Patrick,
when i rebuilt the engine on my sereis V Alpine I found that there was a
lot of red deposit in the waterways of the block. closer inspection
showed it to be casting sand from when the engine was made. Perhaps at
this stage i should apologise for the British workmanship, but then if
they were made like modern Mercedes, we would all be short of words!
I sat the block upside down on the workbench and pulled all the core
plugs. as I said, I used naything I could find to pull out the sand,
most of which was around the back of No. 4 cylinder and when re-
installed, I never suffered from any overheating. Perhaps this is
significant in that most blown engines I have seen have gone on No. 4.
The ammount of sand that came out was quite suprising, it seemed to be
everywhere but was probably a pint (500Ml) glass full.
I have also done this with a couple of other engines so its not a one
off. It takes a fair bit of messing to get it all out but none of them
have overheated.
Remember though, this is only a way of getting heat out of the engine,
you need the radiator, pump etc to be in good working order as well !!
>"Casting Sand", as in the stuff left over from when the engine was
>originally built? Has anyone else run into this problem? I found a big
>difference made when I replaced my pump, but it still gets hotter than I'd
>like. If this is common, I'd consider it, but an leery of messing around
>core plugs. Could you elaborate a little Jeff? Thanks
>-Patrick
>
regards
-- Jeff Howarth
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