65 carb problem
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The Classic Cadillac Forum Discussion, 65 carb problem in Past Cadillac Vehicle Discussion; Hi So I lifted the air cleaner from the engine and I found a broken rubber thingie, I think it ...
  1. #1
    tudor_47 is offline Cadillac Owners Member
    Automobile(s): 1965 4dht Sedan Deville
    Join Date
    May 2014
    Age
    49
    Posts
    27

    65 carb problem

    Hi

    So I lifted the air cleaner from the engine and I found a broken rubber thingie, I think it is the acc_pump.
    I am wondering can I get the rubber boot as a seperate part somewhere? and can it be replaced whith carb still in car?
    I know the rubber part is included in a complete carb overhauling kit, but I do not want to completly redo the carb at this time as it is driving season.

    Other than this the air filter must have been in the car for ages so that is up for replacement asap.
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  3. #2
    chrisntam is offline Cadillac Owners Fanatic
    Automobile(s): 1970 Deville Convertible
    Join Date
    Oct 2012
    Location
    North Texas
    Posts
    139

    Re: 65 carb problem

    What kind of carb is it? Rochester? Carter? I don't know what that car came with. If Rochester, try these folks: http://quadrajetparts.com/rochester-...rts-c-128.html

    If it's a carter carb, maybe they can give you a lead.

    Hope it works out for you!

    chris.

  4. #3
    aussiejohn is offline Cadillac Owners Member
    Automobile(s): 1964
    Join Date
    Jan 2014
    Location
    Highett, Victoria Australia
    Posts
    46

    Re: 65 carb problem

    G'day,

    It's difficult for me to say what carb, but it's in the right position on the carb if it's a Qjet. However, don't just replace the external rubber boot. Today's fuels are more than likely to contain ethanol and the factory 1965 rubber piston seal inside the plunger doesn't like ethanol. It deteriorates quickly when exposed to ethanol, so you should buy a modern accelerator pump which is resistant to ethanol. Cliff's Performance and some others sell these, so I would advise you to do your research before the accelerator pump fails and leaves you stranded somewhere.

    Regards from Down Under.

    aussiejohn

  5. #4
    CaddyGas's Avatar
    CaddyGas is offline Cadillac Owners Fanatic
    Join Date
    Jun 2012
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    246

    Re: 65 carb problem

    That area looks like it is wet with fuel, if it's leaking I wouldn't want to drive it in case of fire. Better to be safe and get it fixed, and yes the top has to come off. If you do it be careful of the metering rods, they can't be bent. Depending on your carbs condition, I probably would get it redone with the top off not farther to go.

    As aussiejohn said do some research, the qjet aren't as simple edelbrocks or holleys.

  6. #5
    tudor_47 is offline Cadillac Owners Member
    Automobile(s): 1965 4dht Sedan Deville
    Join Date
    May 2014
    Age
    49
    Posts
    27

    Re: 65 carb problem

    Thanks guys!

    It is a rochester 4GC

    I have companies that will supply a repairkit for the carb,
    are they all now containing the new type of seals for the acc-pump or is that something I need to get extra?
    if/when I lift the top of the carb is there something else that I should replace?

    again thanks!
    /Johnny

  7. #6
    CaddyGas's Avatar
    CaddyGas is offline Cadillac Owners Fanatic
    Join Date
    Jun 2012
    Posts
    246

    Re: 65 carb problem

    On the carb all the gaskets, float, needle and seats, plugs. I would let it sit in a bucket of carb cleaner, you can get those at any local auto store. There are books on how to do this.

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