I did eventually order an ethanol resistant float for the later 150CD(2) carb. After studying it for a while and comparing it to the early type float I decided I would go ahead and see if I could modify the new float to work in place of the old one.
I cut off one of the little float valve actuating "paddles" as one was going to interfere with the early type float bowl. I made a 3/16" long spacer out of a piece of small brass tubing. The spacer fits on the pivot shaft and positions the float a bit to one side. It is required since the later floats have narrower mounting pivots than the early float. Finally I reshaped the new float's arms a bit to match the angle of the early float's arms.
In the end I was able to get the new float to look (sort-of) like the old one when installed and I as able to set the float height as presented in the early shop manual. The paddle that closes the float valve is just marginally large enough to actuate the float valve but it does look serviceable.
All this was done on a spare carb. I am currently running a spare early float on our car and will save the converted float for the next time we have a float failure. So mechanically you can adapt the new to fit in place of the old. What is left is to confirm is that the new float will work and that the same float valve adjustments apply.
Doug L.
--Previous Message--
: The word from Joe Curto is that the old
: style 150CD carb float I need is NLA.
:
: I checked the fit of a later style
: float in the early carb and if I make a
: new pivot pin, cut off one of the float
: valve arms, and make a spacer bushing
: to push the float to one side... I
: MIGHT be able to use the later floats
: in the early carb. The only concern I
: have about this is determining if the
: resulting fuel level in the carbs would
: be the same when the floats are set to
: the book. I need to test this on the
: bench before committing to try it on
: the car.
:
: If I decide to take on this project
: I'll document what I do and post it
: here for other early GT6 owners facing
: this in the future.
:
: Doug L.
:
:
: --Previous Message--
: I have not talked with Joe Curto yet
: but
: I have contacted Burlen (current owner
: of Zenith Stromberg) in the U.K. They
: only have the later style floats.
:
: I took a later float out of a spare
: carb and compared it to what I need and
: I even tried to fit it to a spare,
: early 150CD carb. With tweaking,
: making a spacer bushing and new pivot
: pin I may be able to use the later
: floats. However, I'll call Joe C.
: first to see if he has an alternative.
:
: Doug L.
:
:
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