Randy,
Such sounds could be coming from main or connecting rod bearings, if so, be
cautious running the engine any more, in fact don't run it, but if it
happens to still run gently, check the oil pressure, then after shut down
drain the oil immediately. if you have noticeable sediment, especially
copper or bronze colored metal powder in the oil, the bearings are shot...
rebuild time. If noise gets louder while running, SHUT DOWN IMMEDIATELY. Low
oil pressure also indicates bearing failure. Check the MG List archives for
additional info on this subject.
Jim
Randy wrote:
> Hi,
> I recently purchased a 71 MGB with engine noise. The previous owner said
> he was test driving after installing a new fuel pump and the engine
> started to make noise. He drive it a few miles to his fathers house and
> parked it, putting it up for sale.
>
> The car starts easily and the noise sounds like a very loud valve tap.
> Any ideas of what would cause a sound such as this? I have not torn an
> engine apart in a long time. I got as far as removing the valve cover in
> hopes of seeing something our of place. That didn't work.
>
> Thank you for any ideas.
> Randy
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