I changed the altenator, but cant get the belt to go back on right. I tried putting it on the back half of the double pulley, but the car sqealed and didnt run right, but when the belt is angled funny when I put it on the front half. Do you have the diagram for the tensioner belt? (My car actually has 2 seperate belts and I have no picture diagrams on this car to tell you which way to run the belts)>

2004 pt cruiser water pump YouTube

Th cam shaft pulley has to be turning if motor running. Maybe fan is equipped with clutch that is bad.

They are sometimes installed with threadlock compound which makes it very difficult. How big and powerful was the impact wrench? Is there scope yet to hire a really huge one?

The bump method is a last resort because it puts the flywheel ring gear teeth at some risk. Break one of those and you are up for expense.
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Workout and stop being a *****

The white smoke was probably oil that had seeped into the cylinder while the engine stood for that week, it is not right but if it does not re-occur you can overlook it for a while but you will have to attend to the valve stem seals at some stage. The squealing would be the altenator belt slipping on the pulley. Check the belt, it is either so loose that the altenator is not charging now, or the belt has snapped. Please rate this answer if you find it heplful.

CHECK ALL THE PULLEYS WITH BELT OFF TO SEE IF ANY HAVE PLAY IN BEARINGS
OR ARE CONTAMINATED FROM PREVIOUS BELTS SLIPPING MAKE SURE THEY ALL ROTATE FREELY WITH NO SOUND

above your water pump there is a small hose that runs into it there check it make sure it is not leaking that will make it squeal and its cheap doesnt take much water for the belt to slip so?

Your truck has one belt and one idler pulley. To tighten it you will need a large bar (a breaker bar, crowbar or large screwdriver will work) Loosen the idler pulley bolt (not all the way) just enough to break it loose then use the bar against the pulley to tension the belt. If there are parts missing from the idler pulley, a new one must be purchased.

some porsches adjust belt tension by adding or removing shims between the two pulley halfs.take the nut off the pulley insert the belt put thebelt,outer pulley and nut back on.

The serpentine belt tensioner / pulley is on the front of the engine, and part of the belt 'routing'.

Its job is to put tension on the belt as it drives the other devices like the power steering pump, water pump, air conditioning compressor.

It is an aluminum casting that mounts with a single bolt to the engine. The pulley is attached to the arm.

There are a few ways to move / pry the arm inwards, thus releasing the tension on the belt for removing/installing: grab on the pulley bolt (15mm?) with a wrench, or some later models have an opening for a 3/8th socket wrench to attach to directly without a socket.