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CarMan

Member Since: 29 Nov 2010
Location: Cotswolds
Posts: 1777

Unbolting seat sub-frame from runners

So, new seats arrived today and I thought they would be a simply DIY swap in minutes tonight, even for a spannering imbecile but clearly not, so:

I gather from Googling that the fixings between sub-frame and runners are M8 x 35 raised head countersunk bolts but what tool do I use to get them out (preferably without damaging, as they are they are unmarked) - folk talk about impact drivers (as they will be securely lock-tighted in) which I don't have, but I'm also not sure how you would access the rear one

Advice sincerely appreciated, thanks.

Numpty! Rob

1993 200tdi 90 hard-top
1998 300tdi 90 soft-top
2016 2.2 XS 90 hard-top

11th Dec 2019 8:22pm

Supacat

Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

2013 Defender 110 Puma 2.2 XS DCPU Keswick Green

Hey, shame nobody has given you a definitive answer, but happy to pitch in with some generic info. Never done this job in the Defender but have done it in a few different makes.

Not sure what type of bolt you are referring to, but does it have an Allen key head? You shouldn't necessarily need an impact driver, but may need an Allen key socket and something like a wobble drive extension if access is limited. If loctited in then better go for a 3/8ths or 1/2 inch drive rather than 1/4 inch to be sure and just go steady. Once a bolt is cracked it should go quite easy. Make sure you wire brush all the old dry loctite off before refitting, and be gentle and rethread by hand to start with. Not sure if all the bolts are the same length, so pay attention where you take each one out from, and make a note of any washers, shims, etc and their location.

12th Dec 2019 6:44pm

CarMan

Member Since: 29 Nov 2010
Location: Cotswolds
Posts: 1777

Really appreciate the reply. It's actually a cross head which I believe to be Pozidrive, so have today acquired one of these from Halfords which I hope will do the job in my 3/8ths drive - thanks for the confirmation and advise regarding loc-tite. If I slide the seat forwards I now realise access should be ok

Click image to enlarge

12th Dec 2019 6:53pm

mcma1

Member Since: 16 Oct 2012
Location: Northern Ireland
Posts: 2870

Did you get sorted? These can’t be tricky and you can end up with the dreaded spinning rivnut . Hopefully it worked out Andy

2014 Fuji 110 SW LS3
https://www.defender2.net/forum/post751233.html#751233

2014 Corris 110 SW
http://www.defender2.net/forum/topic40056.html

My old Xtech 90 build..
http://www.defender2.net/forum/topic15681.html

LS3 V8 build...
http://www.defender2.net/forum/topic49051.html

17th Dec 2019 6:47am

CarMan

Member Since: 29 Nov 2010
Location: Cotswolds
Posts: 1777

Yes, thanks, actually they came undone more easily than I expected

17th Dec 2019 8:30am

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