VCCA Home Forums TECHNICAL - 1945 AND EARLIER 1912-1928 RAJX-O Carter Carburetor

The Stand Pipe in my carb is broken and I know they are available, but how do you get the old one out and the new one in?
All the searching I've done has not helped me with the how to's.

For best results send it to one of the experts located in the back of the G&D. Not a task for the timid.

It takes a special tool to remove the old standpipe and to install the new one.

:) :grin:

Not only does it take a special tool to remove and install the standpipe but also it is likely that you will need a new venturi. It is possible to remove the old venturi if you are extremely lucky and know what you are doing. I have managed to remove a venturi without breaking twice over the years.

I agree that if a carb only needs cleaning and replacement of the gaskets then many people can do it. If it requires more extensive repairs then an expert on those particular carbs is your best choice. Each carburetor has its own peculiarities and the generalist rebuilders may not know of them.

Hi,
To change the stand pipe,the high speed jet(to break out old pot metal) and venturi have to be removed (stand pipe dia is larger than the opening).I have rebuilt a couple.I had to have a special tap made to chase the threads.(not a standard thread and costed $125.00 ).The brass stand pipe and venturi are available from Gary Wallace(I would say the best mid 20's Chevy parts supplier in the world). http://www.20schevyparts.com/ Regards,tinsmith_ray

If you have successfully rebuilt your own carburetors then I applaud you. Some are easy to repair but others are not. Just depends on what they have been exposed to and how many "mechanics" have worked on them. And how easy each part can be removed.

To rebuild one of those early Chevy updraft carburetors correctly you need two or three non-standard taps (can be ordered from a few makers) and several standard ones. Most threads are 24tpi despite the diameter. Then there is the tap for the accelerator pump on the 29-31 Carter carbs. It truely is a special built one. It took me several years before I found someone who would make it. Cleaning the threads with a dental pick was not fun. A venturi puller, one of three standpipe sockets, a puller for the low speed jet plus several screwdrivers, a couple of wrenches and an assortment of pliers and you are ready to do damage to the carb or not if you are lucky.

Damage? Yes too many people grab one screwdriver to use on each part. Or one that does not have a sharp blade. Then it slips out of the slot a couple of times and takes a bit of the metal each time. Then they decide to take it to the local carb butcher. I have seen their work! The might be up on the AFBs or Holleys but those old Carters are a different story. The "if it does not come apart, use more force, if it breaks, it needed fixing anyway" theory is their matra. I know 'cause I have seen their work. A recent one cost the owner nearly $ 200 to replace the busted parts and a Model A expert worked on.

Oh, I almost forgot the specifications. Yes those specs are there for a reason. They tell the original sizes and location of each hole, metering rod and other critical parts. Then the diagrams and Carter instructions to make sure to get it back together with the correct parts installed in the right places. Darn I also forgot the drill bits. Yup, those itzy-bitzy little pieces of twisted wire that you check each hole to make sure that it is the correct size. Or to resize when necessary.

When you are finally done and install the spiffed up carb only to have it run the same as when you started what do you do next? Hppefully that will not happen.

If you don't feel comfortable then I suggest opting for someone who knows what he is doing to work on any carbs. Right Skip?

Hi Chipper and everyone else,
I own three 4 cyl cars.25 & 26 four door sedans ,and a 27 2 door
I got into doing carbs by accident.I bought about a half ton of old 4 cyl Chevy parts a few of years ago(still have a lot left) from a guy in Cleveland OH for $300.00(WHAT A DEAL !! )16 carbs ,6 starters,a few distributors,a hundred rocker arms,flywheels,etc.One RAKX-O already had brass parts installed.I put in a rebuild kit from Gary,and sold it on eBay for $300.00.(Try to get that price from a major rebuilder !!)I have the main tools for doing 25 thru 28 carbs.I have since got into restoring wiper motors too.I am still learning but what a great learning experience. Love them 4 bangers.tinsmith_ray