[V8] Oil pressure

[Ed Kellock]

Thanks for all your responses.

I haven't done anything with the sender yet, but I did just swap in the
original IC that I have had out for quite some time to do the resoldering
thing on. I don't remember what wasn't working properly at the time, but it
seemed to work okay now. And, unfortunately, the oil temp and pressure
gauges read similarly to the cluster that's been in there for the last
year. Still, they could both be failing in the same way I suppose.

There's a bit of history I haven't shared in regard to my potential low oil
pressure issue... at about the time it occurred, I had mistakenly
overfilled the oil and driven around for at least a day or more before
noticing the oil pressure. I did an oil/filter change right away but it
didn't seem to make a difference.

So, what do you all suppose would be the most likely damaged thing? The oil
pump? The main bearings?

The engine runs and drives great still, doesn't seem to have any unusual
noise or vibration. I feel a little bit more comfortable still running it
since I'm using Mobil1 Synthetic, but I am only driving around town and for
distances less than 10 miles at a time. Also the weather has stayed cooler
here so far.

Anyway, I feel like maybe I'm running on borrowed time with it until I
determine the real problem.

Ed

On Wed, Mar 27, 2019 at 9:54 AM Dave Saad <dsaadme at me.com> wrote:

> Hey V8ers!
> I have some memory of these IC problems. I found that the internal ribbon
> cables are a problem. They are made of solid conductors and seem to crack
> after the cable vibrates for a few decades. I fixed mine by replacing the
> wires with individual stranded wire. Since the cracks can happen above the
> circuit board, resoldering may or may not solve your problem.
>
> And to test - the pressure sender is actually a mechanical rheostat. To
> test the gauge you need to apply appropriate resistance to the terminals at
> the sender connector. If the gauge reads correctly then bad sender.
> And the sender is NLA? Is this one with two senders in one unit? ( I sorta
> remember that...)
>
> Sent from my iPhone
>
> > On Mar 26, 2019, at 7:56 PM, "toml99 at todomundo.com" <
> toml99 at todomundo.com> wrote:
> >
> > Hey Ed, for what it’s worth after swapping in the resoldered IC in the
> 5-speed I still have an intermittent issue with my pressure gauge.  About
> 60% of the time it reads high(5) whether idle or foot on pedal.  Then it
> will go to normal at idle(straight up) and go up to 5 with a tap on pedal
> like it’s supposed to(or like Lago’s done the entire time I’ve owned it).
> Guessing it’s the sender, and since they’re NLA, I just don’t pay attention
> to it.  I do however feel better when it’s reading right.  If you verify
> that you actually have low pressure, then what?  I know you’re in for the
> long haul like me, but first thought would be oil pump….doesn’t sound fun.
> Worn main bearings/screwed.  If you didn’t clean/resolder all the
> connectors on that IC, then I’d do that before anything else, as doing that
> made everything else work the way it’s supposed to and am confident my
> gauge issue isn’t in the cluster(soooo many of those solder joints were
> loose).  Do you have a spare oil sender?  Both my spare motors are sitting
> on very squished out tires and pretty sure I removed one of the senders to
> put on one of the cars, but might have a spare if you don’t for
> testing…..Tom
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