Inner CV boot

[carl59862]

Checking the car off this morning ready for a run tomorrow and I've found the O/S inner CV boot is split in two. I haven't driven the car much this year and I'm thinking that the run back from the NEC last Nov might have done it. There is still some grease lurking in there and I'm hoping that I haven't damaged the CV joint.

I've looked at the shop manual and it looks a fairly daunting job. Is there any way I can pull the driveshaft to replace the inner boot without having to dismantle the other end - hub, wheel bearing etc?

Any help appreciated!


Carl

[SanRemo78]

Yes. Jack up and support the body on stands. Remove the wheel.
Clean out the socket head thoroughly and get the right size (8mm?) Allen key on a socket drive with a long extension bar. Release all six bolts and withdraw them, keep the nuts and lock plates safe although you may want to replace the nuts. The shaft should drop which will allow you to wipe the grease off to expose the circlip. Remove this with circlip pliers and the inner CV joint should slide off the shaft. Remove the boot and clean the end of the shaft properly. Fit a new boot onto the shaft. Clean the CV joint of all old grease, check the races and repack with fresh grease. Refit your the shaft and reassemble. Note that the joint will have a groove in one end of the outer surface. Make sure it’s put back in the same orientation. It’s messy dirty work under the car but it can be done without removing the shaft. If the outer boot is worn this can also be replaced at the same time but make sure the entire shaft is clean.
Guy
Guy

[carl59862]

Thank you so much for this detailed response Guy. I'll get the boot ordered - is there any special type of grease I will need to re-pack it?

Regards

Carl

[peteracs]

Hi

You should use the normal CV Moly grease, grey/black and vey messy, have plenty of paper towel handy.

Eg https://www.halfords.com/motoring/engine-oils-and-fluids/lubricating-and-penetrating-oil/comma-cv-and-lith-moly-grease-500g-634949.html

Peter

[SanRemo78]

As Peter says, Moly grease. It's incredibly messy stuff, wear gloves if you can. When overhauling CV joints I clean out most of the grease with tissues and the remainder with a polishing cloth and petrol (done outdoors!) and repack with new grease. I always have a tin of the stuff on the shelf. New CV Joints usually come with a sachet of the stuff.

Guy

[mangocrazy]

Rather than start a new thread, and as my query is CV-related, here goes. The last time I had the misfortune to swap engines on the Beta, I noticed that the heads of the 2 x 6 allen bolts that hold the CV joint together were getting more than a bit rounded off. Can anyone tell me what is the length of these bolts, so I can order up some new high tensile replacements? Are these bolts M8 or M10 ?

Also, is it worth renewing the nuts as well, and if so what type should I be ordering?

Thanks in advance.

[Ics19]

The bolts and nuts are same as a monte - the higher class socket heads minimise any chance of rounding and ideally you never reuse nylocs if you want them to be effective - to paraphrase Dirty Harry, "Do you feel lucky?":
https://www.eurosport-uk.net/shop/index.php?main_page=product_info&cPath=51_67&products_id=773
https://www.eurosport-uk.net/shop/index.php?main_page=product_info&cPath=51_67&products_id=845

[WestonE]

The Nuts are M8 x1.25 P Type (Deep) Nylocs. Replace the nuts or the joint will come loose later. Loads of suppliers for these nuts but get the correct deep ones.

[mangocrazy]

Excellent stuff. Thanks for the very prompt and informative replies.