D17 series iv head cylinder
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=201292
Printed Date: 04 Nov 2025 at 6:34am
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Topic: D17 series iv head cylinder
Posted By: waw1962
Subject: D17 series iv head cylinder
Date Posted: 11 May 2024 at 11:18am
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uploads/24759/d17_core_plug_2024-05-12_10-43-27.pdf" rel="nofollow - uploads/24759/d17_core_plug_2024-05-12_10-43-27.pdf I've read alot about frost plugs, but when I look at the head from my D17 series 4, there are only two, and they are more like core plugs... not the button type pop in plugs shown and discussed. I can't find new ones online, as I'm in the process of putting a new head gasket it, thought I'd change those too. Any help on these plugs and why are they different than what I find online? Thanks.
Edit... the plugs I took out are about 1-1/2" by 1" and solid.
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Replies:
Posted By: DrAllis
Date Posted: 11 May 2024 at 4:25pm
| AGCO dealership. |
Posted By: waw1962
Date Posted: 11 May 2024 at 4:54pm
| I looked at an AGCO page, pulled up the D17 head parts list. The "core plug" shown is not what I have. I flipped the head over, and drove the two plugs out of the top. They are solid pieces, 1-1/2" long, 1" diameter. Could someone have rebuilt it before, and substituted a solid plug instead of the "cap" type shown? I tried to include a picture, but can't get it down to the 2mb size limit. Thank you, Dr Allis. |
Posted By: waw1962
Date Posted: 11 May 2024 at 4:59pm
| uploads/24759/d17_core_plug_2024-05-11_16-59-24.pdf" rel="nofollow - uploads/24759/d17_core_plug_2024-05-11_16-59-24.pdf |
Posted By: DrAllis
Date Posted: 11 May 2024 at 6:04pm
| Didn't come from West Allis with anything like that in it. |
Posted By: waw1962
Date Posted: 11 May 2024 at 8:05pm
| I'm wondering if I can replace with standard freeze plugs? Not sure why these were in the head. Correct me if I'm wrong, but there should only be two in a 1968 D17 Series IV, yes? Thanks again. |
Posted By: Mikez
Date Posted: 14 May 2024 at 6:53am
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Are you looking for #5  |
Posted By: waw1962
Date Posted: 14 May 2024 at 7:02am
| Yes, but curious about the plugs I pulled out. |
Posted By: Alex09(WI)
Date Posted: 14 May 2024 at 6:19pm
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Those are not replaceable core plugs. They are permanent plugs not mean to be removed. All D17 cylinder I have seen, have that style. They can be identified by a tapered bottom towards the center and are solid steel. Not flat bottom like replaceble core plugs. ------------- www.awtractor.com A&W TRACTOR 920-598-1287 KEEPING ALLIS-CHALMERS IN THE FIELDS THROUGH THE 21ST CENTURY |
Posted By: waw1962
Date Posted: 14 May 2024 at 6:56pm
| Well crap.... now what? Clean them and the bore up and put them back? Haven't done this before, in case you hadn't guessed. And I'm guessing, being permanent, very slim chance of ever leaking? I am taking it to a machine shop this week, maybe they can save me. Thank you. |
Posted By: Mikez
Date Posted: 14 May 2024 at 7:07pm
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When looked up 230357 it shows the plug. Alex is it pressed in. 
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Posted By: waw1962
Date Posted: 14 May 2024 at 8:02pm
| looks pretty close to the plug in my post... I haven't found any new ones online. |
Posted By: Mikez
Date Posted: 14 May 2024 at 8:27pm
| Do you need the two. |
Posted By: waw1962
Date Posted: 15 May 2024 at 4:42am
| I do need both. No sense in having the head reworked and then not install new plugs. Thanks. |
Posted By: Gatz in NE
Date Posted: 15 May 2024 at 7:41am
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[QUOTE=Mikez] When looked up 230357 it shows the plug. Alex is it pressed in.
[/QUOTEThat looks suspiciously like a Power Cell
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