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Thread: Fulvia S1 gear shift knob.

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    Fulvia S1 gear shift knob.

    Greetings from Oklahoma

    It seems so simple, but over the years, I've come to learn the benefit of asking questions before breaking things. I've been trying to remove the shift knob from my Fulvia S1. If I had to guess, I want to believe it's a normal, right hand threaded knob. I've tried to turn it by hand, then with a strap wrench to protect the knob, but it's either too tight, or I don't understand how it's attached. There's a company here in the US that makes custom gear shift knobs, but I need to know how this one is attached before I can order one. The company makes a four speed pattern engraved with right hand down reverse as is the design of my car. I suppose some might believe the plain gear knob is more elegant. That's probably true, until I have to let someone else drive my car - Yikes. Anyway, it's something I'd like to try. If anyone knows the thread size (if it is threaded), that would be wonderful. As always, any help at all is appreciated.

    Thanks again,

    Michael

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    Legendary Lancista Marnix's Avatar
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    Re: Fulvia S1 gear shift knob.

    I gather we are talking the "leva lunga" (the version with the long gearbox lever)? The knob is quite hard to remove, but it is screwed on, right hand thread, and with very carefull handling and patience can be unscrewed (there is a rubber "silent block" filling in the knob, be careful not to destroy that).

    I got a spare in my workshop, if my (sometimes fading) memory can remember it till when I go there today, I will try to see what the thread exactly is.
    Lancia Fulvia 2C 1964
    Lancia Fulvia Coupe Rallye 1,3 1968
    Porsche 924 1979
    Alfa Romeo 33 1.4IE 1993

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    Re: Fulvia S1 gear shift knob.

    It appears to be M12, fine thread, right hand. I am not entirely sure yet, hold your horses.
    Lancia Fulvia 2C 1964
    Lancia Fulvia Coupe Rallye 1,3 1968
    Porsche 924 1979
    Alfa Romeo 33 1.4IE 1993

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    Re: Fulvia S1 gear shift knob.

    Quote Originally Posted by Krafty View Post

    I suppose some might believe the plain gear knob is more elegant. That's probably true, until I have to let someone else drive my car - Yikes.
    They have to figure out how the ignition switch works first lol.

    I tried to unscrew mine briefly but with no luck.. Didn't want to mess anything up. Maybe take the whole lever out and get some penetrant oil in there?

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    Re: Fulvia S1 gear shift knob.

    I can confirm it is M12, stud is 15mm long, pitch 1.5 (fine). I have two spares. One came off without much trouble, the other wouldn't bulge. Penetration oil is maybe a good idea, but it has to get across the ridge of the lever-to-M12 thread
    Lancia Fulvia 2C 1964
    Lancia Fulvia Coupe Rallye 1,3 1968
    Porsche 924 1979
    Alfa Romeo 33 1.4IE 1993

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    Legendary Lancista lancialulu's Avatar
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    Re: Fulvia S1 gear shift knob.

    Try some gentle induction heating around the knob?

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    Re: Fulvia S1 gear shift knob.

    Have been thinking along the same line. I tried heating the lever with a heat gun (but didn't want to overdo it) shielding the plastic knob itself. No joy so far. But for me, there is no urgency to get it off, it is just a spare, and if it comes to that, the knob doesn't have to part.
    Lancia Fulvia 2C 1964
    Lancia Fulvia Coupe Rallye 1,3 1968
    Porsche 924 1979
    Alfa Romeo 33 1.4IE 1993

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    Re: Fulvia S1 gear shift knob.

    This is great help! A thousand thanks. Penetrating oil seems like a challenge. I'd have to either take the shift arm off, or turn the car upside down. I should be able to warm the parts with a heat gun and try again. In any event, I can contact the shift knob people to see if they can offer me this one in the right thread. Here's the knob I'm considering. It's also available in black with white inscription. Any preferences with a black interior? Thanks again, Michael

    Click image for larger version. 

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    Legendary Lancista Marnix's Avatar
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    Re: Fulvia S1 gear shift knob.

    Quote Originally Posted by Krafty View Post
    Penetrating oil seems like a challenge. I'd have to either take the shift arm off, or turn the car upside down. I should be able to warm the parts with a heat gun and try again.
    Taking out the lever is easy enough. You will have to I think. Spam the knob between two wooden plates in a vice, carefully, as to just apply enough force but not too much. Span the top end of the lever also between wooden plates (in order not to damage the chrome) in something else, like a non-fixed vice. You have to span it at the top, the lever is hollow, and twists (torques) when you put torque at the lower end. Then try gently to get it turning. The moment there is some movement, the rest will be easy. It is mostly that hard because there is a hard ridge in the transition between the round bar at the top of the lever and the M12 smaller diameter. The knob is most likely turned hard against that ridge.

    I may have it wrong about the rubber filling of the knob, it is probably solid plastic inside capturing a brass inserted nut part.

    Be patient. With patience, it will come lose. Just don't force it or you may break it.

    If it would be my choice, I would take the black with white inscriptions, as the original knob was black. But that is very obviously a matter of personal taste.
    Lancia Fulvia 2C 1964
    Lancia Fulvia Coupe Rallye 1,3 1968
    Porsche 924 1979
    Alfa Romeo 33 1.4IE 1993

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    Re: Fulvia S1 gear shift knob.

    I should have specified: SOFT wooden plates, that will dent in around the knob and the lever, as to increase the hold on them.
    Lancia Fulvia 2C 1964
    Lancia Fulvia Coupe Rallye 1,3 1968
    Porsche 924 1979
    Alfa Romeo 33 1.4IE 1993

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