WD45 / D17 head
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=155198
Printed Date: 22 Aug 2025 at 12:51am Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: WD45 / D17 head
Posted By: WF owner
Subject: WD45 / D17 head
Date Posted: 31 Oct 2018 at 3:22pm
A quick question; Is a WD45 (4") head the same as an early D17 head?
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Replies:
Posted By: DrAllis
Date Posted: 31 Oct 2018 at 3:39pm
It will interchange, but the intake valves are different between the heads.
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Posted By: WF owner
Date Posted: 31 Oct 2018 at 3:49pm
I have my D-17 head at the machine shop. They just called and said the head is junk. I have a WD45 4" head on the shelf. I have a complete new valve train that says "Allis Chalmers 226 (G226) Gas, LPG Valve Train Kit". Do you think this head/valve set will work on the (1959) D-17?
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Posted By: DrAllis
Date Posted: 31 Oct 2018 at 3:55pm
A "W-226" is a WD45 engine and has 45 degree intake valves. A "G-226" is a D-17 engine and has 30 degree intake valves. Don't know what your parts are.
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Posted By: WF owner
Date Posted: 31 Oct 2018 at 6:50pm
Thank you DrAllis !!! Are all the other parts the same (exhaust valves, guides, springs, keepers)?
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Posted By: DrAllis
Date Posted: 01 Nov 2018 at 7:01am
Everything else is the same.
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Posted By: Ted J
Date Posted: 01 Nov 2018 at 10:46am
What's wrong with the head? Is it cracked? Been ground too many times? I'd bet there's somebody here that has one for pretty cheap....
------------- "Allis-Express" 19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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Posted By: DrAllis
Date Posted: 01 Nov 2018 at 12:06pm
If it is being condemned for cracks at the spark plug holes?? Tell them to ignore those cracks. Never seen one that didn't work just fine that way.
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Posted By: WF owner
Date Posted: 01 Nov 2018 at 5:59pm
The tractor had set with the exhaust uncovered and, of course, rain water ran down into #2 cylinder. He said the head is rusted really bad around the valve guide and is too badly deteriorated to hold the guide.
As I said above, I have a WD45 head on the shelf (hopefully it is a good head!), but if anyone has a D-17 head at a reasonable price, I am interested. Otherwise, I will probably just buy the intake valves for the W head and use it.
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Posted By: PaulB
Date Posted: 02 Nov 2018 at 1:19am
If I remember correctly, I have some NOS valves for the 201/226 heads. I’ll take a close look to see just which ones they are after I get home from work later today.
------------- If it was fun to pull in LOW gear, I could have a John Deere. Real pullers don't have speed limits. If you can't make it GO... make it SHINY
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Posted By: Gary Burnett
Date Posted: 02 Nov 2018 at 5:46am
I have a couple a D17 heads I'd sell plus other parts the guy I bought this one from tore everything apart did some work then quit the project I bought it to get the wide front and PS to swap out on another tractor.
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Posted By: Lon(MN)
Date Posted: 02 Nov 2018 at 8:15am
I have rebuilt WD45 heads on the shelf. New valves,guides,springs,keepers, and expansion plugs. Tested for cracks and machined on the head and intake surface. $350.00.
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Posted By: Jamon
Date Posted: 22 Apr 2020 at 2:51pm
Do you still have D17 heads?
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Posted By: jeickman01
Date Posted: 22 Apr 2020 at 4:41pm
"A "W-226" is a WD45 engine and has 45 degree intake valves. A "G-226" is a D-17 engine and has 30 degree intake valves. Don't know what your parts are." Is Dr Allis talking about valve seat angle here and if so, can't the valve seats just be ground to match the valves you have?
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Posted By: SteveM C/IL
Date Posted: 22 Apr 2020 at 10:13pm
doubt the seat would have enough material in the right area to get the contact point where it should be....guess you wouldn't know till you tried it or at least looked it over carefully before hand
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Posted By: WD45Diesel57
Date Posted: 23 Apr 2020 at 7:33am
manifold studs are different sizes, wd45 has 3/8" bolts and the D17 has 7/16"
------------- 1-B's, 2-C, 2-CA's,2-WF, 1-WC,1-G, 3-WD's, 2-WD45, 1-RC, 1-D17 Diesel, 1-D14, 2-D15,1-D17 row crop,1-D19 gas and All Crop 40,60,66,72,90 and 100
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Posted By: Lonn
Date Posted: 23 Apr 2020 at 7:37am
jeickman01 wrote:
"A "W-226" is a WD45 engine and has 45 degree intake valves. A "G-226" is a D-17 engine and has 30 degree intake valves. Don't know what your parts are." Is Dr Allis talking about valve seat angle here and if so, can't the valve seats just be ground to match the valves you have?
| At that point I'd consider new seats.
------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot
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