Bolt size on swivel ball

payydg · May 14, 2015

Dumb question but what size are the bolts that hold the swivel ball onto the front axel on a 1991 200tdi defender 90. H reg.

I've got a metric and imperial set but none fit that well. It's the orig ball so I wonder if they've just corroded.

Ta

Brown · May 15, 2015

whatever size they are they might benefit from a clear out with a tap. They get a bit congested with old thread locking compound. You can usually tell by feel within a turn or so whether a bolt is meant to go into a hole - if it's the wrong thread you meet much stronger resistance and it feels like you're trying to push metal out of the way!

payydg · May 15, 2015

The Prob is getting them off! None of my ring spammers fit properly and I'm starting to round them off.

Just wondering if there's a odd size that I'm missing.

oddwriter · May 15, 2015

They're a Whitworth/BSF size - can't remember the exact spanner size, but the bolts are 3/8 in BSF. Have fun!

chrisstdt · May 15, 2015

Got mine off with a 14mm ring spanner but they had been replaced so werent that rusty ,if i ever have to do the other side i can see me having to cut them off as the heads look to be made of cornflakes !

Jam1 · May 15, 2015

What type of spanner are you using bihex, hex or hopefully not an open ender?

Southernlandy · May 15, 2015

Should be a 13mm Bihex. Anything else will round them off

aaronmorris · May 15, 2015

They are usually covered is crud and crap, give them a good wire brush and the spanner a good wiggle to get it on. Should be 14mm.

payydg · May 15, 2015

Hi all, thanks for the help. A 14mm is too loose and starts to round it off, 13 won't fit tho maybe I'll try a good clean. I'll try a 3/8 BSF

200tdi ayre · May 15, 2015

the head " should" be 14mm (9/16 technically) as i've just changed 2 swivels today although age may make them smaller

Brown · May 15, 2015

Sorry - thought you meant the threads not the heads .

The Mad Hat Man · May 15, 2015

on my 94 disco they are definately 14mm

Bolt size on swivel ball

payydg

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Brown

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payydg

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oddwriter

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chrisstdt

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Jam1

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Southernlandy

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aaronmorris

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payydg

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200tdi ayre

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Brown

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The Mad Hat Man

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