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DefenderJon

Member Since: 01 Dec 2012
Location: Sunny Ulster
Posts: 68

Hi guys, I've seen a lot about the flange bolts giving problems with old thread lock and sealant making the bolts bottom out and break. Just wondering if anyone knows the thread size of the bolts. I could of course remove them and measure them, but it would be nice to be able to dig out a tap to clean the holes before stripping them.

Thanks in anticipation.

Jon.

18th Jul 2014 9:31pm

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5843

1999 Defender 110 Td5 SW Caledonian Blue

Well as luck would have it, I have managed to remove the remaining bolt ends. I purchased this from Machine Mart
http://www.machinemart.co.uk/shop/product/...xtractor-s

Drilled into the remaining bolts and with a left hand thread on the extractor the studs came out without fuss, except one, that wanted to go in further as I drilled it.

All remaining bolt ends out, cleaned up the holes and fitted a new gasket and new flange bolts tightend to 65nm torque in a star pattern and job done.

When I found the sheared bolts it was the Sunday before I went away and not having time to research fully, I ended up ordered bits from Lloyds LR in Carlise, ordered a new Hub, a 52mm Sealey socket, a 13mm 1/2" drive multipoint socket and a 9/16th multipoint socket to find all I needed was a new gasket and 5 bolts.

When I looked at the hub, it looked like the holes for the flange bolts was threaded all the way. They are not - hence the purchase of a new hub!!!

But on the plus side, while I had the wheel off, I noticed I needed new rear brake pads.

Cheers all. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

19th Jul 2014 3:42pm

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5843

DefenderJon wrote:
Hi guys, I've seen a lot about the flange bolts giving problems with old thread lock and sealant making the bolts bottom out and break. Just wondering if anyone knows the thread size of the bolts. I could of course remove them and measure them, but it would be nice to be able to dig out a tap to clean the holes before stripping them.

Thanks in anticipation.

Jon.

Not sure on the thread size but the part numbers if you decide to buy new are
BX110095M and cost me £4.50+VAT from dealer (the bolts came pre-impregnated with adhesive
The gasket between the flange and hub is part number 571752 and cost me a whopping £0.98+VAT again from the main dealer

Edit: On the invoice it shows the the bolt as M10 x 45 but not sure on the thread. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

19th Jul 2014 3:55pm

DefenderJon

Member Since: 01 Dec 2012
Location: Sunny Ulster
Posts: 68

Thanks excossack. From memory I think they may be metric fine. When I get round to removing mine, I'll get the thread gauge on them and post the exact specs.

Thanks again.

Jon.

19th Jul 2014 5:18pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17372

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

I think that they're 3/8" UNF but I'll have to check. I have a box of grade 10.9 hex socket head capscrews that I use on mine, and I'll try to remember to measure on tomorrow or Monday.

19th Jul 2014 9:15pm

munch90

Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

sure the flange bolts are m10x1.5
prop bolts are 3/8unf

19th Jul 2014 9:24pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17372

Checked, deffo ISO M10 x 1.5mm pitch, standard metric coarse series, ie a bog standard normal M10 thread. The only unusual feature is that they're grade 10.9, not the usual 8.8. Normal hex socket head capscrews (what many people completely incorrectly call "Allen bolts") are 10.9 and much cheaper than the bolts from LR, and will do the job just as well. Unlike the hex head bolts, the SHCs also don't gouge your alloys if you're using spacers.

21st Jul 2014 10:33pm

Merlin

Member Since: 30 Oct 2010
Location: Newmarket
Posts: 981

I used 571752 which is the gasket but had to cut a hole for the ABS sensor. Is there a gasket with the hole already there?

Merlin

22nd Oct 2015 11:08am

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Old style and new style next to each other:

Click image to enlarge

As you can see I went from new to old style.

I reused the old washer between the bearing and nut again. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

22nd Oct 2015 3:20pm

Rickydodah

Member Since: 14 Jul 2014
Location: East Sussex
Posts: 1091

Merlin wrote:
I used 571752 which is the gasket but had to cut a hole for the ABS sensor. Is there a gasket with the hole already there?

Merlin

FTC3650. Is this what you need? Not a flange gasket but for the stub axle, the only one that I could think of which has an additional hole for the ABS sensor

I started with nothing and still have most of it left!

22nd Oct 2015 5:34pm

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