Author Topic: Coolant testing procedure help  (Read 2832 times)

Offline Scott & Heather

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Re: Coolant testing procedure help
« Reply #30 on: November 02, 2017, 11:02:16 AM »
Arg. Still running hot.
Going to have to pull the radiators and inspect and if they are clean, water pump is next.


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Scott & Heather
1984 MCI 9 6V92-turbo with 9 inch roof raise (SOLD)
1992 MCI 102C3 8v92-turbo with 8 inch roof raise CURRENT HOME
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Offline eagle19952

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Re: Coolant testing procedure help
« Reply #31 on: November 02, 2017, 11:39:28 AM »
Arg. Still running hot.
Going to have to pull the radiators and inspect and if they are clean, water pump is next.


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might as well tank the radiators...
Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 N, DD, Allison on 24.5's 12kw Kubota.

Offline luvrbus

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Re: Coolant testing procedure help
« Reply #32 on: November 02, 2017, 11:57:17 AM »
    What is the change interval for the antifreeze change, please?   Thanks,  BH


All depends on the brand and how it is monitored anywhere from 1 to 7 years DD wants it changed every 2 years regardless,Cummins wants the antifreeze tested once a year and replace when the the test is - which is about every 2 to 3 years     
« Last Edit: November 02, 2017, 12:05:50 PM by luvrbus »
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Offline Scott & Heather

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Re: Coolant testing procedure help
« Reply #33 on: November 02, 2017, 03:15:48 PM »
Ok, so if indeed I need to clean out these rads, what's the best method? Pull them, fill will vinegar, let sit for a day, then rinse?


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Scott & Heather
1984 MCI 9 6V92-turbo with 9 inch roof raise (SOLD)
1992 MCI 102C3 8v92-turbo with 8 inch roof raise CURRENT HOME
Click link for 900 photos of our 1st bus conversion:
https://goo.gl/photos/GVtNRniG2RBXPuXW9

Online buswarrior

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Re: Coolant testing procedure help
« Reply #34 on: November 02, 2017, 04:39:38 PM »
Detroit used to have a 2 part cleaner.

You used the acid mixture first, then the neutralizer to rinse, you drain all of it into a drum, and at the end it is all neutralized mixed together.

Each powder comes in a gallon plastic jug. Use hot water to mix the powder, dissolves better.

And, HUGE PPE warning! Mono goggles please, you don't want this stuff splashed into your eyes!!!

happy coaching!
buswarrior
Frozen North, Greater Toronto Area

Offline Scott & Heather

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Re: Coolant testing procedure help
« Reply #35 on: November 02, 2017, 04:43:38 PM »
Thanks! Now to find this stuff...


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Scott & Heather
1984 MCI 9 6V92-turbo with 9 inch roof raise (SOLD)
1992 MCI 102C3 8v92-turbo with 8 inch roof raise CURRENT HOME
Click link for 900 photos of our 1st bus conversion:
https://goo.gl/photos/GVtNRniG2RBXPuXW9

Offline chessie4905

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Re: Coolant testing procedure help
« Reply #36 on: November 02, 2017, 05:53:38 PM »
Be careful if you have marginal radiators.

Here's one:    https://www.cumminsfiltration.com/south-pacific/cooling-system-cleaners
« Last Edit: November 02, 2017, 05:57:52 PM by chessie4905 »
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Offline Scott & Heather

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Coolant testing procedure help
« Reply #37 on: November 02, 2017, 07:31:39 PM »
Thanks for that link! I'll be getting some of this stuff. The radiators are in really really good shape from the outside. I had bad radiators on my old MCI 9 and replaced them with new ones so I know the visual differences. The inside may be a different story.


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Scott & Heather
1984 MCI 9 6V92-turbo with 9 inch roof raise (SOLD)
1992 MCI 102C3 8v92-turbo with 8 inch roof raise CURRENT HOME
Click link for 900 photos of our 1st bus conversion:
https://goo.gl/photos/GVtNRniG2RBXPuXW9