Re: Temerature sensor
[Re: rth]
#2352781
08/12/17 11:51 AM
08/12/17 11:51 AM
|
Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
|
^^^ do that & also you might ground the body (not the threaded shank) to a nearby ground (best would be to go all the way to the batt neg post) & see if it straightens out.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: Temerature sensor
[Re: ct440rod]
#2352885
08/12/17 04:31 PM
08/12/17 04:31 PM
|
Joined: Jan 2003
Posts: 15,377 Omaha Ne
TJP
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 15,377
Omaha Ne
|
1. Wrong or bad sending unit. 2. Bad ground on sending unit. 3. Wiring issue. 4. Guage needs to be calibrated. Have a radio shack nearby ?? You can check the gauge and wiring with 3 resistors jumpered between the sending unit wire and ground. 10 ohms of resistance should read near high 30 ohms should be about mid point 80 ohms should read Cold When doing the above test allow the gauge to stabilize for about 2 or so minutes
|
|
|
Re: Temerature sensor
[Re: ct440rod]
#2353210
08/13/17 02:17 PM
08/13/17 02:17 PM
|
Joined: Jan 2003
Posts: 15,377 Omaha Ne
TJP
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 15,377
Omaha Ne
|
So if sending unit reads 474 cold on bench it probably the wrong sensor ? ? Possibly, one would need the resistance spec's for that particular sender though. Your question did give me another thought, One could warm the motor up to operating temp and take a resistance reading on the sender. knowing that 30 ohms should be about mid point on the gauge it might give an indication of whether the sending unit is the culprit. The best approach though is doing the resistor test previously mentioned.
|
|
|
Re: Temerature sensor
[Re: ahy]
#2357359
08/21/17 12:26 AM
08/21/17 12:26 AM
|
Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
|
with a confirmed temp reading I would want an actual 180 water temp at a bare minimum. someone said something about some duct tape needed on shiny surfaces for a correct IR gun reading (not my area just a FYI). yes some gauges can be adjusted, look in the back side of it.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: Temerature sensor
[Re: ct440rod]
#2359323
08/24/17 09:08 PM
08/24/17 09:08 PM
|
Joined: Jan 2003
Posts: 15,377 Omaha Ne
TJP
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 15,377
Omaha Ne
|
New Sensor put not sure where I bought it. I will look for a 40 ohm resistor and see see if gauge goes 1/2 way and go from there. Have a radio shack nearby ?? You can check the gauge and wiring with 3 resistors jumpered between the sending unit wire and ground. 10 ohms of resistance should read near high 30 ohms should be about mid point 80 ohms should read Cold When doing the above test allow the gauge to stabilize for about 2 or so minutes
|
|
|
|
|