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Flathead valves

Discussion in 'The Hokey Ass Message Board' started by Flyinsolo71, Feb 11, 2012.

  1. Flyinsolo71
    Joined: Oct 25, 2006
    Posts: 89

    Flyinsolo71
    Member
    from Austin

    So I apologize in advance for my lack of knowledge. I pulled the heads off of my 51 Ford. One of the valves had what I am guessing to be a seal loose and hanging under the valve like a ring. I managed to tap it back into the block. I am guessing the valve was stuck and the seal popped out when I started it. It had not run since 1990. Will it be okay or do I need to replace it?
     
  2. do you have a pic? it almost sounds like you are describing a valve seat
     
  3. Flyinsolo71
    Joined: Oct 25, 2006
    Posts: 89

    Flyinsolo71
    Member
    from Austin

    Yes, sorry. I believe it is the seat. It is a ring directly under the valve.
     
  4. ya that is the valve seat.you might want to peen the bolck in four places around the seat or their is a good chance it will pop out again and also check the face of the valve for any irregularities
     

  5. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,682

    Bruce Lancaster
    Member Emeritus

    Clean and inspect area VERY carefully...loose seat is often caused by a crack, usually the dreaded valve-to-bore crack.
    If block is good, Joblot may still have some of the slightly oversize dry-ice fit repair seats. And peen for good measure. Valve may be junk from its seat hitting against the loose block seat...
     

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