connecting rod orientation
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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=41016
Printed Date: 29 Aug 2025 at 7:06am
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Topic: connecting rod orientation
Posted By: mp38b
Subject: connecting rod orientation
Date Posted: 23 Nov 2011 at 6:57pm
| I have a pile of mix and match rods and caps. Can anyone help me with rod orientation ? Which cylinders have the wrist pin bolts pointing towards the cam? |
Replies:
Posted By: mp38b
Date Posted: 23 Nov 2011 at 6:59pm
| I suppose that knowing that the tractor is a '38 B is helpful. |
Posted By: wfmurray
Date Posted: 23 Nov 2011 at 7:58pm
| Some one can proabley set you stright but on my 49 B 2 went one way and 2 went the other. The way i done was after fitting rod on piston put piston in and slide down and you can tell which way it needs to go. |
Posted By: MNLonnie
Date Posted: 23 Nov 2011 at 8:01pm
|
Don't know if this helps but it says the connecting rod is offset and the long side of the offset should be away from the nearest main bearing. Not sure if the wrist pin bolt matters? ------------- Waukesha B, B, IB, G, styled WF, D15, 615 backhoe, 2-Oliver OC3's, 4 Ford Model T's, 3 Model A Fords, AV8 Coupe, AV8 Roadster, 1933 Ford Wrecker |
Posted By: MNLonnie
Date Posted: 23 Nov 2011 at 8:04pm
|
OK, the other book says replacement rods are not marked and the pin clamp screw should face the camshaft. ------------- Waukesha B, B, IB, G, styled WF, D15, 615 backhoe, 2-Oliver OC3's, 4 Ford Model T's, 3 Model A Fords, AV8 Coupe, AV8 Roadster, 1933 Ford Wrecker |
Posted By: Chalmersbob
Date Posted: 23 Nov 2011 at 9:23pm
| That is the oranitation an the 201 & 226 engine, but on the B they are different. 2 face the cam and 2 face away from the cam to offset the bearings. Bob |
Posted By: CTuckerNWIL
Date Posted: 23 Nov 2011 at 11:11pm
|
From the manual. Numbers 1 and 3 have the long part of the bearing toward the flywheel, and Numbers 2 and 4 have the long part toward the timing gears. ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Dick L
Date Posted: 24 Nov 2011 at 5:53am
Would a picture help? |
Posted By: B26240
Date Posted: 24 Nov 2011 at 7:12am
| Listen to Dick L he knows his stuff!! |