Search found 2238 matches

by db2d
Wed Aug 12, 2020 10:45 pm
Forum: DBTC Forum
Topic: I just bought what?
Replies: 65
Views: 1891

Re: I just bought what?

Clockwise— towards the block
by db2d
Tue Aug 11, 2020 10:51 am
Forum: DBTC Forum
Topic: Manifold leak-off pipe.
Replies: 11
Views: 293

Re: Manifold leak-off pipe.

I have looked at three tractors and they all have blanking pugs fitted unfortunately.
by db2d
Fri Aug 07, 2020 1:38 pm
Forum: DBTC Forum
Topic: 880 Selectamatic safety starter switch
Replies: 23
Views: 457

Re: 880 Selectamatic safety starter switch

cobbaddog— I am well aware of the posters problem and the original switch is very similar to the brake light switch used on DB tractors. People have adapted and used these switches for years.
by db2d
Thu Aug 06, 2020 6:09 am
Forum: DBTC Forum
Topic: 880 Selectamatic safety starter switch
Replies: 23
Views: 457

Re: 880 Selectamatic safety starter switch

Brake light switch for DB tractors available from www.davidbrownparts.com
by db2d
Wed Aug 05, 2020 2:00 pm
Forum: DBTC Forum
Topic: Manifold leak-off pipe.
Replies: 11
Views: 293

Re: Manifold leak-off pipe.

It has to be a three cylinder engine if it’s an 880, the four cylinder 880 does not have one. There are two different pipes depending on the dynamo output.
If you PM your email address I will take a picture an send it to you .
by db2d
Sun Aug 02, 2020 7:42 pm
Forum: DBTC Forum
Topic: David Brown 850 final drive
Replies: 5
Views: 196

Re: David Brown 850 final drive

There are very few interchangeable parts between the Cropmaster/25 and 30 reduction units. The Cropmaster series has A and B type units with a combination of metric and imperial size bearings. There is only one bearing that is interchangeable with the 850 reductions.
by db2d
Sat Aug 01, 2020 6:14 pm
Forum: DBTC Forum
Topic: 990 engine knock
Replies: 12
Views: 274

Re: 990 engine knock

Check the thermostart, it could be leaking fuel into the manifold but this usually causes smoking.
Try a basic crankshaft test by rocking the crankshaft pulley manually with a low gear selected.
by db2d
Tue Jul 28, 2020 8:25 pm
Forum: DBTC Forum
Topic: 880 selectamatic hydraulic by pass filter
Replies: 12
Views: 589

Re: 880 selectamatic hydraulic by pass filter

The only tractor not to have the filter was the very early 770 and these tractors should have been upgraded during warranty. The manuals that are floating around on eBay and other places are in many cases not complete, they should have updated amendments and be read in conjunction with the service b...
by db2d
Tue Jul 28, 2020 5:19 pm
Forum: DBTC Forum
Topic: 880 selectamatic hydraulic by pass filter
Replies: 12
Views: 589

Re: 880 selectamatic hydraulic by pass filter

There should be a block under the bypass filter with provision for a return pipe connection.
by db2d
Sat Jul 25, 2020 11:05 pm
Forum: DBTC Forum
Topic: Erratic Power Loss on hills - 990 Selectamatic
Replies: 10
Views: 328

Re: Erratic Power Loss on hills - 990 Selectamatic

There are several versions of the 990, can you please supply a picture or tractor number.
by db2d
Fri Jul 24, 2020 9:22 pm
Forum: DBTC Forum
Topic: 780 Final Drives.
Replies: 5
Views: 213

Re: 780 Final Drives.

Without actually seeing the location of the holes I think they are for the stabiliser bars. The reduction housings are identical and can be assembled to suit either side.
by db2d
Fri Jul 24, 2020 9:16 pm
Forum: DBTC Forum
Topic: 780 Final Drives.
Replies: 1
Views: 97

Re: 780 Final Drives.

Without actually seeing the location of the holes I think they are for the stabiliser bars. The reduction housings are identical and can be assembled to suit either side.
by db2d
Thu Jul 23, 2020 7:22 am
Forum: DBTC Forum
Topic: 885 misfire at low idle
Replies: 15
Views: 405

Re: 885 misfire at low idle

It is not possible to service the injectors without the necessary, specific, equipment.

I have sent you a PM
by db2d
Wed Jul 22, 2020 12:57 pm
Forum: DBTC Forum
Topic: 885 misfire at low idle
Replies: 15
Views: 405

Re: 885 misfire at low idle

You can not just replace an old nozzle for a new one. The spring pressure has to be released before removing the old nozzle and reset afterwards using a special injector tester. It is not a difficult task but knowledge is required.