Outer Cv Boot Cracked

[Guest Aarongalaxy90tdi]

is the outer cv boot easy to change? noticed my has a crack in it and mot on monday ,Also would this me the clonking noise when going over bumps? help with details please to fix

[Guest Aarongalaxy90tdi]

Hi Really need help changing the outer cv boot has it has cracked and got mot on monday,just fitted new pads and discs any help would be great thanks

[sparky Paul]

The clonking is most likely to be worn anti-roll bar links.

 

 

A split outer CV boot is a MOT fail, but replacement is a relatively straightforward, if messy, job.

 

First, loosen the driveshaft bolt and wheel bolts, before jacking up and removing the wheel. Support the car on axle stands.

 

Undo the two caphead bolts holding the bottom balljoint, and split the joint to release the suspension leg and hub. Very carefully, use the old driveshaft bolt screwed into the thread to push the driveshaft from the wheel hub. Once the driveshaft is free of the hub, pull back the old boot from the CV joint, and using a hammer and a small block of wood against the centre of the joint, knock the joint off the end of the shaft. It is held by a C ring type circlip on the end of the shaft, and will need quite a sharp tap, but take care not to pull the shaft from the gearbox - you may need assistance with this.

 

Recover the circlip, the plastic spacer and the dished washer from the shaft, noting the orientation.

 

Examine the CV joint. If the joint has been open for some time and the grease is contaminated with grit, it is advisable to wash the joint out completely with paraffin and repack with 120g of new CV grease - you may need more than is supplied with a boot kit. If there is still plenty of grease and it is clean, add the grease supplied in the kit.

 

Remove the old boot from the shaft and fit the new boot. Replace the dished washer and spacer on the shaft, and then fit a new circlip.

 

Refit the CV joint by tapping it back onto the shaft, make sure the circlip is correctly seated and the CV joint is firmly attached to the driveshaft. Fix the new boot to the joint and shaft with the new fixings supplied.

 

Clean the mating faces of the wheel bearing and CV joint, oil the driveshaft splines liberally, then refit the driveshaft into the hub - fit a new hub bolt and tighten to remove any slack in the assembly. Refit the bottom balljoint. The driveshaft end bolt is a stretch bolt and must be replaced.

 

Refit the wheel, lower to the ground and torque the new driveshaft bolt to 111lbf ft, then angle tighten a further 90°

 

I think that's about it, hope this helps.

 

Edited August 12, 2011 by sparky Paul

[Guest Aarongalaxy90tdi]

thanks for that paul may get garage to do that one lol

[sparky Paul]

It's a messy old job, and not for a complete novice, but you've done the discs/pads and I wouldn't say it's much more difficult than that.

 

Just make sure the garage fits a new driveshaft end bolt. Refitting a pre-stretched bolt may not maintain the correct tension on the wheel bearing and give you problems later on.

[Guest Aarongalaxy90tdi]

ok thanks

[ggobin]

Great instructions Paul, very useful. Thank you.

[Guest Aarongalaxy90tdi]

Hi Paul,How do i do this part? "torque the new driveshaft bolt to 111lbf ft, then angle tighten a further 90

[sparky Paul]

How do i do this part? "torque the new driveshaft bolt to 111lbf ft, then angle tighten a further 90

[Guest Aarongalaxy90tdi]

ok thanks car has failed mot today on anti roll bar links and drop bar links price for mot is 240 that includes them picking up car and mot

[sparky Paul]

ok thanks car has failed mot today on anti roll bar links and drop bar links price for mot is 240 that includes them picking up car and mot

 

Ant roll bar links are straightforward job, 10 minutes and

[Guest Aarongalaxy90tdi]

Paul this is what was on failed mot ... Nearside Registration plate lamp bulb not working (1.1.C.1c)

 

Nearside Track rod end ball joint has excessive play (2.2.B.1f) **DANGEROUS**

 

Nearside Outer Front Anti-roll bar linkage has excessive play in a ball joint (2.4.G.3)

 

Offside Outer Front Anti-roll bar linkage has excessive play in a ball joint (2.4.G.3)

 

Nearside Inner Front Anti-roll bar rubber bush deteriorated resulting in excessive movement (2.4.G.3)

 

Offside Inner Front Anti-roll bar rubber bush deteriorated resulting in excessive movement (2.4.G.3)

[sparky Paul]

Paul this is what was on failed mot ... Nearside Registration plate lamp bulb not working (1.1.C.1c)

 

Nearside Track rod end ball joint has excessive play (2.2.B.1f) **DANGEROUS**

 

Nearside Outer Front Anti-roll bar linkage has excessive play in a ball joint (2.4.G.3)

 

Offside Outer Front Anti-roll bar linkage has excessive play in a ball joint (2.4.G.3)

 

Nearside Inner Front Anti-roll bar rubber bush deteriorated resulting in excessive movement (2.4.G.3)

 

Offside Inner Front Anti-roll bar rubber bush deteriorated resulting in excessive movement (2.4.G.3)

 

Not too bad really, not sure if you have actually had the car done and tested, but here's an idea of costs...

 

Bulb - 50p

Track rod end -

[Guest Aarongalaxy90tdi]

yeah they are doing work today,one of the boots on outer was cracked but not leaking any grease yet they didnt pick this up or put it on advisory sheet? as ive looked on vosa web site at fail history,so maybe have to do the boot after all,I only noticed the boot crack when i changed discs.

[sparky Paul]

one of the boots on outer was cracked but not leaking any grease yet they didnt pick this up or put it on advisory sheet? as ive looked on vosa web site at fail history,so maybe have to do the boot after all

 

I would. If there's definitely a hole, grease will have escaped, and a rubber boot is a lot cheaper than a new joint.