IHADAV8.com - Turbo Buick Tech, and Nonsense

Tech Area => General Buick Tech => Topic started by: Tim Hensley on November 02 2018, 03:47:57 PM

Title: Oil pressure sensor
Post by: Tim Hensley on November 02 2018, 03:47:57 PM
Ok this is the second one that has felled At $7.00 is cheap but the last one cost $200 Tow home from the track. Just oiled down the staging lane.what should I do to stop this madness?
Title: Re: Oil pressure sensor
Post by: Steve Wood on November 02 2018, 03:54:29 PM
either install a mechanical gauge or buy a different brand
Title: Re: Oil pressure sensor
Post by: TexasT on November 02 2018, 04:19:04 PM
Where are you getting a $7 sender? The wrecking yard? I got an acdelco(probably a knock off) off the eBay and I'm pretty sure I paid more than that. I run a brass street tee with the stock sender and the gauge tubing.
Title: Re: Oil pressure sensor
Post by: Tim Hensley on November 02 2018, 04:27:58 PM
I have a mechanical gauge
But in Hawaii I have one choice and Napa dose not stock and $20 shipping for there’s
I’d like to take it out and hook the two wires to the fuel pump relay together
Title: Re: Oil pressure sensor
Post by: Steve Wood on November 02 2018, 05:29:38 PM
why do you want to hook the wires together?
Title: Re: Oil pressure sensor
Post by: nocooler on November 02 2018, 05:49:40 PM
http://www.vortexbuicks-etc.com/oil_pressure_senderoil_pressure.htm (http://www.vortexbuicks-etc.com/oil_pressure_senderoil_pressure.htm)

Is the fuel pump relay good?
Title: Re: Oil pressure sensor
Post by: Tim Hensley on November 02 2018, 07:40:55 PM
My fuel relay is good ,but It provides backup for fuel pump if the relay fails, correct
Title: Re: Oil pressure sensor
Post by: Tim Hensley on November 02 2018, 07:53:06 PM
Ok I have reviewed the wiring diagram for the 3ed time
I don’t need it at all. Correct
Title: Re: Oil pressure sensor
Post by: Steve Wood on November 02 2018, 08:01:40 PM
It does provide a back up circuit if the relay goes bad.  I have not had one on either of my two buicks in the last 20 years, or more.  I think I replaced the relay just for the heck of it a few years back on both cars as a precaution.
Title: Re: Oil pressure sensor
Post by: TexasT on November 03 2018, 08:18:23 AM
Carry an extra relay in the glove box.
Title: Re: Oil pressure sensor
Post by: Tim Hensley on November 03 2018, 01:50:33 PM
And relocate it so I can get to it
Title: Re: Oil pressure sensor
Post by: TexasT on November 03 2018, 03:19:09 PM
Where is yours? I believe it is on the pass inner fender beside some other things. Maybe I've forgotten.
Title: Re: Oil pressure sensor
Post by: Steve Wood on November 03 2018, 03:34:09 PM
While you are at it, Tim, convert all the relays to standard relays so we only need one spare :D
Title: Re: Oil pressure sensor
Post by: daveismissing on November 03 2018, 04:36:13 PM
I have recently been burned by some really sh*tty aftermarket relays, tabs coming off etc.
Title: Re: Oil pressure sensor
Post by: Steve Wood on November 03 2018, 06:12:37 PM
the ones in a box from GM have a smaller box inside that says made in China.  I suspect you can find some quality units from Germany, or elsewhere
Title: Re: Oil pressure sensor
Post by: Tim Hensley on November 05 2018, 12:01:12 AM
My stuff from Summit came in and I have done a few mock-up.
But you have my attention on converting relays to modern relays,is there a thread on this I missed or a write up in Vortex?
Title: Re: Oil pressure sensor
Post by: Steve Wood on November 05 2018, 08:39:29 AM
No, I would have thought John Spina would have done it by now.

Should not be hard to do...just have to take a new relay socket and look at the wiring diagrams and connect the wires accordingly.
Title: Re: Oil pressure sensor
Post by: daveismissing on November 05 2018, 08:55:06 AM
Car makers have moved to newer form factors, are you suggesting those Steve?

I like the Panasonic CB1-M-12V as a traditional relay, potted bottom.
If it says Panasonic, potter brumfield, schrack(TE), Omron its not junk.

Still searching for my ideal sealed socket.

All this is probably worth a discussion of its own
Title: Re: Oil pressure sensor
Post by: Steve Wood on November 05 2018, 09:37:15 AM
No, Dave.  I don't have any problem with that either, for that matter.

I am suggesting to use standard relays that can fit more than one circuit.  GM relays, in our cars, have a multitude of pin locations so one cannot expect to pull a fan relay and have it work in the AC location or fuel pump slot.

Of course, I may be nuts or dreaming and they will all interchange LOL  Or, maybe they just built me unique cars??
Title: Re: Oil pressure sensor
Post by: Tim Hensley on November 23 2018, 11:37:58 PM
Here is my fix 12-24 screw with a.040 hole screwed in this should keep the leak to a small stream if it fails a third time
Title: Re: Oil pressure sensor
Post by: Tim Hensley on November 23 2018, 11:40:15 PM
Also got this cool manifold
Title: Re: Oil pressure sensor
Post by: Steve Wood on November 24 2018, 08:58:54 AM
You musta been a plumber in your last life!  :)
Title: Re: Oil pressure sensor
Post by: Tim Hensley on November 24 2018, 12:48:55 PM
Thanks for the nice words.I did what everyone has done in the past and added a T on the engine stand.Not so easy to get to in the car.
This will be the third switch,cold start is 60 psi with 10-30 or 40 W.I have TA oil pressure adj ,I don’t watch the oil pressure like I should probably but never see it higher than that,hot idle is less than 20 greater than 15.
Title: Re: Oil pressure sensor
Post by: Steve Wood on November 24 2018, 02:50:41 PM
No load on the parts at idle so 15 is more than enough
Title: Re: Oil pressure sensor
Post by: Tim Hensley on November 24 2018, 11:48:19 PM
I have always been happy with idle oil pressure and 60 looked like a good number too, I don’t see any post where people have the sending unit feel.
Title: Re: Oil pressure sensor
Post by: Steve Wood on November 25 2018, 09:44:29 AM
I was going to say none of mine have ever failed, but it dawned on me that it's been years since I had one installed.  I suspect the problem is simply poor manufacturing-at least on replacement units.

These days, I often would rather have a junk yard part than a new or rebuilt part....especi ally the rebuilt junk.
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