I am going to do some tests tomorrow night (have been away all weekend).
If there is anything nasty up with the engine I happen to have a spare
from a dolomite that I will get a garage to fit. I imagine swapping the
engine will probably be cheaper and easier than fiddling with engine
internals.
Will give you all an update tomorrow, thanks everyone for the
suggestions.
cheers
John
--- steve@49jackson.freeserve.co.uk wrote:
> --- In spitfire-enthusiast@y..., John Hobson <goalie_john@y...> wrote:
> > Well it had to happen didn't it, Saskia has been back on the road
> for 6
> > days nows and a new problem has reared it's ugly and expensive
> looking
> > head.
> <snip>
>
> John
>
> I hope I'm wrong, but a knocking noise under load.... rising and
> falling with engine speed....sounds horribly like big end bearings to
> me. If it's a 1500 motor ( I think you said it is) - sort it out
> before the conrods punch breather holes in the side of the block.
>
> Sorry to be such a pessimist - maybe it's something else!
>
> Steve J
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