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> Temperature guage
Montreal914
post Aug 11 2010, 09:03 PM
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Attached ImageHello everyone, after being on the 914 club for almost a year, I finally decided to join the 914 world. I don't know what the story is but there has to be something in common here, other than the main topic of course... (IMG:style_emoticons/default/idea.gif)

Now to the main subject. I was driving on the highway at about 70-75mph for about a half hour yesterday and this is what my temperature gauge was showing. The outside temperature was about 80-85 SoCal.
[img]
As a matter of fact, the guage takes the longest time to get up. So, I guess there is only two things that can be wrong, the guage or the sensor in the taco plate. Is there a simple way to verify them? Is there some measurement that I can do with a standard voltmeter?

Thank you
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rjames
post Aug 12 2010, 10:43 PM
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QUOTE
i have a short red gauge and mine stays up high but never gets to red but it still worries me when i see it that high. i just wanna cover it up so i dont' worry so much lol


That's why I'm told on the later models they moved the red mark further to the right.
That gives you an idea as to how much information the temp gauge actually gives you.
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realred914
post Aug 13 2010, 12:17 AM
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QUOTE(rjames @ Aug 12 2010, 09:43 PM) *

QUOTE
i have a short red gauge and mine stays up high but never gets to red but it still worries me when i see it that high. i just wanna cover it up so i dont' worry so much lol


That's why I'm told on the later models they moved the red mark further to the right.
That gives you an idea as to how much information the temp gauge actually gives you.



these gages need to run with the correct matching sendor, there are several ranges fo sendors an d gages that might have been swapped out, so confirm that they are a mtached set.


for the stock gage, the middle or range is nearly 240F, which is too hot for my oil temp.
note that the early gages had a larger (ie lower) red zone. since these car would run too hot in hot climates, under hard driving, the temp gage often read in the red zone, so rumor has it, the factory fixed the probelm by painting a high temp red zone, so as to not continue freaking out the customers.

I wish my oil would run at 180F all day without teh need for an auxilary cooler.

I suspect the original poster has an innacurate gage. in my climate on a 70-80F ambiaent temp day, after 15 minutes at 65 mph I can see 220F, even more if I am pusshing a grade. that is why i suspect your temp gage reading is not right. (unless you have a very very cool motor!!)

I would calibrate that gage by sticking a known good thermocouple wire into teh sump of a hot engine, via the dipstick hole,and calibrate yoru dash gage to that. they you know what temp yoru really at. a nice target is 180F for sump temp. the temps of north of 230 f are not good for the oil/enigne.

make sure your temp gage is reading right, note with a magic marker or colored tape a true red zone and normal zone for your gage verses a calibration gage. set yoru red line at 240F (that means slow down, pull over cool it off, that is Too hot!!!!) or maybe a bit prior to that. set yoru green happy happy zone for 180-210F.

dont ignore the gage just becuase it dont have numbers, find out what the calibration is, mark the gage, and live within the temp ranges set. if your oil is too hot, chack engine conditon for fualts, failing to fix then you might want to add an auxilary cooler.



for the voltage gage, I really like to read the spark coil voltage, that one is imortant to me. so that is how my volt gage is reading, right off the coil.


have fun, stay cool, be cool, keep your oil cool. thats cool!!!!!!!!
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Montreal914
post Aug 13 2010, 08:51 AM
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QUOTE(realred914 @ Aug 12 2010, 11:17 PM) *

QUOTE(rjames @ Aug 12 2010, 09:43 PM) *

QUOTE
i have a short red gauge and mine stays up high but never gets to red but it still worries me when i see it that high. i just wanna cover it up so i dont' worry so much lol


That's why I'm told on the later models they moved the red mark further to the right.
That gives you an idea as to how much information the temp gauge actually gives you.



these gages need to run with the correct matching sendor, there are several ranges fo sendors an d gages that might have been swapped out, so confirm that they are a mtached set.


for the stock gage, the middle or range is nearly 240F, which is too hot for my oil temp.
note that the early gages had a larger (ie lower) red zone. since these car would run too hot in hot climates, under hard driving, the temp gage often read in the red zone, so rumor has it, the factory fixed the probelm by painting a high temp red zone, so as to not continue freaking out the customers.

I wish my oil would run at 180F all day without teh need for an auxilary cooler.

I suspect the original poster has an innacurate gage. in my climate on a 70-80F ambiaent temp day, after 15 minutes at 65 mph I can see 220F, even more if I am pusshing a grade. that is why i suspect your temp gage reading is not right. (unless you have a very very cool motor!!)

I would calibrate that gage by sticking a known good thermocouple wire into teh sump of a hot engine, via the dipstick hole,and calibrate yoru dash gage to that. they you know what temp yoru really at. a nice target is 180F for sump temp. the temps of north of 230 f are not good for the oil/enigne.

make sure your temp gage is reading right, note with a magic marker or colored tape a true red zone and normal zone for your gage verses a calibration gage. set yoru red line at 240F (that means slow down, pull over cool it off, that is Too hot!!!!) or maybe a bit prior to that. set yoru green happy happy zone for 180-210F.

dont ignore the gage just becuase it dont have numbers, find out what the calibration is, mark the gage, and live within the temp ranges set. if your oil is too hot, chack engine conditon for fualts, failing to fix then you might want to add an auxilary cooler.



for the voltage gage, I really like to read the spark coil voltage, that one is imortant to me. so that is how my volt gage is reading, right off the coil.


have fun, stay cool, be cool, keep your oil cool. thats cool!!!!!!!!


Attached Image
This morning after my ride to work(15 min on hway) here is the reading. Outside temperature is 65-68F. I probed my battery at Idle at the end of the ride and it was at 13V , next I probed the coil and it was at 12V. I guess I should have reved the engine to get the alternator kiking, will do that later today.

I will try to measure the oil temp with a thermocouple.

BTW how do I confirm that the sender and gauge are a match set? Is there an identification somewhere or part number?

Thanks.
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Posts in this topic
Montreal914   Temperature guage   Aug 11 2010, 09:03 PM
underthetire   Well, yes, you can do an ohm reading on the sensor...   Aug 11 2010, 09:12 PM
Montreal914   Well, yes, you can do an ohm reading on the senso...   Aug 11 2010, 09:25 PM
avidfanjpl   I live in Anaheim Hills and that temp reading is s...   Aug 12 2010, 01:09 AM
Montreal914   I live in Anaheim Hills and that temp reading is ...   Aug 12 2010, 10:20 PM
Tom_T   Also remember that the temp travel is shorter on t...   Aug 12 2010, 01:38 AM
Vacca Rabite   that is an oil temp gauge, not a head temp gauge. ...   Aug 12 2010, 08:34 AM
Montreal914   that is an oil temp gauge, not a head temp gauge....   Aug 12 2010, 10:26 PM
Vacca Rabite   I changed out all of the console gauges to 2 1/16...   Aug 13 2010, 07:41 AM
realred914   [quote name='Vacca Rabite' date='Aug 1...   Aug 13 2010, 10:24 AM
Vacca Rabite   just wonder how you buy a calibrated gage and sen...   Aug 13 2010, 10:41 AM
jeffdon   [quote name='Vacca Rabite' date='Aug ...   Aug 13 2010, 10:44 AM
realred914   [quote name='Vacca Rabite' date='Aug...   Aug 13 2010, 11:04 AM
Root_Werks   Also, if your cable is broken to the cooling flaps...   Aug 12 2010, 11:05 AM
Montreal914   Also, if your cable is broken to the cooling flap...   Aug 12 2010, 10:29 PM
Vysoc   On the later type Oil Temp Guages with the shorter...   Aug 12 2010, 01:23 PM
type2man   On the later type Oil Temp Guages with the shorte...   Aug 12 2010, 03:33 PM
mipstien   i have a short red gauge and mine stays up high bu...   Aug 12 2010, 03:54 PM
Vysoc   Thanks for the information especially from the my ...   Aug 12 2010, 07:45 PM
rjames   That's why I'm told on the later models ...   Aug 12 2010, 10:43 PM
realred914   That's why I'm told on the later models...   Aug 13 2010, 12:17 AM
Montreal914   That's why I'm told on the later model...   Aug 13 2010, 08:51 AM


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