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2005 FXST valve seal replacement

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Old Jun 3, 2013 | 11:40 AM
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Default 2005 FXST valve seal replacement *Pics*

I got my 05 FXST last summer with 1.2k on it and proceed to put 10k trouble free miles on it. I pulled it out for this season, and after 1.5k I noticed it was consuming about a quart of oil in 1k. A quick google search told me this was a common problem with the 05s and early 06s. After a $700 quote from the local dealer, I bought a gasket set and shop manual and Im doing it myself. Im no stranger to the inside of an engine, but this is my first time in a Harley.

Im not sure how long it was using oil, I only noticed it this year. But the inside of the 1st cylinder was pretty bad. Ill have more time in the shop tonight to clean and install the new valve seals in the first head.

Heres the first set of pics:









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Last edited by hyde802; Jun 3, 2013 at 01:37 PM.
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Old Jun 3, 2013 | 11:47 AM
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A new set of seals will only slow the problem. My guess is your valve guide is worn. Need to check valve stem play with a dial indicator.
 
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Old Jun 3, 2013 | 12:05 PM
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Originally Posted by soft 02
A new set of seals will only slow the problem. My guess is your valve guide is worn. Need to check valve stem play with a dial indicator.
Will do! Thanks for the tip! Is that normal for them to be worn out at 11k miles?
 

Last edited by hyde802; Jun 3, 2013 at 12:15 PM.
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Old Jun 3, 2013 | 05:17 PM
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There was a dealer service bulletin on the valve seal issues. Got lucky and had mine done under warranty, also had cams and headwork done while they were in it. As for the seals themselves, all they did was install new. Haven't had any issues burning oil in the 30k miles since. There was apparently a bad batch that came from the MoCo, the bulletin covered pretty much all TC88's for most of 05 and some of 06.
 
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Old Jun 3, 2013 | 05:22 PM
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Originally Posted by hyde802
Will do! Thanks for the tip! Is that normal for them to be worn out at 11k miles?
11k it is not normal but seeing there was a service bulletin take measurements if you have the tools then change the seals. If the seals are the same as a 96" ill send you a set for free. I over ordered buy a bunch when I rebuilt my motor.
 
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Old Jun 3, 2013 | 07:10 PM
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Same thing happened to me. I bought an 05 FXST with 4700 miles on the clock. I knew about the valve seal issue when I bought the bike and just took it to a local Indy. Cost me $300 to fix and no more oil usage. Even with that repair, I still got a good deal on the bike.
 
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Old Jun 4, 2013 | 07:28 AM
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I already have the seals, but thanks for the offer!

I did however check my valve guides last night. The book says in spec was .001-.002. On the front cylinder, my exhaust valve was right at the limit but my intake valve was about.005-006. So apparently, yes, at 11k, my valve guides are shot.



I didnt have time to test the other head but I did pull it off to find more oil/carbon deposits than in the first cylinder.




 
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Old Jun 4, 2013 | 07:30 AM
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Cool. Didnt want you to go that deep to see it leak down the road. Time to send em off for a nice rebuild! Oh and lookin at your breathers there is an upgraded breather assy and its like $17 bucks and one modification is drilling out your breather oil return hols to .124 I think. Thats under the rocker arms. FWIW.
 
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Old Jun 4, 2013 | 07:59 AM
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Originally Posted by soft 02
Oh and lookin at your breathers there is an upgraded breather assy and its like $17 bucks and one modification is drilling out your breather oil return hols to .124 I think. Thats under the rocker arms. FWIW.
Got as link for either of those? Thanks again for the tips!
 
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Old Jun 4, 2013 | 08:02 AM
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Originally Posted by hyde802
Got as link for either of those? Thanks again for the tips!
Heading out the door. Ill give you some links. All cheep and free stuff to help w/oil in the AC.
 
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