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blown cylinder ? 120-130

posted by  timbert on  Mon Oct 7 05:20 CST 2002
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last visit: Mon Aug 13 05:52 CST 2001
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HELP

When starting my '66 122 to drive home from work, after having worked fine on the way to work & at lunch, it emitted a terrible CLANG CLANG CLANG noise from the engine - it sounded like someone hitting the exhasut manifold with a hammer, but it kept running, I had to get home & the noise stopped after 2-3 minutes of low speed driving. But it didn't have it's usual zip.

Once home, I determined that the #3 cylinder was dead by pulling spark plug wires. I took out the spark plug & it was phsyically damamged. I stuck a small magnet in the cylinder & pulled out very small pieces of metallic shavings. Ran a compression test & #1,2&4 all read 165psi but #3 is 90psi.

What has probably happened ?? Could a ring have disintegrated ? a valve break-off ?? could something have gotten in through the valve ?

Will I need to do a complete rebuild (rings & bore) or might I be able to get by just rebuild the head (valves & guides?)

HELP

tim






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New blown cylinder ? [120-130]
posted by  timbert  on Mon Oct 7 05:20 CST 2002 >


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