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December 16, 2017, 08:31:34 PM *
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Author Topic: Coolant testing procedure help  (Read 1703 times)
Scott & Heather
Scott & Heather's buses: MCI-9 & MCI-102
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« 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
Click link for 900 photos of our 1st bus conversion:
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eagle19952
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« 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...
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Donald PH
1978 Model 05 Eagle w/Torsilastic Suspension,8V71 NA, DDAllison on 24.5's 12kw Kubota.
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luvrbus
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« 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 » Logged

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Scott & Heather
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« 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
buswarrior
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« 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!
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Frozen North, Greater Toronto Area
Scott & Heather
Scott & Heather's buses: MCI-9 & MCI-102
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« 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
chessie4905
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« 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 » Logged

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Scott & Heather
Scott & Heather's buses: MCI-9 & MCI-102
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« 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
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