oil temp

[Gaz64]

Originally Posted by Whodeeny

So does the oil temperature in the pan differ depending on where the oil temperature is measured? I have an Aviad oil pan and the sensor is placed very low in the pan at about the same elevation as the drain plug. The oil temperature just barely gets to a point that I would call acceptable. I have an oil cooler installed and I blocked off air flow to the heat exchanger trying to bring the oil temperature up. It didn't come up very much. Plus the pan hangs down a little bit so that the lower 20% or so of the pan is probably in the air stream passing under the car. My hope is that the oil that is being pumped to the bearings is actually hotter than that which is at the sensor and what I am seeing on the gauge. Is this just wishful thinking?
BD

That's how all oil pans work.
Airflow around the pan is part of the oil cooling design.

You should move your oil temp sender to the oil filter housing. That will be a better average of oil temp within the engine.

Another way would be to have the sender in a constant fall of oil from the crankshaft, or within an oil drainback within one cylinder head.

[patrickt]

This has done me good for 15 years. That cap tube is running to an old Smiths mechanical oil temp gauge.

[Gaz64]

Patricks car above is a good example.

The sender gets doused with hot oil leaving the crank,cam,heads draining etc BEFORE the oil gets a chance to be cooled off in the pan.

Reading near the bottom of the pan is as cool as the oil could get prior to the oil being picked up again by the oil pump.

Just like a coolant temp sender is fitted at the hottest part of the engine prior to the coolant going to the radiator, the oil temp sender is best located as like Patricks or my case as above.

[patrickt]

It would absolutely never occur to me, when diagnosing funky oil and water temperature changes, to look and see if the gauges were switched. I would have to pull one of the senders out and pop it in a pot of boiling water. Then, when I looked at the dash, I would start laughing. That's one of those goofy stories you put in a car magazine, which I haven't actually seen in years now.

[DanEC]

That could explain the bit of lag in the oil temp reading on my 67 GTX. I hollowed out an oil pan drain plug and mounted the sender in it for the electrical gage (bottom of pan). It does take a bit of driving to get the oil up to temp but after awhile it's up to 180 - 195 thereabouts which should be close to water temp from gage and IR gun readings. But it's only 6 quarts capacity compared to the Cobra's 8 quarts so they seem to warm up at about the same rate overall.

[cycleguy55]

Originally Posted by Gaz64

Patricks car above is a good example.

The sender gets doused with hot oil leaving the crank,cam,heads draining etc BEFORE the oil gets a chance to be cooled off in the pan.

Reading near the bottom of the pan is as cool as the oil could get prior to the oil being picked up again by the oil pump.

Just like a coolant temp sender is fitted at the hottest part of the engine prior to the coolant going to the radiator, the oil temp sender is best located as like Patricks or my case as above.

As noted here ( https://www.460ford.com/threads/gpm-...38/post-833782 ) the standard volume Ford 460 oil pump is rated at 19 GPM - that's 76 quarts PER MINUTE - presumably at highest RPM. At that rate an 8 quart pan will have it's oil replaced 9+ times per minute, but obviously fewer times at lower RPM. I suspect FE and Windsor engines aren't that much different.

Whether bypassed to the pan or pumped into the engine, the rate of flow in the oil pan will ensure any cooling in the pan is minimal. We don't need to worry about whether the oil temperature is off by fractions of a degree, which is the likely effect of such cooling at those flow rates.

My temperature sender is in the lower front wall of the pan - I'm not in the least bit concerned about how accurate it is.

[patrickt]

Originally Posted by cycleguy55

Whether bypassed to the pan or pumped into the engine, the rate of flow in the oil pan will ensure any cooling in the pan is minimal. We don't need to worry about whether the oil temperature is off by fractions of a degree, which is the likely effect of such cooling at those flow rates.

My temperature sender is in the lower front wall of the pan - I'm not in the least bit concerned about how accurate it is.

I would say any oil temperature gauge is better than one that is plumbed in to the coolant system.

[davids2toys]

Originally Posted by patrickt

It would absolutely never occur to me, when diagnosing funky oil and water temperature changes, to look and see if the gauges were switched. I would have to pull one of the senders out and pop it in a pot of boiling water. Then, when I looked at the dash, I would start laughing. That's one of those goofy stories you put in a car magazine, which I haven't actually seen in years now.

It never occurred to me either basically because the gauge was working normally except for taking a little longer to come up to temperature than I thought was normal, and only got real hot when I went above 3000RPM so I was thinking I had an engine problem. As soon as I bought the speed down to 3000 RPM or lower, the temp would come back down to 180 deg

[xb-60]

Originally Posted by patrickt

No, a Cobra is always a "she." Always.

"she"? Why "she"? I know far more blokes who have Cobra characteristics than women.

[patrickt]

Originally Posted by xb-60

"she"? Why "she"? I know far more blokes who have Cobra characteristics than women.

I believe that if you started a poll, over 95% of the members of this forum would vote that they refer to their Cobras as a "she."

[xb-60]

Originally Posted by patrickt

I believe that if you started a poll, over 95% of the members of this forum would vote that they refer to their Cobras as a "she."

Patrick, I'm sure you're correct in that assertion.....however I have never been able to understand why that is the case

How can a load, smelly, uncomfortable, grumpy, uncompromising (OK, that one could be feminine) car be feminine?

[Whodeeny]

Originally Posted by patrickt

I believe that if you started a poll, over 95% of the members of this forum would vote that they refer to their Cobras as a "she."

My wife tells visitors when they stop by that I am out in the garage with my girl friend!
BD