All,
Need some troubleshooting advice please.
Sealed motor Thunder Roadster, approximately 20 races on the motor. Oil & filter changed after 2 race weekends.
Went to roll out for the feature last Saturday (after running 2 practice sessions) and the Oil pressure gauge read zero. Red light was on the panel. Normally, at idle, around 25#s indicated on the gauge. Revved the motor a couple of times and the red light went out, but gauge still read zero.
Thoughts running though head: just checked and added ½ quart of oil. Oil was 2/3 of the way up sight gauge.
Did I not re-install oil plug: yes I did. What else? Gauge failed? Did the sending until wire fall off or break? Or what?
And ---Decision time. Should I risk it (blowing engine) or sit out race? Well, adrenalin and sitting 2nd in track points….. I went for it.
25 laps later: engine didn’t blow but gauge still at zero.
So my question is, how do you trouble shoot the oil pressure gauge, sending unit/sensor? Where are the components? Is the sensor the brass cylindrical unit mounted on the left-hand side of the oil pan? (and if so, no wonder we run low oil pressure reading trough turns, all the oil is thrown to the right side of the pan) How do I identify the proper wire? Can I place a voltage source on the gauge and test its functionality? etc, etc.
While I'm at it: the Oil temp hasn't worked since I bought the (used) car. How does one go about troubleshooting it?
Thanks in advance all