R55 Timing Chain locking tool N18
I have a CEL with a OBD2 code P1338 "Intake camshaft:Offset angle to crankshaft outside tolerance".
Positioned camshaft lettering is facing straight up. Exhaust locking tool is on without issue.
Intake tool will not fit. Used 1-1/6 wrench and adjusted cam a few degrees clockwise and tool fit.
Tried to pin lock flywheel and was not successful.
Removed spark plugs. Inserted 1 each equal length wire into cylinders. Removed cam lock tool.
Slowly rotated crankshaft in clockwise direction with ratchet. Pin locked flywheel successful.
All cylinder wires are even. I assume this means all cylinders are at 90º TDC.
Issue: with the flywheel locked the lettering on both cams now faces completely downward.
With a little clockwise adjusting of the intake cam the cam locking tool will fit in this position.
I removed the chain tensioner.
Removed both VANOS sprockets. They were very tightly secured.
I do not know how to assess the functionality of the VANOS self adjusting sprockets.
Removed 3 chain guide bolts.
Removed the crankshaft bolt. Found that the timing chain sprocket was stuck on crankshaft hub.
Removed chain and guide all intact.
Question: Can I rotate both camshafts around so the lettering is positioned straight up and continue on?
Positioned camshaft lettering is facing straight up. Exhaust locking tool is on without issue.
Intake tool will not fit. Used 1-1/6 wrench and adjusted cam a few degrees clockwise and tool fit.
Tried to pin lock flywheel and was not successful.
Removed spark plugs. Inserted 1 each equal length wire into cylinders. Removed cam lock tool.
Slowly rotated crankshaft in clockwise direction with ratchet. Pin locked flywheel successful.
All cylinder wires are even. I assume this means all cylinders are at 90º TDC.
Issue: with the flywheel locked the lettering on both cams now faces completely downward.
With a little clockwise adjusting of the intake cam the cam locking tool will fit in this position.
I removed the chain tensioner.
Removed both VANOS sprockets. They were very tightly secured.
I do not know how to assess the functionality of the VANOS self adjusting sprockets.
Removed 3 chain guide bolts.
Removed the crankshaft bolt. Found that the timing chain sprocket was stuck on crankshaft hub.
Removed chain and guide all intact.
Question: Can I rotate both camshafts around so the lettering is positioned straight up and continue on?
Here is how you know the cams are in the correct position:
Since you're locking the flywheel and checking the cam timing, are you in the process of replacing the timing chain? If so, I would lock the flywheel, remove the timing chain, move the cams into the correct spot, then install the cam holders. With the flywheel locked and the cams in place, the timing will be correct when buttoned up.
Since you're locking the flywheel and checking the cam timing, are you in the process of replacing the timing chain? If so, I would lock the flywheel, remove the timing chain, move the cams into the correct spot, then install the cam holders. With the flywheel locked and the cams in place, the timing will be correct when buttoned up.
I just ordered ECS timing chain kit, valve cover gasket, along with crankshaft small hub. I was just unsure if I should replace the intake and exhaust VANOS sprockets?
I will be carefully rotating each cam clockwise into the correct lettering up position.
I appreciate the knowledge here. Thank you for the help.
I will be carefully rotating each cam clockwise into the correct lettering up position.
I appreciate the knowledge here. Thank you for the help.
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