607
Cooling
system
pressure testing and leak detection
Sealing the MGBV8 engine cooling system is particularly challenging
as the system includes a large variety of joints both bolted
and clipped. Of the bolted joints the inlet manifold to cylinder
heads would appear to present the greatest challenge as it requires
the simultaneous sealing of two junctions with four water ports
at opposite corners. In practice, if assembled carefully these
joints appear to be relatively trouble free. The other bolted
junctions, thermostat housing and heater valve, are simple joints
with gaskets and relatively easily made leak proof if the faces
are flat and undamaged and new gaskets are fitted.
More troublesome are the numerous hose to pipe joints. With
8 hoses and 16 joints, sealing requires careful assembly and
checking.
Posted:
201002
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As
many of these will be obscured by later assembly
the checking needs to be carried out while the joint is still
visible and accessible. It also helps if the clips are oriented
in such a way as to permit adjustment when the engine is fully
assembled.
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In
this note Jim Livingstone explains the issues which need to
be addressed if sealing is to be successful.
See our full V8NOTE607 |
