How dirty does a flame arrestor have to be....?

[Phantom17]

How dirty does a flame arrestor have to be to basically choke an engine at high RPM?

 

[Bondo]

Re: How dirty does a flame arrestor have to be....?

Pretty Dirty........................

 

[Boomyal]

Re: How dirty does a flame arrestor have to be....?

..especially because a flame arrestor is not an air filter and does not accumulate fine dust as a filter would. It would have to have been covered with blow by oil to have anything for the fine particles to cling to.

 

[Don S]

Re: How dirty does a flame arrestor have to be....?

But, there is one thing that clogs them up all the time that everybody seems to miss. At least on the boats I work on. <br />The pulleys get rusty and start grinding the belts away, the owners tighten the loose belt and may replace it after it gets so thin it won't turn anything, wanna guess where all that belt dust goes in a closed engine compartment?<br />All the black dust from the belts just flat plugs up the flame arrestors. Clean and paint the pulleys, new belt, clean flame arrestor, and everything is back to normal........ for a while.

 

[cc lancer]

Re: How dirty does a flame arrestor have to be....?

Buy 2 cans of carburetor cleaner and spray from the inside out till its clean.<br />With the price of gas now you will get your expense back very quickly. Because now your engine is running rich on gas.

 

[TilliamWe]

Re: How dirty does a flame arrestor have to be....?

Again, DonS thanks for the tip, that's not something I would think of.<br />Of course i've never ruined a belt or pulleys. And I occasionally look at my arrestor, and it's clean. But I will be keeping that in mind for the next boat I am helping someone work on!

 

[Phantom17]

Re: How dirty does a flame arrestor have to be....?

Cleaned it out, still rich, on a Rochester 2 jet (120 GM OMC inline) which is the lean screw? I have not rebuilt this carb. I turned the 2 lower ones slightly, but carb coughed when punching the throttle, so I backed to where they were before, (I made mental note of placement). I think this would solve my problem if I knew how to either reduce the gas flow, or increase the air flow. (Sometimes less is more in other words) I'd be happy. Shop wants boat and a month to rebuild carb, when the only thing that changed on the carb was pulling a man made welch plug, and putting in a real one.......HELP. Thanks

 

[Bondo]

Re: How dirty does a flame arrestor have to be....?

I have not rebuilt this carb.

That's the Problem,............<br /><br />Get a Kit,+ Do It........

 

[jlinder]

Re: How dirty does a flame arrestor have to be....?

To clean the spark arrester I have some cleaner that I got for cleaning my air conditioner coils. They sell it at appiance parts stores.<br /><br />You just dilute with water, let arrester soak for a few minutes, then hose off. Works great.

 

[Phantom17]

Re: How dirty does a flame arrestor have to be....?

Bondo, why so big on rebuilding? If it worked fine before the plug> I'm a bit curious to hear why. The plug the guy made went further into the hole than a straight plug. I'm thinking that it limited the choke butterfly from opening all the way. Now it doesn't open all the way, (just shy of) but it bogged down. What else would cause it to bogg down while in the water, but not on land. Runs fine on land. I checked the timing last night, it was a bit off, so I set it right.

 

[ni7irs]

Re: How dirty does a flame arrestor have to be....?

I just pulled mine and it wqas covered with rubber. The belt was just replaced and I had the alternator checked to make sure it wasnt worn out and dragging on the belt. When I looked inside the throttle body, it was covered with the same black gunk.

Should I be worried? Is there a way to stop this from getting into the engine?

 

[Bondo]

Re: How dirty does a flame arrestor have to be....?

June 3rd, 2005, 03:21 AM

Ayuh,... The archives are for Learnin' not posting too....

Start a New thread please...

 

[ENSIGN]

Re: How dirty does a flame arrestor have to be....?

My friend takes his dog crabbing with him and had a problem with a quadrajet running rich.I was surprised to see that much fur in a arrestor!