Free Carburetor Repair Manuals

Manuals are downloaded as PDF files. Some are very large and might take some time to download, depending on your internet connection.Please do not distribute these manuals. Instead giving out the link to this web page would be appreciated. Link is as follows: http://carburetor-blog.com/?page_id=335Please keep in mind that these manuals may span several carburetor models and may not be your exact carburetor. Use these manuals as a general reference only. Don’t forget to visit the technical pages for your specific carburetor. More manuals for specific carburetors may be available there.

 

Autolite, Ford & Motorcraft Manuals & DVDs

Carter AFB Carburetor Manual
Carter AS Carburetor Manual
Carter BB Carburetor Manual 1938 & Prior Also works for bbr1
Carter BB Carburetor Manual 1939 & Later
Carter Brass Bowl Manual
Carter BBD Carburetor Manual
Carter Divorced Choke Adjustment – Older 1955
Carter RBS Carburetor Manual
Carter Thermoquad Carburetor Manual
Carter UT Updraft Carburetor Manual
Carter W-0 Carburetor Manual
Carter W-1 Carburetor Manual
Carter W-1 Climatic Control Carburetor Manual
Carter WA-1 Carburetor Manual
Carter WCD Carburetor Manual
Carter WCD Carburetor Manual – 1962 Rambler – In general, this is ok for any WCD
Carter WCFB Carburetor Manual
Carter WDO Carburetor Manual – 1938 & Earlier
Carter WDO Carburetor Manual – 1939 & Later
Carter WGD Carburetor Manual
Carter YF Carburetor Manual – Older YFs
Holley 94 Carburetor Manual
Holley 740 Carburetor Manual
Holley 852-FFG Carburetor Manual

Holley 885 Carburetor Manual
Holley 885-JJG & 885-JJGC for General Motors Trucks
Holley 1904 Carburetor Manual

Holley 1908 Carburetor Rebuild Manual
Holley 1920, 1940, 1945, 2210, 2245, 5200, 5210, 5300 Carburetor Manual
Holley 1940 Carburetor Manual
Holley 2110 Carburetor Manual

Holley 2300 Corvette – 1968-69 Tripple Carburetors
Holley 2300 Carburetor Manual
Holley 2300 Carburetor Rebuild Manual – from a 1962 repair manual.
Holley 2300C, 2300G, 4150C, 4150G, 4150MG, 4160C & 4160 w/mechanical secondarys
Holley 4000 Carburetor Manual
Holley 4000 Visual Instruction Manual
Holley 4150C Carburetor Rebuild Manual
Holley 4150EG Carburetor Manual
Holley 4150EG Governor Manual
Holley 4150G Carburetor Manual
Holley AA-1 (electric choke) GM Trucks Carburetor Manual


Mercruiser Weber Marine Carburetor Manual


Motorcraft 2100 4100 Carburetor Manual
Motorcraft 2700 7200 Carburetor Manual – large file, but great manual.


Rochester 2G, 2GC Carburetor Manual
Rochester 4G, 4GC Carburetor Manual
Rochester AA Carburetor Manual
Rochester B, BC, BV, AA, BB Carburetor Manual – Be patient, this is a large file.
Rochester BC – Published in 1951
Rochester Dualjet Carburetor Manual
Rochester E2SE Carburetor Manual
Rochester E4ME-E4MC Service Manual
Rochester Monojet Carburetor Manual
Rochester Triple Power Pack Manual
Rochester Quadrajet Carburetor Manual
Rochester Varajet Carburetor Manual

Solex 44PA1 Rebuild Instructions
Solex 44PHH Carburetor Manual
Solex Selection and Tuning of the Carburetor


Stromberg AA Series Description & Operation
Stromberg used on Government Vehicles AA, SF, BXV
Stromberg Service Manual – many Strombergs represented here.
Stromberg WW Carburetor Manual
Stromberg WW Carburetor Manual 1955 Edition

SU – Servicing, Testing & Repairs   Zenith 28 228 Rebuild Manual


Zenith 63M 263M Marine Rebuild Manual
Zenith Gov-U-Retor Specification Chart
Zenith Gov-U-Retor Service Manual  


Marvel Schebler


Recent Posts

The B&B or Ball & Ball Accelerator Circuit Gone Bad

checkballdischarge b&bpump check inlet

 

 

 

 

Here is the question. When I accelerate the engine bogs down, or dies.
Assuming the electrical system is OK, because the distributor advance will act the same way, so check that out also.
The first thing to do is turn the engine off and look down the bore of the carburetor. Pump the throttle and you should see a squirt of gas come out of the main discharge. This is located just under where the carburetor top mounts (see #28).
No squirt, or weak squirt indicates a blockage in the accelerator pump circuit. Remove the aluminum plug where the main discharge is located. See #27 in the illustration. This plug is included with our Carter B&B carburetor kits. Remove and clean the main discharge jet #28. Be careful removing this jet. They get stuck and will break easily and if it doesn’t come out easily, then leave it in and clean it out the best you can. Run thin wire through the jet to make sure it is clear.
Your carburetor may have an intake check ball located at the bottom of the accelerator pump well with a retainer wire holding it in the hole. If you don’t have the hole, then a check ball is not necessary here. The action of this part is as follows: When the pump returns to the top, gravity pushes fuel up through the bottom hole and lifts the check ball up, allowing the pump well to fill up with fuel. You can add some fluid into the float bowl and watch to see if this does happen. If your carburetor kit includes an aluminum check ball, then this is where it resides. If you can’t get fluid through this hole, then it is plugged up. Try blowing air through it. When accelerating this check ball will close keeping fuel from going back to the float bowl. Seat this check ball (only if not aluminum) by tapping on it with a brass drift punch.
In the bottom of the float bowl close to the accelerator pump well will be another check ball inside a small column. The column will have either a cap screw, or an aluminum plug covering the check ball (#29 & #30). This is the discharge check ball. When pressing down the pump, fuel will force this check ball off the seat allowing fuel to reach the main discharge.
Test the 2 check balls this way. Hold down the discharge check ball with a brass drift punch. With the pump well full of fluid press down on the pump. You should feel some resistance. If you suspect this ball to leak under this test, tap on the check ball with a brass drift punch to seat it. Now press down on the pump (full of fluid) and see if the fuel lifts up the discharge check ball.
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