help - broken exhaust spring bolt
#1
Registered
Thread Starter
Join Date: Nov 2003
Location: andover, ma
Posts: 74
Likes: 0
Received 0 Likes
on
0 Posts
help - broken exhaust spring bolt
I was removing my exhaust from the cat back to put on a new one and the two spring loaded bolts were very rusty and one of them snapped off. Just the little round nub is sticking out now and remainder of the bolt is still stuck in the flange on the midpipe. Any ideas on how to get that thing out? The nuts on the other are side are welded to the flange and don't move. At first I thought I could cut it off and get new bolts but nothing is ever easy it seems.
#3
Registered
Thread Starter
Join Date: Nov 2003
Location: andover, ma
Posts: 74
Likes: 0
Received 0 Likes
on
0 Posts
I had already soaked it good with the pb blaster. Before it broke I was trying to get it off with my air impact gun and it wouldn't budge. So then I ran the car to get the exhaust real hot and went at it with the impact again, and it broke. So I feel like if my impact couldn't get that thing out with a nut attached, there is no way I am going to turn it with vice grips or channel locks. I guess I'll start the car again to get it hot and give a shot though.
#4
Rx-8 the protege
iTrader: (1)
Join Date: May 2009
Location: Bronx ''NY"
Posts: 460
Likes: 0
Received 0 Likes
on
0 Posts
These things can get really tight if u go to autozone they sell the same screwed that fit the exhaust and cat!! Ur best bet MIGHT be to cut the screw and replace them with the new ones!
#7
Registered
Thread Starter
Join Date: Nov 2003
Location: andover, ma
Posts: 74
Likes: 0
Received 0 Likes
on
0 Posts
I don't think I can without damaging the threads in the nuts that are welded to the flange. I am about to throw in the towel and bring it to a shop. My 92 volvo 240 is a dream to work on compared to this rust bucket rx-8.
#9
the nuts aren't welded on that great so you can just pop them off and use regular nuts. The new bolt kit will most likely come with them anyway. I had to when I reinstalled my cat. The stock bolts stripped as soon as they got tight so I had to use the bolts from my mid pipe.
#10
He's as bad as Can
That is a 5/16 drill bit in the photo and it doesn't touch the threads. The spring bolt is an M10, so anything a little smaller will be ok.
#11
Registered
Thread Starter
Join Date: Nov 2003
Location: andover, ma
Posts: 74
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for the great responses. I think I would have a hard time keeping a drill straight enough. I was just thinking the same thing that LMMJ suggested, that maybe I could break the welds on the attached nut on the back and just use a new one. Then I could dremel off that lip on the bolt and be done with it. Can't believe two bolts turned into an all day job. I'm done for today - I need a beer.
#13
Registered
Thread Starter
Join Date: Nov 2003
Location: andover, ma
Posts: 74
Likes: 0
Received 0 Likes
on
0 Posts
I drilled the bolt through, a little off-center, sadly, so there is still 1/3 of the bolt left in it, and then dremeled the lip on the bolt off. I still can't get the welded nut off the back. It's the side with the bracket for the hanger, which doesn't help. I decided to take down the exhaust at the cat so I can work on it in the open. So now I am having fun trying to get the 3 nuts off the cat bolts. They are tight the whole length of the thread. Got one off so far. Now I remember why I usually avoid DIY exhaust.
I am only trying to replace the catback with another stocker too. Original broke right off at the muffler and the inlet to the muffler was rusted through too. I have had so many corrosion problems with this car. Headlight sensors, oil cooler lines (left me stranded) and now exhaust. Oh, and my license plate is held on with zip ties in the back...those bolts and nuts rusted out too.
I am only trying to replace the catback with another stocker too. Original broke right off at the muffler and the inlet to the muffler was rusted through too. I have had so many corrosion problems with this car. Headlight sensors, oil cooler lines (left me stranded) and now exhaust. Oh, and my license plate is held on with zip ties in the back...those bolts and nuts rusted out too.
#15
Driving my unreliable rx8
well it's a little late, but the best way to deal with a broken bolt(if possiable) is to take a nut. hold it in place and weld the middle of the nut to the remaning bolt. Then wrench it off. The heat from welding will break it loose and the bolt is then easy to grab with a wrench.
Thread
Thread Starter
Forum
Replies
Last Post