Search found 122 matches

by jules
Thu Aug 02, 2018 3:49 am
Forum: DBTC Forum
Topic: 1394 injectors
Replies: 7
Views: 1428

Re: 1394 injectors

Job completed and I'm happy with the results. The tractor now pulls a gear or two higher for the same load. Hard to describe but the while the engine felt ok before it now feels and runs as though it's new. I bought the tractor with 2500 hrs on it and I don't think the injectors had ever been change...
by jules
Fri Jul 20, 2018 2:34 am
Forum: DBTC Forum
Topic: 1394 injectors
Replies: 7
Views: 1428

Re: 1394 injectors

Work still in progress but a couple of thoughts that might help others ... 1) The injectors are hard to remove because over time dust and dampness allow cakey rust to form. I made up a pair of pullers [pushers actually] and even so one of the injectors took the best part of an afternoon to get out. ...
by jules
Wed Jul 18, 2018 11:38 pm
Forum: DBTC Forum
Topic: 1394 injectors
Replies: 7
Views: 1428

Re: 1394 injectors

Thanks again ollek. Your advice is most appreciated.

I'll head in to my local diesel workshop and see what they can do. If it turns out that the parts I've bought aren't up to the job I'll do what's best for the tractor.
by jules
Wed Jul 18, 2018 10:14 am
Forum: DBTC Forum
Topic: 1394 injectors
Replies: 7
Views: 1428

Re: 1394 injectors

Thanks db2d and ollek. The 1.2mm copper washer is a Sparex part but I'll avoid using it. The 0.1 mm shims go between the nozzle nut and the nozzle/injector assembly remain a mystery. I don't have testing equipment but if I assemble the injectors and take them to a service centre [minus the tractor] ...
by jules
Wed Jul 18, 2018 8:17 am
Forum: DBTC Forum
Topic: 1394 injectors
Replies: 7
Views: 1428

1394 injectors

I'm replacing the injectors on my 1394. So far, so good though it's not turning out exactly as described in the manual. Firstly, the injectors specified for the 1394 are Italian OMAP OKLL 97S 8110. The original [I'm fairly sure] injectors fitted to the tractor are CAV BDLL140S6592. The CAV injectors...
by jules
Tue Feb 07, 2017 10:11 pm
Forum: DBTC Forum
Topic: Slightly eccentric?
Replies: 2
Views: 1168

Slightly eccentric?

This "rig" is safely housed in a museum in Canberra Australia. It's a little hard to get an idea of the whole thing from the photos but it's a mobile knife and saw sharpening home on wheels. Somehow I can't quite imagine our traffic authorities allowing it to roam the roads these days :D.
by jules
Mon May 23, 2016 11:37 pm
Forum: DBTC Forum
Topic: 1394 water pump
Replies: 6
Views: 2518

RE: 1394 water pump

On my no-cab model it's possible to remove the belt without removing the "doughnut" coupling. Undo the bolts that are threaded into the fanbelt pulley, [don't bother with the nut/bolt connectors], slide the rubber doughnut assembly forward on the splines and you should have enough space to get the b...
by jules
Thu Apr 21, 2016 11:32 pm
Forum: DBTC Forum
Topic: V belt angle
Replies: 13
Views: 5414

Yes Steve, it does seem that the DB belts are not unusual in their specs. I've had some useful advice from an engineer with one of the major belt manufacturers and the industry standard for 11A and 13A width pulley grooves is 36 degrees. 11A belts are about 10mm wide and 13A are about 12mm wide. The...
by jules
Wed Apr 20, 2016 10:47 pm
Forum: DBTC Forum
Topic: V belt angle
Replies: 13
Views: 5414

Thanks mc. I'll put a little more pressure on the local agent to get hold of the real thing ... should be possible
by jules
Tue Apr 19, 2016 11:25 pm
Forum: DBTC Forum
Topic: V belt angle
Replies: 13
Views: 5414

:), it's not a cost issue manxmac. If I can take one I'll post a photo in a while to try to illustrate what I'm saying but a large part of the problem is the need for frequent adjustment.What I think is happening is that the area of belt in contact with the pulleys is too small, so it wears faster a...
by jules
Tue Apr 19, 2016 2:34 pm
Forum: DBTC Forum
Topic: V belt angle
Replies: 13
Views: 5414

Thanks Steve but I've checked that carefully.

I've had one recommendation from a very experienced dealer to use a Gates 9490 belt. These are a full half inch across the top which is much wider than the AVX10 but there might be logic to it.
by jules
Tue Apr 19, 2016 11:13 am
Forum: DBTC Forum
Topic: V belt angle
Replies: 13
Views: 5414

Thanks manxmac. I might not be using the term "V" belt correctly but I've simply ordered a belt for a 1394 from local suppliers who look in the book and order accordingly. The belts I've been supplied are AVX10 [or before that an AV10X which is probably the same] in 1150 length. These are fractional...
by jules
Tue Apr 19, 2016 6:56 am
Forum: DBTC Forum
Topic: V belt angle
Replies: 13
Views: 5414

Thanks, I guess that's a possibility though this tractor is sub 4,000 hr and an older Dexta I own has done about 3X that without showing the same sort of problems. Visually all the pulley Vs on the DB look clean and straight without any grooving or changes of pitch. A new belt sits at the top of the...
by jules
Tue Apr 19, 2016 4:54 am
Forum: DBTC Forum
Topic: Exhaust noise complaint
Replies: 10
Views: 3735

RE: Exhaust noise complaint

Maybe a truck muffler would be worth a try? There's a loose relationship between the volume of a muffler and the volume of a cylinder, so given you're looking at approx 800cc pots you'd probably need a muffler that's bigger than most of the ones fitted to cars. I don't know what your regulations are...
by jules
Tue Apr 19, 2016 1:20 am
Forum: DBTC Forum
Topic: V belt angle
Replies: 13
Views: 5414

V belt angle

I make these comments about a 1394 fan belt [no cab, no air-con] but they probably apply more generally ... I've had some problems with belt wear on my 1394. Belt life has been about 3 years which is sort of ok but a bit fast for my liking. Also, the belt has needed adjustment more often than you'd ...