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How do I remove a carb?  
BlackT
New User | Posts: 2 | Joined: 11/07
Posted: 11/14/07
06:43 AM

I know that this is a basic question, but I'm a newb to all this and I'd hate my first delve into the automotive world to be a disaster.... So, here goes....

I have a 302 with a 2barrel carb. Pretty much stock everything considering I don't know the history of the car. I have power brakes and power steering with a vacuum advance distributor.

The question is, what lines are where on the carburetor and where do they go? And are there any tips and hints for an easy removal and reinstallation later? I am just changing out the lifters and I've never done any work with a carb and I'm not really in the mood for my car to blow up on me....    


 
TheSilverBuick
Enthusiast | Posts: 735 | Joined: 02/06
Posted: 11/14/07
07:39 AM

Find and use a method that's easiest for you to remember which vacuum lines went to which ports on the carb.  Pictures help, draw diagrams, get number stickers and number the ports and hoses as you remove them, etc.  When you become more familar with your car you may eventually just memorize them all or know what each accessory requires for a vacuum source.

Next is the fuel line. It will be under pressure unless the car has sat for a long time (even then it may still be), what I do is ratchet the throttle a few times, essentially flooding the carb but you aren't trying to start it, this will reduce some of the pressure as it has to refill the accelerator pump resevoir everytime you ratchet it.  The whole system shouldn't have more than about 6psi so we aren't dealing with high amounts of pressure, but you don't want to get gasoline in your eyes.  For tools, I'm assuming it's a Ford 302, and I've never looked at the fuel line on one, but there are really only two ways the fuel line connects to the carb. 1) By rubber hose on the fuel filter with a clamp or by a screwed in hard fuel line into the fuel filter. I would recommend a tubing wrench for removal of a hard line to prevent accidently rounding off the fuel line fitting.  If it's a rubber hose simply remove the hose clamp and hose.  This would be a good time to replace the fuel filter in either case.

All that should be left is the accelerator linkage and four bolts holding it to the manifold.  If you are pulling the intake I'd leave the carb on the intake but that is your decision.  I am not sure how the accelerator linkage is held on there, but removing clips be careful not to lose them.  Hope this helps.  


The Silver Buick- '77 Skylark coupe w/455&TKO-600, '72 Centurion Conv't - 455w/TH400, '67 T-bird 4Dr (suicide) w/428&C6. Needing to replace a '69 Firebird 400.

http://www.members.aol.com/thesilverbuick/Pictures/

 
BlackT
New User | Posts: 2 | Joined: 11/07
Posted: 11/14/07
03:06 PM

Thanks. I was pretty sure I knew what I was doing but it can never hurt to ask.... And that's another nice thing to know that I don't have to actually take the carb off the manifold.... Save me a carb gasket....  


 
powerdreams
User | Posts: 87 | Joined: 11/07
Posted: 11/14/07
04:35 PM

I agree, anything that you remove label it and its corresponding part.First disconnect the battery! Also upon re-installation take into account,that all of these components have fastener torque spcifications..................Also old carb gaskets get fuel soaked and dry up,causing vaccum and fuel leakage.A new carb gasket is a cheap and good idea,with a motor that has'nt run in a long time.Check all lines going to carb and inlet,replace cracked or worn hoses.  


 
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