This may be heresy, but you might want to try one of various 'stop
leak/head gasket sealers' for at least a short term solution. These are
usually a silicate solution that solidifies in cracks; they generally
don't work as well as claimed, but they sometimes work at least a little
bit. I've not known them to block any coolant passages because they
don't work THAT well, and there may not be enough flow in this situation
for them to work at all.
My dad worked from the Ford assembly plant that built Mustangs back in
the '60s; he said they threw a bottle of Bars Leaks in every car's
radiator. My engine builder, who worked at Jaguar said they did the same.
This guy at least tries to do 'scientific' comparisons:
https://www.youtube.com/watch?v=fqD4Ha766w8
On 3/16/2024 7:50 PM, Roger Grace wrote:
> Thank you and I do like the look of that lo temp silver solder for
> other applications and maybe if I haven't fixed it.
> There is no definitive crack as such. It is block cast iron porosity.
> It oozes very slowly from an area of about 1.5 x 1 in.
> Access is limited too. Just hoping that there are no other porous areas.
> A proper fix to my mind would be engine out; block stripped and vacuum
> resin impregnation - probably not going to happen for now
> What intrigues me is that this is in exactly the same location as
> Wayne's friend had.
> So it surely is a weakness of this block ?
> Wonder how many others there are out there - some maybe unknown too ?
> I only picked it up by noting the creamy damp gunge in the inside of
> the valve cover.
> Remember too that less than a teaspoon of glycol in the oil triggers
> the oil analysis alarm.
> rg
> rg
>
>
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