68 deville 472 air pump belt
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500, 472, 425, 368 Discussion, 68 deville 472 air pump belt in Cadillac Engine Technical Discussion; i have a 68 472 cad that snapped an air pump belt.car has not seen road in 2 yrs. i ...
  1. #1
    caddman68's Avatar
    caddman68 is offline Cadillac Owners Member
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    Question 68 deville 472 air pump belt

    i have a 68 472 cad that snapped an air pump belt.car has not seen road in 2 yrs. i am trying to change the belt but cannot find out how to loosen air pump to install new belt.i have been looking for books on cadillac maintenance but cant find any.this is my first vehicle 23 yrs ago and wont part with it.the brakes are gone from sitting in garage all wheel cylinders and master cylinder are shot.air pump belt is my first plan of attack,any advice will help.thanks

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    JTraik is offline Cadillac Owners Enthusiast
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    Re: 68 deville 472 air pump belt

    Quote Originally Posted by caddman68
    this is my first vehicle 23 yrs ago and wont part with it.the brakes are gone from sitting in garage all wheel cylinders and master cylinder are shot.air pump belt is my first plan of attack,any advice will help.thanks
    I would leave the belt off! The airpump should be the least of your concerns at this point. It is an unecessary and completely inefficient smog control device anyway. However if your still interested in taking it off i can go out and get my FSM and look it up.

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    caddman68's Avatar
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    Re: 68 deville 472 air pump belt

    thanks for the reply on the air pump,i was going to delete putting the belt back on,but then realized what would turn the alternator?i know the air belt is seperate but nothing the alternator belt onto the fan just free wheels?

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    DaveSmed's Avatar
    DaveSmed is offline Cadillac Owners Connoisseur
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    Re: 68 deville 472 air pump belt

    It is a pretty strange setup. The air pump belt also turns the waterpump. Theres then a belt from the waterpump to the alternator. I remember the adjustment bolt being on the bottom, because thats where I had the prybar. That belt has to be pretty snug, as its prone to squealing since it drives so many components.

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    JTraik is offline Cadillac Owners Enthusiast
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    Re: 68 deville 472 air pump belt

    This is what happens when your engine has been apart for 8 months

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