Results 1 to 12 of 12

Thread: High oil temp

  1. #1
    Join Date
    May 2007
    Posts
    259

    Default High oil temp

    What causes high oil temp? Water temp and oil pressure seem to be running in the normal range.

  2. #2
    Join Date
    Oct 2017
    Posts
    1,368

    Default

    Need a little more info. What are you considering high? Wet sump/ dry sump. Two barrel / four barrel. New combo old combo? Track conditions etc...

  3. #3
    Join Date
    May 2007
    Posts
    259

    Default

    Wet sump.. 4 barrel ... fresh engine... slick track... engine actually seems to run well just concerned about the 290° oil temp

  4. #4
    Join Date
    Nov 2012
    Location
    Wisconsin
    Posts
    3,119

    Default

    Tight bearing clearances, a spun bearing, plugged oil cooler or oil line that's plugged or crimped.... you need to pull the pan to look.
    Member of the Luxemburg Speedway Hall of Fame
    Class of 2019

  5. #5
    Join Date
    Oct 2018
    Posts
    482

    Default

    Quote Originally Posted by Krooser View Post
    Tight bearing clearances, a spun bearing, plugged oil cooler or oil line that's plugged or crimped.... you need to pull the pan to look.
    Yup. High oil temps indicate oil in shear. Pressure too high or some kind of restriction somewhere.

  6. #6
    Join Date
    Sep 2009
    Posts
    407

    Default

    No matter what your engine is wetsump or drysump you need a oil cooler.Fastest way to kill your engine is not controlling temps. I have used mainly a Setrab 640 cooler will get your oil temps down into the 220-230 range.

  7. #7
    Join Date
    May 2007
    Posts
    259

    Default

    Thats the problem.. it’s that hot with a cooler in it... we could move the prob and probably get it to read a bit lower but that doesn’t change the fact of how hot it is in the engine

  8. #8
    Join Date
    May 2007
    Location
    in a van down by the river
    Posts
    1,892

    Default

    abnormally high oil pressure will cause it.
    as well as running to thick of oil
    what is your oil pressure at WOT
    What weight oil you using?
    Where are your reading your temp from, pan or oil cooler?
    where is your oil cooler located? Does it have a good clean cool air source?

    I have often thought mounting in front of radiator would be best, use the fan suction to pull air through. Deck mounted coolers just do not have a lot of airflow in the direction they are mounted. more like a heat-sink than a cooler.
    Also thought of mounting an electric fan to pull air down through cooler like I have on a buddy's pure stock Trans cooler.
    Last edited by JustAddDirt; 05-28-2019 at 07:47 AM.
    I think there should be lifeguards in the genepool.

  9. #9
    Join Date
    May 2007
    Location
    Kansas
    Posts
    1,940

    Default

    Quote Originally Posted by JustAddDirt View Post
    abnormally high oil pressure will cause it.
    as well as running to thick of oil
    what is your oil pressure at WOT
    What weight oil you using?
    Where are your reading your temp from, pan or oil cooler?
    where is your oil cooler located? Does it have a good clean cool air source?

    I have often thought mounting in front of radiator would be best, use the fan suction to pull air through. Deck mounted coolers just do not have a lot of airflow in the direction they are mounted. more like a heat-sink than a cooler.
    Also thought of mounting an electric fan to pull air down through cooler like I have on a buddy's pure stock Trans cooler.
    covered a lot of it^

    Adding:
    1. Too much oil in oil pan (overfilled) will also increase oil temp as the crank is whipping thru the oil and heating it just like pumping it over and over will heat oil.

    2. Too much oil pump and pump is bypassing a ton of oil to keep pressure down to where it's regulated at. Or too thick of oil for pump and bearing clearance combo and causes pump to bypass a lot of oil.

  10. #10
    Join Date
    Jul 2014
    Posts
    399

    Default

    Crate motor?

  11. #11
    Join Date
    Sep 2009
    Posts
    407

    Default

    What u got for a cooler?

  12. #12
    Join Date
    May 2007
    Posts
    3,436

    Default

    Big race tracks(1/2) mile,wetsump,too much timing,carburetor too lean will all cause high oil temps.I have seen guys put tape over the oil temp guage so they didn't know what it was.You may or may not have a problem.Hammer down on a big track will see 290*

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

All times are GMT -5. The time now is 01:37 PM.


Powered by vBulletin® Version 4.2.0
Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.