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mp38b 
Silver Level
Joined: 04 Nov 2009
Location: WI
Points: 54
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 Topic: connecting rod orientation
Posted: 23 Nov 2011 at 6:57pm |
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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?
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mp38b
Silver Level
Joined: 04 Nov 2009
Location: WI
Points: 54
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Posted: 23 Nov 2011 at 6:59pm |
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I suppose that knowing that the tractor is a '38 B is helpful.
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wfmurray
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Joined: 13 Sep 2009
Location: Bostic NC
Points: 1225
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Posted: 23 Nov 2011 at 7:58pm |
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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.
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MNLonnie
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Joined: 11 Sep 2009
Location: Baxter MN
Points: 4791
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Posted: 23 Nov 2011 at 8:01pm |
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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?
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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
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MNLonnie
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Posted: 23 Nov 2011 at 8:04pm |
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OK, the other book says replacement rods are not marked and the pin clamp screw should face the camshaft.
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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
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Chalmersbob
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Joined: 11 Sep 2009
Location: Pennsylvania
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Posted: 23 Nov 2011 at 9:23pm |
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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
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22825
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Posted: 23 Nov 2011 at 11:11pm |
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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.
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Dick L
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Joined: 12 Sep 2009
Location: Edon Ohio
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Posted: 24 Nov 2011 at 5:53am |
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B26240
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Joined: 21 Nov 2009
Location: mn
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Posted: 24 Nov 2011 at 7:12am |
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Listen to Dick L he knows his stuff!!
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