Automatic Outback Engine Swap.

Technical Discussions - Got a mechanical problem?

Moderator: bajabob

rsuazopm
Scoobytruck Lurker
Posts: 11
Joined: Sat Sep 14, 2019 7:04 pm

Automatic Outback Engine Swap.

Post by rsuazopm » Sat Sep 14, 2019 7:07 pm

I just bought a 05 Baja manual with a bad engine. I have a donor outback xt automatic as a donor vehicle. Has anyone ever done a engine swap of this sort? Any advice?

Sent from my cp3705A using Tapatalk


Last edited by rsuazopm on Sat Sep 14, 2019 7:07 pm, edited 1 time in total.

tomato_88
Scoobytruck Master
Posts: 177
Joined: Tue Jan 31, 2012 10:42 pm

Re: Automatic Outback Engine Swap.

Post by tomato_88 » Sun Sep 15, 2019 7:02 am

Is your Baja the turbo version already or do you plan to go from NA to turbo?


Sent from my iPad using Tapatalk

rsuazopm
Scoobytruck Lurker
Posts: 11
Joined: Sat Sep 14, 2019 7:04 pm

Re: Automatic Outback Engine Swap.

Post by rsuazopm » Sun Sep 15, 2019 7:14 am

tomato_88 wrote:Is your Baja the turbo version already or do you plan to go from NA to turbo?


Sent from my iPad using Tapatalk
It's already a turbo.... I know they both have ej255 engines. Also there is differences in the intake manifold and intercooler. my concerns are with the fact that one car is a manual and the other is in automatic. I do not know if that would be an issue when I swept the engines. I'm also a little concerned about connectivity to the ECU. Any information would be a great help!

Sent from my cp3705A using Tapatalk


mike-tracy
Scoobytruck Contributer
Posts: 30
Joined: Wed Jun 05, 2019 9:30 pm

Re: Automatic Outback Engine Swap.

Post by mike-tracy » Sun Sep 15, 2019 4:20 pm

The long blocks are the same, so if you have any doubts/concerns about interchangeability, just swap complete intake manifolds and sensors, crank sprocket and driver side top cam gear.

I do remember in the 3rd gen legacys, the autos got different timing markers. Well, some early ones did. Later 3rd gens became more standardized. So as a rule, I would swap the complete intake, timing sprockets, and all sensors. Never had any issues or codes.

In your case, I'd just throw the auto engine in there complete and see if any codes come up, then swap the pieces I mentioned as necessary.
1992 Legacy SS, 5mt and heavily modified
2000 Impreza RS Coupe, RSTI swap in progress
2003 Baja, 4eat & NA. Bone stock and loving it!

rsuazopm
Scoobytruck Lurker
Posts: 11
Joined: Sat Sep 14, 2019 7:04 pm

Re: Automatic Outback Engine Swap.

Post by rsuazopm » Sun Sep 15, 2019 4:34 pm

mike-tracy wrote:The long blocks are the same, so if you have any doubts/concerns about interchangeability, just swap complete intake manifolds and sensors, crank sprocket and driver side top cam gear.

I do remember in the 3rd gen legacys, the autos got different timing markers. Well, some early ones did. Later 3rd gens became more standardized. So as a rule, I would swap the complete intake, timing sprockets, and all sensors. Never had any issues or codes.

In your case, I'd just throw the auto engine in there complete and see if any codes come up, then swap the pieces I mentioned as necessary.
Would it make sense to swap the ECU as well if I leave everything on the automatic the same?

Sent from my cp3705A using Tapatalk


rsuazopm
Scoobytruck Lurker
Posts: 11
Joined: Sat Sep 14, 2019 7:04 pm

Re: Automatic Outback Engine Swap.

Post by rsuazopm » Sun Sep 15, 2019 4:36 pm


rsuazopm wrote:I just bought a 05 turbo Baja manual with a bad engine. I have a donor outback xt (turbo) automatic as a donor vehicle. Has anyone ever done a engine swap of this sort? Any advice?

Sent from my cp3705A using Tapatalk


Sent from my cp3705A using Tapatalk


rsuazopm
Scoobytruck Lurker
Posts: 11
Joined: Sat Sep 14, 2019 7:04 pm

Re: Automatic Outback Engine Swap.

Post by rsuazopm » Sun Sep 15, 2019 4:37 pm




Sent from my cp3705A using Tapatalk


mike-tracy
Scoobytruck Contributer
Posts: 30
Joined: Wed Jun 05, 2019 9:30 pm

Re: Automatic Outback Engine Swap.

Post by mike-tracy » Sun Sep 15, 2019 4:41 pm

No, the auto ecu will freak out if it doesn't detect the auto's TCU. Just run the manual ecu.
1992 Legacy SS, 5mt and heavily modified
2000 Impreza RS Coupe, RSTI swap in progress
2003 Baja, 4eat & NA. Bone stock and loving it!

rsuazopm
Scoobytruck Lurker
Posts: 11
Joined: Sat Sep 14, 2019 7:04 pm

Re: Automatic Outback Engine Swap.

Post by rsuazopm » Sun Sep 15, 2019 4:46 pm

Makes sense....TY.


Sent from my cp3705A using Tapatalk


mike-tracy
Scoobytruck Contributer
Posts: 30
Joined: Wed Jun 05, 2019 9:30 pm

Re: Automatic Outback Engine Swap.

Post by mike-tracy » Sun Sep 15, 2019 4:54 pm

I didn't catch that the donor was an outback XT. That's a different generation of electronics, the 4th gens had Canbus.

I'm positive you'll need to swap intake manifolds and all sensors, and the turbo. Unsure about the timing, I suspect that's the same.
1992 Legacy SS, 5mt and heavily modified
2000 Impreza RS Coupe, RSTI swap in progress
2003 Baja, 4eat & NA. Bone stock and loving it!

tomato_88
Scoobytruck Master
Posts: 177
Joined: Tue Jan 31, 2012 10:42 pm

Re: Automatic Outback Engine Swap.

Post by tomato_88 » Sun Sep 15, 2019 8:18 pm

I agree. Swap the intake and timing gears with your original engine. Should be straightforward and run without issues.


Sent from my iPad using Tapatalk

rsuazopm
Scoobytruck Lurker
Posts: 11
Joined: Sat Sep 14, 2019 7:04 pm

Re: Automatic Outback Engine Swap.

Post by rsuazopm » Mon Sep 16, 2019 1:11 pm

Car arrived today....can't wait to start working on it.Image

Sent from my cp3705A using Tapatalk


tomato_88
Scoobytruck Master
Posts: 177
Joined: Tue Jan 31, 2012 10:42 pm

Re: Automatic Outback Engine Swap.

Post by tomato_88 » Mon Sep 16, 2019 4:32 pm

That is beautiful. I am excited for you. Can you take a picture of the engine bay for us? What intake is on it?

rsuazopm
Scoobytruck Lurker
Posts: 11
Joined: Sat Sep 14, 2019 7:04 pm

Re: Automatic Outback Engine Swap.

Post by rsuazopm » Tue Sep 17, 2019 6:39 pm

The first picture is the engine bay with everything labeled prior to taking it apart. The second picture is with everything mostly disconnected. I'm hoping to have the engine out by this weekend.ImageImage

Sent from my cp3705A using Tapatalk


tomato_88
Scoobytruck Master
Posts: 177
Joined: Tue Jan 31, 2012 10:42 pm

Re: Automatic Outback Engine Swap.

Post by tomato_88 » Tue Sep 17, 2019 11:08 pm

Thanks for the pictures. It looks like it is all stock except for the coolant overflow tank, and intake/cold air. Any ideas what happened to the engine?

Post Reply