Huh, you'd have saved some dough if you'taken the valve cover off
yourself but that's another story. Unless you over-revved it and
floated the valves, it sounds like the rocker arm bushing is shot and
the rocker is loose on the shaft. Check by wiggling the rocker when the
valve is closed. Check 'em all.
Cheers,
CR
MGMagnette@aol.com wrote:
> I posted a few weeks back that my MGB had a sudden and terrible backfire. A
> leak down proved that one cylinder had no compression at all and it was
> blowing out the valve. Oh, damn, head is coming off right?
>
> Well the mechanic takes the valve cover off and we find that the pushrod is
> wedged up with the rocker arm! Take the rocker arm off, the rod is plain
> straight... drop it back down... put the rocker back on... the MGB is good
> to go!
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