ATD engine belt change - which bolts to replace?

diyspanner

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I know the VWs tend to use one time only bolts in various parts so are there any in a timing belt change to consider?
 

Crasher

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We change ALL of them. According to the manual you can reuse the three for the consul to the block but we can’t take chances and I have seen these fail and split the block casting.
 

diyspanner

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Gates supply the new nuts for the tensioner and guide pulley but not the x3 bolts for the new water pump which is rather odd.
 

diyspanner

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When you say stud, are you referring to the peg the tensioner spins on?

If so, the the one the guide pulley spins on too surely.

Only way to unscrew them from the block is with vicegrips.

Apologies if I've misunderstood.

By the way, what about the x3 cam sprocket bolts - replace?
 

Crasher

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Spins on perhaps sounds too fast, more rotates on until the (new) nut is torque and angle to spec, the idler roller can be a stud or bolt, it varies but again yes... always replace. In the absence of a stud extractor, two nuts jammed together will work by spannering the inner nut. Sprocket bolts also vary, waisted thread top replace, parallel OK to reuse but as I always try and remember to say, we replace almost every fastener we remove except wheel bolts which are designed to be used time and time again... but we do stock the M14 common variety.
 
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