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Followup on WD WD45 pistons
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Michael Crowe View Drop Down
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Joined: 11 Sep 2009
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Points: 1722 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Crowe Quote  Post ReplyReply Direct Link To This Post Topic: Followup on WD WD45 pistons
    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.






Edited by Michael Crowe - 24 Jan 2018 at 3:11pm
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Michael Crowe View Drop Down
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Points: 1722 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Crowe Quote  Post ReplyReply Direct Link To This Post Posted: 20 Nov 2015 at 8:43pm
This is a set of 6.45:1 compression pistons for a WD45.








Edited by Michael Crowe - 24 Jan 2018 at 3:15pm
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Michael Crowe View Drop Down
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Points: 1722 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Crowe Quote  Post ReplyReply Direct Link To This Post 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.





Edited by Michael Crowe - 24 Jan 2018 at 3:17pm
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Michael Crowe View Drop Down
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Points: 1722 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Crowe Quote  Post ReplyReply Direct Link To This Post 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.










Edited by Michael Crowe - 24 Jan 2018 at 3:23pm
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Michael Crowe View Drop Down
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Points: 1722 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Crowe Quote  Post ReplyReply Direct Link To This Post Posted: 20 Nov 2015 at 8:49pm
This is an Engine Kit for a WD45 with 6.45:1 compression ratio pistions.








Edited by Michael Crowe - 24 Jan 2018 at 3:27pm
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Michael Crowe View Drop Down
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Points: 1722 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Crowe Quote  Post ReplyReply Direct Link To This Post Posted: 20 Nov 2015 at 8:51pm
This is an Engine Kit for a WD45 with 7.25:1 compression pistons.








Edited by Michael Crowe - 24 Jan 2018 at 3:30pm
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Michael Crowe View Drop Down
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Points: 1722 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Crowe Quote  Post ReplyReply Direct Link To This Post 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.


Edited by Michael Crowe - 24 Jan 2018 at 3:35pm
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Points: 1689 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dmpaul89 Quote  Post ReplyReply Direct Link To This Post Posted: 20 Nov 2015 at 9:11pm
Im interested In a 7.25 kit ill contact tomorrow.
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Brian G. NY View Drop Down
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Points: 2242 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G. NY Quote  Post ReplyReply Direct Link To This Post 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.
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DrAllis View Drop Down
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Points: 20523 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post 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.
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Points: 1959 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TedBuiskerN.IL. Quote  Post ReplyReply Direct Link To This Post 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.


Edited by TedBuiskerN.IL. - 21 Nov 2015 at 8:28am
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Michael Crowe View Drop Down
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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.
The 14th Annual Exclusive AC Swap Meet will be held in Boonville, MO, March 7-8, 2025. See the club website for details: http://www.moacclub.com/
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Points: 756 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JPG AUSTRALIA Quote  Post ReplyReply Direct Link To This Post 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.
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Points: 6862 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Don(MO) Quote  Post ReplyReply Direct Link To This Post 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.
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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Points: 29781 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post 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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Michael Crowe View Drop Down
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Points: 1722 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Crowe Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jan 2018 at 3:56pm
I just reposted all these pictures due to the photobucket mess.
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Points: 4666 		Post Options Post Options   Thanks (0) Thanks(0)   Quote WF owner Quote  Post ReplyReply Direct Link To This Post 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.
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     Thanks Michael, I missed it last time.
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Thanks for bringing the pic's back on here.
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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