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.

Can 2.5 liter head gasket be done in the car?

Featured Replies

Does the 2.5 DOHC motor have to be pulled to replace the head gaskets? I know it makes it easier, but i sure do hate pulling motors.

 

found lots of info about headgaskets but not whether it's doable in the car.

I did mine in the car. It's a pain, especially when it comes to the torqueing procedure, but I was able to do it. I asked my local subaru dealership's service shop foreman and he said they do them in the car.

 

Keith

  • Author

cool, thanks keith. i think i'll try it in the car. i've done others in the car, including the 6 cylinder XT6 and it's tight but doable. any special tools helpful? ratcheting wrenches are awesome for the XT6 for instance.

i hate getting the engine lift ready, hooking it all up, coaxing it all out and...back in again, you get the point.

Is a ratcheting toque wrench. To use on on Subaru's odd torqueing procedure rig a pointer on the socket so you are sure of the rotation.

You will need a 12-point 14mm socket for the head bolts. I used a short 1/2" drive socket, then a short extension. I torqued using my 1/2" torque wrench, then the final tightening was done with a breaker bar. 70k miles and counting.

  • Author

breaker bar for head bolts? you tigthened them past factory specs?

The last two steps of the torque sequence require turning the bolts by 90°. A breaker bar works nicely for this.

why I suggested a pointer if you used a ratchet torque wrench. more and more companies seem to be using this procedure.

  • Author

sounds great, thanks guys.

reinstalling the cams is straight forward?

solid rockers/lifters?

done timing belts before so that's no problem. just need the valve covers and cams to come off.

 

i remove the intake bolts from the head and the a/c mount bolt on the XT6 and prop the intake up and out of the way without disconnecting much of anything, will i be able to pull that off on this motor too?

reinstalling the cams is straight forward?

Yes, just be very careful to mark everything to make sure it goes back into the same place. I found that some thick assembly lube was very helpful to hold things in place while replacing the caps and bolts.

 

i remove the intake bolts from the head and the a/c mount bolt on the XT6 and prop the intake up and out of the way without disconnecting much of anything, will i be able to pull that off on this motor too?
Pulloff and I did that on the EJ22 that we put in his 99 when we did the head gaskets. I can't think of a reason that won't work on the EJ25.

I just pulled out me FIRST Subaru motor! ( yeah for me... I think.)

It was very simple and straight forward.

I'll be putting it back together and putting it back in this weekend.

Heck, the cherry picker hardly knew that little thing was on there!

 

I removed the intake, made getting the torque converter bolts easier. Besides, it all needs a through cleaning up.

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.