I learn so much by watching these videos and reading the comments. I don’t always understand the concepts, but it makes me appreciate my 9 eleven after 24 years of ownership. Thank you !
Thank you for this video, the '71 I bought during Covid always shows way low on the '79 3.0 that is installed and its caused me lots of sleepless nights. No more! One question, would it not make sense to install a T-fitting at the idiot light port and mount the gauge sensor there?
Jarno, No, I would not install a T-Fitting. So the first issue you are facing is the 3.0L SC uses a different pressure sensor than the 71 2.2L engine did and a different gauge calibration.. The next issue is the pressure senders are not transferable between engines as they use different threads. You can buy the pressure sensor for a 1975-77 911 engine which will screw into your 1979 3.0L and should be closer to your installed gauge. I would also just measure the actual oil pressure just like we did on this video. That way you know that you dont have any issues and then just drive the car. Kurt
Hey Kurt , what is your opinion on upgrading the fuse panel to one with the more modern blade type fuses. I kinda like the original bullet type but if the other is superior I would consider it. Mine shows little if any corrosion but it is old. Thanks.
Hi Kevin, I am not a fan of the blade fuse conversion. Spending $500 on a fuse panel that really does not change the reliability of the original part does not make a lot sense to me. Using the ceramic fuses allows me to clean the terminals and re-tension the connector tabs as needed. They also allow me to change fuses without needing a tool to do so as well. lastly it is a small thing but it does change the look of the panel. If its something you really want to do then you are not going to hurt or damage anything. so its up to you. Kurt
@@klassikats thanks Kurt , you said what I wanted to hear. I will stick with the original one and make sure it’s clean and in good order and the fuses are ceramic. Thanks.
A diaphragmatic or bordon tube pressure sender operates most accurately between 1/3 and 2/3rds of the range it is designed to measure. Either side of that, their accuracy suffers. Added to that are sweep errors in an electric gauge.
My car oil gauge registers on the low side, when it’s at idle it just barley comes off the zero mark. How can you tell if it’s an oil gauge problem, or an oil sensor problem, without just replacing parts and hoping for the best? And yes when you step on the gas pedal the needle jumps up on the oil gauge.
More than likely it is going to be a combination of both the gauge and the sender unit as well as the wiring resistance. As long as the gauge moves and the oil pressure light is off you should be all good. In the worst case you can always confirm your actual oil pressure with an external oil gauge just like we did in the video. Kurt
I learn so much by watching these videos and reading the comments. I don’t always understand the concepts, but it makes me appreciate my 9 eleven after 24 years of ownership. Thank you !
Happy to hear that!
Kurt
I ‘lost’ half a bar when I fitted a new sender in my 964, it bothered me for a while, but now I just live with it.
different senders read different amounts. Just so long as the gauge moves a decent amount then you are good.
Kurt
Thank you for this video, the '71 I bought during Covid always shows way low on the '79 3.0 that is installed and its caused me lots of sleepless nights. No more!
One question, would it not make sense to install a T-fitting at the idiot light port and mount the gauge sensor there?
Jarno,
No, I would not install a T-Fitting. So the first issue you are facing is the 3.0L SC uses a different pressure sensor than the 71 2.2L engine did and a different gauge calibration.. The next issue is the pressure senders are not transferable between engines as they use different threads. You can buy the pressure sensor for a 1975-77 911 engine which will screw into your 1979 3.0L and should be closer to your installed gauge.
I would also just measure the actual oil pressure just like we did on this video. That way you know that you dont have any issues and then just drive the car.
Kurt
@@klassikats Thank you for the advice! Always look forward to your videos
Hey Kurt , what is your opinion on upgrading the fuse panel to one with the more modern blade type fuses. I kinda like the original bullet type but if the other is superior I would consider it. Mine shows little if any corrosion but it is old. Thanks.
Hi Kevin,
I am not a fan of the blade fuse conversion. Spending $500 on a fuse panel that really does not change the reliability of the original part does not make a lot sense to me. Using the ceramic fuses allows me to clean the terminals and re-tension the connector tabs as needed. They also allow me to change fuses without needing a tool to do so as well. lastly it is a small thing but it does change the look of the panel.
If its something you really want to do then you are not going to hurt or damage anything. so its up to you.
Kurt
@@klassikats thanks Kurt , you said what I wanted to hear. I will stick with the original one and make sure it’s clean and in good order and the fuses are ceramic. Thanks.
A diaphragmatic or bordon tube pressure sender operates most accurately between 1/3 and 2/3rds of the range it is designed to measure. Either side of that, their accuracy suffers. Added to that are sweep errors in an electric gauge.
Yep I agree, just an indicator not an actual measurement.
Kurt
My car oil gauge registers on the low side, when it’s at idle it just barley comes off the zero mark. How can you tell if it’s an oil gauge problem, or an oil sensor problem, without just replacing parts and hoping for the best? And yes when you step on the gas pedal the needle jumps up on the oil gauge.
More than likely it is going to be a combination of both the gauge and the sender unit as well as the wiring resistance.
As long as the gauge moves and the oil pressure light is off you should be all good. In the worst case you can always confirm your actual oil pressure with an external oil gauge just like we did in the video.
Kurt