steve56 Posted June 8, 2019 Share Posted June 8, 2019 (edited) Have 09 ej25 with heads off engine block. What cam sprocket arrow position is used to adjust the valves on each cylinder? If I can turn the cam sprockets by hand with no resistance, does that mean all the valves in the head are closed and ready to be adjusted? Edited June 8, 2019 by steve56 Link to comment Share on other sites More sharing options...
montana tom Posted June 9, 2019 Share Posted June 9, 2019 No, when the cam is free floating is not the time to adjust. Turn the cam until a set of valves are full open and adjust the other set on the same cly. , roll the cam and adjust the set that was just open. Use only Subaru head gaskets. Link to comment Share on other sites More sharing options...
steve56 Posted June 9, 2019 Author Share Posted June 9, 2019 (edited) Now I'm confused. When the valves are fully open, their on the high side of the cam and there is no adjustment. When the valves are fully closed their on the flat side of cam creating a valve lash. Edited June 9, 2019 by steve56 Link to comment Share on other sites More sharing options...
montana tom Posted June 9, 2019 Share Posted June 9, 2019 one cly at a time , open the intakes , adjust the exhaust, close intake ,open exhaust, adjust the intake. move to next cly Link to comment Share on other sites More sharing options...
FerGloyale Posted June 9, 2019 Share Posted June 9, 2019 (edited) 12 hours ago, montana tom said: one cly at a time , open the intakes , adjust the exhaust, close intake ,open exhaust, adjust the intake. move to next cly making more complicated than it needs to be. Your procedure will make one move thorough double the rotations. Subaru heads have a spot where neither cam is trying to open any valves.. That's the point to use. As the OP suspected, the with Subaru heads the point to adjust valves is when the ALL valves aree closed. There is a point int eh rotation for a subaru head wher hits happens. Just make sure the valve are NOT being pressed by the cam lobes. That's the pint to adjust. Edited June 9, 2019 by FerGloyale trying to change the tone. Didn't mean to denigrate anyone 1 Link to comment Share on other sites More sharing options...
montana tom Posted June 9, 2019 Share Posted June 9, 2019 (edited) Sorry didn't mean to confuse you. Do what you want. Edited June 9, 2019 by montana tom Link to comment Share on other sites More sharing options...
steve56 Posted June 9, 2019 Author Share Posted June 9, 2019 15 hours ago, FerGloyale said: making more complicated than it needs to be. Your procedure will make one move thorough double the rotations. Subaru heads have a spot where neither cam is trying to open any valves.. That's the point to use. As the OP suspected, the with Subaru heads the point to adjust valves is when the ALL valves aree closed. There is a point int eh rotation for a subaru head wher hits happens. Just make sure the valve are NOT being pressed by the cam lobes. That's the pint to adjust. How do you determine the point in the rotation of the cam shaft where all valves are closed? Link to comment Share on other sites More sharing options...
el_freddo Posted June 9, 2019 Share Posted June 9, 2019 2 minutes ago, steve56 said: How do you determine the point in the rotation of the cam shaft where all valves are closed? The cam will become very easy to rotate, no friction compared to when trying to push a valve. It’s very obvious! Cheers Bennie Link to comment Share on other sites More sharing options...
steve56 Posted June 9, 2019 Author Share Posted June 9, 2019 3 hours ago, el_freddo said: The cam will become very easy to rotate, no friction compared to when trying to push a valve. It’s very obvious! Cheers Bennie So I can adjust all the intake and exhaust valves on the head from that position. Link to comment Share on other sites More sharing options...
el_freddo Posted June 10, 2019 Share Posted June 10, 2019 When I do my brumby valve clearances I have that cylinder at top dead centre. Since your headsare off the vehicle, when there is no load on the valves, this would be the best spot to do them in. Cheers Bennie Link to comment Share on other sites More sharing options...
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