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carb advise needed

Fernando

Enthusiast
Messages
45
Location
Portugal
#1
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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JdeW

Enthusiast
Messages
335
Location
Laarbeek, The Netherlands
#2
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
 

Fernando

Enthusiast
Messages
45
Location
Portugal
#3
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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