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Broken knuckle bolt

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bigwinn
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Broken knuckle bolt

Post by bigwinn » Thu Oct 28, 2021 2:51 pm

Had to happen sooner or later I suppose: suspension knuckle snapped

Whats the views to resolve- extract it or replace the hub?
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Broken knuckle bolt

Post by enuff_zed » Thu Oct 28, 2021 3:35 pm

Looking at the rest of it I'd say replace the whole hub.
Simple enough to do.
Then maybe clean up and repair the old one ready for your next bout of hamfistedness. :poke: :D
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Broken knuckle bolt

Post by bigwinn » Thu Oct 28, 2021 4:46 pm

Snapped like putty

Would be prudent wouldn’t it
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Broken knuckle bolt

Post by JamesClements » Thu Oct 28, 2021 5:12 pm

You might get it out with a reverse screw extractor in or your could use a dremel burr and collapse what's left of the bolt in on itself (did this on my sump pan) but probably just as straightforward to replace the whole hub
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Broken knuckle bolt

Post by bigwinn » Thu Oct 28, 2021 5:38 pm

JamesClements wrote: Thu Oct 28, 2021 5:12 pm You might get it out with a reverse screw extractor in or your could use a dremel burr and collapse what's left of the bolt in on itself (did this on my sump pan) but probably just as straightforward to replace the whole hub
Cheers James

Got a couple of new hubs lined up for it-

Will be like triggers broom soon
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Broken knuckle bolt

Post by enuff_zed » Thu Oct 28, 2021 6:26 pm

If you want to recover the old one at some point try a thinnish drill, very fast. You'll knacker the drill bit but the heat may help loosen it. Then if you use a bigger drill bit, there's a chance you may actually be able to screw it all the way through and out the back.
Worth a try.
Another tip........... this sounds counter-intuitive but sometimes you can crack a bolt by tightening it a tiny bit first.

PS. Don't let anyone every tell you aircraft engineering is all fancy finesse. BF hammers and screwdrivers used as levers all day long. :rofl:
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Broken knuckle bolt

Post by bigwinn » Thu Oct 28, 2021 6:35 pm

Fully expecting the same the other side

And the two bolts on the tie rod and the wishbone are toast too

Angle grinder may be needed
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Broken knuckle bolt

Post by Jakg » Thu Oct 28, 2021 11:27 pm

JamesClements wrote: Thu Oct 28, 2021 5:12 pm You might get it out with a reverse screw extractor in or your could use a dremel burr and collapse what's left of the bolt in on itself (did this on my sump pan) but probably just as straightforward to replace the whole hub
It's a high tensile bolt, it'll be very difficult to cut / drill out.

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Broken knuckle bolt

Post by Casper355 » Fri Oct 29, 2021 6:08 am

That is quite some rust!

The same happened to me. I welded a nut on the other side and was able to get the rest of the bolt out. First I cut the middle part of the bolt, which is visible, away so the rust does't need to go trough the thread. I had to get the whole hub on the bench to get the rest of the bolt out. You should be able to get the shock absorber out because there is no clamping force anymore.

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Broken knuckle bolt

Post by firebobby » Fri Oct 29, 2021 7:06 am

Has your car lived by the sea at some point in its life?
That's really rusty
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Broken knuckle bolt

Post by bigwinn » Fri Oct 29, 2021 7:16 am

I think a previous owner was a fan of parking in rivers
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Broken knuckle bolt

Post by enuff_zed » Fri Oct 29, 2021 7:56 am

bigwinn wrote: Fri Oct 29, 2021 7:16 am I think a previous owner was a fan of parking in rivers
Is that the car with the full Aqua kit on it?
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