Clean flame arrestor

[summerwind]

For a merc 5.7 liter, 2bbl, do you replace on regular basis? Is there a way to clear? This one is clogged, dirty oily etc.

 

[Silverton_34]

Brake Cleaner works like a champ. Make sure they are off the engines.

 

[Bob J]

Gasoline is cheaper & works well.

 

[GrecRI]

I put mine in a solvent vapor degreaser because I have one available at work.

 

[obeejr]

I spray mine with degreaser, hose off, and let dry.

 

[b_arrington]

Keep it simple. Hot water and some dish soap. Put in bucket. Soak. Brush with soapy water if needed. Rinse.

If that doesn't work move up to the dishwasher or more agressive cleaning agents. Why use volatile and flamable chemicals when regular soap will probably work?

 

[Riverratt]

Carb cleaner. Let dry.

 

[Monterey10]

I have a problem of excessive blow by, which oiled the flame arrestor. I had a problems where rust on the pulleys was eating the fan belts (old style v belts) and throwing a lot of black rubber dust everywhere, including on the well oiled flame arrestor. They would plug up after 10 or so hours.

I've cleaned them with carb cleaner and blew them out with an air hose.