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Jun 14th, 2026
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Joined: Feb 2010
Posts: 1,415
Has a lot to Say!
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OP
Has a lot to Say!
Joined: Feb 2010
Posts: 1,415 |
 A 2M long bar with me having to bounce on the end of it, that means it was taking the thick end of 1200 Lbs/ft of torque to undo the wheel nuts. That's too damn tight.... (And yes I'm aware that in the picture hanging off it would tighten the wheel) Simon @ SiFab.co.uk
Simon @ Sifab.co.uk
Sifabtemporary@gmail.com
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Joined: Apr 2011
Posts: 8,015 Likes: 1
Posting Desperado Talk Morgan Guru
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Posting Desperado Talk Morgan Guru
Joined: Apr 2011
Posts: 8,015 Likes: 1 |
So you will go down in the club as the bloke with the tightest nuts . 
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Joined: Dec 2009
Posts: 37,410 Likes: 977
Tricky Dicky Member of the Inner Circle
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Tricky Dicky Member of the Inner Circle
Joined: Dec 2009
Posts: 37,410 Likes: 977 |
That is serious torque - I have the Morgan lightweight alloys on my Plus 8 400ftlbs is about right I think which is a big bar at about 3' I think.
They are similar fixing to the Aero I believe.
2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev
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Joined: Apr 2014
Posts: 5,182 Likes: 2
Charter Member
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Charter Member
Joined: Apr 2014
Posts: 5,182 Likes: 2 |
Wont that sort of force, set up the risk of stress fractures?
Last edited by Ray; 15/11/16 01:20 PM.
.+8 Now gone for a 1800 4/4. Duratec in bright yellow.
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Joined: Feb 2010
Posts: 1,415
Has a lot to Say!
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OP
Has a lot to Say!
Joined: Feb 2010
Posts: 1,415 |
That is serious torque - I have the Morgan lightweight alloys on my Plus 8 400ftlbs is about right I think which is a big bar at about 3' I think.
They are similar fixing to the Aero I believe. Aero wheels should be tightened to around 380 lbs/ft They don't come loose at that. Most of the issues are because people don't torque them up properly, and guess "a big bar at about 3ft....." I broke a 4 ft 1/2" drive breaker bar trying to loosen these off The wheel nut is the same as the "lightweight" alloys (a bit of a misnomer as they are actually heavier than the standard alloys). Although on the Aero the wheels are peg drive rather than spline drive as on the +8 Simon @ SiFab.co.uk
Simon @ Sifab.co.uk
Sifabtemporary@gmail.com
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Joined: Oct 2013
Posts: 6,723 Likes: 2
Talk Morgan Sage
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Talk Morgan Sage
Joined: Oct 2013
Posts: 6,723 Likes: 2 |
Blimey..!! 
Steve
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Joined: Jun 2008
Posts: 1,597
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Jun 2008
Posts: 1,597 |
Show me yours and I'll show you mine. "nut crackers", you can't live without them.  
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Joined: Aug 2013
Posts: 15,794 Likes: 15
Formerly known as Aldermog Member of the Inner Circle
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Formerly known as Aldermog Member of the Inner Circle
Joined: Aug 2013
Posts: 15,794 Likes: 15 |
Makes me very happy that I have 5 normal wheel nuts tightened to 85 ft lbs on to 5 conventional studs on Tarka.
I'll bet I can undo all 5 more quickly than you can release your one!
Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...
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Joined: Jan 2011
Posts: 5,549 Likes: 67
Charter Member
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Charter Member
Joined: Jan 2011
Posts: 5,549 Likes: 67 |
I would like to meet the chap who tightened those nuts so that I could avoid him in a pub fight !! 
Here for a good time not a long time!!
Reg
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Joined: Jul 2016
Posts: 180
L - Learner Plates On
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L - Learner Plates On
Joined: Jul 2016
Posts: 180 |
That is serious torque - I have the Morgan lightweight alloys on my Plus 8 400ftlbs is about right I think which is a big bar at about 3' I think.
They are similar fixing to the Aero I believe. Aero wheels should be tightened to around 380 lbs/ft They don't come loose at that. Most of the issues are because people don't torque them up properly, and guess "a big bar at about 3ft....." I broke a 4 ft 1/2" drive breaker bar trying to loosen these off The wheel nut is the same as the "lightweight" alloys (a bit of a misnomer as they are actually heavier than the standard alloys). Although on the Aero the wheels are peg drive rather than spline drive as on the +8 Simon @ SiFab.co.uk 380 lbs/ft = 515 Nm. Torque = Force x Distance, & Force = Mass x Acceleration (using gravity at 9.81 m/s2) Therefore Torque = M (kg) x A (m/s2) x D (m). Assuming you weigh say 85 Kg, & have a 0.6 m long bar (2 ft), when you stand on it will give a Torque of 85 x 9.81 x 0.6 = 500 Nm. Therefore you need a bar just over 2ft, not a 3 ft bar. I have a 3/4" drive Draper extending offset wrench, which has 3 length settings, 0.3m, 0.6m & 0.9m. Seems just the job to me but not yet used it in anger
Last edited by Volvos60s60; 15/11/16 06:05 PM.
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