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Opened a can 'o worms... Cracking around valve seats.
  • GrimGreaserGrimGreaser
    Posts: 541Platinum Member
    So I popped the head off to see what I need to do to get my compression back and stop the smoke blowing through the crankcase. Badly burned valves are there, bores 'look' good (not trashed, no scoring) but I haven't measured them yet, but what bums me out is several valve seats are cracked. Exhaust valves #2,3,4 and intake #1. Anything I can do with the engine in the car? I was hoping to get by with new valves and a ring job. Is the block toast at this point?
    IMAG0129.jpg
    3264 x 1952 - 1M
    IMAG0130.jpg
    3264 x 1952 - 1M
    Six in a row makes it GO!
  • Geoff C., N.Z.Geoff C., N.Z.
    Posts: 2,270Platinum Member
    I had two valve seats replaced in my Jet some years ago. They did it in place, so it can be done. You will have to find the right engine rebuilders with the gear.
    If you're stuck in a hole, stop digging.
  • maasfhcenturylinknet
    Posts: 45Hitchhiker
    No the block is not toast. You may have to pull the block for the machine shop. Many do not have the old time tools to replace with a new seat. Many times I have made a 7X block with thes. By the time you machine the relief and open the pockets for 7X valves, the crack is gone.
    Randy Maas
  • Tallent RTallent R
    Posts: 1,576Platinum Member
    I read an article once about repairing damaged blocks. Cracks, and such are not hopeless there are ways to fix things. The man who they were interviewing said he never threw away a block or head because it "Could Not Be Fixed"
    Roger
    Retired Tech.
  • GrimGreaserGrimGreaser
    Posts: 541Platinum Member
    Well, I do want a hot Hornet engine... Can't really afford it now though. Nuts...
    Six in a row makes it GO!
  • maasfhcenturylinknet
    Posts: 45Hitchhiker
    Believe me--7X motors are not hot motor
    Randy
  • GrimGreaserGrimGreaser
    Posts: 541Platinum Member
    Eh... Hotter than what I got now.
    Six in a row makes it GO!
  • maasfhcenturylinknet
    Posts: 45Hitchhiker
    Yep--with cracks it was hot!
  • PAULARGETYPEPAULARGETYPE
    Posts: 1,254Platinum Member
    IT'S BETTER YOU OPENED UP YOUR CAN OF WORMS AT HOME WHERE YOU CAN FIX THE TROUBLE BETTER THAN ON THE ROAD TO A HUDSON MEET OR OTHER SHOW IN THE HEAT ON A NICE DAY
  • GrimGreaserGrimGreaser
    Posts: 541Platinum Member
    You should see the valves... I never personally overheated it, and it ran strong through the summer.

    I knew it would have to be gone through eventually. But I figured if it ran well enough I would get some fun from it while I could instead of tearing it apart, running out of time/money, and then just looking at it in the driveway. I'm at a better financial point now too, so it's not as depressing.
    IMAG0118.jpg
    3264 x 1952 - 2M
    Six in a row makes it GO!
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