Pilot Bushing ? - JeepForum.com
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post #1 of 5 Old 07-29-2007, 11:02 AM Thread Starter
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Pilot Bushing ?

Does anyone know if there should be a lot of play in the pilot bushing? I am swapping a 360 from an auto J10 to a CJ7 with a standard. I took the pilot bushing out of the old 304 that was blown in the CJ and it has some play in it. I have a new one ordered but it doesn't come in until tomorrow. I finally got the old bushing out, but as I said there is play in it. Thanks.

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post #2 of 5 Old 07-29-2007, 11:13 AM
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Where is the play? In the crank, or in the input shaft?

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post #3 of 5 Old 07-29-2007, 11:16 AM Thread Starter
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input shaft......

it fits tight in the crank (tapped in).....but sloppy in input shaft.
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post #4 of 5 Old 07-29-2007, 11:22 AM
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No there should not be "a lot" of play in the pilot bushing. It should be a press fit into the crank and a slip fit onto the nose of the input shaft.
If the transmission changes; i.e. going from a T-18 to a T-176 the bearing should also be changed as there is often a different diameter on the nose of the input shaft.
Sometimes the inside to the bearing is also worn enough to allow slop between the input shaft and the bearing, in this case the bearing should also be changed.

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post #5 of 5 Old 07-29-2007, 06:53 PM
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the one i just took out of my cj5 (304 w t150) had almost a 1/4 inch of slop between the bearing and the input shaft. the replacement fit perfectly on the input shaft and had none. i'm not sure if the old bearing was a PO error or was just worn down that much.
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