how to set tune adjust pointer/needle position to proper place
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how to set tune adjust pointer/needle position to proper place
on the Fuel, Temp, Pressure display, what is the voltage, or resistance to ground for full, half, empty: 100* 200* 260*: 20 40 60 80psi:
I have removed my needles and have replaced them with C6 ZO6 needles that also are lit... but I need to know the voltage in or resistance reedings so I can set the pointer to the correct place.
https://www.corvetteforum.com/forums...ight-70-a.html
I have removed my needles and have replaced them with C6 ZO6 needles that also are lit... but I need to know the voltage in or resistance reedings so I can set the pointer to the correct place.
https://www.corvetteforum.com/forums...ight-70-a.html
Thread Starter
Race Director
Joined: May 2003
Posts: 10,956
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From: California
OK, found the Fuel numbers over at Wilcox Corvette
Here they are for anyone else that may need them some day..
For any fuel gauge from 1963-1982 to function properly you must have 0 ohms when empty, 45 ohms at one half a tank and 90 ohms at full tank.
Now just need water temp and oil pressure
Here they are for anyone else that may need them some day..
For any fuel gauge from 1963-1982 to function properly you must have 0 ohms when empty, 45 ohms at one half a tank and 90 ohms at full tank.
Now just need water temp and oil pressure
Last edited by pauldana; Apr 1, 2019 at 02:48 PM.
Thread Starter
Race Director
Joined: May 2003
Posts: 10,956
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From: California
oil pressure found at CF:-)
The electric oil pressure sender output should read.
0 ohms = 0
45 ohms = 40 lbs.
90 ohms = 80 lbs.
Ohm out the sender and see what it's putting out.
On the electric gauge..
If the needle is at 3 o'clock, it is missing the input ohms signal, has power and ground so check for a break in the sending unit wire.
If the needle is at 0, the sending unit wire is grounded out. The gauge has power and ground.
If the needle is at 10-15 lbs constant, the resistor bad on the back of the gauge. The gauge has power and ground.
water temp left
The electric oil pressure sender output should read.
0 ohms = 0
45 ohms = 40 lbs.
90 ohms = 80 lbs.
Ohm out the sender and see what it's putting out.
On the electric gauge..
If the needle is at 3 o'clock, it is missing the input ohms signal, has power and ground so check for a break in the sending unit wire.
If the needle is at 0, the sending unit wire is grounded out. The gauge has power and ground.
If the needle is at 10-15 lbs constant, the resistor bad on the back of the gauge. The gauge has power and ground.
water temp left
Thread Starter
Race Director
Joined: May 2003
Posts: 10,956
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From: California
Wilcox again...
TEMP OR YEAR MARK
OHMS
100 793 219
200 146 103 85
[img]blob:https://www.corvetteforum.com/3e4058d3-6d1e-43e5-86c5-aadd1053adc1[/img]1980- 1982
1977 and 1978-1982 Center Gauge Cluster Printed Circuit.
1ST MARK
2ND MARK 3RD MARK
Front Edge of
Red 69
Back Edge of 59 Red
TEMP OR YEAR MARK
OHMS
100 793 219
200 146 103 85
[img]blob:https://www.corvetteforum.com/3e4058d3-6d1e-43e5-86c5-aadd1053adc1[/img]1980- 1982
1977 and 1978-1982 Center Gauge Cluster Printed Circuit.
1ST MARK
2ND MARK 3RD MARK
Front Edge of
Red 69
Back Edge of 59 Red
