Nissan Repair: Your recommendation repair manual injectors, crank pulley, pulley bolt


Question
Request your recommendation for easy to follow instructions for repair of 1990 Maximum injectors & timing belt.  Thanks in advance!

Answer
Darel,

The timing belt is easy.  Go to Nissan and get a timing belt and tensioner.  Jack the right front up and put it on a stand.  Remove the tire, take the innder fender well off.  Remove the crank pulley bolt after you put the engine on top dead center, using the timing marks.  Remove all the belts os you can take the timing covers off.  Remove the top ones first and then the bottom.  Note the location of the timing marks on each pulley.  Look at the new belt and get a visual of how it will go in.  Use the new belt and place it next the the old onee on the car and line up the marks.  Now, let the tension off the old belt and remove the belt.  Remove the tensioner and replace it with the new one.  Place the new belt on the gears and let the tensioner pull the blet tight.  Be sure that the slack in the belt is on the side where the tensioner is or the belt will move the cam pulley on one or both heads.  If you have the belt on properly replace the crank pulley and bolt and move the belt in the direction the engine rotates twice and check the timing marks to be sure that everything lines up on top dead center.  If it dies you are done.  Be sure to check the tension on the belt to be sure that it is tight.  If not loosen the tensioner and push it against the belt with your finger and retighten it.

The injectors are easy.  Just remove the rail and the injectors come out of the intake and stay attached to the rails.  but, be sure to remove the gas cap and then put it back on.  Then, depress the schrader valve to remove the fuel line pressure and then you can remove the rail.  I would not take the injectors out unless they were inoperative or leaking.  Be sure to use new o-rings when you put the injectors back on and use 30 weight engine oil to lubricate them for easy installation.