[Healeys] Porous block

[Ian Hey]

When I rebuilt my engine I did not know if the block had  the corrosion
problem which would cause oil in the water.  Therefore after the block was
dipped to clean it, I took it to a company who vacuum impregnated the block
with resin (Twice).

 

The process is degrease the block;  insert into a chamber which is then
evacuated;  allow resin into the chamber;  return to atmospheric pressure,
then drain resin;  insert block into tank of water at 95 degrees Centigrade
for twenty minutes.  Resin cures at 60 degrees Centigrade or so.

 

This is apparently standard practice for castings which might have porosity,
particularly aluminium ones, but they happily did my block.

 

The cost was not great (£40 cash about six years ago)

 

Ian

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