1969 383 oil pressure sending unit

[paul1969cars]

Hi

Im just wondering what is the correct oil pressure sending units for a stock 1969 383 4 spd car. I took a snip of this on the forum and posting it.

The top image is what I had on the car. Dont know if the dash board cluster matters or not. I have non rally dash in roadrunner

I thought he sending unit was the bottom image

What is the difference and what is correct.

 

[dadsbee]

Top is for standard dash idiot light, lower is for Rallye dash with a gauge.

 

[paul1969cars]

Top is for standard dash idiot light, lower is for Rallye dash with a gauge.

thanks

be well

 

[Black_Sheep]

The "idiot light" sender on my '69 looks different than the one in the OP, it is shorter with a blue plastic insert instead of black. I believe it was original to the car..

 

[paul1969cars]

thanks

 

[Richard Cranium]

The "idiot light" sender on my '69 looks different than the one in the OP, it is shorter

Obviously, yours is less manly.

 

[Black_Sheep]

Obviously, yours is less manly.

Great, now I have an oil sensor inferiority complex…

 

[Cranky]

Obviously, yours is less manly.

Great, now I have an oil sensor inferiority complex…

 

[oldkimmer]

The "idiot light" sender on my '69 looks different than the one in the OP, it is shorter with a blue plastic insert instead of black. I believe it was original to the car..

View attachment 1779883

Looks like a Standard Motor Products sending unit to me. Kim

 

[Vaanth]

Hi

Im just wondering what is the correct oil pressure sending units for a stock 1969 383 4 spd car. I took a snip of this on the forum and posting it.

The top image is what I had on the car. Dont know if the dash board cluster matters or not. I have non rally dash in roadrunner

I thought he sending unit was the bottom image

What is the difference and what is correct.

View attachment 1779880

The sending units shown in that picture are aftermarket, and are as listed for an oil indicator light or oil pressure gauge.

The oil gauge sender is a variable resistor that changes resistance between ~9 ohms and ~72 ohms depending on the applied pressure. The oil light sender is a pressure sensitive switch that is closed to activate the light until oil pressure reaches higher that ~8 psi.

Typical original Chrysler units for gauge or light are shown in the following image:

The gauge unit is stamped "INTROL", which was Chrysler's Huntsville Electronics Division. This style was used in the mid-60s through the mid-80s eight cylinder applications. Earlier 60s units and late 80s units are similar but have a post terminal instead of a spade terminal.

Typical aftermarket units for gauge or light are shown in the following image:

The aftermarket unit for the oil indicator light is typically larger than original, but some aftermarket such as Standard Motor Product's "premium" line (PS11) looks similar to original:

In the late 70s, the sending units for the oil indicator changed to a three spade terminal device. One terminal is for the light indicator wire and the other two terminals are for a switch that switches power on and off to the choke electronic control unit when pressure is present or not. The following image shows an original sender/switch of this type and a factory junction block for connecting the light sender/switch in conjunction with gauge sender:

The following image shows the original block with both light sender/switch and gauge sender in my 79 Newport E58 360 with factory gauge:

Pardon the mess, it's been in use for 30 years since I rebuilt the engine, and I haven't cleaned it well of late. I added the angle to provide more room around the distributor for the vacuum advance on the regular distributor when I removed the Electronic Spark Advance (ESA). The sender/switch and gauge sender plus the junction block are original 1979 parts.

FYI...

 

[paul1969cars]

Thanks for this very informative description