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SUBARUPictures of how I replaced the cam shaft oil seal O-ring on the Subaru Legacy Outback 2.2 engine.


GOOD TO KNOW:

Cam shaft oil seal:
A round metal washer, covered with rubber, that fits tightly around the cam shaft end. It is used to keep the oil on inside of the engine from becoming the gunk burning on the exhaust pipe.
O-ring:
A thin rubber ring that seals the port cam shaft housing to the front of the engine head.
Note:
The process is very similar on the EJ25 2.5 liter engine


How To:


But first, lets pay some bills:
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  1. O-Ring.
    O-Ring


  2. Oil seal.
    Oil Seal


  3. View of cam housing - Side. Dirty and oily from leak.
    Housing


  4. View of cam housing - Above.
    Housing


  5. "Using the wrong tools for the job." Removing (actually replacing) the cam sprocket. A channel pliers and a crescent wrench. Small scratches on sprocket, but it did not slip, did not bend anything.
    wrong tools


  6. View of cam housing - Above with timing belt and cam sprocket off.
    Housing


  7. View of cam housing - Front. I think some of the gunk below is coolant from a weeping water pump.
    Housing


  8. View of cam housing - Below. Oil and coolant on exhaust.
    Housing


  9. Cam housing removed. Cam shaft wrapped with paper towel to keep dirt out. Ready for cleaning.
    removed


  10. Cleaned.
    Cleaned


  11. Removed Cam housing - Front - with original oil seal.
    Housing


  12. Removed Cam housing - Back. Damn, that's dirty.
    Housing


  13. Old O-Ring on left hardened and deformed. New O-Ring on right flexible and round.
    O-Ring


  14. New O-ring installed on clean housing.
    Housing


  15. Cam Shaft Housing installed, then new Oil Seal installed, then Rear Timing Belt Cover installed.
    Oil Seal


  16. Next I sold out to make 02ยข so I can fulfill my lifelong dream of owning a 1986 944 with blown head gaskets.
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    But no minivans!


  17. Then I finished my beer.
    Beer


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Last modified: 11/21/2014
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