Jump to content

Stromberg carburetor question


Buick35
 Share

Recommended Posts

I have a down draft two barrel Stromberg on my 35 Buick and my question is should I be able to see gas squirting into the carb. with the engine off while pumping the accelerator ? I can't and I am thinking I have a bad accelerator pump,am I wrong? It starts and runs fine when I squirt has down the carb.Thanks,Greg.

Link to comment
Share on other sites

Accelerator pump is the likely problem. Check the linkage first and a possible clog at the squirter jet. I’ve had to replace all the diaphragms in my carbs for ethanol gas. Dries out and deteriorates them quickly. 
Simple and cheap fix. Best of luck

Link to comment
Share on other sites

It is possible your accelerator pump is bad.

 

It is possible nothing is wrong with the pump.

 

From the "troubleshooting" section of our website:

 

Accelerator pumps

 

Accelerator pumps

 

Often the accelerator pump gets the blame for other problems. It is very easy to test the function of the accelerator pump. Start the engine, and warm to normal operating temperature. Shut off the engine. Remove the air cleaner. The choke butterfly should be fully open, as the engine is warm. Observe the pump jet in the carburetor, and with your hand, work the carburetor throttle to the wide-open position. You should observe a healthy squirt of fuel from the pump jet. A single barrel carburetor will normally squirt a single stream; while a two or four barrel carburetor will normally squirt 2 streams. If you see the stream(s) of fuel, the pump is working. It is important to start the engine prior to doing this test. With modern gasoline, it is quite possible the carburetor will be completely dry prior to starting. If there is no gasoline in the bowl, the pump will not work; and this would give a false result.

 

 

Jon.

  • Like 2
  • Thanks 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...