Author Topic: ahhhhhhh rear axle bolt snapped (again)  (Read 3646 times)

Offline hobbiniho

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ahhhhhhh rear axle bolt snapped (again)
« on: 07 January 2008, 18:23 »
right this is really starting to piss me off  :angry: :angry: :angry: iv replaced the rear bushes with powerflex ones and when tightening the bolts with a torque wrench to 60nm (according to the haynes book of lies) they just SNAP now as i am a bit of a novice mechanic is there something i could be doing wrong??? i mean how hard is it to tighten a nut, this is the second bolt that has done this and it is starting to get expensive at £1.09 for each bolt  :grin: and more so it is holding up the progress of my project, and iv been waithoing since before christmas for this bolt only to go and snap it  :cry: :cry:

Offline Chris-White

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Re: ahhhhhhh rear axle bolt snapped (again)
« Reply #1 on: 07 January 2008, 18:31 »
How accurate is your tourque wrench, i dropped mine and now its completely out of calibration and only clicks when it wants too, causing the snappage of one of my flywheel bolts.
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Offline Mew

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Re: ahhhhhhh rear axle bolt snapped (again)
« Reply #2 on: 07 January 2008, 18:33 »
i dropped mine and now its completely out of calibration

Using it as a breaker bar and a hammer probably contributed to that too :grin:

Offline hobbiniho

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Re: ahhhhhhh rear axle bolt snapped (again)
« Reply #3 on: 07 January 2008, 18:40 »
well i borrowed it off a mate and its pretty much brand new it doesnt click it vibrates  :rolleyes: :rolleyes:

Offline Dolly

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Re: ahhhhhhh rear axle bolt snapped (again)
« Reply #4 on: 07 January 2008, 19:00 »
ditch the torque wrench, using a sensible sized bar or a big decent rachet and just do it till its tight.

Offline hobbiniho

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Re: ahhhhhhh rear axle bolt snapped (again)
« Reply #5 on: 07 January 2008, 19:09 »
yeh tried that first time and it was no where near tight and it snapped thats why i borrowed this fancy torque wrench from my mate, is it possible that the haynes is speaking sh!t and that 60nm is far to tight, im sure that iv done things up tighter than that before, the front subfame bolts havnt snapped and i torgued them up to the right setting with the torque wrench

Offline golf mk2 tornado red

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Re: ahhhhhhh rear axle bolt snapped (again)
« Reply #6 on: 07 January 2008, 19:13 »
are they shoulderd bolts   are you running out ov thread and this causing them to snap

persuming there 17mm head and nuts .they will take a good 150nm

Offline Agreeable Slick

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Re: ahhhhhhh rear axle bolt snapped (again)
« Reply #7 on: 07 January 2008, 19:14 »
It's perfectly possible that haynes are wrong, i know they have the torque ratings for a fair few bolts on the mk2 wrong. By as much as 20nm.

Offline hobbiniho

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Re: ahhhhhhh rear axle bolt snapped (again)
« Reply #8 on: 07 January 2008, 19:49 »
right well im going to buy a new bolt tomorrow and ask the stealers what the correct torque rating is, as i hope that it is the haynes that is wrong well anyway iv taken a couple of pics of the offending bolt

are they shoulderd bolts   are you running out ov thread and this causing them to snap

persuming there 17mm head and nuts .they will take a good 150nm
   
ok so sorry for being thick but whats a shouldered bolt??? no they are not running out of thread, and how the hell am i managing to snap them with the torgue wrench set at 60 if they can take 150  :laugh: :laugh:



Offline Agreeable Slick

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Re: ahhhhhhh rear axle bolt snapped (again)
« Reply #9 on: 07 January 2008, 20:00 »
A shouldered bolt is referring to the collar around the top, just below where you put the socket.