Search found 487 matches

by philedge
Sun Apr 18, 2021 7:07 am
Forum: David Brown Tractor Forum
Topic: New electrics
Replies: 13
Views: 179

Re: New electrics

No reason not to use Halfords parts, IF theyve got the correct parts.

Youre probably more likely to get the correct parts from an experienced DB parts supplier
by philedge
Sun Apr 18, 2021 7:02 am
Forum: David Brown Tractor Forum
Topic: 990 Selectamatic Linkage Geometry
Replies: 52
Views: 1022

Re: 990 Selectamatic Linkage Geometry

By comparison my friend's Ford 4600 (approx 40hp for comparison) will lift the rear of the haybob a couple of feet off the ground. The issue (if it is a issue) with the Haybob not lifting to the height the user wants, is due to the positioning of the lower and top link connections on the implement....
by philedge
Fri Apr 16, 2021 11:43 am
Forum: David Brown Tractor Forum
Topic: 990 Selectamatic Linkage Geometry
Replies: 52
Views: 1022

Re: 990 Selectamatic Linkage Geometry

To get the right length you can also look in the tractors manual and buy the specified length from a multitude of sources including your local agri supplier, ebay, Barcley Williams or David Brown Parts. Ive sourced bits from all of those without any problems.
by philedge
Fri Apr 16, 2021 7:12 am
Forum: David Brown Tractor Forum
Topic: 990 Selectamatic Linkage Geometry
Replies: 52
Views: 1022

Re: 990 Selectamatic Linkage Geometry

I got my adjustable top link from the local agri suppliers as its a universal part and not DB specific. If youre concerned about consumption then used ones are freely available on ebay.

Just make sure you buy the correct length as per the manual.
by philedge
Thu Apr 15, 2021 11:13 pm
Forum: David Brown Tractor Forum
Topic: 990 Selectamatic Linkage Geometry
Replies: 52
Views: 1022

Re: 990 Selectamatic Linkage Geometry

Jeff.990 wrote:
Thu Apr 15, 2021 10:23 pm
But, noting the manual quoted (which I have, plus two others variations I checked) don’t provide a length recommendation for the top link, that I could find.
If you follow the link Olek posted, the top link length is in the section on linkage settings.
by philedge
Wed Apr 14, 2021 9:01 am
Forum: David Brown Tractor Forum
Topic: 990 Selectamatic Linkage Geometry
Replies: 52
Views: 1022

Re: 990 Selectamatic Linkage Geometry

Ive had what looks like the exact same harrows on the back of my 880 and they lifted well clear of the ground front and rear. I know the hitch dimensions are probably different between 880/990 but Id be sure DB would have designed hitches across the range to be compatible with most implements. As me...
by philedge
Tue Apr 13, 2021 10:43 am
Forum: David Brown Tractor Forum
Topic: A big job.
Replies: 7
Views: 365

Re: A big job.

A DB 12000 or similar :D
by philedge
Thu Apr 08, 2021 1:13 pm
Forum: David Brown Tractor Forum
Topic: 990 Selectamatic Linkage Geometry
Replies: 52
Views: 1022

Re: 990 Selectamatic Linkage Geometry

If you think its a DB/PZ compatibility issue and you want to lift the haybob higher, you may be able to use a hydraulic top link to shorten the top link and lift the haybob higher. Plumb the top link to port 1 on the 3 way valve and run with the 3 way valve in position L/1. When you lift the lower l...
by philedge
Wed Apr 07, 2021 8:36 am
Forum: David Brown Tractor Forum
Topic: Valve guide seals
Replies: 3
Views: 108

Re: Valve guide seals

Inlet valve seals are shown in the 1212 parts manual here https://sites.google.com/site/deerebrown/david-brown-info-ii/david-brown-parts-manuals As db2d says a good work out may dry things out, but your gonna put out alot of crap if you havent really got the work for the tractor. Maybe do alot of jo...
by philedge
Tue Apr 06, 2021 8:47 am
Forum: David Brown Tractor Forum
Topic: 990 Selectamatic Linkage Geometry
Replies: 52
Views: 1022

Re: 990 Selectamatic Linkage Geometry

If you look on youtube theres videos of a variety of selectamatics working with haybobs. Ive not watched any but you may be able to see what sort of lift other DBs are getting and if its much more than you get??
by philedge
Sun Apr 04, 2021 6:53 pm
Forum: David Brown Tractor Forum
Topic: 990 implematic hydraulic oil leak.
Replies: 6
Views: 128

Re: 990 implematic hydraulic oil leak.

An o-ring sounds great! Sound like a fairly easy fix! :D When I replaced the lift latch seal, the originally specified 3/4" size O ring leaked so I went for the metric equivalent diameter which is ever so slightly smaller and tighter on the shaft. The section of the O ring was slightly thicker than...
by philedge
Fri Apr 02, 2021 1:44 pm
Forum: David Brown Tractor Forum
Topic: 990 Selectamatic Gearbox, how noisy is too noisy?!
Replies: 29
Views: 684

Re: 990 Selectamatic Gearbox, how noisy is too noisy?!

mike_cullum wrote:
Thu Apr 01, 2021 9:21 pm
I am currently running a Super Tractor Universal Oil, which is 15w40 I believe, as this is what I put in the back ends of my other tractors.
If youve already got SUTO/STUO that would be whats recommended and would save carrying alternative grades??
by philedge
Fri Apr 02, 2021 1:37 pm
Forum: David Brown Tractor Forum
Topic: 990 Selectamatic Linkage Geometry
Replies: 52
Views: 1022

Re: 990 Selectamatic Linkage Geometry

The manual has the nominal length of the lift arms at 19" so possibly another couple of inches height to be had over the height Tom has measured with lift arms at 20"?? See what height/length Mike comes back with
by philedge
Wed Mar 31, 2021 8:14 am
Forum: David Brown Tractor Forum
Topic: 990 Selectamatic Gearbox, how noisy is too noisy?!
Replies: 29
Views: 684

Re: 990 Selectamatic Gearbox, how noisy is too noisy?!

Where abouts is the return port? Its on top of the back axle below your left hip, 8" or so to the rear of the 3 way valve. Its shown in the manual. This is the port you want to be testing as its furthest from the selectamatic valve and will prove more of the pipe work than the port on the camels hu...
by philedge
Tue Mar 30, 2021 6:54 pm
Forum: David Brown Tractor Forum
Topic: Can an amateur fix a blown 885 head gasket/piston rings?
Replies: 4
Views: 162

Re: Can an amateur fix a blown 885 head gasket/piston rings?

Head gasket is straight forward needing only basic imperial tool kit plus a torque wrench. If you want to replace valve stem seals while the head us off, youll need a valve spring compressor. Piston rings are a bit more involved. Is it running? Ive got half a tube of wellseal you can have for the he...