780 Cylinder head core plug

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
Henry&Saly
Posts: 5
Joined: Tue Jan 29, 2019 7:10 pm
Location: Shropshire

780 Cylinder head core plug

Post by Henry&Saly » Sun Feb 10, 2019 4:33 pm

Hi,

Thanks for the responses on my introduction post. The 780 is now fully washed off and running up well!

I have however found a small water leak on the back of the cylinder head from what appears to be one of two core plugs!

I have had a look on the Case IH online parts directory and it has come back with this

K623810 PLUG - welch, 1 in. x 2 (Superseded by part no 41-16)

Am i correct in thinking that i just need a 1 inch core plug and replace?

Henry

User avatar
db2d
Posts: 1970
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: 780 Cylinder head core plug

Post by db2d » Sun Feb 10, 2019 4:52 pm

Yes the diameter is one inch but the updated version I believe is stainless steel. I recommend fitting a stainless one and then you can forget about it.

Henry&Saly
Posts: 5
Joined: Tue Jan 29, 2019 7:10 pm
Location: Shropshire

Re: 780 Cylinder head core plug

Post by Henry&Saly » Sun Feb 10, 2019 5:02 pm

Thanks for this.

Any advice on getting the old ones out and the new ones in?
H

User avatar
db2d
Posts: 1970
Joined: Fri Feb 24, 2012 10:01 pm
Location: Monmouthshire

Re: 780 Cylinder head core plug

Post by db2d » Sun Feb 10, 2019 5:24 pm

Puncture it in the centre and lever it out with a bar or strong screw driver.
Clean the recess well and coat with jointing compound.
Fit new core plug ( domed side out ) and then hit the centre of the plug to expand it.
Mild steel plugs are perfectly ok and will last indefinitely if the antifreeze has inhibitors and is changed periodically as recommended by the manufacturers.
The plugs are available from davidbrownparts.com

User avatar
cobbadog
Posts: 402
Joined: Tue Oct 11, 2011 6:18 am
Location: beautiful Coopernook NSW. near Taree. NSW. Australia

Re: 780 Cylinder head core plug

Post by cobbadog » Mon Feb 11, 2019 2:54 am

I use the stainless steel welsh plug in the hard to get to places and mild steel ones in the easy places. Then the steel ones can act as a sacrificial annode if your coolant/anti freeze is not correct and the steel gets eaten away instead of the cast iron.

Post Reply

Who is online

Users browsing this forum: No registered users and 20 guests