Oil pressure relief valve

[davidxk (David Langley)]

Russ,

The valve you are referring to is known (in Jaguar parlance) as the balance valve. It’s job is to prevent oil starvation if the oil filter clogs. The oil pressure relief valve is something else…

Filter housing spring loaded pressure release question Series II

Glen, There are two relief valves in your oil filter housing. They serve different purposes. The pressure relief valve looks like this on the Series 2: [image] It screws into the base of the housing alongside (and aft of) the spigot to which the bypass hose to the sump is attached. When oil pressure exceeds around 65 psi the valve opens, and oil is diverted back to the sump via the external hose. The second relief valve is located inside the filter housing and consists of a valve which is n…

Hope this helps,
-David