Bus quit running

thomasinnv · March 24, 2016, 03:57:07 PM

Sounds like a quick release valve. Nothing to them just a rubber disc inside.

lawful · March 24, 2016, 05:29:02 PM

I do have a picture of it, but it has too many megapixels to post on this site. if you have an email address, I could send it to you.

To describe: It's cylindrical, about an inch in diameter and about 2 1/2 inches tall (excluding what appears to be a 1/2" bolt sticking out of its rounded top), is attached to a square base with four screws, to which three "hard" air lines are attached, one of which goes to the air brake reservoir. It has a tiny hole facing towards the front of the bus, closer to the base - that's where the air is coming out. I can see what appears to be a rubber seal between it and the base.

Does that sound like a pressure relief valve?

John

buswarrior · March 24, 2016, 05:57:31 PM

A picture is worth a thousand words, and even more, when everyone uses different names for the same components.

Choose the free picture re-sizing software of your choice and have a go at shrinking your pic to fit!

It won't be the last time you'll be posting pics on here....

happy coaching!
buswarrior

buswarrior · March 24, 2016, 05:59:22 PM

Whatever it is, it shouldn't leak out of the small hole, those are usually there to vent the back side of the moving internals. The pressure is supposed to stay in the other end...

happy coaching!
buswarrior

jackhanow · March 29, 2016, 07:48:28 PM

Shop vac works great for that. Primed in less time than it takes to plug it in. Can beat 6 horse suction.

jackhanow · March 29, 2016, 08:00:21 PM

Sorry that post was ment for an earlier post on this thread. For some reason the page didn't refresh

HappyinWI · April 28, 2016, 10:27:39 AM

Quote from: eagle19952 on February 24, 2016, 09:03:40 AM
rule #1.... attach static ground cable .... ?

was this a contributing factor ?

The contractors used a Fiberglass drop tube which used to be ok with diesel. Then they cut it 10" too short at each location. This allowed an air gap that the product fell through. The static charge built up in the fiberglass as the product moved through which lead to a spark which ignited the diesel vapors and exploded the tanks.

You can read more about it here http://core-es.com/wp-content/uploads/ese_nov_dec_2010-ConVault.pdf