Generac QUIETPACT 75 — Spark Arrestor Muffler Maintenance
Maintenance · Exhaust muffler / spark arrestor
For the Generac QUIETPACT 75, from the Generac owner's manual.
Applies to: Generac QuietPact 75, ISM 1.0L Diesel engine
Before you start
- Failure to provide and maintain a spark arrestor may be in violation of the law
- Be sure to reinstall the hex pipe cap tightly
Procedure
- Place the unit above a noncombustible surface and ensure the exhaust piping is cool.
- Remove the two screws holding the spark arrestor access plate to the rear floor pan.
- Remove the spark arrestor access plate and gasket.
- Remove the hex pipe cap from the end of the spark arrestor cleanout pipe.
- Thread on a 3/8-inch NPT pipe coupling and pipe nipple to extend the cleanout pipe at least 10 inches (250 mm) below the rear floor pan.
- Start and run the engine for approximately 15 minutes.
- Shut down the engine and allow the piping to cool.
- Remove the 3/8-inch NPT coupling and piping.
- Apply a graphite-base anti-seize compound to the cleanout pipe threads.
- Reinstall the hex pipe cap, access plate, gasket, and two screws.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Run engine approximately 15 minutes
Full service-parts list: Generac QuietPact 75 →
Source: Generac owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.