Search found 90 matches

by tractorfan
Tue Apr 07, 2020 5:36 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Possible Overheat
Replies: 9
Views: 551

Re: 880 Selectamatic Possible Overheat

All sorted then! Thanks for your help!
by tractorfan
Tue Apr 07, 2020 1:26 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Possible Overheat
Replies: 9
Views: 551

Re: 880 Selectamatic Possible Overheat

Update (and thank you very much for all your help). I removed the temperature gauge (manufactured by AC) from my 770 and fitted it to the 880. This gauge had a terminal for earth so I connected it to the chassis (strangely the previous gauge didn't have this option). I've just done two hours' of gra...
by tractorfan
Sun Apr 05, 2020 8:27 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Dynamo
Replies: 17
Views: 1970

Re: 880 Selectamatic Dynamo

Hello all,

I'm now looking at this issue again, and am now convinced that the dynamo's faulty. I bridged the D and F terminals and measured the output at D to be 0.4v

This dynamo is a Prestolite.

Thank you.
by tractorfan
Sun Apr 05, 2020 4:10 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Possible Overheat
Replies: 9
Views: 551

Re: 880 Selectamatic Possible Overheat

Thanks for your replies. I did the test again from cold (well, it's been an hour or two since I last did the test, so from lukewarm). I took the block and head readings from the n/s. After 10 mins at 800rpm; gauge pointer is in 'Hot'; top hose is 30 deg C, bottom hose is 20 deg, block is 55-60 deg a...
by tractorfan
Sun Apr 05, 2020 2:52 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Possible Overheat
Replies: 9
Views: 551

880 Selectamatic Possible Overheat

The newly-fitted temperature gauge to this tractor is showing that the tractor is getting hot in a short space of time. I noticed it when harrowing - I'd barely done two rows and the needle was in 'Hot'. I've fitted a brand new thermostat, but the problem continues. The gauge needle shoots to 'Hot' ...
by tractorfan
Sun Apr 05, 2020 2:42 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Push-Pull Fuel Tap Seal
Replies: 5
Views: 357

Re: 880 Selectamatic Push-Pull Fuel Tap Seal

Done! Thank you very much!
by tractorfan
Sat Apr 04, 2020 5:26 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Push-Pull Fuel Tap Seal
Replies: 5
Views: 357

880 Selectamatic Push-Pull Fuel Tap Seal

Does anyone know the process for renewing the seal on the push-pull fuel tap? I have the cork seals ready; is it a fiddly job?

Many thanks
by tractorfan
Sat Apr 04, 2020 5:19 pm
Forum: DBTC Forum
Topic: Wear in 880 Selectamatic Linkage
Replies: 6
Views: 755

Re: Wear in 880 Selectamatic Linkage

Thanks, everyone. This is a great help!
by tractorfan
Sat Feb 08, 2020 10:45 am
Forum: DBTC Forum
Topic: Wear in 880 Selectamatic Linkage
Replies: 6
Views: 755

Wear in 880 Selectamatic Linkage

As Spring approaches, my mind turns to doing a few jobs to the 880 and I've remembered about a particular problem in the linkage. At the tractor end of the link arms there's a pin that connects the arm to the chassis, and the receiving hole in the chassis has worn significantly and therefore there's...
by tractorfan
Sat Aug 31, 2019 11:56 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Dynamo
Replies: 17
Views: 1970

Re: 880 Selectamatic Dynamo

Thanks for your reply. When the tractor passes 1300RPM the charging light extinguishes. As soon as the tractor returns to 1300RPM the light comes on again.

This new dynamo is labelled as 11amp. Does this sound correct for the tractor?
by tractorfan
Sat Aug 31, 2019 11:56 am
Forum: DBTC Forum
Topic: 880 Selectamatic Dynamo
Replies: 17
Views: 1970

Re: 880 Selectamatic Dynamo

Just to keep you updated, I bought a brand new dynamo and regulator, polarised the dynamo, and fitted them both, but the charging light still won’t extinguish until 1300RPM. I removed an original dynamo from a 770, fitted it to the 880 and all was well. I removed that, re-fitted the new dynamo and t...
by tractorfan
Tue Jul 02, 2019 9:14 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Dynamo
Replies: 17
Views: 1970

Re: 880 Selectamatic Dynamo

Thanks for the replies. The fan belt’s at the correct tension and the pulley was removed from the previous dynamo and put onto the new one. The problem with the original dynamo is that it seized while the tractor was working and the first I noticed was that the charging light came on and I saw the s...
by tractorfan
Mon Jul 01, 2019 7:16 pm
Forum: DBTC Forum
Topic: 880 Selectamatic Dynamo
Replies: 17
Views: 1970

880 Selectamatic Dynamo

I've fitted a new dynamo but now the charging light will only begin to extinguish at 1300rpm and will be fully-extinguished at 1600rpm. Any ideas why this is happening? On the previous dynamo the charging light would have disappeared at 800/900rpm. Many thanks.
by tractorfan
Sat May 18, 2019 12:14 pm
Forum: DBTC Forum
Topic: Cropmaster Fuel Issue
Replies: 2
Views: 676

Cropmaster Fuel Issue

I have a 1948 Cropmaster petrol/tvo. Last summer I changed the cork seal in the changeover tap due to a leak. Since then, whenever the tractor starts to pull uphill the engine stops. The tractor will then start again quite easily on the handle and will progress again up the hill for a few yards unti...
by tractorfan
Mon Mar 25, 2019 4:33 pm
Forum: DBTC Forum
Topic: Three-way Selector Valve Leak
Replies: 7
Views: 1602

Re: Three-way Selector Valve Leak

Solved! The o-ring was on the plunger.

Thank for your replies.