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Valve Clearance for Roller Tappets

Discussion in 'Stelvio Chat & Tech' started by canuck1969, Feb 13, 2016.

  1. V700Steve

    V700Steve High Miler GT di Razza Pura

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    He can't do anything in UK only USA. You have the same guys over there that teach the tech's on new products, they work for the countries importer & do warranty & such.
     
  2. TurcoLoco

    TurcoLoco Just got it firing! GT Contributor

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    Were you serious? Wasn't that way too tight?
    My service is due and valve clearance is one of the maintenance items on the list.
    As I was trying to decide whether I want to try the 10mm-15mm settings, I saw your post and got even more confused!

    Has anyone checked between valve jobs to see if the clearance got bigger or smaller compared to the previous adjustment?
     
  3. kiwi dave

    kiwi dave GT Reference

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    They never get smaller, only bigger. It gets to the point that checking valve clearances is a waste of time. I know I'm gonna get lambasted for this comment, but it's what I've observed over the years

    YMMV, etc, etc.
     
    TurcoLoco likes this.
  4. Kevin.NZ

    Kevin.NZ Cruisin' Guzzisti

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    I was adjusting my Breva 1100 (standard tappets) regularly up to about 10,000Kms , its settled down now and I'll check maybe every 20,000Kms or when I start to hear them and as Dave says they hardly ever move, maybe 0.02mm bigger. Got 80,000Kms on the clock.
    BTW TurcoLoco I'm sure you mean 0.10-0.15mm, also 0.004 and 0.006th equate to 0.102 and 0.152mm.
     
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  5. scottmastrocinque

    scottmastrocinque Scott Mastrocinque GT Famiglia

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    10mm - 15mm is DEAD WRONG by two orders of magnitude!

    Check again please!
     
  6. TurcoLoco

    TurcoLoco Just got it firing! GT Contributor

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    Interesting. The bike is currently at 6100 miles, it was checked around 800 miles (for the 600-mile service). The engine seemed a little noisier recently and I was suspecting the valve clearance might be off. You might be right and it might be a waste of time but I am kinda of curious and do not mind the experience as I get the learn more about the bike.

    Yes, you are correct. I mean 0.10mm-0.15mm

    It was an error on my part. As Kevin corrected, I meant 0.10-0.15mm
     
  7. John Warner

    John Warner Cruisin' Guzzisti GT Contributor

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    Apologies for the late reply.
    I'm now at 45600 miles, Clearances were set at 0.1mm all round when I fitted the Roller kit at 28300.
    Not altered since then, checked at 34700 & 44150 miles

    Runs very quietly (for a Guzzi).

    Another service due soon.
     

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