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Old 04-26-2020, 05:10 PM   #1
Join Date: Feb 2020
Location: Central Florida
Posts: 19
Year: 2007
Coachwork: Thomas
Chassis: FS-65
Engine: Mercedes-Benz MBE 900
Can we save the Coolant Reservoir Tank?!?!

We've realized this bad boy is totally drained (some of which we did when shortening the hose) we also noticed this wasn't plugged under the reservoir tank (see picture that looks somewhat trippy) is there something we should be capping this with? Also, can we save this tank? Do you think it can be brought back to life? Maybe a few coolant flushes (Distilled water and such)
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AlexVega360 is offline   Reply With Quote
Old 04-26-2020, 05:25 PM   #2
Bus Crazy
banman's Avatar
Join Date: Aug 2019
Location: Ohio
Posts: 1,188
Year: 2002
Coachwork: Thomas
Chassis: Freightliner FS-65
Engine: 7.2L Cat 3126 turbo diesel
Rated Cap: 71 passenger 30,000 gvwr
I'm guesssing since yours is the first fs65 I've seen here with the MB engine.
All the other fs65's I've looked at/seen pix of have a metal coolant reservoir.

Still, metal or plastic -- it's a pressurized reservoir so that means if the res. gets over-pressurized the fluid has to go somewhere -- generally, it spews out on the ground via that clear tube you found with no cap on the end...

If the plastic isn't brittle, you can remove the tank and wash it out however you like but I'd avoid any harsh solvents.

The Murder Bus
banman is offline   Reply With Quote
Old 04-26-2020, 05:45 PM   #3
Bus Crazy
Join Date: Sep 2018
Posts: 1,312
Year: 2007
Coachwork: Thomas Built
Chassis: Minotour
Engine: Chevy Express 3500 6.6l
I’d just try water, but if there is significant buildup, and water doesn’t work, maybe distilled vinegar or CLR cleaner?
Danjo is offline   Reply With Quote

coolant reservoir tank

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