Technical Whats going on here? CV joint?

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Technical Whats going on here? CV joint?

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My 500X is knocking badly, so i just took a look and found this...

IMG_20251105_132251.jpg


What is going on here?
 
My 500X is knocking badly, so i just took a look and found this...

View attachment 476089

What is going on here?
Seen 100s like that.:)
The question is how lucky you are, is it it just a case of slap a generous helping of CV joint grease all around the inside part of the joint and fit a new boot or is it a case of a new CV joint?
Usually this depends on how long it has been neglected for.;)
Although I am sure many drivers have gone to the Dealers and come away with an expensive bill for a complete driveshaft.:(
 
Seen 100s like that.:)
The question is how lucky you are, is it it just a case of slap a generous helping of CV joint grease all around the inside part of the joint and fit a new boot or is it a case of a new CV joint?
Usually this depends on how long it has been neglected for.;)
Although I am sure many drivers have gone to the Dealers and come away with an expensive bill for a complete driveshaft.:(

Thanks for the reply. It has driven about 100 miles like that, with the knocking becoming so loud I just stopped driving it until i could give it a proper look. Will i get away with just a load of new grease do you reckon? And how exactly do i put that in? It seems to have lost its cable tie/thingy so grease was ousing out.
 
To me that's a recent burst...if it's been like that for a long time the grease dries and there's no fresh left in the joint.

I'd suspect your knocking noise is elsewhere and you've found this while looking.

C3 did probably about 500 miles missing a boot at one point and the joint lived...and the noise I'd been chasing when I found it was a wheel bearing.
 
The grease was all wet, I presume I can use brake cleaner to remove it?

I've never had to repack a CV joint so what problems will I encounter?

I won't be surprised if the car has other problems:)
 
I already have some CV Lith-Moly Grease (NLGI 2) but it doesn't look like it will pour. The grease coming out of my CV Boot is definitely pouring.

Can I use the stuff I already have?

I presume there is some more viscous stuff that I don't know about?

IMG_20251105_192918.jpg
 
Looking at your first photo the clip does appear to have come off the boot.
So if you take the wheel off, put the steering on full lock, put your "marigolds " on, then get a big handful of that CV grease from your tub and work it in past the knuckles of the CV joint turning the wheel and working even more in so you know that the actual joint is well lubricated, then straighten the steering, slap a little more of the grease in , get rid of the old useless clip, slide the CV boot back into place assuming there is no splits or other damage to it, after wiping any grease from the area the boot is going to fit over the joint, once it is correctly in place get a good new clip and securely fit it holding the CV boot on tightly.
You can use the plastic ties but only if you have the proper tightening pliers to match, I have some metal strapping that I can use , but other than that there is the proper metal straps that come in a CV boot kit along with the grease, however again you need the proper pliers to secure the metal strap otherwise the boot will slide off again with same results.
It is grease rather than oil and has a sort of "antifling" capability,it doesn't fly off once slapped all over the inside of the joint.
Some French cars used to use a type of oil in their joints from the factory, but from memory they were not exactly CV joints mostly on Renault 5s and Peugeot 104s etc.
We used to say that CV joint grease sticks like sh*t to a blanket, it is very hard to wash off your hands, hence the need for your "marigolds".;)
 
Looking at your first photo the clip does appear to have come off the boot.
So if you take the wheel off, put the steering on full lock, put your "marigolds " on, then get a big handful of that CV grease from your tub and work it in past the knuckles of the CV joint turning the wheel and working even more in so you know that the actual joint is well lubricated, then straighten the steering, slap a little more of the grease in , get rid of the old useless clip, slide the CV boot back into place assuming there is no splits or other damage to it, after wiping any grease from the area the boot is going to fit over the joint, once it is correctly in place get a good new clip and securely fit it holding the CV boot on tightly.
You can use the plastic ties but only if you have the proper tightening pliers to match, I have some metal strapping that I can use , but other than that there is the proper metal straps that come in a CV boot kit along with the grease, however again you need the proper pliers to secure the metal strap otherwise the boot will slide off again with same results.
It is grease rather than oil and has a sort of "antifling" capability,it doesn't fly off once slapped all over the inside of the joint.
Some French cars used to use a type of oil in their joints from the factory, but from memory they were not exactly CV joints mostly on Renault 5s and Peugeot 104s etc.
We used to say that CV joint grease sticks like sh*t to a blanket, it is very hard to wash off your hands, hence the need for your "marigolds".;)
Righto, thats helpful, thanks.

I will have some time on Friday, so if I can find a proper metal clip before then i'll give it a go.

I expect something will go wrong, so ill post updates lol
 
I triple checked the cv boot and it is completely undamaged so i'm going to leave it in situ, only the clip was loosened.

I cleaned it with an engine desgresant. Theres probably still a little of the old grease in there unseen, but hopefully that won't make too much difference.

I bought some clips but they look really cheap and nasty so i've had to order some more which are due to be delivered today.

IMG_20251108_103308.jpg


I'll pack the grease in next according to the note above. I'm not sure exactly what knuckles of the joint are, but i'll turn the wheel, pack as deep as i can, then turn the wheel again and repeat.

Does turning the axle make any difference, should i also do that?
 
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I triple checked the cv boot and it is completely undamaged so i'm going to leave it in situ, only the clip was loosened.

I cleaned it with an engine desgresant. Theres probably still a little of the old grease in there unseen, but hopefully that won't make too much difference.

I bought some clips but they look really cheap and nasty so i've had to order some more which are due to be delivered today.

View attachment 476206

I'll pack the grease in next according to the note above. I'm not sure exactly what knuckles of the joint are, but i'll turn the wheel, pack as deep as i can, then turn the wheel again and repeat.

Does turning the axle make any difference, should i also do that?
That is what I meant by saying turn the wheel, so you access the joint all the way around to pack with CV grease.:)
 
That is what I meant by saying turn the wheel, so you access the joint all the way around to pack with CV grease.:)
Thanks. I thought you were saying turn the steering wheel, not the axle. But i get it now, turn the steering wheel full lock to turn the car right, then turn the axle to pack in the grease.

I watched a youtube video not long ago that said you can diagnose cv joint problems by listening for bangs when you turn the steering wheel whilst driving the car. So it makes sense to turn the steering wheel and pack in as much as possible when i'm turning the steering wheel right (its the nearside cv joint).

The better clips came, and they're too short. So now i've ordered some more that will arrive on Tuesday/Wednesday.

I have the flu so i'm doing this job at my extra slow pace, lol. Never mind being on my third set of clips. I could bung on a plastic cable tie, but it might fail quite quick. I even have some metal cable ties, but i don't have a tool to get them tight enough.

I will pack some grease tomorrow though, will see how that works out, messy i imagine :)
 
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Last time I did this was on my Mk2b Punto 1.3. The joint was knocking and I was skint so took the clip of. squished (technical term) as much grease in there and in the boot that I could and then refitted a new clip.

I would advocate getting the proper CV boot clips and the crimping tool to install them that way you know its going to stay on tight and not leak or pop off the first time you go round a corner.

I would say it seems like a lot of water has gotten in there and so I would personally try to clean out what I can, before adding new grease.
 
I bought the tool necessary to crimp the clamps when i bought both previous set of clips, so I have two crimping tools now.

Neither set of clips i'm happy with, one set was too short, the other risked putting three little holes in the boot. So i'll wait on the next set.

I spent a fair amount of time getting rid of most of the old grease. I had my fingers in the boot ridges, and wiped inside the actual joint. The law of diminishing returns has kicked in now, i could keep taking bits of grease out indefinitely but i have to really try to find it.

Might need to cross my fingers... :)
 
The next set of clips will arrive tomorrow or Wednesday, so i'll pack it Wednesday, assuming its not chucking it down lol.

My GP has been giving me some grief...it failed to start yesterday so i had a trip to Halfords today to buy a tow rope, it has failed twice in the last couple of months for no particular reason, the starter is only a couple of years old but i'm going to have to replace it again. The exhaust fell off not long ago so i put another one on but its not an exact copy and is currently banging around unti i can reposition it. At least the throw out bearing has stopped buzzing at me.

My EVO is the stalwart driving 500-700 miles a week without a single bother. The problem there being the strut mount is not quite right, the brake discs and a caliper need replacing, the gearbox has a minor leak, plus rust issues. Can't say i want to get it through its next MOT with probably 135,000 miles on the clock, if it gets there.

As i got to this point in my message the quantity of miles I have done tallied up with the oil...and the EVO hasn't had any oil for too long, so I've just been out in the dark to top it up. The dipstick wasn't registering anything so i put a litre in. Just aswell these FIRE engines are errr fireproof eh lol. So thanks for the thumbs up today, it was a good reminder.

Putting a lot of miles on 3 aged Fiats is a lot of bother :)
 
The next set of clips will arrive tomorrow or Wednesday, so i'll pack it Wednesday, assuming its not chucking it down lol.

My GP has been giving me some grief...it failed to start yesterday so i had a trip to Halfords today to buy a tow rope, it has failed twice in the last couple of months for no particular reason, the starter is only a couple of years old but i'm going to have to replace it again. The exhaust fell off not long ago so i put another one on but its not an exact copy and is currently banging around unti i can reposition it. At least the throw out bearing has stopped buzzing at me.

My EVO is the stalwart driving 500-700 miles a week without a single bother. The problem there being the strut mount is not quite right, the brake discs and a caliper need replacing, the gearbox has a minor leak, plus rust issues. Can't say i want to get it through its next MOT with probably 135,000 miles on the clock, if it gets there.

As i got to this point in my message the quantity of miles I have done tallied up with the oil...and the EVO hasn't had any oil for too long, so I've just been out in the dark to top it up. The dipstick wasn't registering anything so i put a litre in. Just aswell these FIRE engines are errr fireproof eh lol. So thanks for the thumbs up today, it was a good reminder.

Putting a lot of miles on 3 aged Fiats is a lot of bother :)
I always tell my children, prevention is cheaper than cure. A regular look at levels under bonnet will keep an old car going.:)
 
I always tell my children, prevention is cheaper than cure. A regular look at levels under bonnet will keep an old car going.:)
I've been topping up the EVOs oil every couple of weeks, but I did a complete oil change a month or two ago and then got out of the habit. Wife has taken the EVO today, she was let out of work early on Sunday only for the GP not to start, she wasn't that pleased lol. The starter in the GP screeched very loudly at me this morning but has started ok 5-6 times since. The starter is just sticking and the car will start easily if I bump it. The problem is that she has to park on a hill at work and it can't be pushed. Hence the rather cool elastic AA tow rope I bought. Have you seen the stretchy ones? Nice piece of kit!
 
Its still clunking.

I figure it might be the other side, i recently changed the strut mount there and heard the clunking afterwards. I went looking for a problem with the suspension on one side then found the cv boot loose on the other and figured that was it.

Maybe i stuffed this up though, it was hammering down with rain and poor conditions to do anything, i just thought i'd give it a go regardless.

What should I do now?
 
If it’s bad then it’s time for a new CV joint

Good news is that you can do this yourself.

Bad news is more laying under the car in the cold/wet.

There are a lot of arguments for running a decent car, and paying someone else to do it

If it’s the inner joint then do the same with that, new clip and pack it out with grease.

Can you replicate the noise turning the wheel by hand with the car off the ground
 
Find a space where you can do some slow circles steering on full lock both ways . Try and work out which side noise is from.
This tests the outer cv joints.
 
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