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captaindana 
Orange Level
Joined: 14 Sep 2009
Location: Fort Plain, NY
Points: 2580
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 Topic: 7040 radiator leak
Posted: 26 Jul 2023 at 10:44am |
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Should I use a stop leak or just keep adding until discbine season is over? In 5 hours it will leak a quart. I’ve certainly used it before in the 301s to get through a season. I’m just wondering if it will hurt anything thank you all. Prolly 20 more hours of mowing this season. Dana
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Blue Skies and Tail Winds
Dana
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DrAllis
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Joined: 12 Sep 2009
Points: 22180
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Posted: 26 Jul 2023 at 10:52am |
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Run with the radiator cap loose and see if the leak slows down.
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captaindana
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Joined: 14 Sep 2009
Location: Fort Plain, NY
Points: 2580
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Posted: 26 Jul 2023 at 11:28am |
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Ok will do thanks!
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Blue Skies and Tail Winds
Dana
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Ky.Allis
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Joined: 31 Jan 2010
Location: Kentucky
Points: 1034
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Posted: 26 Jul 2023 at 4:23pm |
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Same thing happened on my 200 and I used "Bars leak" and pretty much stopped the leak so I could finish feeding cattle for the winter. Removed radiator for repair and decided to replace the 3 short hoses on the side of engine for the oil cooler while apart. Every single passage in the oil cooler was 100% blocked/clogged with that crap. Will never ever use any "stop leak" again.
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victoryallis
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Joined: 15 Apr 2010
Location: Ludington mi
Points: 2878
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Posted: 27 Jul 2023 at 4:38am |
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Tried pepper in my 8030 it worked fine.
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8030 and 8050MFWD, 7580, 3 6080's, 160, 7060, 175, heirloom D17, Deere 8760
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DrAllis
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Posted: 27 Jul 2023 at 5:56am |
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The engine oil cooler on the 200 is the honeycomb style (small diameter long tubes) as are the eng oil cooler and intercooler cores on 7000 series. Stop leak is just a bad idea, as things may seem just fine, but small passages get plugged reducing the effectiveness of any cooler core.
Edited by DrAllis - 27 Jul 2023 at 6:39am
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Ed (Ont)
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Joined: 08 Nov 2009
Location: New Lowell, Ont
Points: 1512
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Posted: 27 Jul 2023 at 6:17am |
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Stopleak and all that stuff is no good. The only product that I have seen that works is a product called irontite. It works and will not clog anything up. I have used it myself and we also used it in the diesel shop(Int'l dealership) that I worked in for years sold and used it.
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Gregor
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Joined: 11 Sep 2009
Location: Prague, Ne
Points: 305
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Posted: 27 Jul 2023 at 12:36pm |
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I have used a stop leak product called Dike by Conklin. It has worked well for me and never had any issues from putting that in the system. My local NAPA store carries it. Not supposed to plug up anything.
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Ed (Ont)
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Joined: 08 Nov 2009
Location: New Lowell, Ont
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Posted: 27 Jul 2023 at 8:17pm |
You guys think you can fix anything with a dike!!  Just kidding Gregor. I have never seen it over here tho. But will research it and see if available. Thanks.
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Ed (Ont)
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Joined: 08 Nov 2009
Location: New Lowell, Ont
Points: 1512
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Posted: 27 Jul 2023 at 9:17pm |
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I did some checking and it is available at Walmart. But out of stock now.
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MACK
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Joined: 17 Nov 2009
Points: 7664
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Posted: 27 Jul 2023 at 9:19pm |
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If these products don't stop small passages, how does it know where to stop a unwanted leak? MACK
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DSeries4
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Joined: 12 Sep 2009
Location: Ontario, Canada
Points: 7540
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Posted: 28 Jul 2023 at 9:23pm |
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Run the tractor with the cap loose until your field work is done. Then take the rad off and get it fixed. Recommend getting it boiled out as well.
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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Tbone95
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Joined: 31 Aug 2012
Location: Michigan
Points: 12255
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Posted: 29 Jul 2023 at 9:11am |
 MACK wrote:
If these products don't stop small passages, how does it know where to stop an unwanted leak? MACK |
Air? I don’t know, obviously there’s a limit to the size it will block, and a limit on the small side of passages in a system where it then shouldn’t be used. Few years back I had a recore done on my 7045, my rad was junk. After ~4 or 5 months I had a leak somewhere. Probably a solder joint but it was harvest season and I was limited in time and limited in funds not to mention more than a little ticked that after all the time and effort and money I put into a recore that it was leaking! I put Bars Leaks in it as at least a stop gap. Well, the leak went away, never came back, tractor runs cool and so does the oil. Heard from a very reliable knowledgeable source that every car made gets Bars Leaks put in at the factory. At least at one time. Interesting topic. As usual people’s opinions vary!
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GM Guy
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Joined: 31 Jul 2012
Location: NW KS / S.C. ID
Points: 1985
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Posted: 02 Aug 2023 at 11:34pm |
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That is a very slow leak, I definitely wouldnt compromise the oil cooler chasing that small of a leak. cap loose, top off twice a day, sounds fine to me.
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Gleaner: the properly engineered and built combine.
If you need parts for your Gleaner, we are parting out A's through L2's, so we may be able to help.
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