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Hufflepuff

Member Since: 25 Oct 2014
Location: Hampshire
Posts: 725

Td5 swivel fill plug square socket size

Hello folks,

I replaced the front discs on my 2005 Td5 (with ABS) last week, and on one side only, had a load of oil/fluid come out from the swivel after undoing the top swivel pin bolts.

As I understand that the swivel is supposed to be filled with one-shot grease only (which I presume would not run out as a oily fluid), I suspect this means that the half shaft seal has let go and axle oil has made its way into the swivel.

The problem is - this swivel housing does not have a drain or level plug. Its one of the ones with only a filler plug - which is a square size recess which I have not been able to undo. Its bigger than the 1/2" square socket drive that the axle square recess plug uses. We attempted to construct a tool from square cutting a big bolt to fit - but that just twisted when we tried to undo the plug.

Does anyone know what size square I need for this plug please? Even better - any idea where I can buy one from? My Google skills are letting me down looking for such a socket.

Thanks lads.

Chris A.

11th Apr 2015 11:12am

Fatboy Slim

Member Since: 04 Feb 2008
Location: Bridgend
Posts: 1006

Should be a 3/8 square , I use a long 3/8 drive ratchet to undo them and turn the hub full lock outwards. If you look in through the hole with a small LED or similar torch you should be able to see the CV joint. If you turn the hub by hand the CV should 'pick up' the grease on the way round if the level is OK.

11th Apr 2015 3:38pm

Fatboy Slim

Member Since: 04 Feb 2008
Location: Bridgend
Posts: 1006

And just to add, I wouldn't loose sleep over the halfshaft seal. They always pass a bit anyway as when you turn lock to lock the shaft will move inwards and outwards ever so slightly and carries a bit of oil with it every time. Plus they're one of those things that you'll change and it'll be exactly the same in a fortnights time......wait until the swivels need a strip and rebuild I would.

11th Apr 2015 3:42pm

munch90

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

always used a 1/2 square drive extension square end in hole and normal breaker bar

11th Apr 2015 3:44pm

Hufflepuff

Member Since: 25 Oct 2014
Location: Hampshire
Posts: 725

Thanks for the replies gentlemen. Hmm I could have sworn a 1/2" square drive was loose in the hole. On reflection I think I'll not mess with it, as you suggested Fatboy Slim. It doesn't appear to be leaking at the moment with the swivel done back up, and the ball is moist, so I guess there is still something inside it - saves me a job as you say until they need rebuilding.

11th Apr 2015 5:18pm

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