Dana 18 output shaft pilot bushing install

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I'm trying to change the output shaft pilot bushing as part of a Dana Spicer 18 rebuild.  I have been beating the crap out of the bushing trying to get it in.  I have a board over it, and i'm hitting that with a hammer.  It's gone about half way in, and it isn't moving anymore.  Is it typical for it to be really hard to get one of those in?Does anyone have a trick?
Thanks
Mike

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VashonMike Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 25 Mar. 2012 Status: Offline Points: 25	Post Options Post Reply Quote VashonMike Report Post Thanks(0) Quote Reply Topic: Dana 18 output shaft pilot bushing install Posted: 12 May 2012 at 10:27pm
	I'm trying to change the output shaft pilot bushing as part of a Dana Spicer 18 rebuild. I have been beating the crap out of the bushing trying to get it in. I have a board over it, and i'm hitting that with a hammer. It's gone about half way in, and it isn't moving anymore. Is it typical for it to be really hard to get one of those in? Does anyone have a trick? Thanks Mike

TERRY Members Profile Send Private Message Find Members Posts Add to Buddy List Member Sponsor Member Joined: 22 May 2007 Location: BOULDER COLORADO Status: Offline Points: 3400	Post Options Post Reply Quote TERRY Report Post Thanks(0) Quote Reply Posted: 12 May 2012 at 11:43pm
	Careful with the beating, it may mushroom. Did you try heating the output shaft by boiling it in a plastic bag and freezing the pilot bushing. Grease the outside of the bushing and push it in quickly before the heat transfers. You might also want to freeze the output clutch that rides in the bushing and use it as a mandrel to push the bushing in place.
	BOULDER 48 2A

VashonMike Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 25 Mar. 2012 Status: Offline Points: 25	Post Options Post Reply Quote VashonMike Report Post Thanks(0) Quote Reply Posted: 13 May 2012 at 12:00am
	Thanks Terry. that sounds like a great idea. It's definitly to late for that with this bushing. If i destroy it, ill buy a new one and use your method. -Mike

Abend Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 21 Apr. 2012 Location: Erlanger, KY Status: Offline Points: 199	Post Options Post Reply Quote Abend Report Post Thanks(0) Quote Reply Posted: 13 May 2012 at 2:08pm
	Since I'm getting ready to do the same thing, how did you get the old bushing out?

Carlsjeep Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 15 Jan. 2011 Location: Taylorsville Ky Status: Offline Points: 2642	Post Options Post Reply Quote Carlsjeep Report Post Thanks(0) Quote Reply Posted: 13 May 2012 at 3:18pm
	If it's an aftermarket bushing it may be oversize for the hole. When it's installed the hole in the bushing may have to be reamed for the correct clearance. The aftermarket pilot bushing that goes in the flywheel is also a problem. The OD is to big and the ID is to small. If you can find a NOS bushing for the output shaft buy it. Otherwise you will have to measure the bore in the output shaft and measure the OD of the bushing. The bushing should have about .001" press fit. That means the bushing should only be .001" bigger than the bore in the shaft. You should also have about .001"-.0015" clearance for the shaft that fits into the bushing. Also, you need to use a bushing driver, not a piece of wood. The wood gives and acts like a spring unless it is a very hard wood. Wood doesn't make a good bushing driver. Aftermarket parts for the engine and transmission is a crap shoot at best. Edited by Carlsjeep - 13 May 2012 at 3:19pm
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Harveynailbanger Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 23 July 2010 Location: Long Beach,MS Status: Offline Points: 1467	Post Options Post Reply Quote Harveynailbanger Report Post Thanks(0) Quote Reply Posted: 14 May 2012 at 3:51am
	i had to take cutting wheel and remove a tiny bit of material out of the "slot" in bushing to allow it to be installed. then you need a 5/8ths or .625 ream to make the id right. all three of the aftermarket ones i have installed have been like this. EDIT if you cut it be absolutely sure to file any and all burrs off before installation. if you have a set of mics could you get both measurements on yours before you install it please. i want to find a bearing to replace this bushing with if possible. Rick to remove the old one i had to use a hacksaw blade and cut across from the "slot" and remove in two peices. patience is a must here. my blind pilot puller is not long enough to reach behind the bushing. Edited by Harveynailbanger - 14 May 2012 at 3:54am
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