DB 990

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
thedoctor
Posts: 6
Joined: Fri May 27, 2016 4:37 pm
Location: USA

DB 990

Post by thedoctor » Sun Sep 25, 2016 1:00 am

Replacing the fuel lift pump and push pin. Unable to remove the push pin, it will only come out about 2/3 of the way. Have tried pulling it out with vise grips with no luck. Have used PB penetrating oil on it with no luck. Acts as if the pin is flared internally. Any suggestion on how to remove this would be appreciated.

User avatar
ollek
Posts: 3796
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

RE: DB 990

Post by ollek » Sun Sep 25, 2016 8:01 am

The pin is flared at the inner end as you suggest. This happens when the camshaft rubs at the end of the pin and the pin wears and the end gets a flare. The only way to get the pin out is to use force so that the thin flare is removed. The pin is not sticking in the bore and penetrating oil will not help. Clamp the pin with the vice grips and use small crow bar to pull the pin out. Knocking on the crow bar will help as this creates strikes on the flare on the end of pin.

User avatar
DB780
Posts: 1628
Joined: Fri Dec 30, 2005 4:06 pm
Location: Lincolnshire

Post by DB780 » Sun Sep 25, 2016 8:18 am

You could also using a slide hammer. Weld a suitable sized nut or bolt depending what is on the end of the slide hammer, that should 'shock' it out.

User avatar
case-ih1594
Posts: 1065
Joined: Sun May 12, 2013 10:38 am
Location: Preston

Post by case-ih1594 » Sun Sep 25, 2016 8:53 am

I know it's a bit drastic, but if it seemed to be absolutely stuck, an option may be to remove the sump pan and have a look up with a torch to see how flared the pin is. It would be annoying to use such force as to damage the casting - which is probably unlikely, but probably possible. I think you can see the pin from the inside.

Post Reply

Who is online

Users browsing this forum: No registered users and 15 guests