Next step-
I can install the new fuel pump I have (edit-same 4149 model; I purchased new one this morning), but I may return it and go with the Carter model linked above by Tim. I only had 15 minutes last night to do any testing, which verified (in my understanding) that I need a new fuel pump. Since I now know the colloquialism "flow test" is the same thing I have done well over one-hundred (100) times previously, on various engines, the pump installed does not produce acceptable flow. My fuel pump's lack of "acceptable flow" determination is based on the following (and please correct me if I'm wrong):
Fuel test: Quick flow but not much? Correct
How long did you crank to get "not much"? 15 seconds
What does not much mean? In this context "not much" is equal to or less than one US ounce of fluid, or 30 mL. I think I said that, but I understand why you axed me. I will take care with my use of quantifiers from now on
Weak squirts? Correct
Not steady pulsating squirts? Correct, they were not
Dribble? Correct- after the initial one ounce, and only a tinkle dribble, QTY- 1
Did not try a long time? Quantify "long time"
An ounce in what time period? 15 Seconds
Once it starts squirting it should keep going...pump squirt every second or so. This did not happen.
Keep cranking non stop. But you have to see it yourself while someone else is cranking. I saw this for myself, peering between the hood & cowl opening. I also watched it on video.
This is not a "bump the starter" test. It's a whole hog 10-12 full seconds crank. My flow test met this criteria.
I only attempted the start (in the video I linked above) because in the time allotted I could connect the fuel fitting to the carb (1) & re-connect the coil wire (1); I did not have time to do a fuel pump swap (2 screws, 2 line fittings + the wire(1) & carb line (1). Other relevant answers:
Have you ever rebuilt a carb before? Yes-log splitters, tractors, generators, Rochesters, Carters... this is the first Carter YF 2100s, though
Don't dwell on what I said about cap. I'm not.
Hope you did not blow air into the pump, you will damage it. I did not blow air into the pump.
Let me know if anything stands out from my above answers leading anyone to believe this is not a fuel pump issue.
Thanks-
Brad
Last edited by Uncle Brad; 09/09/2015 5:43 PM.
