Search found 191 matches

by rid54
Fri Jan 03, 2020 8:14 pm
Forum: DBTC Forum
Topic: 885 retard screw
Replies: 15
Views: 420

Re: 885 retard screw

It might be useful to know whether the engine keeps running OK if you do not screw out the retard (blocking) screw, and that the erratic running is indeed a direct result of unclamping the auto-advance device. If so, there is a timing error at some point. If I understand correctly, the screw in ques...
by rid54
Fri Jan 03, 2020 11:27 am
Forum: DBTC Forum
Topic: Help if possible please.
Replies: 36
Views: 792

Re: Help if possible please.

Re: Klippan (possibly off-topic):
https://www.maskinisten.net/viewtopic.php?t=8399
They made cabs, possibly even for David Brown. Pics a bit down the page, otherwise swedish text.
by rid54
Thu Jan 02, 2020 5:38 pm
Forum: DBTC Forum
Topic: Help if possible please.
Replies: 36
Views: 792

Re: Help if possible please.

The cab, as can be viewed in the pics, have some similarities to the cab fitted to my 880; the profile of the roof, shape of the door frames and such. I think that the cab on my tractor is made by a company that branded their products "Klippan", and I think it is a safety cab (NOT sure about this). ...
by rid54
Wed Dec 18, 2019 8:57 pm
Forum: DBTC Forum
Topic: Case 990 selectamatic
Replies: 2
Views: 216

Re: Case 990 selectamatic

Instruments and warning lights shouldn't require more than 1-2 Ampères, probably significantly less when lights are all out. Edit: In this thread https://dbtc.co.uk/phpBB3/viewtopic.php?f=1&t=18437 you can find a link to a relevant document about the electric system: ( https://drive.google.com/drive...
by rid54
Tue Dec 17, 2019 8:05 pm
Forum: DBTC Forum
Topic: Merry Christmas
Replies: 8
Views: 394

Re: Merry Christmas

Best greetings to all from Sweden as well!
by rid54
Tue Dec 17, 2019 1:53 pm
Forum: DBTC Forum
Topic: Voltage Regulator / Dynamo
Replies: 16
Views: 607

Re: Voltage Regulator / Dynamo

17 V is never a good voltage for a 12 V system - the regulator fails in some way. One of the terminals on the regulator must be the sensing input (to tell the regulator about the system voltage), are all connections there tight and secure, no loose joints or such? Is there a D- connector and a cable...
by rid54
Fri Dec 06, 2019 9:32 pm
Forum: DBTC Forum
Topic: 90 series temperature gauges
Replies: 12
Views: 465

Re: 90 series temperature gauges

Classic diesel engines go through a lot of (cold) air even at idle - there is no intake air metering. All this cold air cools the engine, and an idling diesel will probably not reach thermostat opening heat at all. As has been said, only at high power output the engine will heat up enough to make th...
by rid54
Wed Dec 04, 2019 9:32 pm
Forum: DBTC Forum
Topic: 30C Diesel Starter Motor
Replies: 7
Views: 340

Re: 30C Diesel Starter Motor

The "bendix" is the starter motor gear, and it is normally moved into position by the solenoid pulling the gear fork against a return spring. There is also (normally) a "freewheel" or one-way clutch, that allows the starter motor gear to move freely, when the engine starts, as to unload it, and allo...
by rid54
Fri Nov 22, 2019 9:42 am
Forum: DBTC Forum
Topic: 1494 overheating
Replies: 8
Views: 471

Re: 1494 overheating

There is no absolute connection beween overheating and a cracked head. The first things to check are fluid level and flow. Are hoses OK? Sludge in cooling jackets? Water pump actually pumping the water? If there is a crack in the cylinder head, there will be some gas leakage into the coolant, and th...
by rid54
Sat Nov 02, 2019 3:31 pm
Forum: DBTC Forum
Topic: Electrics
Replies: 4
Views: 376

Re: Electrics

Something is obviously amiss here. The warning lights are all fed with +12 V when ignition switch is in the "run" position. They should all glow "brightly" at that point, as long as the engine is not started. With ignition turned "off", they should all go out. The lamps are grounded by their respect...
by rid54
Wed Oct 30, 2019 10:11 am
Forum: DBTC Forum
Topic: Injection Pump Inlet Filter
Replies: 24
Views: 1737

Re: Injection Pump Inlet Filter

The feed pressure from the lift pump is determined by the return spring in the lift pump, the status of the filters, and the flow ratio through the injection pump. Unless the lift pump is bad or the filters clogged, the pressure itself should be good enough for the injection pump to work on. The ret...
by rid54
Sat Oct 26, 2019 5:08 pm
Forum: DBTC Forum
Topic: Case 1494 Alternator
Replies: 3
Views: 362

Re: Case 1494 Alternator

The voltage across a "12 V battery" in good condition is around 12.6 V when it is in a "neutral" environment (no charge, no load). The "ALT", or charge warning light, goes out when the alternator can supply itself with excitation voltage, that is when it has "woken up", so to speak; it gives no info...
by rid54
Sun Oct 20, 2019 4:11 pm
Forum: DBTC Forum
Topic: Ruined Fuel - 885
Replies: 5
Views: 503

Re: Ruined Fuel - 885

On my 880, there is a smallish metal net inside the lift pump. Check and clean if there is one in yours. Try blowing backwars in the fuel line from the lift pump into the tank. See where bubbles appear. If there is a blockage it should be evident. If there is a shutoff valve, perhaps the passages in...
by rid54
Wed Oct 09, 2019 3:27 pm
Forum: DBTC Forum
Topic: Injection Pump Inlet Filter
Replies: 24
Views: 1737

Re: Injection Pump Inlet Filter

If you get a nice flow into the injection pump by turning the engine, indeed the lift pump and the filters should be OK. In that case I would suspect that the final filter in the injection pump inlet actually does need inspection. Not having access to full info, I would nevertheless assume that part...
by rid54
Tue Sep 17, 2019 2:41 pm
Forum: DBTC Forum
Topic: 1390 Starter Problem
Replies: 4
Views: 438

Re: 1390 Starter Problem

If possible, measure the voltage on the "motor side" (not the battery side) of the solenoid contacts as you try to start. If the voltage is >10 V but the starter is sluggish or not turning at all, you may have problems with the starter motor brushes. If the voltage is < 6 V, the solenoid contacts ar...