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ac 301 cam bearings
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new2tractorz View Drop Down
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Joined: 30 May 2012
Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote new2tractorz Quote  Post ReplyReply Direct Link To This Post Topic: ac 301 cam bearings
    Posted: 30 May 2012 at 9:15pm

ConfusedI recently tore apart a 6 cyl diesel 301 and noticed something odd. The three front cam bearings are "splash" lubed thru a hole in the cam bearing . The motor that I am working on Has a hole in the rear brg. but it is not lined up with any passage in the block. As I see it there will be no lube for that bearing unless something is changed. It could just be installed wrong but I cannot see any passage to align the hole up with. Any input would be appreciated. Thanks.
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jnicol6600 View Drop Down
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Joined: 02 Jul 2011
Location: Sullivan Co. IN
Points: 174 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jnicol6600 Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2012 at 9:19pm
lubed through the cam maybe. are there holes in the bearing surfaces on the cam?
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new2tractorz View Drop Down
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Joined: 30 May 2012
Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote new2tractorz Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2012 at 9:22pm
No feed holes in cam journals.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21835 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2012 at 9:34pm
If A-C thought you needed to know how the rear bearing got oiled, they would have told you....install the new bearing just like the old one.
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MACK View Drop Down
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Joined: 17 Nov 2009
Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2012 at 9:37pm
That is the way they are made. No hole to lube the rear bearing.   MACK
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Joe(TX) View Drop Down
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Joined: 11 Sep 2009
Location: Weatherford. TX
Points: 1682 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Joe(TX) Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jun 2012 at 7:50pm
"The cam bearings are lubricated by the oil returning from the rocker arm shaft to the oil pan."
"The cam shaft bearings must be properly positioned in the cylinder block so the oil hole in the bearing lines up with the oil hole in the cylinder block."
 
The above is a quote from the service manual for the 190XT
1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A
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