broken tube bumper mounting bolt

This is the place to discuss restoration problems, post questions or projects-complete or partial.
Post Reply
backyardbill

broken tube bumper mounting bolt

Post by backyardbill »

One mounting bolt on my front bumper is broke off. Can anyone recommend a method to fix this?

:?: :?: :?:

Image
User avatar
124JOE
Posts: 3141
Joined: Fri Jun 24, 2011 7:11 pm
Your car is a: 1978 124 fiat spider sport 1800
Location: SO. WI

Re: broken tube bumper mounting bolt

Post by 124JOE »

drill it out and put in a new one from front
when you do everything correct people arent sure youve done anything at all (futurama)
ul1joe@yahoo.com 124joe@gmail.com
backyardbill

Re: broken tube bumper mounting bolt

Post by backyardbill »

Ok. Good idea. :D
spider2081
Patron 2024
Patron 2024
Posts: 3015
Joined: Fri Jan 27, 2006 11:45 pm
Your car is a: 1981 Spider 2000
Location: Wallingford,CT

Re: broken tube bumper mounting bolt

Post by spider2081 »

I just did that but just after I drilled the hole I realized it would have been easier to drill a tap hole and install a stud instead of a bolt. The material is plenty thick enough to tap. It was a little tricky welding the head of the bolt through the front of the bumper.
backyardbill

Re: broken tube bumper mounting bolt

Post by backyardbill »

I drilled the stud out, and then clean through the front of the bumper. However, I did have to grind out a larger opening in the front of the bumper in order to insert a bolt. I also had to cut away a small section of the backup plate that kept the original two bolt plate from dropping into the cavity. Then I gooped the underside of the new bolt with JBWeld and inserted it (area was too tight to weld the bolt). The new bolt is nice and tight now, and if it ever spins on future dissambly, I can put a socket through the access hole to hold it. I'm happy with the results and it was a cheap fix. :D

I will add a photo later tonight for anyone else interested in this repair.

Thanks for the suggestions and help.
Fiat88

Re: broken tube bumper mounting bolt

Post by Fiat88 »

backyardbill wrote:I drilled the stud out, and then clean through the front of the bumper. However, I did have to grind out a larger opening in the front of the bumper in order to insert a bolt. I also had to cut away a small section of the backup plate that kept the original two bolt plate from dropping into the cavity. Then I gooped the underside of the new bolt with JBWeld and inserted it (area was too tight to weld the bolt). The new bolt is nice and tight now, and if it ever spins on future dissambly, I can put a socket through the access hole to hold it. I'm happy with the results and it was a cheap fix. :D

I will add a photo later tonight for anyone else interested in this repair.

Thanks for the suggestions and help.
Sounds like the same repair the PO did on my car.
Post Reply