m1malachi Posted January 10, 2005 Share Posted January 10, 2005 I just purchased the 97 obw, 75k, and Am thinking ahead to the inevitable hg problem. How complex would it be to swap in a phaseII 2.5l? Link to comment Share on other sites More sharing options...
Commuter Posted January 10, 2005 Share Posted January 10, 2005 It has been done. A guy that use to post here did exactly that with a 97 Legacy GT. He ran into some issues. I have correspondence stored somewhere from him, as I was considering it myself nearly 3 years ago when the HG went on my 97 OB. Let's just say that it is not exactly plug and play. Btw, he used the existing wiring harness and ECU. Commuter Link to comment Share on other sites More sharing options...
coloradosubarules Posted January 10, 2005 Share Posted January 10, 2005 The 2.2 is a bolt in...and they are super reliable. I have 241k plus on mine... Link to comment Share on other sites More sharing options...
m1malachi Posted January 11, 2005 Author Share Posted January 11, 2005 what do you think of the current hg rev. I have read One person who believes it will alst the lifetime of the car. Link to comment Share on other sites More sharing options...
The Dude Posted January 11, 2005 Share Posted January 11, 2005 As much as I dislike the 2.5L DOHC engine, I would say replace the head gaskets, if and when, they blow. Frankly, they may never blow. This engine appears to have a very significant head gasket failure rate. Even so, the majority of 2.5L DOHC engines probably never experience a head gasket failure. Some 2.5L DOHC engine owners have posted that they're on their fourth set of replacement head gaskets. But the vast majority of 2.5L DOHC appear to be permanently repaired after one head gasket replacement. The lastest version of the head gasket seems to be a pretty good "fix". I would have avoided a car with the DOHC engine in the first place. But now that you have it just play out your hand and hope for the best. Link to comment Share on other sites More sharing options...
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