17.07.2005: Saab NG900 Outer CV Boot

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17.07.2005: Saab NG900 Outer CV Boot

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Outer CV boot replacement on a 1996 Saab 900SE turbo. The repair had to be done because the old boot developed a crack and started leaking grease.

Tools and supplies:

new CV boot kit: boot, clamps, snap ring and grease;
32 mm (1¼") socket: hub centre nut;
18 mm socket: tie rod nut;
17 mm socket: wheel bolts;
15 mm socket: control arm to subframe bolt;
13 mm socket: lower sway bar link nut;
11 mm open wrench: upper part of sway bar link;
10 mm Allen key: caliper bolts;
5 mm Allen key: ABS sensor screws, rotor index screw;
torque wrench;
car jack and axle stands;
C-clamp: for tightening the tie rod end;
breaker bar;
vice-grips;
gear puller;
hammer.

	16.07.2005 Hub nut With the car still on the ground, remove the centre cap from the wheel and loosen the hub nut using a 32 mm socket (a 1¼" will do) and a breaker bar. Loosen the wheel bolts while you're at it too (17 mm socket).		17.07.2005 Rim Raise the car and remove the wheel. These little grease splatters on the inside on the rim are a clear sign of the problem. The side where the grease is concentrated the most can help locate the crack in the boot.
	17.07.2005 Caliper Undo the hub hut completely. Remove the caliper (10 mm Allen socket) and hang it onto something so no load is placed on the brake line.		17.07.2005 Tie-rod Clamp the tie-rod and undo the nut (18 mm socket). Use a gear puller to separate the rod end. You may also remove the ABS sensor to clear the way (5 mm Allen key).
	17.07.2005 Control arm Disconnect the anti-roll bar link from the control arm. Use a 13 mm socket on the nut and a 11 mm spanner on the top end.		17.07.2005 Rotor off Remove the index screw (see here for possible solutions if it gets stuck) and take the rotor off.
	17.07.2005 Disconnected If you have a proper ball-joint separator (NOT a fork-type!), you can undo the ball joint. I found it easier to unbolt the control arm from the subframe instead (15 mm socket). Tilt the strut out of the way and pull the axle out.		17.07.2005 Clamps Remove the old clamps from the boot with a chisel or a big screwdriver. Slide the boot up the shaft and start removing the grease. The joint is firmly seated on the driveshaft and secured by a snap ring.
	17.07.2005 Joint removed Once you dig the ring from under the layer of grease, do you best to remove it. I ended up pulling it out with vice-grips, which straightened it completely (and thus destroyed). Gently tap the CV joint until it comes off the axle.		17.07.2005 Boot This is where the crack in the boot was. It didn't seem big, and there was enough grease to last for the next half a year until it all leaks out, but I didn't want to take my chances.
	17.07.2005 Disassembled Disassemble the joint. First, turn the inner part sideways to take out the balls one by one, then remove the remaining parts.		17.07.2005 Cleaned up Clean everything thoroughly to wipe out all of the old grease. Do not let the dirt to get into the joint from now on.
	17.07.2005 New kit Here's the new boot kit from eEuroparts. It contains a new boot, two stainless clamps, a replacement snap ring and a tube of fresh grease.		17.07.2005 Boot on Put the boot on and inspect how the joint assembly connects to the axle.
	17.07.2005 Packed Put the new snap ring into the joint so the angled ends are seated in the opening in the star-shaped centre part, and fill the bearing with grease.		17.07.2005 Installed Gently tap the joint on until the ring clicks into the groove in the shaft.
	17.07.2005 Clamp Put the boot on. There are grooves in the joint body and the axle that help you position the boot properly. Put the clamp on.		17.07.2005 Crimping If you don't have a specialized crimping tool, the job can be done with a pair of thin Allen keys and the mighty vice-grips.
	17.07.2005 Joint finished Put the second clamp on and inspect the boot.		17.07.2005 Axle installed Insert the axle into the hub.
	17.07.2005 Control arm Bolt the control arm to the subframe (85 ft-lbs) then connect the anti-roll bar link (8 ft-lbs). Clamp and tighten the tie-rod end (55 ft-lbs), install the ABS sensor.		17.07.2005 Brakes Install the rotor and the caliper (87 ft-lbs). Bolt the hub nut on reasonably tight. Put the wheel on (84 ft-lbs) and lower the car to the ground. Tighten the hub nut to 214 ft-lbs.

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