HueyPilotVN
Well-known member
I found a really cool tool.
I have been changing all the fluids and filters on the coach since I got home from Quartzsite.
I changed the main diesel engine oil and filter, the transmission fluid with Transyn and filters, I still have to change the antifreeze over from the older SCA type to the newer ELC type that does not need the additives in the coach cooling system as well as changing the Cummins Onan generator antifreeze.
In watching UTube Videos in preparation for doing the changes I discovered a new tool that makes it
easier and quicker to change the fluid in the cooling system. Some of you may already know about this
system, but I did not.
This tool creates a vacuum in the cooling system to get all the trapped air out of the system and then
quickly lets you refill into the vacuum and then does not require you to keep adding fluid as the air gets
out of the cooling system.
It works on the same principal as the Venturi vent covers that some of us have on our roof that creates a
vacuum to pull air out of the tanks vents.
I attached a few pictures.
The tool fits in the opening for the radiator cap and turning the top expands the base to fit tightly.
A line from your air compressor connects to a fitting that blows air across an opening creating a vacuum
that pulls any air out of the cooling system and has a gauge that shows how much vacuum is created.
When you hit 25 inches Hg you close the valve. You can actually see the hoses collapse from the vacuum.
You then disconnect the fitting and connect the hose to the filling source, open the valves and the fluid
is sucked into the cooling system.
The adapters fit different size radiator cap openings.
The system costs about $120 and anybody that takes me up on the free RV site is welcome to use it to change their fluid.
Actually I have tools, drain pans, and room to change any fluid you might want to change. The NAPA
down the hill will take the old fluids for recycling.
Not sure what I have to do to get some Framily company, Although, Chet and Laurie are coming the end
of September.
I have been changing all the fluids and filters on the coach since I got home from Quartzsite.
I changed the main diesel engine oil and filter, the transmission fluid with Transyn and filters, I still have to change the antifreeze over from the older SCA type to the newer ELC type that does not need the additives in the coach cooling system as well as changing the Cummins Onan generator antifreeze.
In watching UTube Videos in preparation for doing the changes I discovered a new tool that makes it
easier and quicker to change the fluid in the cooling system. Some of you may already know about this
system, but I did not.
This tool creates a vacuum in the cooling system to get all the trapped air out of the system and then
quickly lets you refill into the vacuum and then does not require you to keep adding fluid as the air gets
out of the cooling system.
It works on the same principal as the Venturi vent covers that some of us have on our roof that creates a
vacuum to pull air out of the tanks vents.
I attached a few pictures.
The tool fits in the opening for the radiator cap and turning the top expands the base to fit tightly.
A line from your air compressor connects to a fitting that blows air across an opening creating a vacuum
that pulls any air out of the cooling system and has a gauge that shows how much vacuum is created.
When you hit 25 inches Hg you close the valve. You can actually see the hoses collapse from the vacuum.
You then disconnect the fitting and connect the hose to the filling source, open the valves and the fluid
is sucked into the cooling system.
The adapters fit different size radiator cap openings.
The system costs about $120 and anybody that takes me up on the free RV site is welcome to use it to change their fluid.
Actually I have tools, drain pans, and room to change any fluid you might want to change. The NAPA
down the hill will take the old fluids for recycling.
Not sure what I have to do to get some Framily company, Although, Chet and Laurie are coming the end
of September.