The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

90 oil filter housing ???

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Pressure relief valve. Yes, you must have one.
Let me try again. That may be a thermostat for the oil, and the pressure relief is the one to the right with the flat little cap.

Well, that should flush out the right answer soon enough. :confused:
 
(as per your picture) >The small one on the right is the pressure relief valve, and the large one on the left (the one your missing) is the oil cooler bypass valve.


Tom
 

Attachments

You must be registered for see attachments list
actually, that gold thing that is referred to as a bypass valve is actually a thermostat. when the oil gets to a certain temp, it opens, and sends the oil to the heat exchanger.
 
its definatly not a thermostat. It opens if there is a pressure drop after the oil cooler. To keep the engine from starving oil. Ive never seen anything to hint to anything related to heat in the mechanics of one. Simply a valve covering a hole held by a spring.
 
alexg1323 > its definatly not a thermostat.

ken inn > actually, that gold thing that is referred to as a bypass valve is actually a thermostat.

Whatever you want to call it. It does regulate the oil passage thru the oil cooler utilizing temperature changes as the determining factor. :D

Tom
 

Attachments

You must be registered for see attachments list
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Latest Classifieds

  • For sale 2g 2G Mishimoto Radiator & Fan Shroud
    2G Mishimoto Radiator & Fan Shroud $200 + shipping and paypal feesYou must be registered to...
    • jersygsx
    • Updated:
    • Expires
  • For sale 2g 2G Power Window Switches ( tested and hardware included )
    2G Power Window Switches $55 + shipping and paypal fees* Tested 6/2/26 * Hardware included *...
    • jersygsx
    • Updated:
    • Expires
  • For sale VIRGIN 4G63 6-BOLT TURBO HEAD
    Came off a virgin stock AWD Auto 1G DMS (91), also have matching block and crank which are also...
    • The_Partout_Spot
    • Updated:
    • Expires
  • For sale 1G DSM 4G63 6-BOLT TIMING COVER
    Used, see condition in photos. Buyer covers shipping / fees.
    • The_Partout_Spot
    • Updated:
    • Expires
  • For sale Garage clean out
    Changing setups on the car and getting rid of some stuff as well that's been laying around. Will...
    • 92GSXtacy
    • Updated:
    • Expires
Back
Top