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Alextd5



Member Since: 11 Feb 2017
Location: Gloucestershire
Posts: 322

United Kingdom 2006 Defender 90 Td5 XS CSW Bonatti Grey
Crossmember tow bar thread clean
Hi i want to clean the threads on the crossmember for the towbar. I know they are m16 but i cant find a m16 thread chaser anywhere.

I want to fit a tow bar but looking at the thread it could do with a clean. Paint etc!

Cheers

Alex
Post #684205 4th Feb 2018 10:41pm
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Screbble



Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2274

United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
You should be able to get an M16 tap on eBay for less than a tenner, but you'll need to know the thread pitch as there are a few options.

Someone on here will know the pitch I'm sure, or you can probably get the pitch from the spec of the bolt. Thumbs Up
Post #684213 4th Feb 2018 11:12pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17869

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
If you have an angle grinder you can make a chaser by cutting a slot along an M16 bolt with a thin (eg 1mm) cutting disc.

Threads are standard M16 x 2mm pitch (coarse series).
Post #684220 4th Feb 2018 11:37pm
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BogMonster



Member Since: 05 Feb 2008
Location: Stanley
Posts: 403

Falkland Islands 2015 Defender 110 Puma 2.2 USW Corris Grey
+1 for the DIY version, run 3 or 4 notches up and down a bolt will do the job. Doesn't work so well for cleaning up corroded threads but it's fine for cleaning general cack out and much better than forcing a bolt in.

The two lower bolts are M16, the top ones are M12, if you don't already have a reinforcing plate then I would get one. I wouldn't put a tow hitch onto a late type (post 99) chassis without spreading the load between all the bolt holes including the ones on the bottom of the crossmember.
Post #684440 6th Feb 2018 12:56am
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NormanD



Member Since: 12 Aug 2011
Location: Bristol
Posts: 287

England 2015 Defender 110 Puma 2.2 USW Santorini Black
Whereabouts in Gloucestershire are you, I have a M16 X 2 Tap in North Bristol, give me an email, I'm sure we can arrange something. NormanD WE191

2015 110 XS Utility
2014 VW Caravelle 180 Executive
Post #684454 6th Feb 2018 7:56am
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