Hi Rx-7ner's This is me, and just when I thought my problems were over a new one starts. Just after my coolant experience, My pilot bearing crumbles into pieces, now that I seem to have a handle on both of those, I was driving to my mom's and I check my guages and It's reading I have 30 lbs. oil pressure. I stop and check the oil I'm a little low I go straight to the gas station and get some oil. It still says 30lbs. and zero at idle, but it's not running any different or anything. I get home, started up again a few hrs later and the needle is burried way past the 110 psi level.

I check the wire to the gauge it seems ok could it just be the gauge going bad. What I don't get is how do they go bad? and is this common? again any help is appreiated.............


Sincerley, Perfect36 again!

 

For now, pull the sender unit off the engine (14mm wrench IIRC), spray it out real good with some contact cleaner/ brake care/ acetone, whatever, and reinstall it, making sure the threads are nice & clean...If the problem gets a little better, then gets worse again, the sending unit is bad.

You could use a seperate hand-held gage to take a direct reading from the stock location while idling to make sure you don't have a blown front cover o-ring or something else wrong...

 

Sounds like either the sender is bad or the the e-shaft thermo valve has failed.