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Re: point tha chain timer altima 94
If you mean the timing chain then on your crank gear and your cam gear there will be a mark on each sometimes they look like a dot the dots need to look like this for perfect timing ( . . ) this will be there closest position. Your crank turns once all the way around (360 degree) and your cam gear will do two complete revolutions to the one of the crank gear. so when you set your marks as above when you turn the crank one half turn the mark on the crank gear will be at the bottom and at the same time your cam gear will have made one complete revolution, so when you turn the crank another half turn your cam would have turned again a complete revolution and the two marks should be at their closet point again.
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Your timing chain has worn too the point where it needs replacing, this is the only warning you get on newer than '94 model vehicals before the chain or tentioner (if equiped) jumps or breaks causing internal engine damage up too having to replace the engine itself
Install the cam sprocket, timing chain, and timing chain cover. Make sure the dot on the crankshaft gear is pointing towards the center of the Camshaft gear bolt. Make sure the hole in the Camshaft gear is pointing towards the center of the crankshaft. Be sure to remove the nail holding the chain tensoner back, before installing the timing coverThe round hole in the cam gear is the alignment mark
My sincere apologies for the severly delayed response. I am personally going back to answer your unanswered questions.
I do not know if you still need this information, however I am answering it in case you still do.
Click on the following direct Link. It has several Diagrams for your Belt depending on your engine size and options (AC/No AC etc.) AND whether you have Tensioners OR Locking/Adjusting Bolts/Nuts. IF APPLICABLE: These point out the direction of rotation for the Tensioner in order to loosen and reinstall the Belt. IF APPLICABLE: These also point out where the Locking and Adjusting Bolts/Nuts are, to loosen the belt and remove; and reinstall the Belt and .
Standard Rules to Removal the Serpentine Belt with a Tensioner: 1. Find the Tensioner(s). (See Diagrams on Link) 2. Using a Serpentine Belt Tensioner Tool, Or Wrench OR Ratchet, Rotate/Move the Tensioner USING THE AVAILABLE NUT (on the Pulley or Arm Base) OR the OPENING (3/8ths or 1/2 inch square opening) rotating it\moving it away from contact with the belt and towards the area where the belt is not in contact with the Tensioner Pulley. The Tensioner is spring loaded, and is hard to rotate/move. 3. Remove the loosened belt off one of the other more easily accessed Pulleys. Standard Rules for Installing the Serpentine Belt with Tensioners: a. Pick a Pulley that is most easily accessed. This will usually be on top. This will be the last Pulley that the belt will go on. b. Using the Diagram: Install the new Serpentine Belt on the remainder of the Pulleys....over, under, left right. c. Using a Serpentine Belt Tensioner Tool or Wrench or Ratchet Tool: Rotate/Move the Tensioner Pulley/Arm "away" from Belt contact area on the Tensioner. This spring is pretty hard and with a new belt, it will be even harder to install. Rotate/Move this to as-close to the maximum allowed inorder to have enough slack in the belt to get it up and over the last pulley. d. Using your other hand - Pull the Belt up and over the Last remaining Pulley. e. Before releasing the pressure on the Tensioner, visually inspect the remainder Pulleys and the Belts' Positioning on them Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.Com!
There is a dot on each of the gears one on the large cam gear and one on the small crank gear.The crank gear dot on the teeth of the gear should point to the 12oclock postion straight up then the one on the cam gear point sin the 6 O clock position so the dots meet each other then you put the chain on the cam gear then around the crank gear then bolt on the cam gear the dots should still be lined up with each other.this puts the engine in the #4 firing postion
Well, it sounds like the window motor is drawing too much current. The window motor may not be any good. But before condeming motor, grease the window channels with a silicone base spray and make sure window moves up and down easy without much resistanse. If thats ok, then replace the window motor/regulator assembly.
I have a '94 Altima with 2.4 liter 4 cyl. engine. At around 150K the timing chain and tensioner were replaced - should solve your problem, too. If you're sure the chain is rattling you should really get it serviced now, not later. Also, if your car is running rough it could be more than just the chain and tensioner; it could be your ignition system, such as plugs, coil, distributor, etc. Bottom line is, your car needs to be checked out right away.
you will need new upper timing chain and sprockets. Common problem on altima your year. Nissan has TSB for it. First they had us remove the upper timing chain guide, but after that, they had us replace all top chain components.