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What is a 20-85 ?

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PTF

05-20-2006 14:02:45

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When I bought my tractor I was told it was a Ferguson 2085. I don't see much reference to a 2085, maybe they are also known as something else. The serial number from the steering column starts with a permanent TE followed by a stamped A442066. Can anyone identify this tractor? It seems to have a botched 12 volt conversion whereas the battery appears to overcharge and is dead the next time I use it. I need to correct this charging system pronto...she just died on me while bushhoggin'. Thank you

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PTF

05-22-2006 07:05:39

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Re: What is a 20-85 ? in reply to PTF, 05-20-2006 14:02:45

Well here it is. Anyone that can help with this wiring would be much appreciated.Does it appear to be right? I get zero reading on the ammeter and the battery dies on me continuosly after use. I'm also not sure what terminal on the generator is the field or armature. Thank you

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richard in nz

05-23-2006 04:12:44

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Re: What is a 20-85 ? in reply to PTF, 05-22-2006 07:05:39

The regulator is not shown connected to ground in the diagram, if it is'nt it wont work.

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PTF

05-23-2006 09:54:51

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Re: What is a 20-85 ? in reply to richard in nz, 05-23-2006 04:12:44

Maybe I will try grounding the E terminal an see how it goes. Thanks

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John (UK)

05-23-2006 10:52:23

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Re: What is a 20-85 ? in reply to PTF, 05-23-2006 09:54:51

The Regulator, it is supposed to be wired:-
D = dynamo (generator)
E = Earth (ground)
A = Accumulator (battery)
F = Field coils on Generator (the small one)
If you didn't have the earth in use on the other Regulator that will cause the problems you have, these systems always have to be earthed (grounded)

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PTF

05-24-2006 18:27:30

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Re: What is a 20-85 ? in reply to John (UK), 05-23-2006 10:52:23

Thank you John. I will try that. How do I know what terminal is what on the generator? I have one spade terminal and one screw terminal.

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John (UK)

05-24-2006 18:42:22

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Re: What is a 20-85 ? in reply to PTF, 05-24-2006 18:27:30

That is an unusual combination....lol
The D terminal will be the largest one as that carries the current, the field coil is usually the smallest one. Definitely not factory fitted that one.

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PTF

05-21-2006 21:26:39

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Re: What is a 20-85 ? in reply to PTF, 05-20-2006 14:02:45

THanks again AL and John. Is there some sort of cryptic message in that engine number John to arrive at such a precise manufacturing date? Don't you two run away...I'm trying to draw a wiring diagram for this same tractor that I am going to post. Having troubles charging. The tractor is wired with a five terminal Lucas regulator. The wiring diagrams posted on FENA only show a four terminal VR.

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John (UK)

05-22-2006 06:03:23

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Re: What is a 20-85 ? in reply to PTF, 05-21-2006 21:26:39

That is interesting a FIVE terminal regulator, I would like to see that, it only has a four terminal type in the Service Manual and even the later Manual for the 35 only has the same four terminals. Do you think that the regulator has been changed during its life for one from something else?? Does it look as though some wiring has been added.
No cryptic message...its just that I have some of the manufacturing records from the factory, so I looked it up, they are far from complete but it does give you a clue as to when they were made and very often you can work it out to within a couple of days.

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PTF

05-22-2006 06:15:01

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Re: What is a 20-85 ? in reply to John (UK), 05-22-2006 06:03:23

I believe lots of things have been changed from original on this tractor. I think Macgyver used to own it. It certainly is a five terminal Lucas VR with terminals A1,A,F,D, and E. I have replaced wire for wire but I don't believe it is correct.

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John (UK)

05-22-2006 06:37:15

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Re: What is a 20-85 ? in reply to PTF, 05-22-2006 06:15:01

The A1 terminal was used on other vehicles for powering accessories I believe, certainly never had that fitted from the factory. Maybe worthwhile considering fitting correct regulator and wiring to resolve your problems, they are available. I have correct wiring diagrams. if you need it....John

PS the original regulators just had D/E/A/F maybe if you used those on that box and forget the A1 terminal, I don"t know how it would affect the wiring you have though.

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Al in BC

05-21-2006 10:33:01

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Re: What is a 20-85 ? in reply to PTF, 05-20-2006 14:02:45

PTF

You have a 1955 by that serial number. Look after her she"s your friend.

Al in BC

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gerard

05-20-2006 14:34:33

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Re: What is a 20-85 ? in reply to PTF, 05-20-2006 14:02:45

TEA = Ferguson with British Standard engine (as opposed to USA Continental engine. 2085 is an unofficial designation, signifying series 20 tractor (TEA20) with 85mm bore size.

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PTF

05-20-2006 19:12:32

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Re: What is a 20-85 ? in reply to gerard, 05-20-2006 14:34:33

Thank you Gerard. That is very interesting. Does the A disignate the engine type and is an 85mm bore unusual?

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John (UK)

05-21-2006 05:17:36

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Re: What is a 20-85 ? in reply to PTF, 05-20-2006 19:12:32

85mm is not unusual from 1948 to 1951 they were 80mm then from 1951 until 1956 they were 85mm it was to give more power and to standardise the bore across the range of engines. They made other types of engines other than the gas engines that you know, ones to run on cheaper fuel and Diesel models as well. They made about 20 variations of the tractor and the third letter told you what it was. Not only did "A" mean it was a gas engine it also meant it was a standard width agricultural tractor too, just to complicate matters they also did industrial tractors here in UK using the agricultural tractor but adapted for Industrial use and each variation had its own third letter. I hope you can follow all that.....John

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Al in BC

05-20-2006 22:09:14

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Re: What is a 20-85 ? in reply to PTF, 05-20-2006 19:12:32

PTF
TEA 2085 means that it is T- Tractor E- England A- Petrol 20-Series 85-mm. bore
John in the UK will agree

Al in BC

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PTF

05-20-2006 22:23:22

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Re: What is a 20-85 ? in reply to Al in BC, 05-20-2006 22:09:14

Thank you AL in BC. Any idea what year this tractor may be?

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John (UK)

05-21-2006 05:09:25

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Re: What is a 20-85 ? in reply to PTF, 05-20-2006 22:23:22

Of course I agree with you Al....lol
To find out what date it is you would have to give us the serial number from the plate bear the throttle control on the dash and the engine number stamped in the block between the oil filler and the ignition coil begins with "S" ends with "E" and maybe has another letter after that but not always. The first TEA 85mm engines were made in 1951

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PTF

05-21-2006 13:28:44

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Re: What is a 20-85 ? in reply to John (UK), 05-21-2006 05:09:25

Before I had a chance to look up the engine number Al in BC informs me that I have a 1955 2085. Thank you Al. At any rate here is the engine number in case anyone would like to pass along anymore great information. SC95304EVR Thank you all.

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Al in BC

05-21-2006 13:58:00

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Re: What is a 20-85 ? in reply to PTF, 05-21-2006 13:28:44

PTF.
Further to the engine serial number. Mine is 95483 just a little after yours. Yes as John says mine has rotators on the exhaust valves. Good Thing.

I don"t know if this holds water but I have a screwed plate on the right side forward on the rear end casing and that number is 2-4-5, guessing that mine is 02 april 55. I think that plate tells when it was built. Might be wrong, John will know.

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John (UK)

05-22-2006 06:24:04

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Re: What is a 20-85 ? in reply to Al in BC, 05-21-2006 13:58:00

Al, Your tractor was made on 14/4/55 as near as I can get it, you can"t tell from the engine numbers as they seemed use the one nearest to the production line, certainly not in numerical order which you would have thought they would do.(or is that NOT logical thinking) This screwed plate, is it actually a plate screwed to the casting or is is cast into the housing, I have never seen a plate like that but I have seen what looks like a plate but it was cast into it, that was how they changed the production date of the castings and it would only be the date the casting was made then it would have to be machined and then sent over to the line and sometimes the components were hanging around for a month or so but it looks as though yours wasn"t hanging around very long at all. If it is a separate plate on your casting Al, could you send me a picture of it plz?..John

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Al in BC

05-22-2006 12:40:28

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Re: What is a 20-85 ? in reply to John (UK), 05-22-2006 06:24:04

Hi! John in the UK.
Closer look tells me that it is fact a casting with straight screw driver screws cast in. I will get you a pic as soon as it stops bloody raining here.

Al in BC

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John (UK)

05-21-2006 13:48:36

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Re: What is a 20-85 ? in reply to PTF, 05-21-2006 13:28:44

Your engine is a little unusual as it has Rotating Exhaust valves, not many of those around. The tractor was made in the first few days of April 1955 (around 2nd to 5th)

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richard in nz

05-22-2006 04:25:16

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Re: What is a 20-85 ? in reply to John (UK), 05-21-2006 13:48:36

I thought the A prefix ment petrol engine made by the Standard Motor Co as opposed to the Continental engine which was designated the TE?

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John (UK)

05-22-2006 05:37:32

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Re: What is a 20-85 ? in reply to richard in nz, 05-22-2006 04:25:16

That is true that "A" is a Standard engine but it also means it is a standard width agricultural tractor too, it just doesn't refer to the engine type. But here in UK /Europe / Scandinavia / Australia / New Zealand / Africa these other variations were available, (not all in every country though) Like you can get a TEB which is a Narrow tractor with a Continental engine and you can get a TEC which is a Narrow tractor with a Standard Engine or a TEJ which is a Narrow tractor with a Standard zero octane engine. There are 16 variations of tractor plus variations on the Industrial types as well. We have four different fuel engines each with standard/narrow/vineyard/industrial versions available. So that last prefix letter tells us what the spec of the tractor is not just what the engine is.

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richard in nz

05-23-2006 04:11:03

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Re: What is a 20-85 ? in reply to John (UK), 05-22-2006 05:37:32

Moved to New Zealand from Derbyshire 18 months ago. I have seen several adverts here for Ferguson TE 28 tractors, now whats that when its at home?

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John (UK)

05-23-2006 14:02:04

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Re: What is a 20-85 ? in reply to richard in nz, 05-23-2006 04:11:03

Been thinking about your question about the TE28, while there isn't a TE28 I wonder if locally they sold it as a TE28 because it was 28hp and they do sell the tractor in some markets with a different name like 20/85 in Canada....Just a thought.....I must ask the Registrar at the Ferguson club later see if he has heard of it.....John

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John (UK)

05-23-2006 07:26:33

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Re: What is a 20-85 ? in reply to richard in nz, 05-23-2006 04:11:03

Never heard that one before, being TE it would have had to have been made in either Coventry or Beauvais in France and I have never heard of that model before. I am certain that that is a mistake on someones part. For some time in UK we have had people calling the TE20 a T20, whether it is just being to lazy to say speak properly I don't know, it can create problems as they ask about a T20 and it could be a TE20 or a TO20 made in USA, but they carry on doing it, ignorance I suppose. Just in passing, there is an FF30, this is the TE20 series but made in France after the TE20 officially finished production in Coventry, they built it for about three years, but it wasn't exported, it was only for France, the engines were uprated in horsepower but the rest of the tractor was the same, they painted it Red Castings and Grey Tinwork, it was to compete with the Renault tractor. The adverts you say you saw I take are for second-hand tractors, not new, if you ever find a picture I would be grateful if you would send it to me and I could see what if any differences there are or is it as I think just a mistake. I suppose the life in New Zealand is better than back in Derbyshire for you, we have a friend who has been there a few times and she says it is beautiful.....John
fergusontractors(at)tiscali.co.uk

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