jarrid_gross wrote:-
>The Rootes Alpines cars had 40 PSI relief valves installed until 1968,
>when many of these valves began to stick open, and cause engine failures.
>The quick fix was to re-design the oil filter base and relief valve, and
>also this new valve had a higher relief pressure to make better
>advantage of the higher capacity 5 main oil pump.
>The "Hunter" type base and relief valve makes 55 to 60 PSI
>oil pressure, and is far less likely to stick open.
So can we just bolt on the later type filter base to our pre '68 1725cc
blocks ??
and....
how does the valve in the timing chain oil feed affect things...?
is this valve more critical for *startup* oil pressure?
Confused (and Engineless) in Caledonia,
Andy
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