Can Dual mass flywheel cause cambelt tension bolt to snap?

[Crasher]

It is mentioned in different parts of the VAG workshop manual which is confidential and so even if you got hold of a copy or print out, it would be inadmissible as evidence because you shouldn't have it, catch 22. Sometimes the text gives the torque (25Nm +45 degrees) and says replace the nut and stud, other sections for different cars with the same engine just say the torque spec BUT an accepted fact in the trade is that if a fastener shows an angle after a torque, it means those fasteners must be replaced and it is the rule we work to here, in fact that rule tends to be if you remove a bolt, you replace it, earlier today one of my techs was doing a CR TDI cam belt and put three new cam sprocket bolts in and torque + stretched them and then realised he hadn't double checked the timing which proved to be minutely out so we had to wait two hours for more new bolts. The tensioner stud is shown as being 10Nm torque in one section and 15Nm in another which is I presume means the torque a new stud should be set to in the head but this is highly confusing as the info for replacing the stud states it should be only nipped down with thread lock and that same info could confuse some people to set the tensioner nut at 10Nm or 15Nm. In a TPI of the subject, it also points out that a new stud should be installed so that the M10 to M8 transition chamfer is below the head surface so that the tensioner hole does not load up on this radius which causes the stud to break and that the hole in the head may need tapping out deeper to achieve this. The whole subject boils down to experience. It has been suggested that the stud only needs changing if the people who did the last belt overtightened it, but how on earth are you supposed to know that? SO, amongst those int trade and clued up owners it is getting very well known that the best course of action is to replace it, as the part costs £1.38 from VW and it alarms me that a trader does not know this.

[keithyt]

thanks again Crasher. I do not think because something is confidential it can be discounted as evidence. Do you know how I could get a copy? Online anyway?

[Crasher]

PM me your email and cars reg and I will send you what exactly applies to your car plus what else I can find on the subject.