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BRIAN
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The next part requireing attention was the heat exchanger, long ago a engineer??? had fitted the injection elbow to the alloy casting with a copper gasket. the resulting electrolisis caused a lot of damage to the mating faces.
So I set it up on the mill ,A bit of a tight fit!.
And took a skim to see the damage.
The strengh of the flange was still ok but the mating face was shot.
So I bored out the bad area.
Made a spacer from a scrap pully.
Bonded it in with Hi Temp epoxy
Then skimed the surface.
That will fix it
Brian
So I set it up on the mill ,A bit of a tight fit!.
And took a skim to see the damage.
The strengh of the flange was still ok but the mating face was shot.
So I bored out the bad area.
Made a spacer from a scrap pully.
Bonded it in with Hi Temp epoxy
Then skimed the surface.
That will fix it
Brian