Jump to content
Ultimate Subaru Message Board

Recommended Posts

The subject of coolant system burping and hot spots

is a concern with our EJ series engines.

 

I am in the process of replacing my 97 OB's engine with a hybrid EJ25 shortblock and EJ22 heads.

 

To help avoid any issues with trapped air in the coolant system, I am incorporating this addition.

 

I will add a Tee in the line from the coolant passage

to the intake. This tee will have a leg that extends above the intake and terminate in a removable cap.

 

Opening the cap will provide an air escape route, and should allow coolant to properly fill the passages.

 

I also plan on keeping the front end raised but would like feedback on this mod.

 

Even better would be to run this line to a swirl pot (pressure chamber above the engine).

Ala Jaguar and newer turbo Subes.

If anyone has a swirl pot for sale please contact me.

 

I entertain all comments on such modification.

Thanks to dennis111 and his excellent photo-documentary

for this picture.

burper.jpg

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...