water temp sending port
#1
water temp sending port
I am installing gauges. Which temp port in these pictures is the one that I need? I'm guessing the lower one behind the water pump. '69 ninety eight.
Thanks,
Neil
Thanks,
Neil
#2
No, it would be the one with two wires on it. The smaller diameter one behind the water pump is for the oil pressure switch.
However, I am not sure why your switch has two wires. Does it have the auto temp control?
However, I am not sure why your switch has two wires. Does it have the auto temp control?
#4
#6
#7
The temperature switch is located next to the thermostat housing not the water pump.... The switch near the water pump is for oil pressure according to the 69 shop manual..... Don't know why your oil switch would be located near the oil filter unless it was added as a back up (possibly a more direct reading)..............
#8
The water temp sensor is definitely the one with the two wires. I just installed aftermarket gauges in my Delta. I have an Edelbrock intake manifold and was able to use an extra hole in the manifold for the gauge sensor, so now I have the gauge and the stock cold/hot idiot lights. I don't know if that's an option with the stock manifold, but it would be nice to have both if possible.
#9
Ok....I was 'guessing' that logically the oil pressure unit would have been near the o-pump. This will make it easier to run the wire for oil pressure along the water temp wire. The 2 wires for the w-temp must be separate for the cold and hot light's. The green wire the green 'Cold' light? Or am I being too logical again.
Thanks,
Neil
Thanks,
Neil
#10
Light Green is Cold.
The logical thing would be to take five minutes to look in the Chassis Service Manual instead of guessing.
- Eric
#11
Thanks.
Neil
#13
We all make 'em sometimes.
Au contraire, mon ami.
1. Half the time we're wrong, or argue with each other so much, you don't know whom to believe.
2. We usually don't draw good pictures.
3. Expensive? Not at all - just go to WildAboutCars, and your manual will be right here, downloadable for free.
There is no doubt that a printed manual is better, but the digital version is adequate to answer the vast majority of questions.
Awesome!
Awesomer!!!
- Eric
1. Half the time we're wrong, or argue with each other so much, you don't know whom to believe.
2. We usually don't draw good pictures.
3. Expensive? Not at all - just go to WildAboutCars, and your manual will be right here, downloadable for free.
There is no doubt that a printed manual is better, but the digital version is adequate to answer the vast majority of questions.
Awesomer!!!
- Eric
#15
And prior to the move to "corporate" motors in the late 1970s, each GM division had their own proprietary engine designs. These had nothing in common, despite similar displacements.
#16
Welcome to Oldsmobile, Neil. Nothing like a big 98!
#17
We all make 'em sometimes.
Au contraire, mon ami.
1. Half the time we're wrong, or argue with each other so much, you don't know whom to believe.
2. We usually don't draw good pictures.
3. Expensive? Not at all - just go to WildAboutCars, and your manual will be right here, downloadable for free.
There is no doubt that a printed manual is better, but the digital version is adequate to answer the vast majority of questions.
Awesome!
Awesomer!!!
- Eric
Au contraire, mon ami.
1. Half the time we're wrong, or argue with each other so much, you don't know whom to believe.
2. We usually don't draw good pictures.
3. Expensive? Not at all - just go to WildAboutCars, and your manual will be right here, downloadable for free.
There is no doubt that a printed manual is better, but the digital version is adequate to answer the vast majority of questions.
Awesome!
Awesomer!!!
- Eric
Thanks for the info....so far classic olds forum has been more helpful to me than my Buick chums.
Neil
#19
The water temp sensor is definitely the one with the two wires. I just installed aftermarket gauges in my Delta. I have an Edelbrock intake manifold and was able to use an extra hole in the manifold for the gauge sensor, so now I have the gauge and the stock cold/hot idiot lights. I don't know if that's an option with the stock manifold, but it would be nice to have both if possible.
Neil
#20
Oil PRESSURE senders will work correctly when mounted in a tee. Water TEMPERATURE sensors will not. The temp sensor must be mounted in a flowing stream of coolant. The tee is a dead end and will not produce correct readings on the sender, as you apparently found out. If your intake does not have sufficient ports to install multiple senders, you can get a fitting that splices into the upper radiator hose that has a bung for a sender. Not ideal, but better than a tee fitting.
#21
Oil PRESSURE senders will work correctly when mounted in a tee. Water TEMPERATURE sensors will not. The temp sensor must be mounted in a flowing stream of coolant. The tee is a dead end and will not produce correct readings on the sender, as you apparently found out. If your intake does not have sufficient ports to install multiple senders, you can get a fitting that splices into the upper radiator hose that has a bung for a sender. Not ideal, but better than a tee fitting.
Neil
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