d17 wd45 crankshaft
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=203833
Printed Date: 22 Nov 2024 at 12:42pm
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Topic: d17 wd45 crankshaft
Posted By: HudCo
Subject: d17 wd45 crankshaft
Date Posted: 25 Oct 2024 at 10:32am
| is the crankshaft for a d17 sn9850 the same a wd 45 crankshaft ? |
Replies:
Posted By: DrAllis
Date Posted: 25 Oct 2024 at 11:13am
| NO at any serial number!! WC-WF-WD-WD45 engines have 2 1/2" diameter main bearing journals. This is the W-201 and W-226 engine series. The D17-170-175-E and E-3 combines have 3" diameter main bearing journals. This is the G-226 engine series. Blocks and cranks are DIFFERENT. |
Posted By: HudCo
Date Posted: 25 Oct 2024 at 7:52pm
| is the series 1 and series 4 the same ? what is the part number for series 4 if it is differant |
Posted By: DrAllis
Date Posted: 25 Oct 2024 at 8:08pm
| Series 1 and 2 and 3 were all the same. Series 4 and 170 and 175 have "tuff-trided" (nitrided) crankshaft journals, which make them harder on the surface to resist wear. You cannot tell the difference by looking at one, as a new crank fits right in an old engine. |
Posted By: HudCo
Date Posted: 25 Oct 2024 at 8:22pm
| what is the part number for the series 4 when i look it up it shows a part number for a kit. it will easyer if i have the number off the crank for searching. maybe i missed somthing on the parts book. i need to start looking for another crank for the puller mine has been at the machine shop for almost a year. i have a brand new wd45 crank still in the box when was going to biuld a 201 block for the puller when scored the smashed series 4 know really want the series 4 engine in the puller |
Posted By: DrAllis
Date Posted: 25 Oct 2024 at 10:22pm
| I've looked at three crankshafts for a G-226 in my basement. All three have a casting number of 229022. |
Posted By: SteveM C/IL
Date Posted: 26 Oct 2024 at 8:55am
| I'm guessing these original cranks are forged? My 45 was. It now has an Asian cast crank. |
Posted By: DrAllis
Date Posted: 26 Oct 2024 at 9:00am
| YUP. A red/white hot chunk of good quality steel/iron that is hammered into 3 or 4 step dies to achieve the size and shape they wanted. There are Utube videos on crankshaft forging. Amazing how man has mastered some manufacturing processes to the same result hundreds or thousands of times per day. |
Posted By: SteveM C/IL
Date Posted: 26 Oct 2024 at 9:05am
| I had a course in college called "manufacturing processes". 50's film forging a 6cyl crank. Amazing how they flipped and turned that red hot chunk and beat it into shape! |
Posted By: DrAllis
Date Posted: 26 Oct 2024 at 9:18am
| After watching one of those cranks being forged, it would explain how once in a great while one breaks after years of service. Surely there is an occasional flaw of dirt or debris in the metal that later on shows up as a fracture. |
Posted By: Les Kerf
Date Posted: 26 Oct 2024 at 10:17am
I presume that grinding the journals undersize pretty much wipes out the nitriding?
|
DrAllis wrote:Posted By: DrAllis
Date Posted: 26 Oct 2024 at 4:35pm
| Yes. It is only .003" thick I am told. |