This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Allis Chalmers > Construction and other equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


HD-11 cylinder head issues...
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
05ecofire View Drop Down
Bronze Level
Bronze Level
Avatar

Joined: 17 May 2020
Location: WV
Points: 26 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 05ecofire Quote  Post ReplyReply Direct Link To This Post Topic: HD-11 cylinder head issues...
    Posted: 08 Jun 2020 at 2:31pm
I recently bought a 1960 HD11 that has been setting in the woods for about 20 years. Tractor number HD11E-6031 engine serial# 11-605. I tore the engine apart to free seized pistons. After freeing engine and prepping for reinstalling the top end. While cleaning cylinder head I found some large craters in between the valves. The do not look like a typical crack.I have never seen anything like them before (see attached. Was hoping someone could give me some advice on what the heck it is and where to go from here. Also does anyone know what material exactly the head is made out of. Trying to see if its possible to repair. Thank you for all the help
Screenshot_20200608-152243_Gallery.jpg

Screenshot_20200608-152258_Gallery.jpg

Screenshot_20200608-152324_Gallery.jpg

Screenshot_20200608-152336_Gallery.jpg

Edited by 05ecofire - 08 Jun 2020 at 2:33pm
Back to Top
Sponsored Links


Back to Top
gandl2123 View Drop Down
Bronze Level
Bronze Level
Avatar

Joined: 06 Oct 2022
Location: Augusta, GA
Points: 1 		Post Options Post Options   Thanks (0) Thanks(0)   Quote gandl2123 Quote  Post ReplyReply Direct Link To This Post Posted: 06 Oct 2022 at 10:31am
That almost to me looks like it was designed that way.  If it has that on every cylinder it would be by the factory for some reason.  I'm in the market and looking for a 74320689 Cylinder head for my 11000 series HD11EP Dozer.  Tks  Greg
Back to Top
DMiller View Drop Down
Orange Level Access
Orange Level Access


Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 31116 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 06 Oct 2022 at 1:15pm
Appears to me as previous repairs, Peened in spots, welded others.  Check with Chapin Cyl Head, Chapin IL as they could lead you on the right path here.
Back to Top
Doughd16b View Drop Down
Bronze Level
Bronze Level
Avatar

Joined: 01 Sep 2022
Location: Nc
Points: 28 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Doughd16b Quote  Post ReplyReply Direct Link To This Post Posted: 06 Oct 2022 at 2:50pm
I have a complete engine minus the injection pump out of an 11ep. located in eastern NC 252 916 2927
Back to Top
doctorcorey View Drop Down
Orange Level
Orange Level
Avatar

Joined: 17 Jul 2011
Location: S. KC Missouri
Points: 589 		Post Options Post Options   Thanks (0) Thanks(0)   Quote doctorcorey Quote  Post ReplyReply Direct Link To This Post Posted: 06 Oct 2022 at 10:09pm
Looks like old crack welds, the grooves are probably leak areas that eroded from 'blowtorch' effect. Curious, what did the valve faces look like?Tongue
Semper Fi USMC    1958 HD6G, 1959 MF 203 loader, 1960 Case 420B Backhoe, MF 65 Tractor/Loader Diesel
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.078 seconds.


Help Support the
Unofficial Allis Forum