Removing broken bolts?

[FirstNissan]

Hey guys, my 2001 prizm has seen quite a few snowy winters here on the northeast. My splash guard is held on by 2 out of 5 bolts, three of them are broken and rusted. I would like to remove these broken bolts, the bolt head is gone so all I see is a short piece of the cylindrical bolt body. How would I go about removing these?

Thanks!

 

[dgee]

PB Blaster and a Vise Grip might work

 

[SLCraig]

Grind a slot into the shaft if you can.. (If you have access to a tool that can do that) A hacksaw could also work given you have enough space to fit it in that area.

 

[tig1]

Weld a nut onto the broken stud.

 

[SrDriver]

How about using an easyout?

Autoparts should have a kit.

 

[The_Jeff]

Regrettably, you're screwed. No pun intended. Splash guards are down in the nasty salt spray and are assembled with the cheeziest, easiest rusting fasteners they could possibly spec.

Best bet is to drill some new holes where you feel like it (like an inch away from the originals) and use self tapping screws with giant fender washers to hold it all together.

 

[bepperb]

First a penetrating oil and vice grips.

Then (if that doesn't work) a drill and an easyout or screw extractor (same thing).

 

[Food Scientist]

I have had success with a stud remover tool. I was able to find one at Advance Auto Parts for about 30 bucks. Stay away from the Craftsman as the teeth on those don't grip that well. The one from Advance gripped so well it twisted off a stud inside the stud remover.

 

[IndyIan]

Originally Posted By: bepperb
First a penetrating oil and vice grips.

+1 I'll grind two flats if there's enough room, to help the grips out. Take the mud flap off first too if you haven't yet. (Sometimes I need simple reminders like this...

)

 

[morris]

to keep that from happening again use anti-sieze compound on ALL bolts on the bottom of the car. even the break line tube nuts.

 

[FirstNissan]

Thanks for all the responses!
Unfortunetly, there isnt much bolt to grab onto with vise-grips(tried), I have no welder so cannot go that route.
I have never seen an easyout/screw extractor for big bolts, wheres the cheapest place to get a set, harbor freight?

 

[Merkava_4]

1. Grind whatever's left flat.

2. Center punch the flat section you just ground.

3. Drill out with the appropriate sized left-hand drill bit.

4. Install EZ-OUT and turn with tap wrench counterclockwise.

 

[mechtech2]

Like mentioned, 'loose juice' and vise grips are #1.
You probably should remove the guard, first.
Drilling them out would be my next try.
You may have to use a larger screw for the repair, or get new clip fasteners - whatever works.

Another option is to simply grind them flat or ignore them.
Drill new holes and use new fasteners.