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D17 vs WD45
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jfrdiesel View Drop Down
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Joined: 01 Aug 2015
Location: Michigan
Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jfrdiesel Quote  Post ReplyReply Direct Link To This Post Topic: D17 vs WD45
    Posted: 15 Nov 2015 at 6:16pm
Ok, I'm building a wd45 for pulling. I can buy an overhaul kit to increase compression and 1/8" more bore. Would I be farther ahead to to start with a d17 engine? What makes the d17 have so much more power from stock? I dont see what is so different in a d18 to make 60+ hp stock. Thanks
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jfrdiesel View Drop Down
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Joined: 01 Aug 2015
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jfrdiesel Quote  Post ReplyReply Direct Link To This Post Posted: 15 Nov 2015 at 6:17pm
Sorry d17 not d18!
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bigcountry48 View Drop Down
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Joined: 28 Aug 2011
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Points: 1099 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bigcountry48 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Nov 2015 at 6:40pm
Just buy a 175 rebuild kit for your wd45 motor. Make sure to have your cam ground to 175 specs and get a 175 carburetor. You'll be making more power than the d17 and you don't have to buy another block.

Edited by bigcountry48 - 15 Nov 2015 at 6:41pm
1950 B, 1952 pulling wd, and 1954 wd45
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jfrdiesel View Drop Down
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jfrdiesel Quote  Post ReplyReply Direct Link To This Post Posted: 15 Nov 2015 at 6:47pm
Thats the answer I was hoping for! What is the 175 cam and carburetor? Are these stock parts from something or aftermarket? The engine kit I was looking at is 4 1/8" bore with flat top pistons is this the right one? Thanks I'm very new to the a/c brand!
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TennMatt1 View Drop Down
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Joined: 12 Oct 2015
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Points: 71 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TennMatt1 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Nov 2015 at 10:39pm
I would like to know as well which carb number. I've been wondering if I could get more hp with a bigger carb. My engine is more than just a 175 kit.
1954 WD45
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Charlie175 View Drop Down
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Joined: 11 Sep 2009
Location: Shenandoah, VA
Points: 6353 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Charlie175 Quote  Post ReplyReply Direct Link To This Post Posted: 16 Nov 2015 at 5:40am
Originally posted by jfrdiesel jfrdiesel wrote:

Thats the answer I was hoping for! What is the 175 cam and carburetor? Are these stock parts from something or aftermarket? The engine kit I was looking at is 4 1/8" bore with flat top pistons is this the right one? Thanks I'm very new to the a/c brand!

I think he was referring to the actual 4" bore, 8.25 compression ratio pistons/sleeves.
The 4/125" bore flattops are aftermarket and some kits will actually lower the compression ratio.
The cam you will likely not find, and will need to take your cam to a company that modifies it (grind) to change the lob profile to match what the 175 used.
Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD
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CAL(KS) View Drop Down
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Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3746 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CAL(KS) Quote  Post ReplyReply Direct Link To This Post Posted: 16 Nov 2015 at 9:16am
yes this topic has been discussed in length.  a true 4'' bore power crater kit will yield more power and economy than any flat top overbore kit.
Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
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bigcountry48 View Drop Down
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Joined: 28 Aug 2011
Location: Georgia
Points: 1099 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bigcountry48 Quote  Post ReplyReply Direct Link To This Post Posted: 16 Nov 2015 at 2:36pm
They're right about the 4 inch power crater, but those can be hard to find. You can get the high compression 4 1/8 piston from agco. It puts out 9:1 compression and gives you a couple extra cubic inches. The 175 number is 948 I think. I know it's in the 900 range, I've got one I can sell if your interested.
1950 B, 1952 pulling wd, and 1954 wd45
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 19618 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 16 Nov 2015 at 2:44pm
AGCO (Allis Gleaner Company) does not offer ANY 4 1/8" pistons and sleeves whatsoever for the gas G-226 or W-226.
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8070 View Drop Down
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Joined: 15 Sep 2009
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Points: 115 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 8070 Quote  Post ReplyReply Direct Link To This Post Posted: 16 Nov 2015 at 3:03pm
If I was doing this I go ahead and have head done to put all the same size vol in it or a little bigger ex in it help u a lot and get u a gov spring that a little bit shorter then the one u got or do like I seen on one here that pulled they use a e carb and gov so u could use a the throttle to control u rpms. All in what class u wanting to run in and what u can do.
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jfrdiesel View Drop Down
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Joined: 01 Aug 2015
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jfrdiesel Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2015 at 5:34pm
So the 175 engine kit is a direct fit? Is the best choice? I want to bump the compression ratio up some. The flat top pistons must have a shorter compressed height to be lower compression than the power crater. Thanks again
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bigcountry48 View Drop Down
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Joined: 28 Aug 2011
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Points: 1099 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bigcountry48 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2015 at 8:03pm
I'm not sure what the best choice is, However the 175 kit sure is convenient and makes good horsepower.

Edited by bigcountry48 - 17 Nov 2015 at 8:42pm
1950 B, 1952 pulling wd, and 1954 wd45
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TramwayGuy View Drop Down
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Joined: 19 Jan 2010
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Points: 11265 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TramwayGuy Quote  Post ReplyReply Direct Link To This Post Posted: 17 Nov 2015 at 8:28pm
Be aware that if the 175 'kit' includes main bearings, they will not fit your WD45.  Only the pistons and sleeves. Not sure on the rod bearings.   And to add to the information, the D-17s and 170/175 all ran faster than the WD45 which also added power.

Edited by TramwayGuy - 17 Nov 2015 at 8:30pm
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 19618 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 18 Nov 2015 at 8:02am
A 175 overhaul kit does include all that extra stuff. A "Motor Kit" is just pistons and sleeves, rings, piston pins and rubber sleeve seals.
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jfrdiesel View Drop Down
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jfrdiesel Quote  Post ReplyReply Direct Link To This Post Posted: 23 Nov 2015 at 6:09pm
Any idea of the compression ratio of a 4 1/8" bore flat top piston with a compressed height of 2.53"?
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mattb View Drop Down
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Joined: 11 Jan 2011
Points: 348 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mattb Quote  Post ReplyReply Direct Link To This Post Posted: 23 Nov 2015 at 7:27pm
I put flat tops in mine and they cced out 9.4 to 1 but be careful aftermarket arent all the same i think mine came from a and i, 210 psi compression
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Charlie175 View Drop Down
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Joined: 11 Sep 2009
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Points: 6353 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Charlie175 Quote  Post ReplyReply Direct Link To This Post Posted: 23 Nov 2015 at 7:31pm
Originally posted by mattb mattb wrote:

I put flat tops in mine and they cced out 9.4 to 1 but be careful aftermarket arent all the same i think mine came from a and i, 210 psi compression

Same with mine. I think they were noted as "HC"
Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD
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Dan73 View Drop Down
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Joined: 04 Jun 2015
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Points: 6054 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dan73 Quote  Post ReplyReply Direct Link To This Post Posted: 23 Nov 2015 at 7:36pm
Try reading this thread from a little while back should answer alot of your questions.
http://www.allischalmers.com/forum/forum_posts.asp?TID=113303&PN=2&title=indefinant-backorder-engine-kit-agco
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