 Acceptable Oil Temp, where should it be? |
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| jr91472 |
 Sep 28 2004, 01:08 PM
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#1
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"I'm pacing myself sergeant..."  Group: Members Posts: 1,205 Joined: 2-August 04 From: McKinney, TX Member No.: 2,437  |
Just curious about what a typical temp range should be for my car. I am running and 1.7L w/ 1.8 pistons and cylinders. I have the standard VDO temp guage with the sender in the oil pan.
While driving the other day, I hovered around 250F and occasionally a little higher. Air temp was in the high 80's with a touring type of driving style (country roads - 3rd and 4th gear stuff). Pretty mild ride that lasted about 1 hour. I guess I am really trying to find out what is an UNACCEPTABLE temp? thanks |
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| SirAndy |
Sep 28 2004, 01:16 PM
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#2
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Resident German Group: Admin Posts: 41,669 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(jr91472 @ Sep 28 2004, 12:08 PM) I guess I am really trying to find out what is an UNACCEPTABLE temp? you found it! 250F is waaaaay too high, you're cooking your motor ... optimal oil temp is between 195 - 215, everything above 230 is no good ... none of our racecars get's over 230 on a hot day *on the track* after several laps. if you get 250+ on a mild 80 deg. day on a "touring" style drive, you got a problem! find out why your car is running so hot ... - are you sure the sending unit and gauge match? - are you sure the gauge is working right? - are you sure the sending unit is working right? - is your thermostat working? - did you check the cylinder finns for dirt/grime and leafs? - is the oil cooler getting all the air when hot? - is the oil cooler plugged? - is your fan missing blades? - what are the head temps? (IMG:style_emoticons/default/huh.gif) Andy |
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| smg914 |
Sep 28 2004, 01:50 PM
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#3
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Sahara Beige Steve Group: Members Posts: 1,962 Joined: 22-February 04 From: Tampa, FL Member No.: 1,695 Region Association: None  |
(IMG:style_emoticons/default/agree.gif) Well said SirAndy.
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| jr91472 |
Sep 28 2004, 01:56 PM
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#4
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"I'm pacing myself sergeant..." Group: Members Posts: 1,205 Joined: 2-August 04 From: McKinney, TX Member No.: 2,437 |
Thanks Andy,
My engine only has about 10K miles on its rebuild. So rule out dirty fins and leafs, other than that, I can't answer any of your other questions. But thanks for the check list. i will start with the simple ones first. Any tips on how to test the temp guage and sender? Oh and thanks for not asking if there is oil in the car (IMG:style_emoticons/default/biggrin.gif) |
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| mike_the_man |
Sep 28 2004, 02:03 PM
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#5
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I like stuff! Group: Members Posts: 1,338 Joined: 11-June 03 From: Regina, Saskatchewan, Canada Member No.: 809 |
One way to test the sender and gauge is to put the sender in boiling water. It should read at whatever temp that water boils down in the USA. Sorry, I only know metric, no idea what temp water boils in
degrees F. (IMG:style_emoticons/default/confused24.gif) |
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| phantom914 |
Sep 28 2004, 02:35 PM
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#6
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non-914-owner non-club member Group: Benefactors Posts: 1,013 Joined: 24-February 04 From: Covina,CA(North ofWest Covina) Member No.: 1,708  |
QUOTE(mike_the_man @ Sep 28 2004, 12:03 PM) One way to test the sender and gauge is to put the sender in boiling water. It should read at whatever temp that water boils down in the USA. Sorry, I only know metric, no idea what temp water boils in degrees F. (IMG:style_emoticons/default/confused24.gif) 212 degrees F at sea level. Andrew |
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| mike_the_man |
Sep 28 2004, 02:41 PM
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#7
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I like stuff! Group: Members Posts: 1,338 Joined: 11-June 03 From: Regina, Saskatchewan, Canada Member No.: 809 |
Well thats just silly. 100C makes so much more sense! You Americans are crazy! (IMG:style_emoticons/default/wink.gif)
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| jr91472 |
Sep 28 2004, 02:44 PM
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#8
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"I'm pacing myself sergeant..." Group: Members Posts: 1,205 Joined: 2-August 04 From: McKinney, TX Member No.: 2,437 |
This has been enlightening. (IMG:style_emoticons/default/huh.gif) Apparently at some point the thermostat was removed completely. Thus the flaps are in the default position? Is this a common mod for hot climates?
So does this mean that the flaps are wide open all the time (i.e. allowing cool air in from the blower?). Or does it mean that the passenger side cylinders are getting no air and the oil cooler is getting all the air? Sorry it has been too long and I can't recall how the flaps operate. By the way, fan has all the blades. thx |
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| mike_the_man |
Sep 28 2004, 02:51 PM
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#9
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I like stuff! Group: Members Posts: 1,338 Joined: 11-June 03 From: Regina, Saskatchewan, Canada Member No.: 809 |
No thermostat should have the flaps fully open, so the engine and oil cooler is getting maximum air flow. Not good for warm up conditions, but it shouldn't cause your car to run hot.
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| jr91472 |
Sep 28 2004, 03:02 PM
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#10
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"I'm pacing myself sergeant..." Group: Members Posts: 1,205 Joined: 2-August 04 From: McKinney, TX Member No.: 2,437 |
Ok, so time to test the sensor. i don't supposed you can remove the sensor without draining the oil eh?
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| mike_the_man |
Sep 28 2004, 04:19 PM
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#11
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I like stuff! Group: Members Posts: 1,338 Joined: 11-June 03 From: Regina, Saskatchewan, Canada Member No.: 809 |
QUOTE(jr91472 @ Sep 28 2004, 01:02 PM) Ok, so time to test the sensor. i don't supposed you can remove the sensor without draining the oil eh? Nope. Kind of a PITA isn't it! |
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