John Deere Mc Crawler Manual Download

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Ag, Turf, & Engine Operator Manuals & Publications. Discover how to find, view, and purchase technical and service manuals and parts catalogs for your John Deere equipment. Find or View Operator Manuals Online; Purchase Manuals and Publications Online; Find a Parts Catalog; View Operator Manual Engine Maintenance Information. Jul 26, 2015 So i just bought a 1949 John Deere MC crawler for 00. It runs really good and works as it should. There are issues but nothing that seems major.

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littleschnebs
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Joined: 22 Nov 2007
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Posted: Sat Jan 04, 2014 4:10 pm Post subject: MC crawler won't start

Hello, I bought a John Deere MC crawler that was stuck. The ole boy that owned it was using it until he had some health problems. My uncle and I got it unstuck, cleaned up, and put back together. I put new spark plugs in it and it seems to have very nice spark. It will not start though. Although the distributer hasn't been touched I decided to start with timing. According to this website the spark should be on TDC. So I checked the rotor and it lines up with the plug wire at TDC. Am I understanding this correctly?? I decided to then take the carb apart since we all know what old gas does to carbs. It seemed clean but I took a can of carb cleaner and straw and cleaned all the ports. After this is done I opened the idle needle 3/4 to 1 turn and the load needle to 1.5 to 2 turns. It still will not fire. I gave it a slight sniff of ether (as much as I hate it) and it halfway fired but not even close to making it run. What do you guys think it might be? I thought about taking the carb to a professional but thought I would ask what your thoughts were first. I am learning (20 years old) so any thoughts or suggestions would be greatly appreciated. Thanks!

james neff
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Posted: Sat Jan 04, 2014 4:35 pm Post subject: Re: MC crawler won't start
Does it backfire when you use starting fluid. Are the valves closing all the way? Take a sqirt bottle with gas and while you try to start it spray in to the carb. I have a m john deere I made run without a carb and intake to see if it had any noise when I pulled it out of a fence row

bill mart
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Posted: Sat Jan 04, 2014 4:38 pm Post subject: Re: MC crawler won't start
did you try switching the plug wires around? Bill

james neff
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Posted: Sat Jan 04, 2014 5:07 pm Post subject: Re: MC crawler won't start
Also check to see if you are getting enough gas to the carb

ben70b
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Joined: 13 Jun 2012
Posts: 644
Location: Illinois
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Posted: Sat Jan 04, 2014 5:31 pm Post subject: Re: MC crawler won't start
Maybe it's too dam cold out for it to start, I know it is here

nlastovi
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Joined: 03 Oct 2012
Posts: 290
Location: Central Colorado
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Posted: Sat Jan 04, 2014 5:59 pm Post subject: Re: MC crawler won't start
Pull the plugs. Are they wet or dry? that should direct you towards or away from carburation. Shove in a compression tester and open the throttle all the way and run the starter. What do they measure? Use a timing light to check the actual timing on the #1 cylinder.

jeo46
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Posted: Sat Jan 04, 2014 7:07 pm Post subject: Re: MC crawler won't start

I pull spark plugs, make sure they are clean, drip a little gas in spark both plug holes (with plugs out), put the plugs in as quick as possible, install wires(front wire to front plug I think), turn switch on, and crank. The engine should fire a few times if everything is close to right. Sometimes that all it takes to get them running. Repeat this a couple of times if engine runs and quits. If it won't run after a few tries, it is probably the carb. Carb float may be stuck.

leon
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Joined: 12 Feb 1998
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Posted: Sun Jan 05, 2014 3:25 am Post subject: Re: MC crawler won't start

Right now I forget the details, but there's something about the distributor, using on a 2-cylinder engine what was really designed for a 4-cylinder, that makes it east to have it out of time and not know it. Maybe it's that the distributor can easily be re-inserted into the engine 180 degrees from where it should be. Squirting a little gasoline or ether into the engine to see if you can get it to fire, as others have suggested, is a great help in isolating the problem - along with a compression check. Check for the possibility of excess air leakage paths around the choke shaft and particularly throttle shaft. I suspect the carburetor will need to be disassembled, soaked out in real carb cleaner, blown out with compressed air and all internal passages gone through with the right size of drill bit - hand held, of course. All these steps may need to be done more than once. Then use a carb rebuild kit to get critical parts and gaskets when reassembling. Load & idle jet and float level are important adjustments too, It's a meticulous process but it will sound oh so good then she takes off.

JOHN DEERE 70
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Posted: Sun Jan 05, 2014 5:08 am Post subject: Re: MC crawler won't start
I would do a compression test to verify if you haven't.

Mark-Ia
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Joined: 29 Jan 2011
Posts: 4322
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Posted: Sun Jan 05, 2014 6:11 am Post subject: Re: MC crawler won't start
Use the spray type carb cleaner instead of gasoline in the spark plug holes to test fire.

Hotflashjr
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Joined: 27 Jul 2007
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Posted: Mon Jan 06, 2014 4:23 am Post subject: Re: MC crawler won't start

I would also go over how to set the timing from the manual. Spark on TDC does not sound right to me. I just did this on my MT. You pull the front plug and rotate the engine until you feel pressure/air on your thumb in the plug hole. Remove the small inspection cover on the clutch housing, its on the distributor side. Slowly rotate the engine until you see SPARK on the flywheel in the window. It should not be far from when you feel the pressure. You then set point gap from .18-.22 while holding the cam in the distributor as advanced as possible. Then you can adjust your distributor if you still need to advance or retard the opening and closing of the points. I needed a helper and took me more than one try to get it spot on. The manual has a good step by step process on this.

littleschnebs
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Joined: 22 Nov 2007
Posts: 70
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Posted: Mon Jan 06, 2014 8:23 pm Post subject: Re: MC crawler won't start
Thanks for all the help guys! I loosened up the tabs on the distributor and worked it back and forth till she took off. The engine sounds nice but I need to work with it a little bit. It has a surge to it at lower rpms. Im guessing it may be an adjustment on the rod from the governor to the carb. Any other thoughts?? Thanks again!

vt joe
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Joined: 09 Oct 2007
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Posted: Tue Jan 07, 2014 2:36 pm Post subject: Re: MC crawler won't start
my thought would be lean on the idle adjustment

littleschnebs
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Posted: Tue Jan 07, 2014 2:54 pm Post subject: Re: MC crawler won't start
That is what i initially thoughy but moving the idle screw in and out does not seem to change it at all.

Gene Davis (Ga.)
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Joined: 25 Oct 2003
Posts: 1840
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Posted: Thu Jan 16, 2014 7:26 pm Post subject: Re: MC crawler won't start
The oil pump on a Dubuque engine has to be timed with a tool. If not it will only run on one cylinder.

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John Deere 40C | 420 | 430C | 440C | 440IC | 440ICD | MC Service Manual

Written in the language of a mechanic, this Service Manual for John Deere provides detailed information on how to take your Crawler apart, fix it, and put it back together. You will need this manual if your John Deere is broken. Also known as the Repair, Shop, Technical, IT, Overhaul manual. This is a 126 page factory written reproduction service manual and would have been given to the dealer service shops back when your equipment was new.

Be sure to view below the free pdf preview of the John Deere Crawler Service Manual (mobile users click here). This will help you determine if typical topics such as splitting a tractor, disassembly, assembly, specifications, tolerances, clearances, torque settings, adjustments, hydraulics, power train, engine, electrical, axle or other repairs are included in your John Deere Service Manual.

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John Deere Mc Crawler Specifications

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