Flushing a diesel truck cooling system
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Forum Name: Shops, Barns, Varmints, and Trucks
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Topic: Flushing a diesel truck cooling system
Posted By: DougG
Subject: Flushing a diesel truck cooling system
Date Posted: 11 Oct 2018 at 2:30pm
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Any thing to use except the off the shelf stuff? Have used that stuff before but seems like it didn't help much , Anyone use anything else ?
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Replies:
Posted By: Red Bank
Date Posted: 11 Oct 2018 at 10:07pm
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What kind of truck which engine what year?
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Posted By: DMiller
Date Posted: 12 Oct 2018 at 6:14am
Water is still the best, I do NOT care for chemicals inside a cooling system you may or may not be able to neutralize. Get the chunks and rust out then refill with GOOD full strength coolant and distilled water for a refill and most times the rust does not return so fast.
There are coolant additives available now that were not so prevalent just twenty years ago to aid in controlling deposits and corrosion, well worth it.
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Posted By: truckerfarmer
Date Posted: 12 Oct 2018 at 6:34am
Depends on what you're trying to fish out. Just trying to get the rust out, or did you have an oil cooler go bad and get oil in the system?
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Looking at the past to see the future.
'53 WD, '53 WD45, WD snap coupler field cultivator, #53 plow,'53 HD5B dozer
Duct tape.... Can't fix stupidity. But will muffle the sound of it!
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Posted By: DougG
Date Posted: 12 Oct 2018 at 6:46am
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99 Cummins, no oil or anything like that just rust from the years
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Posted By: Tbone95
Date Posted: 12 Oct 2018 at 6:46am
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What do you mean by "help much"?
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Posted By: Red Bank
Date Posted: 12 Oct 2018 at 11:13am
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Ford has an iron remover flush that I have used with success. It's available at Ford parts counter
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Posted By: Bill_MN
Date Posted: 12 Oct 2018 at 3:40pm
Permatex heavy duty radiator cleaner. Careful though, it is pretty much straight acid and does a VERY thorough job. So thorough that if you have any areas of the radiator or thermostat housing that's getting thin or held together by rust it will start leaking. Turned the original radiator on my WD into swiss cheese, but that was probably for the better if it was that bad. Flush well and add some baking soda to the flush water to neutralize what's left.
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1951 WD #78283, 1918 Case 28x50 Thresher #76738, Case Centennial B 2x16 Plow
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