GolfGTIforum.co.uk
Model specific boards => Golf mk6 => Topic started by: Olifran on 14 April 2014, 10:47
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Hi,
Has anyone changed their rear (offside) wheel bearing assy?
Looks quite an easy job apart from breaking the torque on the calliper frame bolts and the bearing assy bolt (150lbs/ft! :shocked:)
Not sure if I fancy doing that while on axle stands!
Are SNR bearings any good? Can get the assy for £75 from eurocarparts.
Reason I’m changing mine is that there is a drone coming from rear offside. Tyre doesn’t look like it’s got any sawtooth on it and also tried my spare tyre and it still made the noise.
Thanks
Chris.
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Caliper frame bolts easy! The hardest bit will be cracking the centre spline bolt off that holds hub to assy
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Could I do that one while the car is still in the ground?
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Defo thats the safest way wheel centre cap out chock wheel breaker bar and a scaffold pole
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Defo thats the safest way wheel centre cap out chock wheel breaker bar and a scaffold pole
Agreed. But remember you need to get the torque back in the when installing the new bearing. Its something like 150 foot il and the half a turn...so keep the scaffold pole around :laugh:
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Defo thats the safest way wheel centre cap out chock wheel breaker bar and a scaffold pole
Agreed. But remember you need to get the torque back in the when installing the new bearing. Its something like 150 foot il and the half a turn...so keep the scaffold pole around :laugh:
Sorry to get boring but adding tge scaffold pole to a torque wrench will change the torque you'ill have to work it out i'll get bk to you with calculation can't remember off hand
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Required trq x original length over original length + extension
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Why would adding an extension bar/scaffold pole (of any length) to a torque wrench change at what point the wrench went "click"?? It would click at the set torque... It's up to you to stop applying force at that point! All the bar is doing is changing the applied force needed to reach the required setting.
Mattyj, I think the calculation you posted is for calibration of a torque wrench where it's imperative to know where the applied pressure is on the handle?
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Wrong google it
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Well i think im going to let someone else do it as I cant be bothered buying all the necessary equipment that my toolbox is lacking and i dont want to get stuck trying to break the torque or re-apply it to the new one. Had a few interesting quotes for labour as follows:
Mobile Mechanic A - £30
Mobile Mechanic B - £50
Lookers Preston - £117!! :grin: :rolleyes:
ICA (Ian Collins) - £75 + VAT
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£30? Thats pretty dam cheap
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Yeh, most coming in around 1 1/2 hours labour mark. Mainly between £50 to £80. No one got back to me yet as I want it doing in the am tomorrow. Toying with buying the spline bits and breaker bar and doing it myself.
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Wrong google it
I did...
Only time an extension bar changes the torque setting is if a 'crows foot' extension is used.... Which is an extension between the bolt/nut being tightened and the end of the torque wrench.
And yes £30 is pretty damn cheap, not worth getting the axle stands out :smiley:
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Well i studied engineering thats we got told
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Here is a typical problem:
You have an adapter 42" long and you want to acheive a torque at the nut of 256 lbs.ft.
Your torqye wrench is 18" long.
So, using the above letters:
A = length of torque wrench = 18
B = length of adapter = 42
C = torque wrench setting = ?
D = desired torque at end of extension = 256
So, with your 42" extension on your 18" torque wrench, to acheive 256 lb.ft at the nut you need to set your torque wrench to 76.8 lbs.
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Can someone just confirm it's 180NM plus another 180 deg for the 18mm bolt.
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Wrong google it
I did...
Only time an extension bar changes the torque setting is if a 'crows foot' extension is used.... Which is an extension between the bolt/nut being tightened and the end of the torque wrench.
And yes £30 is pretty damn cheap, not worth getting the axle stands out :smiley:
Or a torque multiplier. Adding a bar wont add torque to a torque wrench, it will still go click were where you set it to. My point was that you will need the bar/pole to get the nut the extra 180, any torque wrench will reach its max possible torque with its own length of handle anyway. Yes 180nm, see below for mk5
http://workshop-manuals.com/volkswagen/golf-mk5/running_gear_axles_steering/rear_suspension_drive_shaft/assembly_overview_wheel_bearing_housing_trailing_arm_(front-wheel_drive)/removing_and_installing_wheel_bearing/wheel_hub_unit/ (http://workshop-manuals.com/volkswagen/golf-mk5/running_gear_axles_steering/rear_suspension_drive_shaft/assembly_overview_wheel_bearing_housing_trailing_arm_(front-wheel_drive)/removing_and_installing_wheel_bearing/wheel_hub_unit/)
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Wrong google it
I did...
Only time an extension bar changes the torque setting is if a 'crows foot' extension is used.... Which is an extension between the bolt/nut being tightened and the end of the torque wrench.
And yes £30 is pretty damn cheap, not worth getting the axle stands out :smiley:
[/quote
Or a torque multiplier. Adding a bar wont add torque to a torque wrench, it will still go click were where you set it to. My point was that you will need the bar/pole to get the nut the extra 180, any torque wrench will reach its max possible torque with its own length of handle anyway. Yes 180nm, see below for mk5
http://workshop-manuals.com/volkswagen/golf-mk5/running_gear_axles_steering/rear_suspension_drive_shaft/assembly_overview_wheel_bearing_housing_trailing_arm_(front-wheel_drive)/removing_and_installing_wheel_bearing/wheel_hub_unit/ (http://workshop-manuals.com/volkswagen/golf-mk5/running_gear_axles_steering/rear_suspension_drive_shaft/assembly_overview_wheel_bearing_housing_trailing_arm_(front-wheel_drive)/removing_and_installing_wheel_bearing/wheel_hub_unit/)
Its no different to adding a pole to a spanner the torque wrench is designed to supply the torque set at that length i.e the length of the torque wrench end of
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Here is a typical problem:
You have an adapter 42" long and you want to acheive a torque at the nut of 256 lbs.ft.
Your torqye wrench is 18" long.
So, using the above letters:
A = length of torque wrench = 18
B = length of adapter = 42
C = torque wrench setting = ?
D = desired torque at end of extension = 256
So, with your 42" extension on your 18" torque wrench, to acheive 256 lb.ft at the nut you need to set your torque wrench to 76.8 lbs.
I think in this equation the extension is *between* the nut and the torque wrench.
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Here is a typical problem:
You have an adapter 42" long and you want to acheive a torque at the nut of 256 lbs.ft.
Your torqye wrench is 18" long.
So, using the above letters:
A = length of torque wrench = 18
B = length of adapter = 42
C = torque wrench setting = ?
D = desired torque at end of extension = 256
So, with your 42" extension on your 18" torque wrench, to acheive 256 lb.ft at the nut you need to set your torque wrench to 76.8 lbs.
I think in this equation the extension is *between* the nut and the torque wrench.
Yep. Else you would have to change the setting if you held a torque wrench half way down the handle..
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Yep. Else you would have to change the setting if you held a torque wrench half way down the handle..
Or held the wrench perpendicular at arms length...... Depending on the length of your arms!!!
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Rite do what you want i'm an engineer asked three others tonight who asked me are you lot stupid do what you want
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http://www.dmctools.com/Products/torque_conversion_charts.html
http://www.engineersedge.com/manufacturing_spec/torque_wrench_1.htm
https://www.motorcraftservice.com/renderers/torquewrench/wrench_formula_main_en.asp
http://www.specialpatrolgroup.co.uk/spooky/torque/torque.html
http://www.freeinfostuff.com/TorqueExtension/TorqueExtension.htm
All with the extension BETWEEN THE NUT TO BE TIGHTENED and the torque wrench....
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As i said do what you like
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:laugh: