Oil pressure gauge problem??
#1
Oil pressure gauge problem??
Just fitted a Autometer Z-series oil pressure gauge (along with vac/boost and oil temp) to my MY03 WRX.
It's a 0 - 100psi scale model and the sender is screwed in to where the std oil pressure switch normally goes (I had to use a 12cm braided pipe to extended the feed due to space reasons).
Fitting went without drama, but when I start the engine up it's reading approx 80 psi or more !! and goes off the scale (over 100psi) if I rev the engine hard.
When the engine is off and with ignition on the meter does read zero.
Any ideas whats wrong or have I got a knackered gauge or sender unit perhaps??
Thanks,
Chris.
It's a 0 - 100psi scale model and the sender is screwed in to where the std oil pressure switch normally goes (I had to use a 12cm braided pipe to extended the feed due to space reasons).
Fitting went without drama, but when I start the engine up it's reading approx 80 psi or more !! and goes off the scale (over 100psi) if I rev the engine hard.
When the engine is off and with ignition on the meter does read zero.
Any ideas whats wrong or have I got a knackered gauge or sender unit perhaps??
Thanks,
Chris.
#3
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iTrader: (48)
If the oil is cold then 80psi at tickover is normal, as is 100+ psi cold at 2,000rpm +.
When warmed up, depending on oil viscosity, tickover maybe 25-45psi and 2000rpm 70-90psi and a bit more over say 3,000 rpm. Each engine is different and obviously thin oil gives less pressure which in itself is not necessarily a bad thing.
When warmed up, depending on oil viscosity, tickover maybe 25-45psi and 2000rpm 70-90psi and a bit more over say 3,000 rpm. Each engine is different and obviously thin oil gives less pressure which in itself is not necessarily a bad thing.
#4
Harvey, thanks for the feedback, I'll try again, looking at the readings when the engine is hot.
Jess - have a look at http://www.chiark.co.uk/scooby/gauges_pressure.asp
I used Think automotive, good service, hose was with me next day.
... don't forget to use a bit of ptfe tape on all the joints if you do go ahead and do this.
Jess - have a look at http://www.chiark.co.uk/scooby/gauges_pressure.asp
I used Think automotive, good service, hose was with me next day.
... don't forget to use a bit of ptfe tape on all the joints if you do go ahead and do this.
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