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Projects This amount of carbon typical?

Discussion in 'The Hokey Ass Message Board' started by rladams65, Sep 27, 2021.

  1. rladams65
    Joined: Aug 21, 2021
    Posts: 55

    rladams65
    Member

    I am tearing down the 292 Y-block from my '62 Mercury. It is stuck - and so I am trying to get to where I can turn it - assess the cylinders + rings - then make some decisions about what to do as I put it back together.

    Does this amount of carbon look "normal" for a car that last ran in 1984 and has 50K ~ 150K miles? (I shop vac'd the pistons before I took the pic, but not the heads - sorry)

    Any other observations?

    #4>>#1
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    upload_2021-9-27_7-52-13.png

    #5>>#8
    upload_2021-9-27_7-50-41.png
    upload_2021-9-27_7-52-43.png
     
  2. THE FRENCHTOWN FLYER
    Joined: Jun 6, 2007
    Posts: 5,421

    THE FRENCHTOWN FLYER
    Member
    from FRENCHTOWN

    I've seen worse than that for an engine of that era. Oil ring and valve stem seal technology as well as crankcase ventilation wasn't what it is today. Proceed
     
    Last edited: Sep 27, 2021
    loudbang, squirrel and rladams65 like this.
  3. squirrel
    Joined: Sep 23, 2004
    Posts: 56,088

    squirrel
    Member

    looks pretty clean, to me.
     
    ottoman and hemihotrod66 like this.
  4. Heck, I've eaten chewed gum found under a bus seat that was dirtier than that o_O
     
    Last edited: Sep 28, 2021

  5. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,333

    gimpyshotrods
    ALLIANCE MEMBER

    Sheesh. I'd be happy to have one that good to start with.
     
  6. egads
    Joined: Aug 23, 2011
    Posts: 1,419

    egads
    Member

    Looks pretty normal. Your going through the heads before you put them back on right?
     
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  7. rladams65
    Joined: Aug 21, 2021
    Posts: 55

    rladams65
    Member

    Yes - I may take it a lot further apart before it goes back together.
     
  8. jaracer
    Joined: Oct 4, 2008
    Posts: 2,446

    jaracer
    Member

    On the first head picture, it looks like you have one "wet" exhaust valve. I'd definitely have a good valve job done. Other than that, it looks pretty normal.
     
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  9. If I tore a Y block down in 1984, that's what I'd expect to find.
     
  10. squirrel
    Joined: Sep 23, 2004
    Posts: 56,088

    squirrel
    Member

    this is one I tore down five years ago. It had been sitting long enough to not have any compression. The heads had been redone not many miles before.

    20160429_155616.jpg 20160429_155556.jpg
     
    Desoto291Hemi likes this.
  11. rladams65
    Joined: Aug 21, 2021
    Posts: 55

    rladams65
    Member

    Thanks -

    I see you have that same gunk in the water passages. I thought maybe mine was uniquely fouled in that way (like someone used radiator stop-leak), but I guess that is just part of the scene. The car came without a radiator and so I was surprised by the half gallon of "water" I got when I pulled the heads.
     
  12. squirrel
    Joined: Sep 23, 2004
    Posts: 56,088

    squirrel
    Member

    Globs of rusty crap in the cooling system is normal for neglected old cars.

    This 292 was a good one, apparently not too many miles (around 60k), it was in an Edsel, they got abandoned when they were still pretty young. I ran a hone through the bores, put new standard size rings in, new cam bearings, cleaned up the heads, and put it back together with the rest of the old parts, and new gaskets. Ran fine, got 3000 miles on a quart of oil.
     
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