Antique Engines and Old Iron
[Home] - [HELP] - [Forums] - [Articles] - [Photo Gallery] - [Groups] - [Chat] - [Classified Ads] - [Subscribe] - [Links] - [Books] - [Sponsors] - [eBay Tools]

Go Back   SmokStak > SmokStak® Antique Engine Community > Antique Gas Engine Discussion
Forgot Password? Join Us!


Antique Gas Engine Discussion Meet collectors of hit and miss engines, ask questions about collecting, restoring and showing antique flywheel engines.

Antique Gas Engine Discussion

Old radiator cleaning solutions

this thread has 6 replies and has been viewed 30946 times

Thread Tools Display Modes
Old 05-26-2009, 09:21:19 PM
Mike F Mike F is offline
Email Not Working
Join Date: Jun 2005
Location: Sutherlin, Virginia USA
Posts: 172
Thanks: 19
Thanked 28 Times in 11 Posts
Default Old radiator cleaning solutions

old tractor radiator is overheating.
what is the best flush solution to clean rust, scale and other junk

i heard vinigar will desolve calcium deposits

any ideas?? must be somthing better than off the shelf products.

Reply With Quote
Sponsored Links
Old 05-26-2009, 09:40:12 PM
Motormowers Motormowers is offline
Join Date: Feb 2005
Location: Hamden , Connecticut, USA
Posts: 1,973
Thanks: 978
Thanked 902 Times in 477 Posts
Default Re: OT:?? old radiator cleaning solutions

Believe it or not I have a friend who adds Lestoil to the coolant to clean his radiators and he swears by it. Says its real safe on them also. He gets the system hot after adding it then drains and flushes with water then replaces the coolant.
Reply With Quote
Old 05-26-2009, 11:02:10 PM
Andrew Mackey Andrew Mackey is offline
Join Date: Nov 2004
Location: Rockaway, New Jersey USA
Posts: 10,555
Thanks: 1,338
Thanked 4,465 Times in 2,901 Posts
Exclamation Re: OT:?? old radiator cleaning solutions

Old cooling system material: Flush system with water and drain. Add 3 or 4 -2 Litre bottles of COCA COLA. Fill balance with water and run for 4 Hrs. Drain and flush with water. Fill system with water, and run 15 minutes, then drain. Fill with coolant, and you should be good! The oxalic acid and sugar in the coke will clean the radiator, without doing damage to the core.
If you have heavy calcium deposits, vinegar - full strength all the way will probably clean it out BUT: you must neutralize the acidic solution after using it. Drain the radiator, and flush with water. Drain again and fill the system fully with vinegar. Run until hot, and then vary speed from idle to full speed for 2 hours. Let cool 1/2 hour. Restart and run speed up and down to thoroughly agitate solution. Immediately drain solution, and flush system with water. Fill system with water, run speed up and down for several minutes and drain. Mix 1 pound Baking Soda in 2 gallons of water. Fill radiator and cooling system, and run for 15 minutes. Drain system and flush with water. Fill with water, and run another 5 minutes. Drain and refill with coolant. I would suggest adding a water pump lubricant for the first coolant filling, as the vinegar probably will wash off any lubrication on the shaft. Failure to neutralize the vinegar may lead to heavy rusting of all cast iron parts, and possible galvanic (battery) action between the brass and iron parts of the cooling system. Once neutralized, after all this, you should be good to go. If the system continues to over heat, check the thermostat if the machine has one. If not, then the radiator core probably has to be 'rodded', a process where the top of the tank is removed, and the individual tubes are reamed out with a small rod. If this is a honeycomb core, then the radiator will probably have to be dipped. This may lead to leaks in the core. Unfortunately, honeycomb cores are difficult to clean effectively, due to their construction.
Reply With Quote
Old 05-27-2009, 01:17:56 AM
Delco 32 Volt Delco 32 Volt is offline
Join Date: Nov 2004
Location: Evansville, Indiana
Posts: 186
Thanks: 2,769
Thanked 70 Times in 58 Posts
Lightbulb Re: OT:?? old radiator cleaning solutions

Just a note,many in line flathead engines have a water distrubation tube behind water pump that directs coolent toward valve seats. The small holes in tube become blocked and no matter what you do, engine runs hot. if you're lucky the tube will pull out and you can clean tube,if not replacement is only solution.Steve
Reply With Quote
Old 05-27-2009, 08:03:03 AM
C-Wade7 C-Wade7 is offline
Join Date: Aug 2008
Location: Whitesboro, Texas USA
Posts: 708
Thanks: 292
Thanked 439 Times in 249 Posts
Default Re: Old radiator cleaning solutions

Just baking soda and clean water works well. Drain the system and fill with water, add a box of Arm and Hammer and run awhile , has worked good for me.
Reply With Quote
Old 05-27-2009, 07:34:32 PM
BobM BobM is offline
Join Date: Nov 2006
Location: Reno, Nevada USA
Posts: 733
Thanks: 2
Thanked 113 Times in 98 Posts
Default Re: Old radiator cleaning solutions

have yet to try coke but onthing i done is take dishwasher detergent and water yes you get foam but its cleand well
get it hot let it sit get hot and drain
Reply With Quote
Old 05-27-2009, 07:41:16 PM
wegotallama wegotallama is offline
Join Date: Jun 2008
Location: New Tripoli, Pa USA
Posts: 690
Thanks: 359
Thanked 354 Times in 159 Posts
Default Re: Old radiator cleaning solutions

Be aware that Coke and vinegar are acids. They work well to remove calcium(lime) buildup, but will react with metal. Don't make a concentrated solution.....more is NOT better, don't keep in for long periods of time and flush the system well.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
IHC LB with radiator JunkmanIH660 Antique Gas Engine Discussion 6 01-07-2014 12:16:29 PM
Posting solutions to your engine questions Joe Morris Antique Gas Engine Discussion 5 07-01-2008 02:28:48 AM
Creative solutions Casemaker Steam Stationary Engines, Traction Engines, Steam Boats 3 12-11-2006 05:09:35 PM
Real Boiler solutions KG1584 Steam Stationary Engines, Traction Engines, Steam Boats 15 09-25-2006 01:50:10 PM
NAA Radiator midpw Antique Farm Tractors 1 03-07-2006 11:07:21 AM

Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 03:27:50 PM.

Smokstak and Enginads site search!

All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark - A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2016 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277