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1997 2.2 I have no compression in any clylinders except # 3 it only has 50 lb. My idle pully came apart while my car was running. Can this crash or bend the valves on a 2.2?

I put a new idle roller on and also a new timing belt. The cam pullys was lined up with the mark on back of cam cover, the crank spocket was turned to the little mark on the reluctor tag at 12:00 which was also in line with the mark on oil pump. All lines on the belt matched and the teeth spacing was right.

Now with no compression is the valves bent or is the timing wrong. What else could cause no compression?

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The newer 2.2 L engines ARE interference type engines. I believe your engine is one of them. The valves are probably trashed in your engine. I dislike interference engines. It seems like a huge amount of liability for a very small increase in power. Sorry to hear of your problem. I will not not be buying a new Subaru if I can find an interference-free alternative.

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Sounds like you did the belt right, but double checking everything is the first thing I would do. I don't think the marks on the belt will line up after you have spun the engine, so you will need to line up the marks on the cam and crank.

 

I am not certain, but I think the 2.2 was non-interference until the Phase II came out in '99.

 

In this document Subaru says the 2.2 is non-interference.

 

http://endwrench.com/pdf/engine/FtCamBeltReplaceW01.pdf

 

This is a fuzzy issue for sure. What does Emily say?

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