HELP- snapped a threaded rod!!

[sam.cath]

Hi,

Just tried to fit my secondary battery tray & overtightened the nylock nut on the threaded rod attached to the inside the wheel arch & it snapped off.
It seems that every brand of tray uses this damn rod as an attachment point, so I can't even buy another brand of tray.

First & hopefully last time I'll ever do this!

Has anyone had this happen & can suggest a solution.

I'm wondering if a couple of little welds between the remain gin rod & the tray edge right next to it could hold it down as I don't imagine needing to get it out ever (might regret this option).

Thanks,
Sam

[sam.cath]

BUMP

Would appreciate any suggestions please....

[craka]

Does the threaded rod that is currently snapped off, thread into something at the other end. Could you get something in to grab it and unthread it and put a new rod in?

[sam.cath]

It looks like it is attached to the underside of the wheel arch on the tyre side. It is underneath some sort of rock-hard protective material that lines the inside of the wheel arch on the outside the car.
There's another threaded rod in the engine bay nearby, which appears to have a similar bulge underneath the hard protective material above the tyre in the wheel arch area.

Not sure how to access this to replace the bolt that becomes the threaded rod that has snapped off??
Don't know how this would be attached the car as well?

Appreciate your help

[sam.cath]

In reading your post again, I'm not sure if it is just a rod that is threaded into something rather than a bolt??
Not sure how I'd find out??
There's about 3-4mm of the rod left sticking out, so it might be possible to undo it if it were just a rod threaded into something??

I honestly don't have a clue?

[craka]

Yeah sorry I don't know , I haven't encountered the threaded rod that you have a problem with. I wonder if the other end is welded to the body?

[sam.cath]

Thanks cracka.

There's 2 of them right near your fuel filter on the top side of the wheel arch. Painted the same colour as your car.

Would love it if they were just rods that screwed into some bracket & could therefore be replaced without having to mess with welded rods etc.

Maybe someone else on the form has an idea as to whether they're just screwed in threaded rods or if they are welded rods/bolts through & to the wheel arch & therefore I'm in trouble!

Appreciate our input.

Cheers,
Sam

[old Jack]

Hi Sam,

I do not have a Gen 4 so this is just a best guess based on looking at the Body Section of the online manual.

It appears to be a threaded welded stud, that it is in the single skin section of the inner guard. If this is correct then best repair will be to drill through the centre of the broken stud, and then fit a M6 high tensile flange head bolt with a large diameter washer in the hole. Make sure you de-burr both side of the hole, this will reduce the chance of a crack propagating from the hole. Auto parts stores like Repco sell Champion brand HT flange head bolts with nyloc nuts in small packs, these bolts are gold passivated so they are corrosion resistant.

OJ.

[eman]

Either drill it out as OJ suggested or go with the ARB tray as from memory it doesn’t use that stud, also means a smaller battery though.

[sam.cath]

Thanks guys.
Bugger that it's not just a screwed in threaded rod.

Appreciate your suggestions.

I was wondering also about gettting a welder to do 2 small tacks between the remaining snapped off piece of threaded stud & the battery tray to hold it down, as they are flush with each other & closely approximated.
It will have the weight of the battery on it, so would hopefully be OK.

Only issue I can see is if I even need to get the tray out, but maybe I can just cut or drill through the weld tacks?

Not sure if this would be a very bad option though?

Cheers,
Sam

[geopaj]

I’d drill it out and use a through bolt through the inner guard. Cheap, easy to do, and easy to remove the battery tray

[sam.cath]

Thanks geopaj.

Just a bit nervous about it only being a single skin part of the inner guard which may tear as Old jack said in his post.
Also, it has some sort of very hard protective lining in the wheel arch (above the tyre) that would have to be compromised to replace this threaded rod & I don't know how this would be reapplied safely?

Would get someone else to do it as it's beyond my skill set.

[sam.cath]

Can't imagine how this protective rock hard lining would be removed to access the stud to replace it?

[dhula]

Pretty sure that is a "bolt" welded to the panel so can't be unscrewed.
Best option is to remove and either use a nut and bolt through the hole with body washers or resize the hole in the panel to use an appropriate sized rivnut and then a bolt.
Your idea of welding will work but as you say, removal will be a PITA. Make sure everything that is fitted underneath the battery tray is in place and ready to go before committing to welding it

[sam.cath]

Thanks Dhula.

Appreciate your input.
Will talk to some specialists tomorrow on both options.

Cheers,
Sam


PS. Photos rotated on uploading- so broken threaded rod is the bottom right in the pics