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NineCherries



Member Since: 10 Aug 2019
Location: Falkirk
Posts: 47
Scotland 2000 Defender 110 2.5 TD CSW Oslo Blue
What is the front bumper bolt torque setting?
I'm possibly being daft but I googled and searched on here and I've not found the answer. Only thing I found was under unclassified bolts M10 -> 45nm.

Is that correct for the bumper? Can anyone confirm.

I had the bumper off to fit some recovery points so want to be sure.

Thanks in advance πŸ‘πŸ»
Tony.
Post #851181 20th Aug 2020 7:10pm
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
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Italy 
It's a bumper! close it "just enough" Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License
Post #851243 21st Aug 2020 8:08am
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NineCherries



Member Since: 10 Aug 2019
Location: Falkirk
Posts: 47
Scotland 2000 Defender 110 2.5 TD CSW Oslo Blue
i hear you, its not the bumper i'm worried about its the recovery points on the same bolt.
Post #851249 21st Aug 2020 8:42am
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rockster57



Member Since: 15 Nov 2014
Location: West Yorkshire
Posts: 937
United Kingdom 2011 Defender 110 Puma 2.4 CSW Zermatt Silver
In the absence of any manufacturer specific recommendation I would rely on the generic settings for the specific bolt size. Bear in mind these figures vary according to the spec of the bolts you are using. It’s 45Nm if you are using 8.8 bolts but if you have opted for a higher grade bolt for recovery purposes you will need to increase your torque setting accordingly.
Post #851272 21st Aug 2020 11:28am
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markb110



Member Since: 22 May 2010
Location: Guildford
Posts: 2627
England 2002 Defender 90 Td5 HT Epsom Green
dgardel wrote:
It's a bumper! close it "just enough"


I prefer the Hulk grip, slip, take the skin off my knuckles, swear, throw tool, go indoors for a cup of tea.

Works every time....... apparently British Leyland approved ...... Thumbs Up
Post #851274 21st Aug 2020 11:36am
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NineCherries



Member Since: 10 Aug 2019
Location: Falkirk
Posts: 47
Scotland 2000 Defender 110 2.5 TD CSW Oslo Blue
I appreciate the responses.

Yeah it's 8.8 grade bolts. 45nm it is then. πŸ‘πŸ» I did consider skint knuckle tight but.... πŸ˜‰

Thanks
Post #851321 21st Aug 2020 6:00pm
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Rashers



Member Since: 21 Jun 2015
Location: Norfolk
Posts: 3495
United Kingdom 2014 Defender 110 Puma 2.2 USW Corris Grey
markb110 wrote:
dgardel wrote:
It's a bumper! close it "just enough"


I prefer the Hulk grip, slip, take the skin off my knuckles, swear, throw tool, go indoors for a cup of tea.

Works every time....... apparently British Leyland approved ...... Thumbs Up


If it is a Friday, the chances are the bumper wouldn't have been tightened by BL Whistle
Post #851333 21st Aug 2020 8:12pm
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90 Dreamer



Member Since: 13 Jul 2019
Location: Oop North
Posts: 2145
United Kingdom 2016 Defender 90 Puma 2.2 HT Corris Grey
And probably would have had to weld the brackets back on at PDi........ Rolling with laughter
Post #851336 21st Aug 2020 8:15pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17362
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
When I bought my Defender the nuts plates into which bumper bolts screw were both missing, and the bolts, just dropped into the holes, were all that were holding the bumper on.
Post #851340 21st Aug 2020 8:29pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018
United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
I've always thought it was the chassis tubes doing all the work and the semi-captive nuts were just an afterthought - they're more of a half nut than full nut and wonder if that makes any difference to the torque loading they will take?


Click image to enlarge

Click image to enlarge
Post #851389 22nd Aug 2020 8:43am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17362
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Yes, it will reduce the max sustainable torque.

After my discovery mentioned above I used standard nylon insert flange nuts, a bit fiddly to get in place (winch bumper and steering guard fitted) and hold while tightening but far from impossible. A better engineered solution than the crappy nut plate in my opinion.
Post #851394 22nd Aug 2020 8:56am
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