1490 slow starting

The place to discuss all matters relating to David Brown Tractors. You will need to register your user name before you can post. If you have already registered could you please make sure that your location details have been completed. Go to My Account in the Main Menu on the left, and then go into "Edit Your Information" and complete your location details. Give the Country (and State/Province if you wish) if outside the U.K. County if within the U.K. Location details helps other members if you need spares, technical advice, or the nearest practical help.

DISCLAIMER -

David Brown Tractor Club Ltd
Forum/website Disclaimer

1. This [forum/website/chat room] and the advice and opinions expressed herein is not a solution for mechanical, electrical, valuations, other problems, breakdowns or issues experienced in relation to the vehicles referenced.

2. If reliance is thought to be placed on any of the information guidance or input provided such information will be expressly confirmed as appropriate to be relied upon.

3. In the absence of any such confirmation no reliance should be suggested or inferred.

4. Members must not disclose information to 3rd parties in anticipation that reliance will be given by non-members.

5. Non-members must not purport to give advice on behalf of David Brown Tractor Club.

6. If you or someone you know is experiencing difficulties or repeated breakdowns you must seek assistance for an appropriately qualified expert who holds themselves out as such.

7. Any comments are free of charge and made or posted on an ex gratia basis. No member or non-member may advertise their professional services

Any user inactive for more than 3 months will automatically be deactivated, please contact admin@dbtc.co.uk if you would like to be reactivated.

Please be aware that your user name and entered location can be seen by all members. We only store information you have entered which is your email address and username, your IP is also stored, we have no access to private passwords.

If you do not agree with your information being stored, please do not register an account, If you wish to unsubscribe at any time please email admin@dbtc.co.uk giving your username.

Amended 27/10/18

Moderators: Segrie61, admin

Post Reply
User avatar
michael1490
Posts: 16
Joined: Sun Aug 23, 2009 10:47 pm
Location: ireland

1490 slow starting

Post by michael1490 » Sun Dec 22, 2013 1:48 pm

Now that the weather has gone cold my 1490 is very hard started when cold. last spring I put in another new battery , hi tourge starter but it is still slow turning over when cold :twisted:
Top
User avatar
ollek
Posts: 3907
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

RE: 1490 slow starting

Post by ollek » Sun Dec 22, 2013 2:40 pm

Firstly, what oil do you have in the engine and what size battery do you use? Cold climate asks for 10W-30 oil and a as big as possible battery for the battery tray. Also look for a battery with high cold crank amperage. And then, look for possible contact problems in the cables from the battery to the starter motor (both positive and ground side). If some of the connections are hot when the starter motor is working, you will have to clean out the contact faces at that point. Then, keep the thermostart (I hope your tractor has one) in operation for at least 30 seconds before you start to crank the engine. When the engine runs, but is still smoking, throttle back to idle but do not stop using the thermostart before the engine runs a little bit cleaner.
Top
User avatar
case-ih1594
Posts: 1065
Joined: Sun May 12, 2013 10:38 am
Location: Preston

RE: 1490 slow starting

Post by case-ih1594 » Sun Dec 22, 2013 3:03 pm

First thing would be to ensure the tractor is fully serviced - such as new engine oil, filter, air filters, Diesel filters. Make sure the Diesel lift pump is pumping well and there are no blockages. Make sure the valves tappets are set correctly. Next thing is some money spending on it. Ideally new rings, injectors, injector pump, new valves. Cold weather tests engines that are getting past their best, buying a bigger battery only buys you some time and does not hide the fact that the engine is in need of some attention.
Top
User avatar
michael1490
Posts: 16
Joined: Sun Aug 23, 2009 10:47 pm
Location: ireland

Post by michael1490 » Sun Dec 22, 2013 3:21 pm

fully serviced diesel and oil 10 30 oil, head pistons rings shaft injectors and pump ok just very slow to turn over in the cold Not spending any more on it.
Top
User avatar
case-ih1594
Posts: 1065
Joined: Sun May 12, 2013 10:38 am
Location: Preston

Post by case-ih1594 » Sun Dec 22, 2013 3:27 pm

Ensure all the battery contacts are in good, clean condition. Make sure the positive lead is in good order and ends clean. The negative wire should be fastened to the chassis as the original idea of it being fastened to the air filter tray area is not ideal after 30 years of rusting. Often people directly connect the negative cable to the starter motor. Also the starter motor should be earthed itself with a cable/thick wire. If doing this does not improve the situation then battery off and make a New Year's resolution to recondition it.
Top
User avatar
db2d
Posts: 2162
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

RE: 1490 slow starting

Post by db2d » Sun Dec 22, 2013 3:28 pm

When was the starter motor serviced?
Top
User avatar
ollek
Posts: 3907
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

RE: 1490 slow starting

Post by ollek » Sun Dec 22, 2013 3:38 pm

One more time, what are the specifications for the battery you are using? Are all the contact surfaces between the battery and the starter motor clean and tight?
Top
User avatar
michael1490
Posts: 16
Joined: Sun Aug 23, 2009 10:47 pm
Location: ireland

Post by michael1490 » Sun Dec 22, 2013 4:23 pm

starter was new going to check connections once more and try a different battery
Top
User avatar
bedwards1966
Posts: 885
Joined: Sun Mar 07, 2010 10:36 pm
Location: North Yorkshire

Post by bedwards1966 » Sun Dec 22, 2013 4:31 pm

Do you have a voltmeter? If so you should test the battery under load (i.e with a helper operating the starter) and also check the voltage drop from the battery terminal to the starter motor terminal - and the earth. Then you can pinpoint where the power is being lost.
Top
User avatar
case-ih1594
Posts: 1065
Joined: Sun May 12, 2013 10:38 am
Location: Preston

Post by case-ih1594 » Sun Dec 22, 2013 6:16 pm

Big 'thank you' to all the answers by the way ! :roll:
Top
eddiem
Posts: 77
Joined: Sun Oct 14, 2007 12:51 pm
Location: Ireland

Post by eddiem » Sun Dec 22, 2013 7:15 pm

Another thing to try before you try and start the 1490 is - disconnect the plug going into the altenator. The reason for this is if the brushes in the altenator are grounded they will be drawing a fair load from the battery which means the full power from the battery wont be going to the starter.
I had that problem on my 1494 not so long ago. I got the alternator refurbished and problem solved.
Top
eddiem
Posts: 77
Joined: Sun Oct 14, 2007 12:51 pm
Location: Ireland

Post by eddiem » Sun Dec 22, 2013 7:16 pm

case-ih1594 wrote:Big 'thank you' to all the answers by the way ! :roll:
Lol :) :)
Top
User avatar
michael1490
Posts: 16
Joined: Sun Aug 23, 2009 10:47 pm
Location: ireland

Post by michael1490 » Sun Dec 22, 2013 7:40 pm

yes thanks for all the replies
Top
User avatar
michael1490
Posts: 16
Joined: Sun Aug 23, 2009 10:47 pm
Location: ireland

Post by michael1490 » Mon Dec 23, 2013 11:01 am

running a few checks but I want to checks is the battery good enough numbers are 643
680cca (SAE)
96aH (@20HR)
Thanks again
Top
eddiem
Posts: 77
Joined: Sun Oct 14, 2007 12:51 pm
Location: Ireland

Post by eddiem » Mon Dec 23, 2013 11:06 am

battery in my 1494 is a 663 I don't think the 643 is the correct battery for a 1490

750 cca

105 aH

these are the ratings on my 663 battery
Top
Post Reply

Return to “DBTC Forum”

Who is online

Users browsing this forum: No registered users and 24 guests