The most common and affordable option. It is great for standard street use but degrades faster under extreme heat.
Secure the packing in place using a few strips of masking tape. The tape will simply burn off harmlessly once the exhaust gets hot. Step 5: Reassemble and Seal
Exhaust packing usually consists of fiberglass, ceramic wool, or specialized synthetic fibers wrapped around a perforated inner core. This material absorbs sound waves and withstands extreme heat. Over time, several factors cause this material to fail: midnight auto parts smoking repack
Repacking a silencer is a straightforward DIY task that requires basic garage tools and a bit of patience. Tools and Materials Needed: New exhaust packing kit (fiberglass mat or pillow) Replacement rivets or bolts Drill and drill bits (if your silencer is riveted) High-temperature silicone sealant Masking tape or painter's tape
Pull the inner core and the old packing out of the canister. If the packing has never been changed, it may be brittle, black, and caked in carbon. Throw this away immediately. Use a wire brush to clean any carbon buildup off the perforated metal center core. Step 4: Wrap the Core with New Packing The most common and affordable option
If your engine is running too rich or pushing oil past the valve seals/piston rings, that oil saturates the muffler packing. Repacking the exhaust becomes necessary to stop the constant, foul-smelling smoke emanating from the saturated fiberglass. Step-by-Step Guide to Repacking Your Exhaust
Slide the newly wrapped core back into the outer canister. Apply a thin bead of high-temperature silicone sealant around the edge of the end cap to ensure an airtight seal and prevent exhaust leaks. Align the holes and secure the cap using new rivets or bolts. Step 6: The "First Burn" (The Smoking Part) The tape will simply burn off harmlessly once
Not all exhaust packing is created equal. The right choice depends entirely on your application:
Performing a "smoking repack"—the process of replacing burnt-out packing material while addressing smoking issues—is a critical maintenance task for any enthusiast. This comprehensive guide covers everything you need to know about getting your exhaust back to midnight-run perfection. Understanding Exhaust Packing Failure
Unburnt fuel or oil can soak into the packing. This not only destroys its sound-absorbing properties but also leads directly to a "smoking" exhaust. The Anatomy of a "Smoking" Repack