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Broken Left Cv Boot

15K views 6 replies 5 participants last post by  Flotsam 
#1 ·
Why is it that whenever you bring a car in for work, it almost always leave needing other work? Anyway, I just got Aamco to install both my front and rear oxygen sensors because I could not get them out myself (seized badly, nothing I could do to loosen even after saturating them with WD40 and PBlaster). I was working basically with a set of ramps in my apt parking lot. Anyway, $160 for labor and shop fees to install both (brought my own NTK parts) is not too bad in my mind.

Now, onto the next issue. Looks like my left outer CV boot is torn and slightly leaking. How serious is this, how long can I wait? Also, can someone help me find a good place to get the parts needed? I much rather try to buy the parts myself and bring it in for them.
 
#4 ·
If it still has Hyundai axle, pull the axle and boot both ends.. Hyundai not sell full kit like Toyota, so you have to buy the outer in 1 box, and buy the inner in a box...

To boot an Elantra, you remove the inner joint and boot, then slide new outer down the shaft to the outer CV joint and assemble the clamps.. why put the old inner boot back on, only to need to pull it later somewhere and boot the inner.. do inner and outer and be done with it the first time.

Problem with aftermarket axle is that if boots need replace, nobody has boots for Joes' aftermarket axle, as parts not same dimension as the OE parts. I would not toss an OE axle unless it could not be serviced.

My 344,500 daily ride still has original axles in it, been booted 1 time (inner-outer), and joints filled with MOBIL-1 synthetic grease... no noises at all... just tire noises, and I need 4 tires already, been some 5yr now.
 
#5 ·
You can get stretch boots that save removing the driveshaft from the car and dismantling. See the J2 Lantra forum for threads on this. I have used stretch boots twice with success. It generally needs two people to get the boot over th eouter CV as they are tough to stretch but will go over. The second time was much easier because the boot was of a type that you softened in boiling water for 10 minutes making it much easier to stretch, using a lubricated cone, over the outer CV joint. Both boots are still fine; the first after two years of changing.

I see no point in changing the axle just for a split boot?? This would be extremely expensive in the UK.
 
#7 ·
I can give you an answer not based on a Hyundai but a VW Jetta I just had done. You can buy just the boot or even the boot and a new CV joint (either inner or outer) and it would be reasonable from a cost standpoint if you were doing the work yourself. At least on a Jetta this is a bit of work to pull the whole CV joint to replace either the inner or outer.

Once you have someone else doing the work the equation changes dramatically since the labor to rebuild the CV plus having to remove the wheel hub or the whole CV joint on top of it is just too much money in labor. So you are better off cost wise buying the rebuilt CV joint with the repacked inner and outer CV joints plus the new boots and just having them installed. and now they are under a warranty.

I don't remember how many miles you said, but it would really suck replacing an outer CV at like 120,000 mi and 6 months down the road having the inner CV go. It's just not worth it either for the mechanic or for you as an owner to deal with it. Fix it right and you won't have to worry about it.

Now all that being said if the CV boot is torn and you don't hear any clicking noise when you turn full lock to the left or to the right you have perhaps a bit of time. Be aware (and this is from a friends experience) if the clicking is really bad (i mean so totally loud you can't miss it) the CV joint itself fails by the bearing race just disintegrating. In some cars the CV shaft will flail around and potentially cause other damage (radiator!?) and at the very least you will need to get towed. If it is only a week or 2 I would take a large zip tie and try and hold the boot together somewhat so it doesn't totally shred apart.
 
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