Skip to content
View in the app

A better way to browse. Learn more.

Ultimate Subaru Message Board

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

foamy oil in the air filter, Yikes

Featured Replies

my 86 gl wagon, carbed engine has got a very oily air filter now, could this be from a sticky pcv valve, all the vac hoses have oil in them too. the engine runs good , no reduction in power, kinda weird

Well replace ther pcv valve. Replace the air filter, and maybe do a compression check wet and dry. you may have some blow-by (not uncommon with age and miles).

 

 

nipper

I doubt he has blow-by. That's extreemely uncommon for these engines. It's probably bad PCV valve and PCV filter, along with accumultion of carbon and other deposits in the breather lines.

 

It's best to replace the larger lines with 5/8" heater core hose, and blow out/replace all the smaller lines. Replace the pcv filter in the airbox and the pcv valve with OEM parts ONLY.

 

GD

  • Author

i think gd may be right , the carb is clean just raw oil on the outside of the filter

Please sign in to comment

You will be able to leave a comment after signing in

Sign In Now

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.