Help..knocking from front drive shaft

matteb63

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I have a V class 230 111 engineed ..When I lift my foot off the acelerator you can hear a knocking noise that disappears when engaging drive again... Im worried about the safty issue as I hsve to travel back to Wales with the Kids today..Anyone know what the problem might be?
Thankyou Mattt
 

djb

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in my experiance with front drive mini, polo,golfs etc drive shafts problems first show under load and at full lock, not on the overrun.

take a quick look underneath, usually a little in & out movement is ok however if you can lift them up and down, more than .5 mm then there is a problem.

Might not be drive shaft but diff / box. how fast is the knock, does it behave differently in a different gear. is it a one time knock, or regular withevery wheel revoloution?
 
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matteb63

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every revolution with no knocking under load.or when turning ..just over run..
 

djb

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every revolution with no knocking under load.or when turning ..just over run..
how heavy a noise? does it knock when coasting in neutral?

knock on overun engine off?
 
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matteb63

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Sorted ..Inner drive shaft to whatever it attaches to ..all the bolts where loose!
Thanks for your replys
Matt
 
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