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any of you honda atvs or utvs that have a rubber boot on the drive shaft can get water in the engine oil through the smallest of cracks, tears, or holes in the boot. Especially if youre doing extensive travel in mud and water. If you have water in your oil thats where i'd look first( inspect the drive shaft boot)
You must replace entire axle.
In order to replace a Renault Megane Scenic drive shaft gaiter, a boot kit can be purchased. This kit not only includes all needed parts including the required lubrication but also a step by step guide to replace the boot. Installation includes splitting the drive shaft and repacking the bearings so proceed with caution.
A link to the manual describing the process is in related links.
Check the drive axle for a broken and leaking boot or bad CV joint.
Change the entire drive shaft. Chances are, if the boot needs to be replaced, the axle will go out because moisture and dirt has contaminated the CV bearings.
you can get the cv boot kit that you can glue the join on rather than taking the drive shaft off
One or both of your cv boot/s is torn or has a hole in it. the cv boot keeps the drive shaft lubricated and dirt/debris out of the gears that turn your wheels. chances are that you might already need a new half shaft.
If the "knocking" sound is a heavy clicking sound when turning, and if the vehicle is front-wheel-drive, you probably have a worn CV joint, often referred to as a half-shaft. This problem can sometimes be temporarily corrected by repacking the joint with grease and replacing the rubber CV boot which is probably torn. Usually, however, it is best to replace the shaft since it is necessary to remove it to replace the boot anyway, and this constitutes most of the labor. On the other hand you can do a bit of a cheat by cutting off the old boot, repacking the joint with grease, and re-covering it with a special split boot that does not require removal of the shaft. A CV joint (Constant Velocity Joint) is the equivalent of a Universal Joint in the drive shaft of a rear-wheel-drive vehicle.
The Prop shaft (front drive shaft) has a ball type cv joint that sits in bearings that connects to the transfer case. This is most likely shot and you need a front prop shaft (front drive shaft) complete with rubber boot and differential cv universal joint.
the boot you can tell with a visual inspection. there should be no tears in the boot. the boot is there to keep grease in and debris out. if the boot is torn and most of the grease is gone you probably should replace the shaft. if you catch it soon enough though you can just replace the boot which is much cheaper.
the boot is actually a cover to keep out dirt you could go awhile but you really should replace it as soon as possible to keep the cv joint from being ruinrd by the dust and dirt