Quote:
Originally Posted by Yorkshire GOC
Is it not the case the reason OAT was specified was - - - - -
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Probably. But did MGR assume their particular gasket was resistant without testing it? My head had pink-coloured staining around the failed beads, but nowhere else.
The prevalence of HGF in the K16 suggests that adhesion failure of the elastomer beads is the underlying cause. MGR introduced the PRT system to the K16 specifically to mitigate against thermal gradients that were said to be the crux of the problem. Yet the PRT engines continued to have HGF. As illustrated above, many failed gaskets have fully functional fire rings. Nowadays, OAT type antifreeze is the most commonly specified and today's elastomer gaskets are tolerant.
TC