wasting wheel bearings

[GodSpeed]

I keep wasting a lot of wheel bearings, both original ones and the ones sold by k-tec. Most of the faliures caused by the drive shaft nut getting loose. Clean drive shaft, correct torque and new nut every time. Anyone have a solution?

 

[Budgie]

What torque are you doing them up to?

Car got the correct lower arms/driveshafts etc in?

 

[BIGASH]

I keep wasting a lot of wheel bearings, both original ones and the ones sold by k-tec. Most of the faliures caused by the drive shaft nut getting loose. Clean drive shaft, correct torque and new nut every time. Anyone have a solution?

Exact same problem here mate! Can't understand it Please let me know how you get on with a solution!

 

[james_666]

Loctite lol might sound slightly bodgy but it works very well

 

[GodSpeed]

Exact same problem here mate! Can't understand it Please let me know how you get on with a solution!

I do consider drilling a hole through the threads of the driveshaft allowing me to use a locking pin.

 

[BIGASH]

I do consider drilling a hole through the threads of the driveshaft allowing me to use a locking pin.

Yes I've been thinking the same and at least that way it should stop the nut from coming off totally! It's an odd one

 

[Fred@BTM]

280nm?

 

[BIGASH]

That's what I've been doing mine to yes Fred!

 

[mr.pink87]

Considered Loctite?

 

[JackJack]

What do Burpspeed do?

 

[Goodj]

Out of interest, how much is a front drivers-side wheel bearing these days?

 

[GodSpeed]

280Nm for me too, does not help at all.

 

[rich-6]

When was your torque wrench last checked for accuracy?

 

[mr.pink87]

Out of interest, how much is a front drivers-side wheel bearing these days?

Around 80 quid from Renault.

 

[Goodj]

cheers for that Pink.

I did a forum search just now and it suggests that the problem may be rear bearings, which would be the 3rd party discs I had put on.

I need a good mechanic, somewhere near the docklands.... then Kwik fit to supply the pads!

Don't all laugh at once, their "free pads for life" aren't bad at all!

 

[mr.pink87]

Spacers on the rears fitted (correctly)? Hub nut torque correct? Really cheap discs/bearings?

 

[MartinR]

Distorted hub causing the bearing not to sit true??

 

[Daniel]

Have you ran a die over the driveshaft to make sure the threads not fcuked?

 

[Jay Payne]

What do Burpspeed do?

We dont tell all our hard earned secrets

 

[GodSpeed]

We dont tell all our hard earned secrets

I take it youve had the same kind of problem then?

 

[MicKPM]

Are you re-using the driveshaft nut? If so you should consider replacing it as they are nylocks and I bet the nylon band is non-existant

Mick

 

[Adam-o]

I've heard this might be caused by running bigger wheels than standard ones?

 

[.GAZ.]

I'd be using a castellated nut and locking pin.

 

[MicKPM]

A larger rolling radius will have no bearing upon the castle nuts ability to hold torque/clamping force.

It will naturally try to unwind as interia effects it. This is why we use Loctite on assemblies or nylock fixings as the plastic helps resist the unwinding effect.

I am willing to bet the nylock is worn or it's the wrong kind of nut (no collar).

Mick

 

[Goodj]

will have no bearing

 

[Fred@BTM]

Are you re-using the driveshaft nut? If so you should consider replacing it as they are nylocks and I bet the nylon band is non-existant

Mick

Front's aren't Mick

 

[Dan519]

Using non genuine nuts without a flange built in, or a separate washer?

 

[GodSpeed]

Using non genuine nuts without a flange built in, or a separate washer?

Nope, genuine bearing and new nut as it says in my first post.

 

[Dan519]

Nope, genuine bearing and new nut as it says in my first post.

says new, doesn't mean it's the right one. There's a lot of incorrect nuts supplied with wheelbearings

 

[GodSpeed]

says new, doesn't mean it's the right one. There's a lot of incorrect nuts supplied with wheelbearings

Naturally the same one supplied with a new genuine bearing.....

 

[Fred@BTM]

^that can be wrong sometimes also, its renault

 

[Jay Payne]

I take it youve had the same kind of problem then?

Nope, never

 

[GodSpeed]

Think I have come up with the cause of this problem as well as a solution. Most of the ideas are stolen from the VW golf community where early models suffer the same kind of problems.

Cause, seems to be play in the splines between driveshaft and wheel hub, even a tiny play there will start acting like a "wheel nut machine" hammering the nut loose not matter what torque.

Solution, I did solve the problem by using a OE rear nyloc nut in combination with the wonderful Swedish invention Nord-Lock. Its a very clever washer design wich makes it basicaly impossible for the nut to come loose. http://www.youtube.com/watch?v=mgwmuZuJ02I

This seems to work so far. If this wount work in the long run I will use the special VW glue/loctite on the splines in combination with the above solution.

 

[mikeh]

I was going to say - this is a big issue on the Focus ST, where there is play between the splines and the hub. The Ford Fix is to loctite the splines.