Re: Stromberg EE-14 Power Jet
Posted by Ken_P On 2019/7/13 14:15:51
Pulled the top of the carb off to inspect float function. Interesting how it does run, very well, with the float cover off, although a bit of a fire hazard!
The float seems to operate smoothly, as does the accelerator pump. The book (Stromberg Manual) on this site calls for a fuel level of 15/32" below the top surface. Since my car was running rich, I thought the float would be too high, but it appears to be correct, or maybe even a little low. I did observe that the float moves freely, and does not appear to sink or leak. All of that checks with having it professionally rebuilt a few years ago.
I verified the float doesn't leak by dunking it in hot water and adjusted the level slightly.
I confirmed the main jets are the proper size. Edit: see picture.
I confirmed the power inlet check valve is functioning properly.
I put a little carb cleaner in the accelerator pump passage to test that the pump inlet check valve and power bypass jet were functioning correctly. (Pieces 28 and 29 of the Stromberg manual respectively). As expected, no fluid moved. When I removed piece 28, the check valve, the passage drained immediately. The jet seemed to move smoothly, but I thought it should be shut until 65-70mph and a near wide open throttle position. I'm pretty convinced this is my problem - where do I find a new one?
Wouldn't you know that the blasted heat riser valve isn't dropping properly? I'll wire it EDIT: open (weight down) and see if that changes anything.
Attach file:
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The float seems to operate smoothly, as does the accelerator pump. The book (Stromberg Manual) on this site calls for a fuel level of 15/32" below the top surface. Since my car was running rich, I thought the float would be too high, but it appears to be correct, or maybe even a little low. I did observe that the float moves freely, and does not appear to sink or leak. All of that checks with having it professionally rebuilt a few years ago.
I verified the float doesn't leak by dunking it in hot water and adjusted the level slightly.
I confirmed the main jets are the proper size. Edit: see picture.
I confirmed the power inlet check valve is functioning properly.
I put a little carb cleaner in the accelerator pump passage to test that the pump inlet check valve and power bypass jet were functioning correctly. (Pieces 28 and 29 of the Stromberg manual respectively). As expected, no fluid moved. When I removed piece 28, the check valve, the passage drained immediately. The jet seemed to move smoothly, but I thought it should be shut until 65-70mph and a near wide open throttle position. I'm pretty convinced this is my problem - where do I find a new one?
Wouldn't you know that the blasted heat riser valve isn't dropping properly? I'll wire it EDIT: open (weight down) and see if that changes anything.
Attach file:
(247.91 KB)
(82.10 KB)
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