Randy,
That much oil pressure does not usually indicate main or connecting rod
bearing failure. In fact I think it indicates that the bottom half is okay.
Restoring an MG demands some very entertaining detective work. Some evidence
up top says look in the head. Someone else mentioned a stuck exhaust valve.
Using your shop manual, check the valve gaps. You may also want to get an
inexpensive compression tester that help you evaluate the rings, valve seats
and valves.
Jim
Randy wrote:
> Hi List,
>
> I was really impressed by the response. In a matter of hours I had five
> responses. I wish I could be as helpful. In order to clear up a few
> things:
>
> I did run the engine against opinion, but did not know how to get more
> accurate information.
> The engine starts fine. Oil pressure is above the first dash mark
> before the 50. It took 35 seconds to register on the meter. The noise is
>
> a sharp loud tap that does not get louder in the minute I ran the
> engine. It does increase in rhythm with rpm.
>
> I have only removed the valve cover. Did not have a clue what to look
> for except a loose bolt. There is plastic on the inside of the valve
> cover where the hold down bolts go through. Both were broken at an angle
>
> and the pieces of plastic I retrieved. They were laying inside the valve
>
> cover. There are washer type things on top of the springs, one was
> missing about 20%. The break line was jagged, broken part was not
> visible.
>
> So as you may have noticed, I am a 47 year old wantabe motor head that
> thought I could remove a few items and fix this puppy. I can find no one
>
> in my Melbourne, Florida area that has any idea about MG's. Can't find
> anyone to even balance my wire wheels. Spent $45 for a balance job that
> told me all my original wheels were bent and two tons of weight may make
>
> thing fine. Needles to say, I had to stop and pry off the weights to ge
> home. I then used the old pencil and support to check the roundness and
> wobble. It showed true within a sixteenth of an inch.
>
> Thanks for the help and additional information.
>
> Once again,
> Randy
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