Hello!

 

I've been reading about timing belt tensioner studs failing on 2.0 pd engines (mine is a BMM).

I am soon replacing the timing belt for the 2:nd time for this car (done at the dealer last time, by last owner)

The dealer changed the tensioner stud to: N 902 964 01 (from a M8 : N 014 593 1 )

Do i need to change the stud again or just use a new nut to the tensioner?
The newer stud is a M10 stud, the old one was m10 in the head and m8 for the tensioner nut.

 

 

Thanks!

My tensioner nut undid and wrecked the engine (BKD),so I would deffo find out what id needed and do it, VERY POOR DESIGN stud/ nut combo too small, cheapskate VW .

It the new stud safe to reuse?

Anyone?

Skoda timing belt kit for my BMM engined Scout replaced last year included new stud so I say yes to replacement, for a few pennies simply not worth taking any risk when you consider the consequences.

 

Scott

What Scott suggests makes a lot of sense. You'd kick yourself if anything happened so it's not worth taking the risk IMO.

What scares me to replace the stud is that I have read about pepole striping the threads in the head when replacing the stud. the threads seems to be brittle.

Was your kit a genuine skoda kit, that included the stud? or was it the " 051198119 repair kit for toothed belt", with the M10 stud?

 

Seems to be the older stud that is a M8 that snaps (see attachment)

Edited 3 May, 201511 yr by oiltop

What scares me to replace the stud is that I have read about pepole striping the threads in the head when replacing the stud. the threads seems to be brittle.

Was your kit a genuine skoda kit, that included the stud? or was it the " 051198119 repair kit for toothed belt", with the M10 stud?

 

Seems to be the older stud that is a M8 that snaps (see attachment)

Genuine Skoda kit - Skoda must believe the stud MUST be replaced otherwise they wouldn't include it in the kit.

 

Scott .

When replacing a stud is it safe to use two nuts and tighten the stud? 
and then loosen the inner nut first after tightening.

The stud wasted not included at my dealership in The kit, have to buy it separatly. In The US They dont seem to have this problem.

Edited 5 May, 201511 yr by oiltop

I am worrying to much about this stud replacing... you can also read about striping the threads in the head. Seems to be wery brittle threads in the head...
And also worrying about the the tightening of the stud, that it will come loose...


When using double nut method is the risk of loosen the stund when removing the nuts smaller by loosen the inner nut?
And when loosen the inner nut there is a small chance of over tighten the stud, if you have tigthen the two nuts together to tight?
maybe it doesn't matter since you counter hold the other nut...

overthinking......