The balancer is made of 2 pieces That have a rubber piece in the center of them that hold the balancer together. If the balancer comes apart YES it will knock / make noise and the engine would vibrate/shake. You would be able to move 1 piece of the balancer with your hand if that was the case. Check it.
YES it can, but the engine would vibrate and shake if it did.
YES... The sound can be compared to a engine knock. If the problem is not fixed enventually you will be left stranded. The center of the balancer will break loose from the drive pulley section . This will cause you to lose CKP sensor operation as well as all your drive belt operations.
Should be the tensioner that the Alternator belt goes to
They are standard right hand threads.
Should be the tensioner that the Alternator belt goes to
About the only thing that goes wrong with the factory balancer is the elastomer wears out and the outer ring can move. This would make it hard to set the ignition timing since you wouldn't know where tdc is.
The crank and balancer are keyed. It only goes on one way.
The oil leak is probably comming from the top of the oil pan there is a rubber gasket that goes between the oil pan and the water pumb which would make it look like its comming from the harmonic balancer, try replacing the oil pan gasket this should fix the problem. New answer: There is a small round oil seal / Harmonic balancer seal that fits in the timing cover and the balancer slides through the center of it. That is probley were your oil leak is. Most of the time the balancer itself gets a groove wore in it over time from that rubber seal running on it. You can repair the balancer by buying a Harmonic balancer repair sleeve/ speedy seal. Also replace the front timing cover seal.
== == I do believe if you hear a knocking noise that your crank shaft could be failing. Which means you will need a new engine. Have it checked out. Replace the harmonic balancer they will make a bad knocking noise. When you start it and the oil light goes out and it knocks, this is what is wrong with it.
Some people mistakenly change the harmonic balancer or the timing cover, without matching it up. Some had a timing mark located at the top center of the timing cover, and some were off to the side (between 1 and 2 o'clock) If you have a mismatched balancer & timing cover, you will not be able to line up the marks. Sometimes the rubber goes bad, and the outer ring of the balancer slips... which would cause the timing mark to move.
there are 2 crank position sensors. first 1 is the 24x located behind harmonic balancer you will need to remove belt 15mm bolt from balancer and balancer pulley. 2 8mm bolts and 1 10mm bolt are behind the balancer 1 13mm bolt is located on from block which you must disconnect. the other is located on the back of block which is the 7x 1 and this is just a 10mm bolt. It will take some playing around to pull this 1 out but it will come out and goes in very easy. before chaning any1 of these disconnect battery. When putting harmonic back on make sure its lined up w/ key hold and that's it all the way on.
We need to know what engine you have to answer that.