carb advise needed

  1. Fernando

    Fernando Enthusiast

    Messages:
    36
    Location:
    Portugal
    Hello My zenith 28 if is giving me problems, so I believe it's time to replace it for something better, but like always my first step is to come here asking your advises.
    So I am thinking of getting a zenith 32 if7 but I don't know if this is the best option for me My car is an 1991 gtl with 688 D7/12 engine
     
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  2. JdeW

    JdeW Enthusiast

    Messages:
    294
    Location:
    Laarbeek, The Netherlands
    Hello Fernando, a bigger carb (32mm instead of 28mm) also needs another manifold with the 32mm carb fitting.
    I've the same engine (688D7/12) and Zenith 28IF in my GTL and never had any problems.
    Most common issues are that somewhere false air is sucked in, a wrong positive valve setting or that the carb bottom is crooked by overthightening the nuts.
    There is a lot to find about carb issues on this forum, just use the search option.
    Regards, Joop
     
  3. Fernando

    Fernando Enthusiast

    Messages:
    36
    Location:
    Portugal
    my mechanic told me that the carb is droping gas in low rpm when he shouldnt
    and when im driving in low rpm the car shakes
    I can replace it for brand new zenith 28if
    but if Im going to change it why not do it for something better
     
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