Search found 210 matches

by rid54
Thu May 11, 2017 1:40 pm
Forum: DBTC Forum
Topic: Starter Motor Burnt Out ?
Replies: 3
Views: 1095

Re: Starter Motor Burnt Out ?

Good for you! However, if the starter has been whirring on for like 20 minutes, it is a fairly big chunk bitten out of its service life. It might be a good idea, to do an overhaul (or let someone do it). The bearings are often just bronze sleeves (bushings) and may require new lubrication, and the b...
by rid54
Wed May 10, 2017 11:04 am
Forum: DBTC Forum
Topic: Starter Motor Burnt Out ?
Replies: 3
Views: 1095

Re: Starter Motor Burnt Out ?

Switch everything off. Lift one of the battery terminals off the pole piece, then touch the pole piece quickly with the terminal - any sparks? If no, check if there is any current flowing even though everything is "off", by using an ammeter. Anything over 100mA is a problem and needs checking. If yo...
by rid54
Wed Apr 19, 2017 6:14 am
Forum: DBTC Forum
Topic: 880 in Sweden
Replies: 4
Views: 1862

Re: 880 in Sweden

Thanks! That is about the same technique used for "normal" non-synchromesh gearboxes, I'll try that some day. My tractor has a foot throttle, so it should be possible.
by rid54
Sun Apr 16, 2017 4:27 pm
Forum: DBTC Forum
Topic: 880 in Sweden
Replies: 4
Views: 1862

Re: 880 in Sweden

Thank you ollek! I was not thinking about dragracing ( :) ) as much as hauling a payload such as a heavy trailer (like a caravan) for some distance. It seems improper to have to start in highest gear and using clutch slip more than would be necessary if it were possible to start in low gear and upsh...
by rid54
Sun Apr 16, 2017 8:48 am
Forum: DBTC Forum
Topic: 880 in Sweden
Replies: 4
Views: 1862

880 in Sweden

Hi. I have an 880 Selectamatic, 3-cyl. I suppose it is a "Livederive" system, since the PTO is independent of the drive train clutch. I am not an experienced tractor user. The tractor is used mainly for lifting and moving things very short distances and for running a generator off the PTO when I nee...
by rid54
Sun Mar 26, 2017 5:57 pm
Forum: DBTC Forum
Topic: dB 8885 industrial stops for no reason
Replies: 9
Views: 2897

Re: dB 8885 industrial stops for no reason

What kind of injection pump is on that tractor; distributor (CAV) or inline? My 880 (with a distributor pump) had problems that seem to resemble yours. I went through all filters in the circuit, and there are a few... In the suction pump (at least on my tractor) is a circular metal net. That one had...
by rid54
Mon Mar 20, 2017 9:24 pm
Forum: DBTC Forum
Topic: 995 Battery
Replies: 2
Views: 1195

Re: 995 Battery

The general idea seems to be to use as big a battery (with the right voltage) as the physical situation allows and, if applicable, go for high CCA. Diesels want high CCA (and battery stamina).
by rid54
Wed Mar 01, 2017 7:55 pm
Forum: DBTC Forum
Topic: need a glow plug
Replies: 25
Views: 5769

Re: need a glow plug

My 880 3-cyl has a Thermostart (Sweden). It works very well, as far as I can judge. Seems a bit less brutal than ether.
by rid54
Tue Feb 28, 2017 5:08 pm
Forum: DBTC Forum
Topic: 990 oil in coolant
Replies: 29
Views: 7238

Re: 990 oil in coolant

If the spring of the relief valve has "set" too much, or the valve parts do not seal properly, the relief valve can cause low-ish oil pressure, by relieving oil pressure unnecessarily... But just tighetning it is not much help if there are other problems. But it spring length is below specs, it is s...
by rid54
Tue Feb 28, 2017 5:00 pm
Forum: DBTC Forum
Topic: Tractormeter drive
Replies: 3
Views: 1411

Re: Tractormeter drive

Most engines have a crankcase ventilation system. The older systems are "primitive", in that they only consist of a ventilator tube from the crankcase or from the rocker cover. Under no circumstances should the crankcase be pressurized. You might want to check the parts in the ventilation system for...
by rid54
Sun Feb 05, 2017 10:18 am
Forum: DBTC Forum
Topic: 990 oil in coolant
Replies: 29
Views: 7238

Re: 990 oil in coolant

The momentary "thickness" (viscosity) of a mono-grade oil will vary with engine temperature, so keeping the engine cool would make sense in that situation. Cold start may be a bit harder and the oil will be sluggish to reach the lubrication points. I'd much prefer a 20W50 multigrade oil or something...
by rid54
Wed Feb 01, 2017 9:50 am
Forum: DBTC Forum
Topic: 990 oil in coolant
Replies: 29
Views: 7238

Re: 990 oil in coolant

Not wishing to take a fight with anyone, I'd still like to mention, that renewing the bearing shells can improve oil pressure. The surface coating (the metal actually forming the bearing surface against the crank journal) is softer than the steel. I have had similar problems with old LandRover engin...
by rid54
Tue Jan 31, 2017 7:07 pm
Forum: DBTC Forum
Topic: Injection timing DB 880
Replies: 3
Views: 1255

Re: Injection timing DB 880

Thank you for the input! Seems I can leave well enough alone....
by rid54
Sat Jan 28, 2017 9:55 pm
Forum: DBTC Forum
Topic: Injection timing DB 880
Replies: 3
Views: 1255

Injection timing DB 880

Hi. I have an 880 from the seventies. One day during a test run of a PTO-driven generator (no load) the engine just stalled and refused to cooperate further. Turned out to be a seized injection pump. The mishap included a severed drive shaft from the skew gear. New (rebuilt) pump + drive shaft insta...
by rid54
Wed Jan 11, 2017 2:49 pm
Forum: DBTC Forum
Topic: 1965 David Brown 990 Backhoe loader lost all drive
Replies: 38
Views: 7057

Re: 1965 David Brown 990 Backhoe loader lost all drive

If this were a car (which of course i isn't), I'd be asking questions about differential gears and drive shafts and splined joints... Can you verify that you have soild drive from the wheels to the gearbox input shaft (with any gear engaged)? Block one wheel, turn the other - gearbox input shaft sho...