I have a 2000 OBW with ej25 engine with no timing belt. Right now the key way on crank sprocket is at 9 o lock position.From what i remember The key way on crank sprocket needs to be at 6 o clock position to line up the cam sprockets and put the timing belt back on. How do I turn the crank sprocket to correct position with out the pistons hitting the valves. Also, are the pistons all the way in(safe position) when the key way is at 6 o clock and at 12 o clock.

 

To clarify my situation. The timing mark on crank sprocket is at 3 o clock. The drivers side cam sprocket is under load, which I assume means some valves are open. As Fairtax4me stated, turning the the crank back a quarter turn should have the pistons moving back in. Am i understanding this correctly. I was also trying to understand why the passenger cam sprocket  always seems to be unloaded (valves closed)when the timing belt is off.

Edited June 12, 201510 yr by steve56

OPPS Bad Info so I deleted it

Edited June 12, 201510 yr by desertsubaru

ignore the keyway - use the correct mark on the crank sprocket and align it with the divot in the engine block.

but again - people often use the wrong mark - make sure you got the arrow on the outer circumference.  google pictures online to clarify.

gah!

 

sorry.

 

if ALL the cams are 'unloaded' all valves should be closed and moving the crank safe - see post below.

Edited June 12, 201510 yr by 1 Lucky Texan

No no, with the drivers cam in timing position the valves are OPEN on that side and turning the crank can cause them to collide.

 

Put the sprocket on, and turn the crank counter clockwise (slowly) by hand or with a strap wrench, until the timing notch on the sprocket lines up.

 

Line up the crank FIRST, then you can turn the cams to their proper positions.