oil gauge question

[Bucko]

hi all 1st time for everthing so i hope some one can help with a little question i recently tested a rx7 when it is on tick over the oil pressure was fine but when we road tested the gauge dropped off to just above 0 psi but came back when the throttle was blipped  i was told this was normal and a common fault with the gauge the oil pressure came back on idle is this true !!
thanks

[Kash_]

The oil pressure senders are known to go faulty over time which will make the guage act funny

[Bucko]

thks kash
could you tell me can it be concerted to a pipe fed oil gauge

[trotter]

If it helps, mine does the same - jumps up to correct value (between 4-8kg/cm2) on start-up then drops to zero as the oil warms up. As soon as I go on boost though the oil starts getting pumped through the engine and turbos and all is well again!!

I wouldn;t worry about it too much!! You should be checking the oil level every week anyway!! :p

[Bucko]

thanks trotter that exaclty what it does

[AshRX]

as Kash said it will be the sensor not the gauge. A lot of us put aftermarket gauges in to a oil sandwich plate so you get a true reading of pressure