Pressure Tank Questions – QD15

[John Gragg]

Finally getting to the QD15. I have a tank with a new (nos) diaphram and gaskets. My questions are:

Seems like the plunger (aluminum rod plunger w/ 9 hole diaphram) doesn’t have as much up/down travel as I imagined. Normal?

When I pump the plunger I get fuel in the glass bowl, but I can see the fuel ‘leak down’ ever so slightly afterward. Normal?

1st experience with a remote tank. Thanks for any help/advice.

Best Regards

John

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

[frankr]

The check valves in the tank are not perfect nor expected to be, so I wouldn’t worry about the leakdown.

Since the pump is pumping gas to the carburetor and hopefully no gas leaks anywhere you probably are ok.

1 user thanked author for this post.

John Gragg

[John Gragg]

Thanks Frank,

Yes, I hadn’t tried running it yet but did so today. Couldn’t get it to stay running, had to keep priming the carb to get fuel into the bowl. Finally took a close look at the tank and found I had not screwed the pump housing down tight enough (a couple of minor air pressure leaks). Fixed that and now it runs like a top! First run since I got it almost a year ago. My CD12 did just as well! Two runners, time for cosmetic work.

 

Thanks again,

Best Regards,

John

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

[crosbyman]

great news… “patience brings joy”  …said the fortune cookie 🙂

Joining AOMCI has priviledges 🙂

1 user thanked author for this post.

John Gragg

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