Help need with David Brown 1200

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User avatar
dbnewbieoh
Posts: 20
Joined: Tue May 22, 2012 4:08 pm
Location: Ohio USA

Help need with David Brown 1200

Post by dbnewbieoh » Tue May 22, 2012 4:59 pm

Hi,

I'm looking at a David Brown 1200, with a DB loader, and DB wheel weights. The tractor was used on a small hobby farm for misc. chores and mostly for summer straw baling. The previous owner died about 6-7 years ago. The tractor sat in the barn all of these years until last year when the wife started and ran the tractor. She told me that the its leaking engine oil, transmission fluid, and hydraulic fluid.

I know nothing about David Brown but am willing to learn. So here are my questions.....

Are these common leaks per say with David Brown's ?
If so are they easy fixes ?
Is it worth trying to save this tractor ?

Thanks !

User avatar
richbug
Posts: 1358
Joined: Mon Mar 22, 2010 5:32 pm
Location: Pennsylvania, United States of America

RE: Help need with David Brown 1200

Post by richbug » Tue May 22, 2012 6:59 pm

It is British... The the hillbilly axiom says "if there ain't no oil under it, there ain't no oil in it", some truth to it. The way it is constructed, there are lots of places for oil to leak, if you are handy, it isn't usually a big deal to fix(gaskets/hoses/seals) leaks show neglect as they weren't fixed as they sprung up.

Hydraulic fluid is transmission fluid on these, it shows the seller's lack of knowledge.

I save as many as I can. I have a 1200 on my slate that is much worse off than that one.


I might me interested in it if you aren't. Sending you a PM.
Users: 780, 1210 Bottle Opener, 1494 4wd open station with 74L, 990, 1394, 1194 High Clearance, another 1394, 1194 LCG, 1290 with 56L, 900, 885 with LS8, 885, 1190

1200, 900 projects, 780,

Parts: 3800, 1200, 1394, 1412, 1490, 770, 885, 990SEL, Red 990I,

User avatar
dj
Posts: 376
Joined: Sat Sep 11, 2010 8:10 pm
Location: West Wales

RE: Help need with David Brown 1200

Post by dj » Tue May 22, 2012 7:07 pm

Hi dbnewbieoh, and welcome,

David Brown tractors are a connoisseur's tractor.
Hugely fuel efficient, and a very advanced hydraulic system that other tractor types-Red, Blue and Green could only dream of. They are hard workers and owners are very loyal to the brand.

The downside is that the brand was bought out in the 1970's and the remnants of the tractor side of the business is now owned by Case. Case do not manufacture the whole range of original replacement parts (and what they do sell is expensive) but thankfully, there are lots of aftermarket companies that make a wide range of acceptable parts. Service parts like filters, gaskets and so on are easy to get hold of, as are pistons, valves, rings, exhausts, wheel bearings, water pumps etc. but specialist items within the engine and hydraulic system are pretty difficult to source, and may only be available second hand.

New body panels are very hard to source.

Having said that, you will see on this site, many examples of machines that have been brought back to life from an extremely dark place.

So to answer your questions:
There are leaks and leaks. It depends which part of the engine is leaking, and how much.
The hydraulic and transmission system uses the same oil.
Are the hydraulic leaks from the loader rams or pipes?
I think new oil seals are available for DB loaders.

Are there easy fixes?
Depends on where they are. If you could post pictures here to show what's leaking and how much, I'm sure one of our resident experts can give you an indication of what the cause is, and whether it's fixable.
Depending on that answer, you could then decide your own answer to question 3.

User avatar
dbnewbieoh
Posts: 20
Joined: Tue May 22, 2012 4:08 pm
Location: Ohio USA

RE: Help need with David Brown 1200

Post by dbnewbieoh » Tue May 22, 2012 9:12 pm

Questions

So even the loader has tranny fluid ?
Are the hour meters known to not work/quit ? This tractor only shows 1400hrs.
Is there any truth to the crankshafts being weak ?

Thanks guys !

User avatar
richbug
Posts: 1358
Joined: Mon Mar 22, 2010 5:32 pm
Location: Pennsylvania, United States of America

Re: RE: Help need with David Brown 1200

Post by richbug » Tue May 22, 2012 9:34 pm

So even the loader has tranny fluid ?
-Yes, unless someone has rigged something up.


Are the hour meters known to not work/quit ?
-This tractor only shows 1400hrs.

The hour meters only work if the owner keeps a good drive cable attached.
-There are still low hour gems out there, I have a 990 with under 800 on a working original tach. It could just as likely be once around the meter too. Several members here have 10,000 plus hour machines.



Is there any truth to the crankshafts being weak ?
-They don't like being lugged(high load low RPMs). Don't ask it to do heavy work below 1800 rpms and it will be fine.
Users: 780, 1210 Bottle Opener, 1494 4wd open station with 74L, 990, 1394, 1194 High Clearance, another 1394, 1194 LCG, 1290 with 56L, 900, 885 with LS8, 885, 1190

1200, 900 projects, 780,

Parts: 3800, 1200, 1394, 1412, 1490, 770, 885, 990SEL, Red 990I,

User avatar
dj
Posts: 376
Joined: Sat Sep 11, 2010 8:10 pm
Location: West Wales

RE: Help need with David Brown 1200

Post by dj » Tue May 22, 2012 9:45 pm

So even the loader has tranny fluid ?
Yes. The loader pipework is connected to the tractor via a spool valve or a "3 way valve".
The hydraulic oil is the same oil that's in the gearbox or transmission fluid.
(Does the word "Tranny" have the same connotations on that side of the pond??)

Are the hour meters known to not work/quit ? This tractor only shows 1400hrs.
Yes they do. Usually it's the cable that's broken. Easily fixed. If it's the meter, replacements are readily available.

Is there any truth to the crankshafts being weak ?
I've heard the story. Whether it has any truth to it, I can't say.
I think there was a thread on here some months back that dispelled it.
Use the "Search" facility at the top of the page, type in crankshaft broken, check the "Search for all terms" button, and see what you come up with.

mitch
Posts: 969
Joined: Fri Apr 21, 2006 10:29 am
Location: Toowoomba Australia

RE: Help need with David Brown 1200

Post by mitch » Tue May 22, 2012 10:02 pm

Price is the determiner. If it runs and is not expensive buy it, you will not be dissapointed. Leaks are nothing, it is just marking its territory. Parts are good to get. Are the panels in good order? Any pictures.
non-Q 1975 1210 2wd
model# 1210/1 728931
engine# AD4/55A 26193

1975 1412 2wd
model# 1412/1 1050623
engine# 455011 120673

User avatar
richbug
Posts: 1358
Joined: Mon Mar 22, 2010 5:32 pm
Location: Pennsylvania, United States of America

Re: RE: Help need with David Brown 1200

Post by richbug » Tue May 22, 2012 11:16 pm

dj wrote: (Does the word "Tranny" have the same connotations on that side of the pond??)
Do you wear women's clothes???? Don't want to insult anyone. :D


Tranny is slang here for transmission.
Users: 780, 1210 Bottle Opener, 1494 4wd open station with 74L, 990, 1394, 1194 High Clearance, another 1394, 1194 LCG, 1290 with 56L, 900, 885 with LS8, 885, 1190

1200, 900 projects, 780,

Parts: 3800, 1200, 1394, 1412, 1490, 770, 885, 990SEL, Red 990I,

mitch
Posts: 969
Joined: Fri Apr 21, 2006 10:29 am
Location: Toowoomba Australia

RE: Re: RE: Help need with David Brown 1200

Post by mitch » Tue May 22, 2012 11:22 pm

or a Ford Transit Van.
non-Q 1975 1210 2wd
model# 1210/1 728931
engine# AD4/55A 26193

1975 1412 2wd
model# 1412/1 1050623
engine# 455011 120673

User avatar
dbnewbieoh
Posts: 20
Joined: Tue May 22, 2012 4:08 pm
Location: Ohio USA

RE: Re: RE: Help need with David Brown 1200

Post by dbnewbieoh » Wed May 23, 2012 1:53 am

I'll try to get some picture taken tomorrow.

The panels all good with little to no rust .......This tractor was barn kept. The stickers are all faded or missing.
Fenders are the big L shaped fenders in nice shape.

I gave $1000.00 for it today.

Thanks ya'll !

User avatar
richbug
Posts: 1358
Joined: Mon Mar 22, 2010 5:32 pm
Location: Pennsylvania, United States of America

RE: Re: RE: Help need with David Brown 1200

Post by richbug » Wed May 23, 2012 2:24 am

The stickers will run you about $70 for a decent looking hood set.

You stole it.
Users: 780, 1210 Bottle Opener, 1494 4wd open station with 74L, 990, 1394, 1194 High Clearance, another 1394, 1194 LCG, 1290 with 56L, 900, 885 with LS8, 885, 1190

1200, 900 projects, 780,

Parts: 3800, 1200, 1394, 1412, 1490, 770, 885, 990SEL, Red 990I,

mitch
Posts: 969
Joined: Fri Apr 21, 2006 10:29 am
Location: Toowoomba Australia

RE: Re: RE: Help need with David Brown 1200

Post by mitch » Wed May 23, 2012 3:26 am

I would take two for that price with a loader!
non-Q 1975 1210 2wd
model# 1210/1 728931
engine# AD4/55A 26193

1975 1412 2wd
model# 1412/1 1050623
engine# 455011 120673

User avatar
erkki
Posts: 2032
Joined: Sun Apr 09, 2006 12:02 pm
Location: North Finland

RE: Re: RE: Help need with David Brown 1200

Post by erkki » Wed May 23, 2012 6:28 am

According to literature the crank problem occurred in 1968 when the engine power was increased over 70 hp. Development department tested the cranks and found a solution to produce cmpressive residual stress on the surfaces of the critical points. The cured the problem.

RGDS erkki

Guest

RE: Re: RE: Help need with David Brown 1200

Post by Guest » Wed May 23, 2012 8:24 am

With regard to oil leaks, a tractor that has been stood for some considerable time unused, some of the oil seals and some gaskets will 'dry out', such oil seals that will do this is the rear crank seal, front timing case seal, gearbox front seal and certain O rings such as those in the 3-way-valve unit. Rear engine oil seal leak will leak black oil from under the bell housing, geabox front seal will leak clean oil from the bell housing so those are easily identified. Not always, but sometimes, a good days work will stop leaks by the oil swelling the seals as being stood they dry out, especially on earlier tractors where leather and felt seals were used.

ryanvu1
Posts: 98
Joined: Sat Feb 02, 2008 2:50 pm
Location: Lafayette, Louisiana

RE: Re: RE: Help need with David Brown 1200

Post by ryanvu1 » Wed May 23, 2012 11:20 am

You got a bargain. Post photos!
David Brown 990/1 11100539
David Brown 990/1 11095913
David Brown 990/1 11100514
David Brown 990/1 11098984
David Brown 885/1/625360
David Brown 880A 549238
David Brown 1200/A 712351

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