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Followup on WD WD45 pistons

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment -Knowledge Base
Forum Description: Long term storage of technical article, etc
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=114979
Printed Date: 03 Jun 2020 at 6:00pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: Followup on WD WD45 pistons
Posted By: Michael Crowe
Subject: Followup on WD WD45 pistons
Date Posted: 20 Nov 2015 at 8:38pm
I finally had a chance to get to the farm and take some pictures. I will post each engine kit or set of pistons in a separate post to minimize confusion.

This is a set of 4 WD 6.6:1 ratio pistons.






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The 10th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 5-6, 2021. See the club website for details: http://www.moacclub.com



Replies:
Posted By: Michael Crowe
Date Posted: 20 Nov 2015 at 8:43pm
This is a set of 6.45:1 compression pistons for a WD45.








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The 10th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 5-6, 2021. See the club website for details: http://www.moacclub.com


Posted By: Michael Crowe
Date Posted: 20 Nov 2015 at 8:45pm
This is a 5.5:1 compression piston for a WD.

I only have one of these; not sure where I got it.





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The 10th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 5-6, 2021. See the club website for details: http://www.moacclub.com


Posted By: Michael Crowe
Date Posted: 20 Nov 2015 at 8:47pm
This is an Engine Kit, 257454, this is a 5.7:1 compression ratio for a WD engine.










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The 10th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 5-6, 2021. See the club website for details: http://www.moacclub.com


Posted By: Michael Crowe
Date Posted: 20 Nov 2015 at 8:49pm
This is an Engine Kit for a WD45 with 6.45:1 compression ratio pistions.








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The 10th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 5-6, 2021. See the club website for details: http://www.moacclub.com


Posted By: Michael Crowe
Date Posted: 20 Nov 2015 at 8:51pm
This is an Engine Kit for a WD45 with 7.25:1 compression pistons.








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The 10th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 5-6, 2021. See the club website for details: http://www.moacclub.com


Posted By: Michael Crowe
Date Posted: 20 Nov 2015 at 9:00pm
I have 3 WD45 6.45:1 engine kits and 1 WD 5.7:1 Engine Kit that I will sell.  I also have 4 NOS 6.6:1 compression WD Pistons. All these kits and miscellaneous pistons are NOS. I also have a 4 NORS Sleeve Kits for a WD Distillate Engine.

Sorry to take so long fixing the above posts due to the Photobucket debacle.

Please email or call me if you are interested. I rarely check PM's.

mcrowefarm@gmail.com or 816 898 7277.


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The 10th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 5-6, 2021. See the club website for details: http://www.moacclub.com


Posted By: Dmpaul89
Date Posted: 20 Nov 2015 at 9:11pm
Im interested In a 7.25 kit ill contact tomorrow.


Posted By: Brian G. NY
Date Posted: 20 Nov 2015 at 9:12pm
Great Information and pictures!
I make a motion that this be made a permanent post like Brian Ahart's post on wheel weights.


Posted By: DrAllis
Date Posted: 21 Nov 2015 at 6:11am
Wonderful. So, the WD-45 LPG piston really is the same piston/piston bowl as a D-17 gas engine, whereas the WD-45 gas is the cereal bowl design.


Posted By: TedBuiskerN.IL.
Date Posted: 21 Nov 2015 at 7:44am
I would say the 7.25 : 1 WD45 kit would be a later kit, since they are the D17 design.
The parts book shows the 5.0:1 WD piston the same part number as the 7.25:1 WD45, and I would assume, since it is a WD piston design, would be a flat top piston. 
 Great post.


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Most problems can be solved with the proper application of high explosives.


Posted By: Michael Crowe
Date Posted: 21 Nov 2015 at 9:40am
Just to add a bit of light on the 7.25:1 lpg piston, when I rebuilt my 1953 WD45 Distillate it had the 5.0:1 compression ratio pistons, part number 223507. The pictures I took were not the best but my recollection is that they were dished; could be flat tops, but definitely not the recessed bowl like the lpg piston.

The parts books I have shows the 5.0:1 piston, 223507 the same as the 7.2:1 compression piston. I don't know if it is a typo, or if the 7.25:1 was a separate piston than the 223507. My suspicion is that it is not a typo, because the parts books shows the 223507 to also be a WD45 piston, but it does not show the lpg piston to also be a WD piston or even a 226 power unit piston.

Another interesting sidenote, when I bought my rebuild kit from ACGO to rebuild my WD45 Distillate, it came with the lpg pistons.

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The 10th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 5-6, 2021. See the club website for details: http://www.moacclub.com


Posted By: JPG AUSTRALIA
Date Posted: 21 Nov 2015 at 5:54pm
WC and WD kero /distallate engines have the cereal bowl pistons,i dont know what their part number is but i,d say if they went on a wd 45 crank you would get 7.25 compression. They sit down a fair way in the 201 cylinder.


Posted By: Don(MO)
Date Posted: 23 Nov 2015 at 12:25pm
Brian is right this post needs to get put in the new spot for all to find latter on down the road.

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3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.



Posted By: Lonn
Date Posted: 23 Nov 2015 at 6:31pm
Originally posted by JPG AUSTRALIA JPG AUSTRALIA wrote:

WC and WD kero /distallate engines have the cereal bowl pistons,i dont know what their part number is but i,d say if they went on a wd 45 crank you would get 7.25 compression. They sit down a fair way in the 201 cylinder.
As far as I know all WC and WD distillate pistons, when these tractors were new, had flat top pistons. They were just shorter than the higher compression gasoline pistons. Also at least the early WC pistons were cast iron and not aluminum.

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-- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... -
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I am a Russian Bot


Posted By: Michael Crowe
Date Posted: 24 Jan 2018 at 3:56pm
I just reposted all these pictures due to the photobucket mess.

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The 10th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 5-6, 2021. See the club website for details: http://www.moacclub.com


Posted By: WF owner
Date Posted: 24 Jan 2018 at 5:20pm
One of my D-17's had the (7.25/1) 229717 pistons, the same as the photo above.
Reliant's  7.25/1 pistons are virtually identical.


Posted By: Auntwayne
Date Posted: 24 Jan 2018 at 9:53pm
     Thanks Michael, I missed it last time.

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Dad always said," If you have one boy, you have a man. If you have two boys, you have two boys". "ALLIS EXPRESS"


Posted By: Don(MO)
Date Posted: 25 Jan 2018 at 11:38pm
Thanks for bringing the pic's back on here.

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3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.




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