re..jd440ic marvel slabel carb settings

General help and support for your Lindeman through 2010 John Deere crawler
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dtoots1
350 crawler
350 crawler
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Joined: Fri Nov 30, 2012 8:54 am
Location: akron, ohio

re..jd440ic marvel slabel carb settings

Post by dtoots1 » Sun Mar 31, 2019 1:11 pm

My jd440ic is running a bit rich....have carbon out exhaust...dang book does not show how or which to turn in etc or how many turns...do i adjust the idle screw...or load screw??? how many turns out??? both my 440 dozer and 40s wheeled running rich...seems to me one of them or both has a little crank handle adjusting screw, whatever one it was i adjusted about a quarter turn and booger spit and sputtered till i turned it back, thought that would make it leaner by turning in?? l anyhow need to adjust em both..

My hearing is shot and no one around here knows how to adjust carbs..., makes fine adjustment a bit of trouble

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Paul Buhler
350 crawler
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Re: re..jd440ic marvel slabel carb settings

Post by Paul Buhler » Mon Apr 01, 2019 5:54 pm

here's a manual. I hope it helps. The adjustment procedures and jet functions are explained. Paul
http://ntractorclub.com/howtos/pdfs/Ser ... retors.pdf
Paul Buhler
Killington, VT
420c 5 roll with 62 blade, FOPS, and Gearmatic 8a winch

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notmeu
1010 crawler
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Re: re..jd440ic marvel slabel carb settings

Post by notmeu » Mon Apr 01, 2019 7:13 pm

Good find Paul! I’ve been running a little rich myself... time to clean out those jets!
1956 JD420, gearmatic 8a winch, custom 6 way blade and FOPS.

dtoots1
350 crawler
350 crawler
Posts: 1162
Joined: Fri Nov 30, 2012 8:54 am
Location: akron, ohio

Re: re..jd440ic marvel slabel carb settings

Post by dtoots1 » Fri Apr 05, 2019 1:00 pm

i added 4 ounce sea foam motor treatment to my full tank of gas...i don't see the black smoke NOW, will see next time i run it. have not messed with jets.


by the way...here it is May 7th and the dozer is still running fine tho i suspect will need to add sea foam again done used it all up...pushing her a bit hard pushing dirt .....pulled large tree stump , pushed 30 tons of asphalt grindings and still going...

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