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Major Service For 355 Video

Discussion in '348/355' started by kalinsd, Nov 30, 2024.

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  1. johnk...

    johnk... F1 World Champ
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    #51 johnk..., Apr 27, 2025
    From my perspective it isn't about whether or not to time the cams but how much the timing can change due to a belt swap. In the video the guy says the heads were removed and milled due to a valve job. That is a very different issue since cam pulley to drive pulley distance will change due to the milling and reassembly with new gaskets.
     
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  2. jjtjr

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    #52 jjtjr, May 1, 2025
    That wasn't my experience. My heads didn't have a groove machined into them. The cam seal housing had a groove to hold the o-ring.
     
  3. yelcab

    yelcab F1 World Champ
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    #53 yelcab, May 1, 2025
    You are correct. I confused it with the 328 I was working on.

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    Nevertheless, if the opinion is "355 cam timing degreed is needed when the cam sprocket (items 11/12/13/14/15) is removed from the cam" then the removal of the oring/cam seal assembly (iyems 25/26/27) requires the removal of the sprocket from the cam shaft, which then requires the cam degreeing to be done upon installation. And if you believe that you can just put everything back using cam marks, then more power to you. Do it your way.

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  4. INTMD8

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    #54 INTMD8, May 1, 2025
    Yes. Even put back the same there is enough play between the gear and pin that the cam timing can be slightly manipulated depending on which way it's loaded before you torque the bolt.
     
  5. jjtjr

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    #55 jjtjr, May 1, 2025
    I degreed my cams before and after installing new belts. It's easy enough to do so why not?
     
  6. Qavion

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    #56 Qavion, May 30, 2025
    Last edited: May 30, 2025


    Lots of interesting stuff in this episode.

    What's that box next to the Motronic ECU at 7:39?
     
  7. Qavion

    Qavion F1 World Champ
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    #57 Qavion, May 30, 2025
    Disregard. It's the (F1) Clutch Position Interface Unit.
     
  8. ShineKen

    ShineKen Two Time F1 World Champ
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    #58 ShineKen, May 30, 2025


    I have yet to watch the new videos, but saw a post on FB regarding the valve job.

    The elephant in the room is why did OE sintered steel guides from a 99 car need a valve job ?? @Targatime


    He also recommended “manganese-bronze” guides. You think Nick has been reading some of our old posts John ;).



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  9. ShineKen

    ShineKen Two Time F1 World Champ
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    #59 ShineKen, May 30, 2025
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  10. Qavion

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    #60 Qavion, Jun 27, 2025
    Balancing /Synchronizing ITBs

     
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  11. Qavion

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    #61 Qavion, Jul 18, 2025
    Latest video from Nick.... Tips on smog tests, Bosch brake bleeds and front bumper installation/adjustment

     
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