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Adrian
Mad Brick Rider
Joined: 17 Aug 2007
Posts: 98
Location: Weston super Mare, Somerset, UK
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 Posted: Thu Oct 01, 2009 4:11 pm Post subject: How big a job is replacing the valve seals |
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As my 97 LT is burning oil, yes I know that lots do, I'm thinking it might be a good idea to investigate replacing the valve stem oil seals in case this makes a difference. The bike uses about 1ltr every 1000 miles, livable with, but a pain on long trips!
would this be worthwhile and is it a do-able job for so-so amateur spanner man?
Thanks folks
_________________
Adrian in Somerset, UK
K1100LT SE
145,000 miles and counting 
https://sites.google.com/site/worlestone/ |
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RJTrucker
Flying Brick Rider
Joined: 31 Mar 2008
Posts: 234
Location: Central NJ
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| Posted: Thu Oct 01, 2009 5:00 pm Post subject: Valve seals |
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They do not use valve seals. It cold be bad valve guides not seals. Did you do a wet and dry compression test?
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Ron
1993 K11LT
1985 K100RS with over 100K on it
1985 K100RS Luftmiester Turbo Work in progress (any help is appreciated)
1974 R90/6 |
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duckbubbles
Flying Brick Rider
Joined: 01 Jun 2006
Posts: 361
Location: Austin, Texas, USA
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| Posted: Thu Oct 01, 2009 7:00 pm Post subject: Re: Valve seals |
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| RJTrucker wrote: | | They do not use valve seals. It cold be bad valve guides not seals. Did you do a wet and dry compression test? |
I replaced the non-existent valve oil seals on my '93 motor when I had the head off.
Frank
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85 K100/1100RS, 321,000 miles, 25 years
96 Ducati 900SS/SP, sold it
05 R1200ST, 35,000 miles, 5 years
400,000 BMW miles |
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Rafal
Flying Brick Rider
Joined: 05 Jan 2009
Posts: 257
Location: Wroclaw, Poland
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| Posted: Fri Oct 02, 2009 3:31 am Post subject: Re: Valve seals |
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| RJTrucker wrote: | | They do not use valve seals. It cold be bad valve guides not seals. Did you do a wet and dry compression test? |
OMG?? What kind of bullsh... you have heard in the past? part no. 7 .
@Adrian
I was also considering valve seal change. Head disassembly is required, also new head seal must be fitted. Rather complicated job to do if you don't have proper tools and own workshop.
My engine also burns oil but only until level drops do "dot" on the indicator. Something about 150ccm per 1000 kms. So I don't fill above the dot  .
Best regards,
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Rafal
K1100RS is a real beast (in Marrakesh Red)
K75S is a real beauty - she has gone  , but not to far .
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Wrigsby1
Big Brick Rider
Joined: 25 Feb 2006
Posts: 72
Location: Shetland
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| Posted: Fri Oct 02, 2009 9:20 am Post subject: |
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How much oil? Like you say, many of them do and BM's can be "normal" still use a bit or smoke at startup. We used to have a demo K12LT with a few hundred mile on the clock and you had to wheel it outside to start it up!
Ta
G |
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