I would be suspicious of your temp measuring system, that temp doesn't add up, Are you in Alaska?
| Slant Six Forum https://slantsix.org/forum/ |
|
| What's a healthy trans fluid temp? https://slantsix.org/forum/viewtopic.php?f=20&t=61210 |
Page 1 of 1 |
| Author: | SpaceFrank [ Thu Jun 01, 2017 8:14 pm ] |
| Post subject: | What's a healthy trans fluid temp? |
This is probably a question I should have asked years ago. We run a pretty big trans cooler on the LeMons Dart, which has a mostly stock 904 with a deep pan. I only say "mostly" because the valve body may have been mildly breathed-upon for firmer shifts when I had it rebuilt back in college... but I honestly don't remember. It's all stock clutch packs, no V8 guts or anything. We leave it in Drive for races. I don't think I've ever seen the trans temp get above 150 °F during a race. More often it's closer to 140. Is that too cool? |
|
| Author: | Dart270 [ Fri Jun 02, 2017 4:18 am ] |
| Post subject: | |
Yes, it can be too cool. You can look up the optimal operating temp for an old school automatic, but IIRC it is 180-200 F. However, if it has lasted this many races, I might just leave everything alone! Lou |
|
| Author: | jcc [ Fri Jun 02, 2017 7:12 am ] |
| Post subject: | |
I would be suspicious of your temp measuring system, that temp doesn't add up, Are you in Alaska?
|
|
| Author: | Dart270 [ Fri Jun 02, 2017 9:00 am ] |
| Post subject: | |
Yeah, I agree it does sound very low for something getting that kind of workout, even with a big cooler. Might be the sensor is bad. Are you reading temp on the fluid output of the trans or closer to the input?? You want the output... Lou |
|
| Author: | slantzilla [ Fri Jun 02, 2017 9:20 am ] |
| Post subject: | |
180-200 is optimal. 160 is not unusual. I can read trans temp on my Challenger, it rarely gets above 180, and it takes quite a lot of driving to get it there.
|
|
| Author: | Danarchy [ Fri Jun 02, 2017 12:04 pm ] |
| Post subject: | |
Sounds like a WHACK gauge! What does the "Water" temp run at usually? |
|
| Author: | SlantSixDan [ Fri Jun 02, 2017 1:48 pm ] |
| Post subject: | |
Also, what kind of trans fluid are you running? Some people are under the mistaken belief that Type-F fluid is "superior" -- it is not; it's an archaic fluid that is severely inferior in absolutely every performance and durability characteristic. Today's Dexron-VI handles higher temperatures than yesterday's fluids (viscosity doesn't change, varnish and sludge don't form). |
|
| Author: | SpaceFrank [ Fri Jun 02, 2017 5:43 pm ] |
| Post subject: | |
Dart270 wrote: Yeah, I agree it does sound very low for something getting that kind of workout, even with a big cooler. Might be the sensor is bad. Are you reading temp on the fluid output of the trans or closer to the input?? You want the output...
Lou 
Yeah, the temp sensor is mounted in the pan. I suppose that's not a very useful measurement, then. |
|
| Author: | jcc [ Fri Jun 02, 2017 6:53 pm ] |
| Post subject: | |
No, that should work, is it electrical or mechanical? Do you have access to a thermal temp gun, just read the pan when hot, it should be close/slightly lower then your gauge reading,just to verify whats going on. |
|
| Author: | Killer6 [ Sat Jun 24, 2017 8:46 pm ] |
| Post subject: | |
I just checked out a '10 F-150 Lariat w/the trans temp gauge function, I hit trucks and cars w/a pretty harsh road test, if it's gonna slip or shudder hot I want it to be on Me....not a customer after purchase...happened once on a Chebby to Us already( converter clutch bits plug-up the cooler). On the test (approx. 9 miles) the temp was hovering right around 150deg. when I pulled it into My bay. I wouldn't lose one millisecond of sleep over it. |
|
| Page 1 of 1 | All times are UTC-07:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|