Valve clearences... | FerrariChat

Valve clearences...

Discussion in '308/328' started by FastandSlow, Oct 4, 2025.

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  1. FastandSlow

    FastandSlow Rookie

    Sep 7, 2025
    19
    Full Name:
    Paul Young
    I have purchased a 1986 Ferrari 328 GTS (Euro) with 37k miles, it is currently being serviced and prepped to hand over to me. The car has been gone through and all issues addressed, a weeping rear main seal being something that needed attention. However the car has not been maintained by a shop by the previous owner who was an engineer. I have no contact with the previous owner only the sales person, who has now sent the car to a quaified Ferrari race shop.

    My question is should i ask for the valve clearances to be checked as a matter of course, or should i allow the shop to dermine if they need to be done. I do not know how you would determine that other than you have noisey tappets. I have been for a test drive by the owner of the sales garage, at some point this car was fitted with a Larini exhaust (great sound but not switchable to a quiet mode so i have had it replaced with a capristo valved exhaust, anybody wants a Larini SS exhaust in good condition lmk). I could not hear any valve train noise but as the sales garage had yet to service the car with a new cambelt he did not take the car passed 6500k. It felt peppy but i felt the last 1000 revs would have revealed a bit more but was happy he didn't push it, planning to get everthing sorted beforehand.

    So i had also asked a compression test be done and this has come back with no issues, the last thing on my list is the valve clearances, i had a mini cooper s and used to do them myself, half as many and probably twice as accessible, but to be honest outside of that car i have not had much experience.
     
  2. Zenobie

    Zenobie Formula Junior

    Feb 22, 2021
    262
    Belgium
    Full Name:
    CO
    #2 Zenobie, Oct 4, 2025
    Last edited: Oct 4, 2025
    Hello and succes with the car
    When you have the right tools it is a simpel as on Fiat/Lancia/Alfa romeo and manny others :)
    When de actual distance is to small you hare them tickking when the gap is OK or to wide you here nothing special.
    Thr best way to know is to cheq the gap.............that a child with can handle gauge is able to :)
     
    FastandSlow likes this.
  3. DanielGA

    DanielGA Karting

    Mar 19, 2018
    209
    Midwest
    Full Name:
    Daniel A.
    Access to the front bank is probably the hardest part. Rear bank is easy. Once you have things dissassembled and engine lid removed, the actual valve clearance part is easy. Not that you have to remove timing belts so you might as well do a full timing belt change job...
     
    FastandSlow likes this.
  4. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,690
    San Carlos, CA
    Full Name:
    Mitchell Le
    Alfa do not have front bank snug up against the firewall with the engine lid over your head. Adjusting valves there is a chore, but checking clearance is easy enough.
     
    FastandSlow likes this.
  5. johnk...

    johnk... F1 World Champ
    Owner

    Jun 11, 2004
    11,291
    CT
    Full Name:
    John Kreskovsky
    If the car has gone 37k miles and you are unsure of when (or if) valves clearances have been checked I would suggest you have them checked now.
     
    FastandSlow and ChevyDave like this.
  6. FastandSlow

    FastandSlow Rookie

    Sep 7, 2025
    19
    Full Name:
    Paul Young
    This is the answer i was looking for, It's not something i am afraid or unable to do but in this case since it is not on a service receipt that it has been done and since the seller has agreed to fully service the car incl. a cambelt change i thought it should part of the service at this mileage.

    At some point in the future when i have my own little workshop with some tools i will probably tinker and adjust most things myself,
     
  7. FastandSlow

    FastandSlow Rookie

    Sep 7, 2025
    19
    Full Name:
    Paul Young
    Just wanted to thanks for the advice, mechanic checked the clearences and found 16 needed adjustment.
     
    johnk... likes this.
  8. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,690
    San Carlos, CA
    Full Name:
    Mitchell Le
    Then it would be better to just remove the cam shafts and exchange the shims. A lot less headache that way.
     

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