dp213 Posted November 19, 2016 Share Posted November 19, 2016 Not having fun with this one. The 2.5 was bad so I picked up a 2.2 for it. Rolled the dice and lost. Motor was supposed to be good and from a wrecked car. Put it in and bad rod knock. Then, being not very happy, I grabbed some parts I had laying around, a good 2.5 block and some good 2.2 heads and threw them together with new everything. Put it in and now it sounds like #4 slight rod knock. Pulling everything apart today to hopefully install a good 2.2 I am going to go look at and hear run. Link to comment Share on other sites More sharing options...
Rooster2 Posted November 19, 2016 Share Posted November 19, 2016 I hope your luck improves. Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted November 20, 2016 Share Posted November 20, 2016 (edited) yeah, good luck ducking in to remind you - weak tb tensioners can sound like rod knock or piston slap sometimes. Edited November 20, 2016 by 1 Lucky Texan Link to comment Share on other sites More sharing options...
dp213 Posted November 20, 2016 Author Share Posted November 20, 2016 Both motors had new timing everything done with 2 bolt tensioners. Link to comment Share on other sites More sharing options...
dp213 Posted November 22, 2016 Author Share Posted November 22, 2016 Do the pistons in the early 2.5 blocks come up over the deck? Link to comment Share on other sites More sharing options...
lmdew Posted November 22, 2016 Share Posted November 22, 2016 I have two sets of COMTEC H/G for the 2.5 block and 2.2 heads if you need them. I was going to build a high compression motor but have not done it. The 98 Impreza OBS I picked up for my Daughter with a thrown rod took 3 engines to get a good on. You never know with used engines, but over the years and 40+ junk yard engines I've only had 2 that did not work out. Larry Link to comment Share on other sites More sharing options...
Rooster2 Posted November 22, 2016 Share Posted November 22, 2016 Do the pistons in the early 2.5 blocks come up over the deck? Yes they do. This results in thicker then normal head gaskets for the early 2.5 motors, and resulting head gasket failure problem. Subaru revised the head gaskets several times to make improvements. Link to comment Share on other sites More sharing options...
dp213 Posted November 22, 2016 Author Share Posted November 22, 2016 What about the phase 2 2.5, do they also do the same Link to comment Share on other sites More sharing options...
dp213 Posted November 22, 2016 Author Share Posted November 22, 2016 Larry, how thick are the cosmetic gaskets you have? I am interested in at least 1 set. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now