420 radiator

General help and support for your Lindeman through 2010 John Deere crawler
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Weekendcooker
40C crawler
40C crawler
Posts: 23
Joined: Mon Apr 06, 2020 1:04 pm

420 radiator

Post by Weekendcooker » Mon Sep 07, 2020 9:10 am

hi guys , i have my radiator out of my crawler , im wondering if there is a product or just soap and water i can use to clean it out or wait til i get it back on the tractor and just do a full flush on it , it has no thermostat ( thermosiphon ) if that matters , thanks all .

original possum
440 crawler
440 crawler
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Location: Shiner, texas

Re: 420 radiator

Post by original possum » Mon Sep 07, 2020 7:16 pm

According to Ron O'Neill, the Tractor Doctor, in the August issue of Green Magazine, you can use muriatic acid in radiators and even in engines using thermo-siphon cooling.
Early 40C w/Yakima toolbar and homebuilt ripper: 350 w/6-way

gus
2010 crawler
2010 crawler
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Re: 420 radiator

Post by gus » Mon Sep 07, 2020 10:09 pm

I thought all 420s had water pumps and thermostats??

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Lavoy
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Re: 420 radiator

Post by Lavoy » Tue Sep 08, 2020 8:32 am

They do, we are thinking his crawler has had a 40 engine installed.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

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gregjo1948
350 crawler
350 crawler
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Location: Newark Valley,NY,USA

Re: 420 radiator

Post by gregjo1948 » Wed Sep 09, 2020 2:23 am

I take my nasty radiators to a radiator repair shop. They'll soak and flush or replace the core.
JD 350B diesel 6way blade, Case 580B Loader/backhoe, Farmall 504 high crop w/ flail boom mower, International 404 , International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller, Allis Chalmers D17, 1620 Ford

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Paul Buhler
350 crawler
350 crawler
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Joined: Wed May 21, 2008 6:25 pm
Location: Killington, VT

Re: 420 radiator

Post by Paul Buhler » Thu Sep 10, 2020 3:13 pm

I’ll second Greg. It’s a pain to deal with a poorly working or leaking radiator. Getting one repaired and pressure tested means that you’ll have one less worry. If you reinstall yours, boil it with acid, and a leak develops, you’ll be back at square one. Good luck with what ever you decide.
Paul Buhler
Killington, VT
420c 5 roll with 62 blade, FOPS, and Gearmatic 8a winch

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