Engine and gearbox drain plug washers | FerrariChat
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Engine and gearbox drain plug washers

Discussion in '308/328' started by Yoric, Dec 1, 2024.

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  1. Yoric

    Yoric Formula Junior
    Rossa Subscribed

    Jan 8, 2005
    383
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    Yoric
    #1 Yoric, Dec 1, 2024
    The NAPA # 704 1356 copper washer is a perfect fit for the early (carbureted) 308 gearbox drain plug. Is there a corresponding copper washer for the engine sump drain plug available from NAPA or other local parts houses?
     
  2. GT4:13432

    GT4:13432 Rookie

    Feb 20, 2020
    38
    Australia
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    Dave
    #2 GT4:13432, Dec 1, 2024
    On my 1977 308 GT4 they're all the same. Engine sump, gearbox drain, gearbox overflow / fill, transfer case drain and transfer case fill. 22mmx27mmx1.5mm.
     
  3. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,806
    30°30'40" N 97°35'41" W (Texas)
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    Steve Magnusson
    #3 Steve Magnusson, Dec 1, 2024
    Is this a trick question? AFAIK, the 308 can use the same copper washer for both (22mm ID) -- although F specs different part numbers in various places for a 28 mm OD versus a 27mm OD IIRC.

    If you've got something very different than those sizes, maybe you had some sort of "repair"?
     
  4. Yoric

    Yoric Formula Junior
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    Yoric
    #4 Yoric, Dec 1, 2024
    Thank you both for replying. And, no, Steve, it's not a trick question--I apologize if it sounded that way. I just wanted to make sure that the gearbox washers I have on hand also fit the engine drain plug. Now I know not only that but the other plugs GT4 points out. Already got plenty on hand.
     
  5. Sergio Tavares

    Sergio Tavares Formula 3

    Nov 15, 2018
    1,308
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    Sergio Tavares
    #5 Sergio Tavares, Dec 2, 2024
    You can use the old again if you annealed them to red hot w blowing torch
     
    bernieb and Nuvolari like this.
  6. bernieb

    bernieb Karting

    Apr 16, 2007
    215
    Alberta Canada
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    Bernard J Bonertz
    #6 bernieb, Dec 2, 2024
    I've been re-annealing for 15 years or so on my 3 F-cars. Works like a damn.
     

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