy.....

    I don't hear any abnormal actual engine noises, but sounds like you've either got a p/s whine or the alternator bearing is going out.
     
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  11. GranSportSedan

    GranSportSedan Puppet dictator, wife has all power

    I think it's the ps pump although the st300 is notorious for a loud whine when in neutral or park
     
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  12. TrunkMonkey

    TrunkMonkey Well-Known Member

    It has that nailhead "heartbeat", and I agree with the "whine" being the only thing of small concern.
     
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  13. TrunkMonkey

    TrunkMonkey Well-Known Member

    BTW, I have my 2x4 carb and manifold off. Do you still need that bellcrank?

    If so, I will take mine off, make one and send it to you, just PM me your address so I can pop it in the mail when I git-R-dun. (the screw was crosscut staked and I could not access it while on the car/manifold)
     
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  14. GranSportSedan

    GranSportSedan Puppet dictator, wife has all power

    That would be wonderful. just let me know how much to send you. if you have a factory kickdown bracket on your setup I would love some detailed pics and possibly some measurements.
     
  15. TrunkMonkey

    TrunkMonkey Well-Known Member

    Mine is manual, so no kickdown.

    I'll make the bellcrank and send it to you. If you like it and it works, make a donation to the board. :)
     
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  16. gs66

    gs66 Well-Known Member

    Motor sounds good!
     
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  17. Babeola

    Babeola Well-Known Member

    I think trans converter whine. Engine sounds good!

    Cheryl :)
     
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  18. Mark Demko

    Mark Demko Well-Known Member

    I think so too, never opened up, I think its great:cool:
     
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