Question about 1990 Nissan Sentra
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Posted on Jan 02, 2017
The belt tensioner is located under the timing cover. It is 1 1/2 round and about 3/4 inch with a groove in the middle where a bolt is tightened. When you remove the timing cover you will see the timing belt, the camshaft sprocket and the crankshaft gear. The timing belt goes around these components.. The belt tensioner is loosened and the new timing belt is placed. The sproket also has to be replaced if it is broken. Be careful to notice the little marks that are aligned on the sproket and above the camshaft.. They can be small arrows that have to be aligned exactly the way you took them off. replace the belt and you tighten the tensioner so the belt fits snug and tighten the bolt in the middle of the belt tensioner. It is not too difficult, if you know something about mechanics. If you don't, you will be better of taking it to somebody who does know.
Posted on Nov 14, 2008
I don't know your engine but every one with which I am familiar has the firing order cast right into the block. Use a good light and check both sides of it.
Posted on Jun 14, 2009
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