How To Repair A Hole In Your Muffler

Using a can, some exhaust repair paste and rivets.

A small hole can cause a very big noise.

Our sixteen yr quondam classic Saab 900 blew a small hole in its exhaust, which turned in to a large hole after I poked effectually!

The metal surrounding the holewas surprisingly solid after I scraped away the flaky rusty bits. And then I thought I'd have a get at repairing information technology rather than replacing the whole exhaust section (very expensive).

Get-go I jacked up the automobile and placed an beam stand underneath a strong function of the body. Talking most safe, goggles and gloves are pretty essential to to avoid injury from sharp or flying rusty metal $.25 during this repair.

To get a trivial better access I pushed a pair of rubber supporting mounts off their hangers and let the whole exhaust hang downward a little. You need to make sure this doesn't stress any role of the organisation by placing something underneath information technology to support information technology. I used a small axle stand just some bricks or wooden blocks volition work just equally well.

Gently lowering the exhaust might give you improve access.

Adjacent I used an quondam chisel to scrape away all the rusty flakes of loose metal. Don't panic if this makes the hole bigger, every bit long every bit y'all still have access all effectually the hole. If the hole gets so large that you don't take good access, and then yous either demand to take the whole section off or replace the section.

Scrape with an old chisel at least 25mm or 1″ back to solid metal.

To brand a really good task you lot can run a wire brush over the edges of the hole, the type the fits into an electric drill is perfect. This cleans away the rust back to solid metal.

Wire brush the rust away and get back to good metal. Goggles or glasses are ESSENTIAL!

Adjacent cut a piece of metallic around an inch or 25mm bigger all circular than the pigsty. Y'all tin apply any thin metal. I used some from a thick tin tin, it won't concluding forever only information technology needs to exist thin plenty to easily follow the curve around the hole and pull upwards tight when you lot rivet it to the silencer.

Use a sparse metal patch to repair a hole in an exhaust silencer or muffler.

Side by side is to apply a special exhaust repair paste;effectually the edges of the pigsty which volition set rock difficult and seal any gaps giving you a gas tight seal. You should vesture disposable gloves and try to use a tool such as the one-time chisel or a thin slice of woods and not your fingers. It's very mucilaginous stuff!

Don't become this stuff on your fingers!

Then identify your new metallic slice over the hole and printing it down. Using the right size drill bit for your rivets, drill a hole effectually one/2″ or 13mm in from the border right through the new metallic slice and the metallic below. Pop your rivet into the rivet gun and printing the rivet through the hole. Pushing down as hard every bit you can squeeze the rivet gun to ready the rivet. I riveted this patch along the bottom first to hold the metal in identify, and then I went up each side, finishing off at the tiptop. Rivet each hole every bit you go to avoid misalignments.

All finished and gas tight. Non pretty to look at only information technology'll last this silencer out.

In one case all the holes take a rivet, polish out the exhaust repair paste that has squeezed out. Now, it'southward not very pretty, I tin promise you lot that, but it does the task!

Utilize a heat source to start the drying process.

I did this repair during a cold snap and I worried that the silencer wouldn't get warm plenty to fix the exhaust repair compound, and so I placed an old lamp close to the repair for a couple of hours to speed up the process. The repair paste will finish setting on the road.

Repairing rusty exhaust pipes or silencers is always going to exist a nasty chore, simply when they fail at an inconvenient time, you have no choice but to bear out a repair like this. If yous have reasonable admission to the expanse that's holed, then you have a fairly practiced take a chance of being able to repair it.

Skilful luck with your own repairs!
Stay well

Past Ian Anderson

All circular handy bloke, humanitarian, and mad scribbler.

Moved around a bit, from one side of the planet to the other, just now settled close to the embankment in Norway.

Source: https://handycrowd.com/fix-hole-in-exhaust-silencer-or-muffler/

Share this post