hey everybody.
I'm dealing with a oil pressure senderproblem that's complicated by an aftermarket engine setup. I had a leak from the sender by the oil filter (on an 83K5 w/ an edelbrock 350 performer engine). I originally thought this was the sender for the oil pressure gauge in my dash cluster. I went to my parts shop for a replacement and was told I needed the impediance (ohms) for the gauge in order to match the sender.
This seemed strange to me, I've looked through a lot of parts catalogs, and while these things come with various terminal setups and the option for "w/light" or "w/gauge", and setups for different psi ranges, I did not see any option for different ohm ratings.
After a little reading, I found that my oil pressure gauge sender is by the dizzy, and that what I was looking at by the oil filter was probably the fuel pump safety switch (cuts the fuel pump if oil pressure drops too low). I have a mechanical fuel pump, so my thinking was that it was unnecessary, and I pulled the sender and capped the line. I still get a pressure reading on my gauge, so I think, ha, i beat it!
Now my choke light is on. But it runs smooth, even at high speeds. So after a bit of online digging I came across this thread. It looks like I need that sender after all for the choke light.
So here are my questions:
1. Are there varying electrical resistance options for a two terminal w/ gauge sender? If I have a stock chevy gauge, should any OEM sender with the right terminal and pipe threading work?
2. Is this sender necessary for my choke to operate correctly? (does it matter if the choke is mechanical or electric? If so, how do I check?)
3. Is this sender in any way going to impact fuel delivery if I have a mechanical fuel pump?
4. If I do need this sender, and it's not wired to my gauge, do I just need a simple on/off pressure sender for the other components wired in, or do I need a gauge sender? Either way, is electrical impediance an issue?
My hope is that my setup is all mechanical and this sender isn't effectively doing anything other than keeping my dummy light off, which I can beat by bypassing the sender. If not, and I need it, then I'm hoping I can nail down which sender I need easily, or someone on here can guide me as to what exactly I need!
Thanks in advance for any help!
Rob T
I'm dealing with a oil pressure senderproblem that's complicated by an aftermarket engine setup. I had a leak from the sender by the oil filter (on an 83K5 w/ an edelbrock 350 performer engine). I originally thought this was the sender for the oil pressure gauge in my dash cluster. I went to my parts shop for a replacement and was told I needed the impediance (ohms) for the gauge in order to match the sender.
This seemed strange to me, I've looked through a lot of parts catalogs, and while these things come with various terminal setups and the option for "w/light" or "w/gauge", and setups for different psi ranges, I did not see any option for different ohm ratings.
After a little reading, I found that my oil pressure gauge sender is by the dizzy, and that what I was looking at by the oil filter was probably the fuel pump safety switch (cuts the fuel pump if oil pressure drops too low). I have a mechanical fuel pump, so my thinking was that it was unnecessary, and I pulled the sender and capped the line. I still get a pressure reading on my gauge, so I think, ha, i beat it!
Now my choke light is on. But it runs smooth, even at high speeds. So after a bit of online digging I came across this thread. It looks like I need that sender after all for the choke light.
So here are my questions:
1. Are there varying electrical resistance options for a two terminal w/ gauge sender? If I have a stock chevy gauge, should any OEM sender with the right terminal and pipe threading work?
2. Is this sender necessary for my choke to operate correctly? (does it matter if the choke is mechanical or electric? If so, how do I check?)
3. Is this sender in any way going to impact fuel delivery if I have a mechanical fuel pump?
4. If I do need this sender, and it's not wired to my gauge, do I just need a simple on/off pressure sender for the other components wired in, or do I need a gauge sender? Either way, is electrical impediance an issue?
My hope is that my setup is all mechanical and this sender isn't effectively doing anything other than keeping my dummy light off, which I can beat by bypassing the sender. If not, and I need it, then I'm hoping I can nail down which sender I need easily, or someone on here can guide me as to what exactly I need!
Thanks in advance for any help!
Rob T
