The tensioner pully bracket broke to the alt/pwr steering belt. it made of cast aluminum. is this a replaceabe part? if not can it be welded? or fixed at all?

Asuming you broke it off in a blind hole, if you have a wire feed center a nut over the remaning stud & weld if on let cool put penetrating oil on it & work it gently back & forth even if its below the surface slightly on aluminum or cast the weld will not bond to the surface just the bolt you may need to do this process several times then go to dealler for new bolt. Note this works extremly well on broken ex. manifold bolts, we havent drilled in years hope this helps Danny

Check to make sure all pulleys and brackets are tight. Look for wear and tension on belts. Look for alignment to make sure they haven't shifted out of intended location. Take the belt off and spin by hand all of the pulleys, pwr steering, alternator, A/C, water pump, tensioner and make sure none of them are defective.

I also need help knowing how to replace the belt tensioner pulley. It looks like you can't get out the bolt because the pulley is real close to the frame, unless the bolt has nuts on both ends, but it doesn't look like it.

Yes the tensioner pulley and bearing assembly can be purchased and installed.

serpentine belt drive or conventional serpentine uses a tensioner pully on the side if it it has a 3/8 or 1/2 drive opening for a socket put it in a pullaway from the direction its tensioning and slip it off. old school belts loosen the alternator adjustment and back the alt looseng nut by slide and the 14mm under it that brackets it down.

The tensioner is spring loaded and there is no setting. It floats with the belt. It's the pully with no groves that applies pressure to the back of the belt. Good luck. and be carefull.

OVER THE CRANK PULLEY BETWEEN TENSIONER AND WATER PUMP DOWN TO PWR STEER PUMP PULL ALL SLACK TO THE ALT . PULL TENSIONER TOWARDS FRONT OF CAR AND INSTALL TO ALT.

What are you removing? alt? power steering?
Belt Tensioner Operation: This device functions as an idler pulley and is located on either the inside or outside of the accessory drive belt. Its provides the correct tension for initial belt adjustment and maintains this critical tension adjustment during vehicle operation. It can be found on conventional V-belts and the newer serpentine ribbed belts.

well has soon as you loosen and take out the alt the belt will become loose then put alt on it will slide down to put belt around and then pull up on alt and tighten it up

BELT, REPLACE

1. Release belt tension and remove belt from power steering and alternator pulleys. Twist belt to get between tensioner and front cover and between power steering pulley and engine mount bracket.
2. Raise and support vehicle.
3. Turn wheel to the extreme right and remove right side splash shield.
4. Remove belt from crankshaft and A/C compressor pulleys. Twist belt to get between idler pulley and engine mount bracket.
5. Lower vehicle.
6. Twisting new belt to get past the front cover, install belt around power steering pump pulley, Fig. 15. Allow belt to hang free.
7. Twist belt to get between tensioner and front cover, wrap belt around alternator.
8. Remove belt from power steering pulley and set aside.
9. Raise and support vehicle, then twist belt to get between tensioner and front cover, wrap belt around crankshaft and A/C compressor pulleys.
10. Install right side splash shield and lower vehicle.
11. Position belt around power steering pulley and release tensioner.