Ducati Monster Forum

Moto Board => Tech => Topic started by: angler on June 07, 2009, 06:35:43 PM

Title: removing lower steering stem seal
Post by: angler on June 07, 2009, 06:35:43 PM
You know, the one pressed on to the stem against the lower triple?  I can't get it to budge, but I haven't used any heat.  I want to pull it before I send the triple to the powder coater.  I have a sealed bearing set to install when I mount my sbk forks.

Thanks in advance......
Title: Re: removing lower steering stem seal
Post by: hooligan machinist on June 07, 2009, 06:43:29 PM
  Probably the best and fastest way without damaging anything is to press the stem out through the bottom of the lower triple. The bearing "seating" surface is relatively short. About 5/8" to 3/4" movement and the bearing is free.
Title: Re: removing lower steering stem seal
Post by: angler on June 07, 2009, 06:50:31 PM
Quote from: hooligan machinist on June 07, 2009, 06:43:29 PM
  Probably the best and fastest way without damaging anything is to press the stem out through the bottom of the lower triple. The bearing "seating" surface is relatively short. About 5/8" to 3/4" movement and the bearing is free.

That seems a bit extreme just to get a dang seal off. Plus I don't have a press........
Title: Re: removing lower steering stem seal
Post by: hooligan machinist on June 07, 2009, 06:55:25 PM
  Indeed it is "extreme". Sorry dude, i didn't notice the year or model.
I'm too used to working on my OLD monster. ;)
Title: Re: removing lower steering stem seal
Post by: Speeddog on June 07, 2009, 10:44:34 PM
Are you talking about the seal, or the bearing race?

The seal is just a rubber lip on a sheetmetal 'washer', and it shouldn't be tight.
Title: Re: removing lower steering stem seal
Post by: angler on June 08, 2009, 03:06:26 PM
Quote from: Speeddog on June 07, 2009, 10:44:34 PM
Are you talking about the seal, or the bearing race?

The seal is just a rubber lip on a sheetmetal 'washer', and it shouldn't be tight.

The race is there as well.
Title: Re: removing lower steering stem seal
Post by: gage on June 08, 2009, 06:17:17 PM
You can try to lever the race off with a screwdriver after heating the stem. There is a washer under the seal that you will want to keep. I have taken several off this way but on my monster the tolerance was too tight and I ended up bring it to a generic shop that had a two piece wedge that went on either side of the race with two bolts that tightened and forced the race up. They charged me $5 to do it.
Title: Re: removing lower steering stem seal
Post by: angler on June 09, 2009, 07:11:18 AM
Quote from: gage on June 08, 2009, 06:17:17 PM
You can try to lever the race off with a screwdriver after heating the stem. There is a washer under the seal that you will want to keep. I have taken several off this way but on my monster the tolerance was too tight and I ended up bring it to a generic shop that had a two piece wedge that went on either side of the race with two bolts that tightened and forced the race up. They charged me $5 to do it.

Excellent.  Maybe tonight I'll get the torch out and see what I can do.  I figured it would take some heat......