[AJD] 2 cyl diesel won't start

astroguy astroguy at nas.com
Wed Jun 13 05:28:48 PDT 2012


Agree about diesel fuel. I found a JD 830 parked in a field for more than 22 
years.  The number of years was accurately determined.  New batteries and 
the tractor started right up . . . . with the 22 year old diesel.

How about air intake?  Did you check for any critters making a new home 
somewhere?

____________________________________________


----- Original Message ----- 
From: "Michael" <mpmbd at yadtel.net>
To: "Antique John Deere mailing list" 
<antique-johndeere at lists.antique-tractor.com>
Sent: Wednesday, June 13, 2012 4:31 AM
Subject: Re: [AJD] 2 cyl diesel won't start


>I never worked on one of the 2-cylinder JD Diesels. Is it possible that the
> injector pump is installed out of time? Timing is crucial to a Diesel as
> well as to spark-ignited engines. Putting the tractor into the highest
> forward gear and pulling it on a paved road should answer questions about
> cranking speed concerns.
> I do not agree about old Diesel fuel. I am using Diesel fuel that is 20
> years old and it works fine. 5 micron filter right where the hose leaves 
> the
> tank.
>
> --------------------------------------------------
> From: "Me" <deanvp at att.net>
> Sent: Tuesday, June 12, 2012 8:47 PM
> To: "Antique John Deere mailing list"
> <antique-johndeere at lists.antique-tractor.com>
> Subject: Re: [AJD] 2 cyl diesel won't start
>
>> Grasping at straws a bit. Is it possible water has gotten into the fuel
>> supply?
>>
>> Connected by DROID on Verizon Wireless
>>
>> -----Original message-----
>> From: dhinds at stny.rr.com
>> To: antique-johndeere at lists.antique-tractor.com
>> Cc: antique-johndeere-request at lists.antique-tractor.com
>> Sent: Wed, Jun 13, 2012 00:35:04 GMT+00:00
>> Subject: Re: [AJD] 2 cyl diesel won't start
>>
>> Hi:
>> Have just read all the good advise to Kevin about spark, but hope someone
>> can
>> give me some advise on a non-spark, a 720 JD DIESEL.
>> Last summer I completed an overhaul of the engine, including valves, head
>> trued, inserts.  Had injectors checked out,
>> relined fuel tank etc.  Started engine, after some trouble getting fuel
>> through the new filters.  Ran it for a couple
>> hours.  Retorqued head bolts, restarted engine, drained radiator and shut
>> down for winter.
>> Have now completed remainder of restoration, reassembled parts I took off
>> to
>> clean and paint.
>> Now the tractor will not start.
>> This is a converted electric start so I am cranking it over with a 12 
>> volt
>> system, using the decompression lever till oil
>> pressure shows and when I drop the lever, the compression is evident.
>> Some
>> mist comes out the muffler, but the engine does not
>> fire.  Have good flow of fuel from transfer pump, and when I disconnect
>> the
>> injector line from the high compression pumps, fuel
>> squirts out when I turn it over.
>> What could be causing an engine that was running fine to refuse all my
>> efforts?
>> Any suggestions welcomed.
>> Duane Hinds Penna
>> ---- antique-johndeere-request at lists.antique-tractor.com wrote:
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>>> Today's Topics:
>>>
>>>    1. Magneto? (Tyler Juranek)
>>>    2. Re: Magneto? (Lyle Kause)
>>>    3. Re: Magneto? (Mike Scholl)
>>>    4. Re: Magneto? (George)
>>>    5. Re: Magneto? (Dean Moore)
>>>    6. Re: Magneto? (John Nordhoff)
>>>
>>>
>>> ----------------------------------------------------------------------
>>>
>>> Message: 1
>>> Date: Mon, 11 Jun 2012 11:29:39 -0500
>>> From: Tyler Juranek <tylerpolkaman at gmail.com>
>>> Subject: [AJD] Magneto?
>>> To: antique-johndeere at lists.antique-tractor.com, Antique tractor email
>>> discussion group <at at lists.antique-tractor.com>
>>> Message-ID:
>>> <CAOesHmAogEHEcX+E8tG3jA94g7Sp1aCnCK-i7Gee6K2i_6N9Lw at mail.gmail.com>
>>> Content-Type: text/plain; charset=ISO-8859-1
>>>
>>> Hi everybody,
>>> On any 2 cylinder John Deere that is a hand start, what is the best
>>> way to test the magnetic field in the magneto?
>>> If it makes more sense, I'm just wondering how to test the mag to find
>>> out how much spark it has.
>>> Any help will be most appreciated!
>>> Thank you,
>>> Tyler
>>>
>>> -- 
>>> Check out my youtube channel, and spread the word!
>>> http://www.youtube.com/tylerthetechy/
>>>
>>>
>>> ------------------------------
>>>
>>> Message: 2
>>> Date: Mon, 11 Jun 2012 12:27:25 -0600
>>> From: "Lyle Kause" <lyle.kause at lexitar.ca>
>>> Subject: Re: [AJD] Magneto?
>>> To: "'Antique John Deere mailing list'"
>>> <antique-johndeere at lists.antique-tractor.com>
>>> Message-ID: <000001cd47ff$da6a8920$8f3f9b60$@kause at lexitar.ca>
>>> Content-Type: text/plain; charset="us-ascii"
>>>
>>> Tyler, My father (deceased now) was able to physically hang onto a spark
>>> plug, or mag and tell me if it was a good spark or not. Needless to say
>> most
>>> people cannot hang on to, or would even want to check for spark this 
>>> way.
>> He
>>> did say though, if you take a dry green blade of grass and slowly slide
>>> it
>>> up on top of the spark plug until you start to feel pulses; The farther
>> away
>>> you are from feeling pulses, the stronger your mag is. Sounds pretty
>>> crude
>>> but is surprisingly accurate.  Lyle
>>>
>>> -----Original Message-----
>>> From: antique-johndeere-bounces at lists.antique-tractor.com
>>> [mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf 
>>> Of
>>> Tyler Juranek
>>> Sent: Monday, June 11, 2012 10:30 AM
>>> To: antique-johndeere at lists.antique-tractor.com; Antique tractor email
>>> discussion group
>>> Subject: [AJD] Magneto?
>>>
>>> Hi everybody,
>>> On any 2 cylinder John Deere that is a hand start, what is the best way
>>> to
>>> test the magnetic field in the magneto?
>>> If it makes more sense, I'm just wondering how to test the mag to find
>>> out
>>> how much spark it has.
>>> Any help will be most appreciated!
>>> Thank you,
>>> Tyler
>>>
>>> --
>>> Check out my youtube channel, and spread the word!
>>> http://www.youtube.com/tylerthetechy/
>>> _______________________________________________
>>> Antique-johndeere mailing list
>>> http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>>
>>>
>>>
>>>
>>> ------------------------------
>>>
>>> Message: 3
>>> Date: Mon, 11 Jun 2012 14:15:13 -0500
>>> From: Mike Scholl <buck69_hunter at hotmail.com>
>>> Subject: Re: [AJD] Magneto?
>>> To: "'Antique John Deere mailing list'"
>>> <antique-johndeere at lists.antique-tractor.com>
>>> Message-ID: <BLU153-ds13600EFFB0894BA35E9AD390F70 at phx.gbl>
>>> Content-Type: text/plain; charset="us-ascii"
>>>
>>> Tyler,
>>>
>>> I've always used a spare spark plug with the base grounded to test for
>>> spark.  If it sparks, the motor should start provided there is good
>>> air/gasoline mixture and that the spark is timed.
>>>
>>> A number of things can go wrong besides the mag coil... the impulse is
>> also
>>> critical.  At very low revolution speeds (like when starting), the
>>> impulse
>>> provides for more internal magneto speed which generates a hotter spark.
>>>
>>> Since there are a number of different mag options, which are we talking
>>> about Wico C or X, or Fairbanks-Morse?
>>>
>>> Mike
>>>
>>> -----Original Message-----
>>> From: antique-johndeere-bounces at lists.antique-tractor.com
>>> [mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf 
>>> Of
>>> Lyle Kause
>>> Sent: Monday, June 11, 2012 1:27 PM
>>> To: 'Antique John Deere mailing list'
>>> Subject: Re: [AJD] Magneto?
>>>
>>> Tyler, My father (deceased now) was able to physically hang onto a spark
>>> plug, or mag and tell me if it was a good spark or not. Needless to say
>> most
>>> people cannot hang on to, or would even want to check for spark this 
>>> way.
>> He
>>> did say though, if you take a dry green blade of grass and slowly slide
>>> it
>>> up on top of the spark plug until you start to feel pulses; The farther
>> away
>>> you are from feeling pulses, the stronger your mag is. Sounds pretty
>>> crude
>>> but is surprisingly accurate.  Lyle
>>>
>>> -----Original Message-----
>>> From: antique-johndeere-bounces at lists.antique-tractor.com
>>> [mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf 
>>> Of
>>> Tyler Juranek
>>> Sent: Monday, June 11, 2012 10:30 AM
>>> To: antique-johndeere at lists.antique-tractor.com; Antique tractor email
>>> discussion group
>>> Subject: [AJD] Magneto?
>>>
>>> Hi everybody,
>>> On any 2 cylinder John Deere that is a hand start, what is the best way
>>> to
>>> test the magnetic field in the magneto?
>>> If it makes more sense, I'm just wondering how to test the mag to find
>>> out
>>> how much spark it has.
>>> Any help will be most appreciated!
>>> Thank you,
>>> Tyler
>>>
>>> --
>>> Check out my youtube channel, and spread the word!
>>> http://www.youtube.com/tylerthetechy/
>>> _______________________________________________
>>> Antique-johndeere mailing list
>>> http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>>
>>>
>>> _______________________________________________
>>> Antique-johndeere mailing list
>>> http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>>
>>>
>>>
>>> ------------------------------
>>>
>>> Message: 4
>>> Date: Mon, 11 Jun 2012 14:36:29 -0500
>>> From: George <jddt at cox.net>
>>> Subject: Re: [AJD] Magneto?
>>> To: Antique John Deere mailing list
>>> <antique-johndeere at lists.antique-tractor.com>
>>> Message-ID: <taif8k4g9ghtxv9acvvkko34.1339443389226 at email.android.com>
>>> Content-Type: text/plain; charset=utf-8
>>>
>>> I saw your email.  I have found a spark tester for tractors.  It snaps 
>>> on
>> the plug and the other end goes to the wire from the mag.  Then when you
>> turn the tractor over it lights when the mag fires.  I got them at a
>> traveling tool sale but do not remember the name of the company.  I know
>> they work well.  Can also tell how hot the spark is by how bright it
>> fires.
>> Vrry handy.
>>>
>>> Lyle Kause <lyle.kause at lexitar.ca> wrote:
>>>
>>> >Tyler, My father (deceased now) was able to physically hang onto a 
>>> >spark
>>> >plug, or mag and tell me if it was a good spark or not. Needless to say
>> most
>>> >people cannot hang on to, or would even want to check for spark this
>>> >way.
>> He
>>> >did say though, if you take a dry green blade of grass and slowly slide
>> it
>>> >up on top of the spark plug until you start to feel pulses; The farther
>> away
>>> >you are from feeling pulses, the stronger your mag is. Sounds pretty
>> crude
>>> >but is surprisingly accurate.  Lyle
>>> >
>>> >-----Original Message-----
>>> >From: antique-johndeere-bounces at lists.antique-tractor.com
>>> >[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf
>>> >Of
>>> >Tyler Juranek
>>> >Sent: Monday, June 11, 2012 10:30 AM
>>> >To: antique-johndeere at lists.antique-tractor.com; Antique tractor email
>>> >discussion group
>>> >Subject: [AJD] Magneto?
>>> >
>>> >Hi everybody,
>>> >On any 2 cylinder John Deere that is a hand start, what is the best way
>> to
>>> >test the magnetic field in the magneto?
>>> >If it makes more sense, I'm just wondering how to test the mag to find
>> out
>>> >how much spark it has.
>>> >Any help will be most appreciated!
>>> >Thank you,
>>> >Tyler
>>> >
>>> >--
>>> >Check out my youtube channel, and spread the word!
>>> >http://www.youtube.com/tylerthetechy/
>>> >_______________________________________________
>>> >Antique-johndeere mailing list
>>> >http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>> >
>>> >
>>> >_______________________________________________
>>> >Antique-johndeere mailing list
>>> >http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>>
>>>
>>>
>>> ------------------------------
>>>
>>> Message: 5
>>> Date: Mon, 11 Jun 2012 15:21:08 -0500
>>> From: Dean Moore <lazyminok at gmail.com>
>>> Subject: Re: [AJD] Magneto?
>>> To: Antique John Deere mailing list
>>> <antique-johndeere at lists.antique-tractor.com>
>>> Message-ID: <0F8376F3-2241-450D-BC00-1DF2EF8A1CC2 at gmail.com>
>>> Content-Type: text/plain; charset=us-ascii
>>>
>>> Spark is same at hand turn as in full rpm. The mag makes no different
>> implus power
>>>
>>> Sent from my iPhone
>>>
>>> On Jun 11, 2012, at 2:15 PM, Mike Scholl <buck69_hunter at hotmail.com>
>> wrote:
>>>
>>> > Tyler,
>>> >
>>> > I've always used a spare spark plug with the base grounded to test for
>>> > spark.  If it sparks, the motor should start provided there is good
>>> > air/gasoline mixture and that the spark is timed.
>>> >
>>> > A number of things can go wrong besides the mag coil... the impulse is
>> also
>>> > critical.  At very low revolution speeds (like when starting), the
>> impulse
>>> > provides for more internal magneto speed which generates a hotter
>>> > spark.
>>> >
>>> > Since there are a number of different mag options, which are we 
>>> > talking
>>> > about Wico C or X, or Fairbanks-Morse?
>>> >
>>> > Mike
>>> >
>>> > -----Original Message-----
>>> > From: antique-johndeere-bounces at lists.antique-tractor.com
>>> > [mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf
>> Of
>>> > Lyle Kause
>>> > Sent: Monday, June 11, 2012 1:27 PM
>>> > To: 'Antique John Deere mailing list'
>>> > Subject: Re: [AJD] Magneto?
>>> >
>>> > Tyler, My father (deceased now) was able to physically hang onto a
>>> > spark
>>> > plug, or mag and tell me if it was a good spark or not. Needless to 
>>> > say
>> most
>>> > people cannot hang on to, or would even want to check for spark this
>> way. He
>>> > did say though, if you take a dry green blade of grass and slowly 
>>> > slide
>> it
>>> > up on top of the spark plug until you start to feel pulses; The 
>>> > farther
>> away
>>> > you are from feeling pulses, the stronger your mag is. Sounds pretty
>> crude
>>> > but is surprisingly accurate.  Lyle
>>> >
>>> > -----Original Message-----
>>> > From: antique-johndeere-bounces at lists.antique-tractor.com
>>> > [mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf
>> Of
>>> > Tyler Juranek
>>> > Sent: Monday, June 11, 2012 10:30 AM
>>> > To: antique-johndeere at lists.antique-tractor.com; Antique tractor email
>>> > discussion group
>>> > Subject: [AJD] Magneto?
>>> >
>>> > Hi everybody,
>>> > On any 2 cylinder John Deere that is a hand start, what is the best 
>>> > way
>> to
>>> > test the magnetic field in the magneto?
>>> > If it makes more sense, I'm just wondering how to test the mag to find
>> out
>>> > how much spark it has.
>>> > Any help will be most appreciated!
>>> > Thank you,
>>> > Tyler
>>> >
>>> > --
>>> > Check out my youtube channel, and spread the word!
>>> > http://www.youtube.com/tylerthetechy/
>>> > _______________________________________________
>>> > Antique-johndeere mailing list
>>> > http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>> >
>>> >
>>> > _______________________________________________
>>> > Antique-johndeere mailing list
>>> > http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>> >
>>> > _______________________________________________
>>> > Antique-johndeere mailing list
>>> > http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>>
>>>
>>>
>>> ------------------------------
>>>
>>> Message: 6
>>> Date: Mon, 11 Jun 2012 22:27:38 -0400
>>> From: John Nordhoff <jmn50 at msn.com>
>>> Subject: Re: [AJD] Magneto?
>>> To: <antique-johndeere at lists.antique-tractor.com>
>>> Message-ID: <COL120-W34A1395E55BF4674175286A9F60 at phx.gbl>
>>> Content-Type: text/plain; charset="iso-8859-1"
>>>
>>>
>>>  One cheap n easy way is to use a plug wire that is spaced 3/16 inch 
>>> away
>> from the mags metal and hand turn the mag so the impulse snaps and you
>> should get a bright visible blue spark as opposed to a thin wimpy hard to
>> see yellow spark. If the impulse spring is weak the spark will be weaker,
>> it
>> should make a loud sharp SNAP not a faint dull clunk when it snaps. Of
>> course, this is ONLY the static impulse spark were talkin about here 
>> which
>> isnt the same as when the impulse becomes disabled (around 250 RPM) and
>> then
>> the faster the RPM the more spark energy thats developed. Typical 
>> problems
>> are burned points,,,,,,weak magnetic strength rotors,,,,,,,,,,weak or bad
>> condensor,,,,,,,,,,weak spring (affects start spark only).............
>> John T in Indiana
>>>  > Date: Mon, 11 Jun 2012 11:29:39 -0500
>>> > From: tylerpolkaman at gmail.com
>>> > To: antique-johndeere at lists.antique-tractor.com;
>> at at lists.antique-tractor.com
>>> > Subject: [AJD] Magneto?
>>> >
>>> > Hi everybody,
>>> > On any 2 cylinder John Deere that is a hand start, what is the best
>>> > way to test the magnetic field in the magneto?
>>> > If it makes more sense, I'm just wondering how to test the mag to find
>>> > out how much spark it has.
>>> > Any help will be most appreciated!
>>> > Thank you,
>>> > Tyler
>>> >
>>> > -- 
>>> > Check out my youtube channel, and spread the word!
>>> > http://www.youtube.com/tylerthetechy/
>>> > _______________________________________________
>>> > Antique-johndeere mailing list
>>> > http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>>
>>>
>>> ------------------------------
>>>
>>> _______________________________________________
>>> Antique-johndeere mailing list
>>> Antique-johndeere at lists.antique-tractor.com
>>> http://www.antique-tractor.com/mailman/listinfo/antique-johndeere
>>>
>>>
>>> End of Antique-johndeere Digest, Vol 84, Issue 2
>>> ************************************************
>>
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