Here's the deal. I parked my FC during the winter. Go figure that MI can have some nasty roads during the summer and the ice and snow only makes those roads worse.

I pulled it back out and did all the fix-up work I had planned to do.

Now, when I am driving, I see the oil pressure gauge reading 50 psi instead of the constant 60 I could've swore that it pushed out before I parked.

What kind of pressure do your stock oil pressure gauges read?

 

@ 3000rpm, on a warm engine, you should see 64-78psi oil pressure.

According to the FSM

 

Can someone please convert that to what the stock Oil pressure gauge on an 87 TII says (you know, the stupid 0 to 8 gauge ). Thanks.

 

You should not waste your time converting on that gauge.....wait...

Stock gauge = POS

Thats sort of a conversion

Get an aftermarket gauge

 

Anywhere near 30 at idle and 60 at 3k is fine. Change your oil, see if that helps. Filter might be loose or anything. Just change the oil and get back to us.

 

no seriously, i have the stock gauge as well...and it works!!!!!! some of them dont, come on dont play games

 

Have you really compared the stock gauge to a aftermarket one? It is a filtered signal. The oil pressure moves alot faster than that needle reacts.

It may work. But for purposes of trouble shooting an oil pressure problem it is the wrong tool to use. The FSM says connect a mechancial gauge to test pressure. It dosnt say to read the in dash gauge.

You can make a quick gauge for under $10 at home depot.

james

 

I am running at 30 psi at idle, but varying from 50-60 at 3200 on the highway.

Thanks for the responses so far.

 

It varies a bit with weight of oil and the filter. But you are probably OK.

 

That is the response I was hoping for.

I am running 10w30 right now and will bump it up come hotter months.

 

On a Canadian model gauge,both N/As and TIIs typically run just below 4 kg/cm2,when cold,rising to about 5 kg/cm2 when hot and idling at about 2kg/cm2(using 20W50).

 

if your oil pressure is dropping after some time of holding the car at a certain rpm then you may want to try the PELLIT MOD.

I did it on my car. costs about 75 cents. My car was reading 15 at idle and then 60 at 3k, then it would drop down to 45 after a few minutes at a constant 3k rpm. Now I read 35 at idle and 60 at anything over 1500 rpms.

 

.....What the hell is the "PELLIT MOD"....

 

It's the oil cooler thermo pellet bypass. Read about it here:

http://fc3s-pro.com/TECH/MODS/mods.html

(Credits to RETed for the site)..

-JB

 

Do you mean the thermo by pass in the eccentric shaft? I believe shiming the oil cooler one would have no effect on pressure.

There is no active link on how to shim or bypass the oil cooler thermo thing.

James

 

Thank Six Rotors, that's exactly how my 87 T2 oil meter responds.

Does good oil pressure generally mean good compression?