Jim,
Between the size and the softness of the metal (relative to steel), I
doubt it is still in there, even if it got sucked in. It's just as likely
it blew out the exhaust. You might try listening with a stethoscope or
rubber hose and see if you can detect a metallic rattling sound from one of
the cylinders.
Gerard
At 7:46 PM -0700 4/23/03, Jim Rogers wrote:
>Per David Anton's (APT) suggestion ( & per Vizard's book) I had cut off
>the overrun valve on the throttle disc & soldered (obviously not well
>enough) the remaining valve disc (bronze, about 3/8" dia) to plug the
>hole in the throttle disc. THE VALVE DISC IS MISSING after running
>engine for first time yesterday.
>
>The engine only ran for a few seconds several times; it idled extremely
>fast then would stop if let up on choke or throttle. Eliminated all
>causes except the carb - a single HIF6 SU. After removing the SU today
>to tune it, I saw that the plug had come off the throttle disc. I do not
>know if it was sucked into engine, or if it fell out when I moved the SU
>to the work bench. I've checked the floor, but it could have rolled
>anywhere. I pulled the intake manifold & looked & felt in the head. Not
>there.
>
>Could something this size, flat 3/8" dia, go past an intake valve into a
>combustion chamber? If I cannot find the disc I plan on pulling the head
>to check chambers. Is there anywhere else I should check before or while
>I have head off? Engine was professionally built & I assume I will void
>warrantee if I pull head, but I do not see any other solution. Help!
>
>Thanks in Advance.
>
>Jim Rogers
>San Juan Capistrano, CA
>59 Bugeye
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