salve7 Posted December 1, 2010 Share Posted December 1, 2010 I don't know if I have a 2.5 dohc or a 2.2 sohc... I am sure there is an easy way to tell but all my internet searching has found nothing (well something but I'm still confused). Any help would be appreciated by this newbie. I have an 97OB Legacy. Thanks, Jay Link to comment Share on other sites More sharing options...
GeneralDisorder Posted December 1, 2010 Share Posted December 1, 2010 You have a DOHC 2.5 known as the EJ25D. GD Link to comment Share on other sites More sharing options...
salve7 Posted December 1, 2010 Author Share Posted December 1, 2010 That is what I assumed. Thanks for the help! Link to comment Share on other sites More sharing options...
Fairtax4me Posted December 1, 2010 Share Posted December 1, 2010 (edited) 97 outback should have a 2.5 DOHC engine. However, engine swaps are very common on those because the 2.5s mostly suck, or blow, depends on how you look at it. Anyway. EJ engine Identification: Look on top of the engine block next to the alternator. There will be a casting that says either EJ** The stars being numbers. Its about 2 inches wide and 3/4" inch tall. As seen here. EJ20 will be a 2.0 liter engine. Ej22 2.2, Ej25 is a 2.5, etc. Cylinder head identification is easy as well. A DOHC engine will have 2 cams in each cylinder head which means it has to have 4 drive sprockets on the front of the engine. The sprockets are covered by black plastic to protect the timing belt and components from dirt/debris/etc. The DOHC covers will have a bowtie shape, and you can count four dimples in the cover, 2 on each side of the engine. A SOHC head has one camshaft per head, so will only have one dimple on each side. Edited December 1, 2010 by Fairtax4me Link to comment Share on other sites More sharing options...
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