At the MOT of my 4x4 sapphire the tester was saying there was play in the front left wheel bearing. When I was going to replace it I found out the hub retaining nut was loose. I tightened it back to what it should be and there didn't seem to be any play more. I find it strange that the nut was loose, it probably was already loose when I bought the car half a year ago. Does this happen more often? At the left rear wheel the hub nut turns the other way to prevent it from coming loose and the nut is a nylon locking nut. But the left front one is just regular thread and has no nylon locking nut. To me it seems like it can be loose again next week, or not?

 

The passenger side one on my mondeo kept loosening itself even with 100 miles. Even tho it was a lock nut it still happened. In end i put thread lock on it also and it was gd.

 

it should have a nyloc nut on it mate.

 

On the Mondeo the aftermarket one had nylon but genuine ford one was like several plates in a cage

 

mine were nyloc and new ones i just fitted came with nyloc nut.. one usually white an other one green iirc

 

The one that was on there didn't have the nylon. I think that the new SKF bearing I ordered (which I didn't fit in the end) doesn't have the nylon either.

 

I dont know much about cosworths but use nyloc nuts every day at work as an engineer.Now i have always been told and company procedure is never to reuse a nyloc nut. Once we take them off we always replace with new.

 

ford use the plate type on the rear wheel bearings of escorts and fiestas as well

 

You are suppose to hammer over a bit of the nut with a hammer and punch Marc
I replaced both my front bearings (about £50-60) when I did the 300m brake upgrade.

Look on the stubaxle, there a flat where to hammer the flange of the nut.
I havn't done mine on the piccy because I hadn't torqued the nut when I did the picture.

 

you need a new nut as in the pic above

 

Ah, thanks Marty!