Fury1630 wrote:Going back to basics (Dick will correct me if I'm wrong) the engine won't die as a result of no oil pressure. It dies because without pressure the oil in the bearings is not replaced & overheats, the bearings overheat & the engine seizes, so the time you have is measured in tens of seconds.
The normal oil pressure light switch fires at 5psi, so only lights when you REALLY have a problem. I fitted one that lights below 25psi. I had an oil leak a while back & noticed the oil light flickering under acceleration, so I stopped & found the problem before it became serious, but there was no damage to the engine from the short term lack of pressure
Yes spot on an engine that has lost its oil can still produce some pressure as the pump will be damp and it will pump air this may be enough to put a standard oil switch light out if its spinning fast.
The high pressure switch is the way to go (25psi) it will be on when cranking but if it comes on when driving you could save the engine. As I said put a good light just off you line of sight when driving and you will see it. Your be surprised how quick you will react to it. These switches are a direct replacement of most oil switches if you have the twin sender for both gauge and light then you need to install the Tee piece.
