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Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: Emcemv on August 31, 2014, 02:59:43 PM

Title: Bleed cooling system?
Post by: Emcemv on August 31, 2014, 02:59:43 PM
I've recently changed all my coolant hoses......I just filled everything back up and started her up and all seems good, do I need to bleed the air from anywhere?  I was worried about the air compressor?  I had the front heat valves shut off and I know about the bleeder on the heater core.
Title: Re: Bleed cooling system?
Post by: luvrbus on August 31, 2014, 03:07:56 PM
Air only traps at the highest point in a system if it does the compressor will be fine
Title: Re: Bleed cooling system?
Post by: bevans6 on August 31, 2014, 05:27:56 PM
There may be a cross-over tube between the two thermostat housings with a bleed valve, that will bleed the engine.  I do that one when I am filling the engine with coolant, not while it's hot.  There is a bleed valve on the drivers heater core that may need to be bled.  Other than that you should be good to go.

Brian
Title: Re: Bleed cooling system?
Post by: lostagain on August 31, 2014, 07:02:04 PM
On the 6V92 I have in my 5C, there is a bleed valve at the rear of the engine at the back of the blower that is hard to reach but you need to do.

JC


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Title: Re: Bleed cooling system?
Post by: TomC on September 01, 2014, 09:09:38 AM
My expansion tank is the highest point in the cooling system (as it should be). I have a small bleed line from each thermostat going to the expansion tank. That automatically takes care of bleeding. Good Luck, TomC
Title: Re: Bleed cooling system?
Post by: luvrbus on September 01, 2014, 09:16:54 AM
His MCI should have the same hose going to the tank all Eagles do
Title: Re: Bleed cooling system?
Post by: Emcemv on September 01, 2014, 10:11:56 AM
Tom/Clifford

Yes, mine has the hoses from the thermostat housings to the expansion tank so it sounds like I'm all set.  I do not have a bleeder on the crossover tube between the thermostats though.
Thanks for the answers!
Title: Re: Bleed cooling system?
Post by: luvrbus on September 01, 2014, 11:14:41 AM
Don't worry about the bleeder on a cross pipe very,very few 8V92 ever had one as very seldom they never used the full blocking thermostats