Can JB Weld fix this?

[Elkins45]

This is the muffler heat shield on my wife’s 09 RAV4. It started rattling recently and is hanging on by one bolt. A replacement is >$60 at the nearest Toyota dealer, assuming those bolts will even come out without shearing off. What are the chances I could get it to stick by sanding the contact areas, smearing it with JB Weld and wedging it in place until it hardens?

Or, alternatively, just removing it entirely? I’m hesitant to do that because I assume that if it weren’t needed they wouldn’t have installed it.

Or maybe just bolt in a cookie sheet LOL?

 

[hrv]

Its worth a try....

 

[BHopkins]

Is it worth trying to get the nut off with some penetrating oil and perhaps a torch? Then, if you can get the nut off, you can hole the heat shield in place with a fender washer.

The JB Weld may be a second choice.

 

[bullwinkle]

Couple of stainless self-drilling screws, covered with a little rustproofing spray?

 

[John105]

Is it rattling? If me, I’d rather have the shield there and not secured, as long as it’s not making noise.

 

[supton]

Nothing to lose trying to remove the bolt. Maybe heat it first. Best case is it comes out, then one fender washer and you’re done.

 

[JTK]

I've dealt with that same situation a few times. If the fastener will come out of the body, use a big fender washer on it to take up the space of the hole in the shield. If that's a no go, self tapping screws with washers will work, but at that point on my own vehicles, I just remove the shield.

 

[Trav]

It looks like the part that holds the heat shield to the bolt fell off. It will look like these, you could try these or go to the dealer. Do not try to remove that bolt, chances are it will break. It does not thread on like a nut it just pushes on and the teeth hold it so don't worry that the threads are rusty.

Amazon.com

 

[DemoFly]

Trav beat me to it. Figure out the threads on that stud and buy a new nut and some fender washers.

 

[Elkins45]

Sometimes I overthink things. The nuts came off with a little PB Blaster and I found some suitable washers in the parts drawer.

 

[eljefino]

There you go. If you have some scrap tin, even a lid off a can of soup, drill a hole in it and use it as the biggest washer of them all.

 

[anderson]

.

 

[SammyChevelleTypeS3]

Sometimes I overthink things. The nuts came off with a little PB Blaster and I found some suitable washers in the parts drawer.

View attachment 219952

Good for you. Seems like a bit of corrosion under there? You must live in "the winter time salt belt?"

 

[BHopkins]

Sometimes I overthink things. The nuts came off with a little PB Blaster and I found some suitable washers in the parts drawer.

View attachment 219952

I can totally relate. Nice to see that it was an easy fix.

 

[supton]

Good for you. Seems like a bit of corrosion under there? You must live in "the winter time salt belt?"

Dunno, looked pretty rust free… compared to my cars.

 

[Vern_in_IL]

Same thing happened to my Nissan, and same fix! weird.

 

[wings&wheels]

I did the same on a friend's daughters' Wrangler a few years ago except I also used a wider 'washer' of aluminum sheet under the steel washers to spread out the load a bit more then gave it all a shot of BoeShield given the differing metals.

 

[PF52]

I've re-attached loose heat shields using pop rivets, but that assumes there is a channel or some other shape that I can drill into for the rivets. I would not recommend drilling into a flat floor pan.