Reply To: Am I Running On Only 1 Cylinder? Opinions? ’49 Sea King

[John Gragg]

The pics are for DBKSKI – Safety First! LOL!!!

Video link at the bottom…

Simply Amazing!

So I put it all together, (for the most part) except I did forget to add the starter ratchet and nuts to the top of the flywheel/starter drum. I guess I’m lucky the starter drum didn’t fly off and bean me! (Just saying it for the record before someone calls me out on it.)

So here is 16 seconds of the motor running, out of about 52 seconds it ran before I fussed with the HS knob enough that it quit. As you can hear on the video, it surges as little and I’m a little concerned that I have a vacuum leak? The packing on the HS needle is ‘iffy’ at best, so maybe I’m leaking air there? I did exactly what dbkski said in terms of how to make the adjustments but nothing seemed to work. Not sure if I needed to wait longer in between adjustments, or what? I did make sure I was waiting at least 3 or 4 seconds between needle movements, but like I said it’s almost like the HS needle was not even connected…

After several starts and attempts to get it running as ‘perfect’ as possible, I ran into another issue. It would Start, Run, Rev High (without any user inputs) and quit. All this would take about 5 to 7 seconds. I finally got smart and got eye level with the carb and noticed that the float needle was bottoming out when it quit. I would watch and the needle would slowly rise, I would restart it and the same symptoms would reappear, exactly as before.

My guess?:

Somehow my issue is tied to the float, I just can’t figure out how. The motor stalls out when the float needle bottoms out. With the needle in that position, I should have fuel entering the bowl, but I don’t (at least not quickly enough). So I have a fuel delivery problem?

I have the Sierra 18-7208 float in there in place of the original cork float (which was trash) but I could not figure out a way to suspend it on the float needle properly so I think it might be slipping.

I have seen where (I think it was Buccaneer or Frankr) someone was discussing using the 7208 float (with modifications). Can anyone tell me what those mods are? I’m guessing etching/cutting a groove 1″ from the top of the float needle to serve as the top limit stop for the float and another at the bottom of the float height? What would you use to cut those grooves? First thing that comes to mind is a copper pipe cutter, set into position and carefully used to make the groove?  Better ideas?

In the meantime…I’m going to fashion another cork float and I have ordered another Sierra float to try to get that part of this solved. The great news…. It RUNS! It is running on BOTH cylinders. The impeller is doing its job keeping things cool!

 

https://youtube.com/shorts/0IWOesJpSfs?feature=share

Best Regards,

John Gragg
RIverside, CA

Just starting in the hobby, please be patient.

48 Sea King 5hp GG9014A. Sold
49 Sea King 5hp GG9014A
48 Johnson TD20. Sold
49 Johnson TD20. Sold
54 Johnson QD15. Sold
55 Johnson CD12. Sold
57 Johnson RJE-19M
57 Johnson RDE-19