Hitman's Pontiac Trans Am Page     |   1978 Pontiac Trans Am
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Carb Rebuild
     Rebuilding the carb was no easy task.  There are alot of small parts to lose, damage, or even forget where they went when you took them out.  I wouldn't recommend that you do this yourself unless you have someone with you who knows exactly what they are doing.  You can purchase a rebuilt carb, but I didn't have the extra $400 to spend.  I opted to spend $19.00 (and a 12 pack of beer) and recruit Dave from across the street to help with this project.  Now just like with any project that you do to your car, it is very important to mark any hoses or lines that you remove and even make diagrams of what you remove before you start.  That way you remember where they go when you are ready to put everything back together again.
     I marked all of the lines with a piece of masking tape and made a diagram of where everything went before I started to remove lines from the carb.  Once all of the lines were removed, I took out the four bolts that held the carb to the intake manifold.  Once it was removed, I placed a clean rag over the opening to the intake so that nothing fell into the engine.  Now that the carb was off of the car, Dave instructed me on what to remove and in which order.  As I removed the parts, I placed them in separate areas on the table with any screws that held them in place.
Once everything was removed and placed on the table, I started cleaning every little piece of the carb.  I used a couple of cans of carb cleaner and a nylon bristle brush to clean each part.  The larger parts were pretty easy to clean, but you have to be careful with the smaller parts as not to damage any of them.  I spent about 4 hours meticulously cleaning each and every part that was removed.  Once I was satisfied with the cleanliness of each part, I slowly started to put it back together.  Now with the rebuild kit that I purchased, it came with some new gaskets, accelerator pump, and a few other misc. parts.  I had to buy a new float and the coke pull-offs separately from the kit.  This is where once again I don't suggest doing this yourself unless you have some experienced help.  I basically worked my way backwards from how I removed the parts replacing the old parts with the new ones that came with the kit.  
     I didn't really document every step of this process because there was so many of them and because I don't want anyone to blame me when they don't do this the right way and mess something up.  That is why I have stated a few times that you must have someone with you that knows what they are doing.  And if you are the one who knows how to do it, then you shouldn't have to read this page.
     Once everything was back together, I placed it back on the engine and followed the diagrams to re-attach everything that I took off.  This is why the diagram is so important to do first.  Once it was back on the intake manifold, I was ready to start it back up and do the fine tuning of the carb to get it back in perfect running order.

Restoration Tips


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