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Drive shaft knock

igol
igol
in Ford Fiesta Club

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Following the MOT I swapped out the driveshafts, one oil seal and tie rods on the wife's 1.6 diesel Fester.

 

On full lock there is a loud knock which you can feel through the pedals.

I've had a poke around underneath there is lateral play in the left side drive shaft which could possibly be the cause.

Obviously it does need to move a bit but this seems excessive to me and pretty sure that you shouldnt be able to move it by about 10-20mil.

Oil seal looks fine and it was replaced with the half shaft. 

I have noticed that Autodoc does have some variation in driveshaft lengths eg: Ridex 616mm and Magnetti 621mm.

So am I looking at the right cause and will fitting a thicker transmission side oil seal cure it?

 

  • Quote


    1 hour ago, igol said:

    ...will fitting a thicker transmission side oil seal cure it?

    No.  The seal doesn't hold the driveshaft in place.  Lateral play against a rubber seal will just damage it in a matter of weeks.

    If the wrong size driveshaft has been fitted then you'll need to replace that with the correct sized shaft.  

  • Quote
    • Author

    It seems on further inspection its the cv joint that has failed so I'm sticking a new one in.

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