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Grrr....Valve Clearance

Discussion in 'Cal 1400 8V' started by CBJoe, Apr 18, 2020.

  1. kiwi dave

    kiwi dave GT Reference

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    That's interesting that for round head Guzzis (and Harleys) the clearance reduces. I guess everybody should check theirs for each model they own. I know that dealing with a hot motor to check valve clearances ain't easy.
     
  2. Moto-Uno

    Moto-Uno Cruisin' Guzzisti

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    Half correct , the HD valve clearances increase ( a lot ) , the roundhead Guzzi clearances decrease . Which I find hard
    to fathom . HD and Guzzi , both alloy cylinders and heads , both alloy pushrods , both with iron rocker box supports that
    4 head studs go through and single cam and also alloy cases . Still has me kinda baffled , but I was called out on it and
    took it to heart to prove him wrong ( My Bad ). That proved me to be wrong . Now I know . Peter
     
  3. moparnut72

    moparnut72 Tuned and Synch'ed GT Contributor

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    What Harleys are you talking about? Harleys have had hydraulic lifters for many years. No adjustments necessary except for preload if you are using adjustable pushrods. Then you take out the slack and then turn so many more flats to set them. I am confused.
    kk
     
  4. Dinsdale Piranha

    Dinsdale Piranha Cruisin' Guzzisti GT Contributor

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    What does it matter? The factory specified clearances are specified as they are to be correct when the engine is at running temp. Set them within tolerance cold and they'll be within tolerance hot. Easy peasy!!
     
    just James likes this.
  5. kiwi dave

    kiwi dave GT Reference

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    Where did you get this information from? The service manual doesn't mention it, in fact quite the opposite.

    extracted from SS manual B043157.jpg
     
    John L likes this.
  6. Moto-Uno

    Moto-Uno Cruisin' Guzzisti

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    ^^^ That was the point of the discussion , they have hydraulics because the clearance grows so much with heat .
    My reference was to the fact that the Guzzi engine with so many similarities in design actually had clearances
    shrink with heat . Hope that's a bit clearer
     
  7. kiwi dave

    kiwi dave GT Reference

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    The Cali 1400 does not have hydraulic tappets.
     
  8. Dinsdale Piranha

    Dinsdale Piranha Cruisin' Guzzisti GT Contributor

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    I used a smidgeon of common sense. Do you ride around on your bike all day with the engine cold? (If so, how?) Of course they need to be correct when the engine is at its designed running temp.
     
  9. Moto-Uno

    Moto-Uno Cruisin' Guzzisti

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    ^^ I believe you may have missed the remarks starting with reply # 20 .
    In particular when reference was made to " Le Mans 2 " .
     
  10. Hydrolastic

    Hydrolastic Tuned and Synch'ed GT Contributor

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    It might not have individual tappets for each valve like the P.I. engine, but the 1400 engine manual appears to say differently.

    1400Camandtappets.PNG
     
  11. DeadEye

    DeadEye Cruisin' Guzzisti

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    And titanium gauges ?
    ( so the gauge doesn’t expand when used on the Hot engine )

    WHAT !
    You want us to check the gap of a Running engine,
    i tried but the wrenches kept flying off, and it was squirting so much Hot oil on my Covid face shield, I could hardly see !
     
    Last edited: Sep 22, 2020
    Moto-Uno and Rickhinnz like this.
  12. roadventure

    roadventure High Miler GT Famiglia

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    No.... why would you do that? It is counter to anything having to do with adjusting valve clearances. Get the engine to TDC, and then check with the engine COLD per the manual.

    "ADJUST WITH COLD ENGINE, WITH PISTON AT TOP DEAD CENTRE (TDC) IN COMPRESSION
    STROKE (VALVES CLOSED)"


    Come on guys, do your reading instead of depending on "opinion". The only opinion that counts is that of the manufacture.
     
    Moto-Uno likes this.
  13. Moto-Uno

    Moto-Uno Cruisin' Guzzisti

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    OMG , Read the manual ! What next , actually follow the procedure :mad: . Peter :)
     
  14. DeadEye

    DeadEye Cruisin' Guzzisti

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    Heretic - He's a Witch He's a Witch Burn him !!!!
    That's CRAZY talk ... but Marywana IS legal out there (BC) and it 5 O'clock somewhere.
    ( Now were going to get in trouble cause were just Goofing off... sorry )
     
    Moto-Uno likes this.

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