Remove the single 15 mm bolt attaching the PS pump bracket to the engine behind the pump. Remove the single 15 mm bolt attaching the PS pump bracket to the engine. Move the bracket out of the way, being careful not to stress the alternator wiring harness. Remove the four bolts (15 mm) attaching the alternator/PS bracket to the engine (marked with red circles in first photo below). Remove the four bolts (15 mm) attaching the alternator/PS bracket to the engine. Remove the two bolts (10 mm) attaching the electrical splice box to the alternator/PS bracket (see second photo below). Remove the two bolts (10 mm) attaching the electrical splice box. Working from above, remove the three bolts (15 mm) attaching the front of the pump to the alternator/PS bracket (marked with blue circles, see first photo below). Working from above, remove the three bolts (15 mm) attaching the front of the pump. Red and blue EVO valve electrical connector. If you can get the pulley off without damage, you can re-use it, as long as it slides tight on the new pump shaft. Don't use a regular two- or three-jaw puller, as it will distort the pulley and cause it to wobble on the new pump. That's why a new pulley is mentioned in the parts list above. A ten-year-old pump will have become very attached to its mating pulley and will only very reluctantly part with it. As you tighten the bolt, the pulley will slide off the shaft. Use one wrench to hold the flanged nut, and another to turn the hex head of the puller bolt. Slip the ring over the two-piece adapter to keep it together. Then place the two-piece adapter into the pulley groove and over the puller nut flange. Slide the smooth end of the puller bolt into the hole in the pump shaft, and run the nut down to the pulley. The special puller consists of a split-ring flanged adapter, a ring, a puller bolt, and a puller nut with a flange. Since I don't have pictures of using the tool, I'll attempt to explain the process (you can also see it in the first video below). I didn't need to do this for this job, because the pump shaft was broken, and I could just pull the pulley, with the broken shaft attached, out of the pump. Using a power steering pulley removal tool, remove the PS pulley. Old pulley with the broken pump shaft still attached. Remove the belt from at least one pulley and slowly release the spring tension on the belt tensioner.
Using a 15mm socket, "tighten" the bolt on the belt tensioner to swing it down. It's easy to forget the route by the time you're ready to reinstall it. There should be a diagram in the engine compartment, but if not, take a picture or draw a diagram. Make sure you know the routing of the serpentine belt. On the Suburban, it just lifts out, having been held in place by the upper shroud and a flange at the bottom that slides into the radiator support (no bottom fasteners). You may damage the blades or the viscous clutch between the fan and the nut.
If it requires so much force that you turn the crankshaft, you will need to remove the serpentine belt (see steps 6-7) and hold the pulley with a strap wrench. If the serpentine belt does not hold the fan pulley from turning, try pressing on the belt while striking the wrench with a hammer. You may need to strike the wrench with a hammer to break loose the large nut.
0 kommentar(er)
