distributor cap
distributor cap
hey guys,
i got tuneup parts for my jd440 from ma deere...go to put the dist cap on and she's off about 45 degrees before..from where my old one sets? what gives...made in china too !!! i put old one back on as not sure new will work. have enough trouble keeping her in shape. i don't have timing light to run that way. way old sets is about like pic in manual at about 1 o'clock new sets around 4 or 5 for first fire?????
i got tuneup parts for my jd440 from ma deere...go to put the dist cap on and she's off about 45 degrees before..from where my old one sets? what gives...made in china too !!! i put old one back on as not sure new will work. have enough trouble keeping her in shape. i don't have timing light to run that way. way old sets is about like pic in manual at about 1 o'clock new sets around 4 or 5 for first fire?????
Re: distributor cap
Lavoy, or others, may have more insight into this.
What I found is there are two different caps, some designate as 6 or 12 volt. At times I used ignition parts from the local part store on my 430C (6 volt)and I ended up with the wrong cap, like you have, when someone skipped a line in the catalog. The 6 volt cap has a plug wire terminal each side of one clip and the 12 volt cap has both plug wire terminals on one side between two the clips, a 90 degree difference in the terminal locations in the two caps. The 1909008 cap in the JD parts catalog for the 430C crosses to one cap. The other cap, working backwards, I later found was a Delco # 1935038. I put a note in the book to avoid that again. I just ran the Delco numbers on the JD parts site. The 1909008 now crosses to JD part number R44443. The 1935038 still comes up as JD part number 1935038. So they do have two different distributor caps in the system.
Hope this helps you.
What I found is there are two different caps, some designate as 6 or 12 volt. At times I used ignition parts from the local part store on my 430C (6 volt)and I ended up with the wrong cap, like you have, when someone skipped a line in the catalog. The 6 volt cap has a plug wire terminal each side of one clip and the 12 volt cap has both plug wire terminals on one side between two the clips, a 90 degree difference in the terminal locations in the two caps. The 1909008 cap in the JD parts catalog for the 430C crosses to one cap. The other cap, working backwards, I later found was a Delco # 1935038. I put a note in the book to avoid that again. I just ran the Delco numbers on the JD parts site. The 1909008 now crosses to JD part number R44443. The 1935038 still comes up as JD part number 1935038. So they do have two different distributor caps in the system.
Hope this helps you.
Last edited by Jim B on Mon Sep 03, 2018 11:41 am, edited 1 time in total.
Re: distributor cap
ok Jim B,
part i got is definitely 1935038 and is supposed to be for the 12 volt system, cause he specifically asked if it was.....so what it appears is that have to use the 6 volt cap? by the way this cap priced at 24.75. And can the distributer be turned 90 degrees and use the 12 volt cap? If not how do they use them?
And mine is 12 volt w/alternator and separate voltage regulator
part i got is definitely 1935038 and is supposed to be for the 12 volt system, cause he specifically asked if it was.....so what it appears is that have to use the 6 volt cap? by the way this cap priced at 24.75. And can the distributer be turned 90 degrees and use the 12 volt cap? If not how do they use them?
And mine is 12 volt w/alternator and separate voltage regulator
Re: distributor cap
There is no such thing as a 6 or 12 volt cap, the only difference is the Waterloo built two cylinders use a different cap, and they just happen to be 12 volt. The terminals are 90 degrees out of "phase" so to speak, and if you use this cap, the engine will only hit on one cylinder. Deal with this frequently, and have for 20 plus years.
The part you have is wrong, I sell the correct one for $10. Any competent dealer parts guy would have looked up the part number and verified he was selling you the correct part.
Lavoy
The part you have is wrong, I sell the correct one for $10. Any competent dealer parts guy would have looked up the part number and verified he was selling you the correct part.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com
Owner and moderator www.jdcrawlers.com
Re: distributor cap
dtoots1,
Sounds like you should contact Lavoy for a cap.
Lavoy,
Thanks for the real reason for the two caps.
Jim
Sounds like you should contact Lavoy for a cap.
Lavoy,
Thanks for the real reason for the two caps.
Jim
Re: distributor cap
Lavoy, can you send it?
thanks
dtoots1
thanks
dtoots1
- Stan Disbrow
- 350 crawler
- Posts: 2900
- Joined: Fri Jul 15, 2005 3:13 pm
- Location: Raleigh, NC
Re: distributor cap
Hi,
I find on any Old Iron, I have to carry the original part numbers from the PC with me. Better yet, carry the PC in with me. That way we have the original parts drawings to compare with what the computer crosses....
It is rare to find a parts guy these days that know what one of these things even looks like, much less the parts. Try and have one look up a 420 oil filter and see what they hand you. Most likely a tiny thing. See, JD used 420 for a garden tractor long after they used it on what we have. Gets even worse if you start talking 350.....must be 16 different things 350 from Deere. From a chain saw to a sickle bar to a manure spreader to an articulated dump truck. And, there is a crawler in amongst all those somewhere. (!)
And, there is no relationship between the battery voltage and a distributor cap. Coil, yes. Cap, no. There is at least 30,000 volts under a distributor cap. I am guessing the reference was really that between a Waterloo made tractor and a Dubuque made one where these caps were originally used. That would lead to confusion since so many Dubuque made vertical 2-cyls have been converted to 12v from 6v.
Stan
I find on any Old Iron, I have to carry the original part numbers from the PC with me. Better yet, carry the PC in with me. That way we have the original parts drawings to compare with what the computer crosses....
It is rare to find a parts guy these days that know what one of these things even looks like, much less the parts. Try and have one look up a 420 oil filter and see what they hand you. Most likely a tiny thing. See, JD used 420 for a garden tractor long after they used it on what we have. Gets even worse if you start talking 350.....must be 16 different things 350 from Deere. From a chain saw to a sickle bar to a manure spreader to an articulated dump truck. And, there is a crawler in amongst all those somewhere. (!)
And, there is no relationship between the battery voltage and a distributor cap. Coil, yes. Cap, no. There is at least 30,000 volts under a distributor cap. I am guessing the reference was really that between a Waterloo made tractor and a Dubuque made one where these caps were originally used. That would lead to confusion since so many Dubuque made vertical 2-cyls have been converted to 12v from 6v.
Stan
There's No Such Thing As A Cheap Crawler!
Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)
Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)
Re: distributor cap
I'll try and get it out this afternoon.
Lavoy
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com
Owner and moderator www.jdcrawlers.com
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