2.2 L61 Engine: 2.2 Ecotec cam install instructions
#27
Excessive vibration could be caused by misalignment also of the balance chain. Did you remove the balance chain? You are going to have to pull the timing cover back off.
Once timing cover is off and number once cylinder is at TDC - crankshaft keyway will be at 12 o'clock position.
Check balance chain timing marks. Intake balance chain sprocket - the front one should be pointing up. Exhaust balance chain sprocket mark should be pointing down. If not, you will have to remove and reset everything. It is probably best to remove timing chain and reset. locate colored links. first colored link should be placed on intake sprocket lined up with int timing mark which should be at about 2 o'clock position ....this is the index on the outer part of the sprocket (not the inside offset mount) , second should line up with crankshaft timing mark at 5 o'clock position (this means that you will have to turn the crank slightly after installing balance chain), third should line up with timing mark on rear sprocket marked ext....if the first links are as above this will force you to adjust cam so that link is on ext timing index. If you are off quite a bit, you will have to be very careful to rotate cam slowly, if you feel you are hitting piston, back cam off and then rotate crankshaft slowly about 10 degrees and then try to rotate exhaust cam into position....you may feel resistence from the front cam which means you may have to rotate a bit so you clear pistons to get both cams and crank into position...this is only needed if you are quite a bit off on the timing......
If you find you were off quite a bit, you may have been a valve....this will depend on what you find when you try to reinstall the chain as above and find you have to move the cams quite a bit. If you find your timing was close to the mark but off a tooth and that your balance chain alignment was off, the excessive vibration may just be due to the misalignment of the balance chain which when corrected should clear up your problem.
I just went through this a few months ago, when I removed my cylinder head to have a valve job done, etc.
Wholesale Dealers
Once timing cover is off and number once cylinder is at TDC - crankshaft keyway will be at 12 o'clock position.
Check balance chain timing marks. Intake balance chain sprocket - the front one should be pointing up. Exhaust balance chain sprocket mark should be pointing down. If not, you will have to remove and reset everything. It is probably best to remove timing chain and reset. locate colored links. first colored link should be placed on intake sprocket lined up with int timing mark which should be at about 2 o'clock position ....this is the index on the outer part of the sprocket (not the inside offset mount) , second should line up with crankshaft timing mark at 5 o'clock position (this means that you will have to turn the crank slightly after installing balance chain), third should line up with timing mark on rear sprocket marked ext....if the first links are as above this will force you to adjust cam so that link is on ext timing index. If you are off quite a bit, you will have to be very careful to rotate cam slowly, if you feel you are hitting piston, back cam off and then rotate crankshaft slowly about 10 degrees and then try to rotate exhaust cam into position....you may feel resistence from the front cam which means you may have to rotate a bit so you clear pistons to get both cams and crank into position...this is only needed if you are quite a bit off on the timing......
If you find you were off quite a bit, you may have been a valve....this will depend on what you find when you try to reinstall the chain as above and find you have to move the cams quite a bit. If you find your timing was close to the mark but off a tooth and that your balance chain alignment was off, the excessive vibration may just be due to the misalignment of the balance chain which when corrected should clear up your problem.
I just went through this a few months ago, when I removed my cylinder head to have a valve job done, etc.
Wholesale Dealers
Last edited by Alvasin; 07-09-2011 at 12:14 PM.
#30
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#31
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Problems. Car doesn't want to start after cam removal. Cranks, belches smoke from exhaust, no haz turnover. But if I reset the ecu by disconnecting the battery, it will fire after 2 cranking cycles and run smooth as butter and does NOT throw any CEL Drove it around about 10 miles, parked it, shut it off, same thing. Cranks and wont start.
I figure it has to be either the engine is out of time (not likely, I checked the cam chain) or the cam position sensor is screwing me. However I thought if either of these were true it would throw codes...
I figure it has to be either the engine is out of time (not likely, I checked the cam chain) or the cam position sensor is screwing me. However I thought if either of these were true it would throw codes...
#35
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compression stroke should have all lobes up (not pressing on valves) and piston as far up in cyl as it goes (stick something gently through spark plug hole and see if its at the top of its stroke
#37
I just put a new timing chain in everything is lined up it's getting compression spark fuel and air buy won't fire and is jumping time again I think the left guide isn't tight enough is the guide supposed to be free it tight?
#39
Curious
I am having to change the front cam shaft to fit the power steering pump to my motor. My question is this. I've never done this and do not have a j tool. Plz tell me I can do this on my own. I've changed motors before just not this far in
Old motor cam shaft
New motor cam shaft
New motor cam shaft
#40
Curious
I am having to change the front cam shaft to fit the power steering pump to my motor. My question is this. I've never done this and do not have a j tool. Plz tell me I can do this on my own. I've changed motors before just not this far in
Old motor cam shaft
New motor cam shaft
New motor cam shaft
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