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  1. #1

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    PAW 06 fuel draw question

    OK group Have started the Polk tiger moth with the PAW 06, really cannot pressurize the tank with a fitting on the muffler such as other engines
    Do you think the PAW will have a problem if fuel pickup in tank 3/4" below carb center
    If has to go up will require quite a bit of work to modify fus. to do this, to get tank higher if we do we do but would like to avoid martin

  2. #2

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    RE: PAW 06 fuel draw question

    I may just put the engine back on the bench lower the tank 3/4" and see what happens just thought of this martin

  3. #3
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    RE: PAW 06 fuel draw question

    It should be fine, low end might get a little lean at the end of a run but diesels don't stop as easily as glow engines do.

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    RE: PAW 06 fuel draw question

    Mr Cox THX to get the tank higher would have to do a total rebuild front of the plane cut off the whole top forward of the windscreen to firewall and its glued over a piece of curved foam
    martin

    A 2oz tank for an 06 is big, would most likely fly off only about 1/2 before landing and refueling

  5. #5

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    RE: PAW 06 fuel draw question

    Martin,

    What about an external FF style tank.

    Dave Owen lists them, sorry I can't extract the pic but here's the link. http://oea.modelenginenews.org/pricelist_2011-04.pdf

    Greg
    Regards
    Greg

    Elwood: They're not gonna catch us. We're on a mission from God.

  6. #6

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    RE: PAW 06 fuel draw question

    Greg that is a thought a couple of rubber bands and I would be in biz martin

  7. #7

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    RE: PAW 06 fuel draw question

    Here you go Greg.
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  8. #8

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    RE: PAW 06 fuel draw question


    ORIGINAL: AMB

    OK group Have started the Polk tiger moth with the PAW 06, really cannot pressurize the tank with a fitting on the muffler such as other engines
    Do you think the PAW will have a problem if fuel pickup in tank 3/4" below carb center
    If has to go up will require quite a bit of work to modify fus. to do this, to get tank higher if we do we do but would like to avoid martin
    Martin,
    from the PAW web site-
    "Fuel level in tank during starting procedure MUST NOT BE HIGHER than in the same horizontal plane as jet. A little lower (up to 1cm) is alright. "

    As to pressuring the fuel tank have you looked at crankcase pressure? Perhaps the back plate is thick enough to accept a pressure nipple.

    P.S. just looking at your other post on this it would seem that you have quite a bit of tank space behind the engine on the radial mount .


  9. #9

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    RE: PAW 06 fuel draw question

    Greg pulled backplate very thin a no go on that one, one other thought smaller tank, whats the approx run time on the PAW 06 on one oz fuel martin

    guess at least 10 minutes at around 10K

    guess I could go to the source and call PAW

  10. #10

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    RE: PAW 06 fuel draw question

    One of these would make a nice tank ... if the bung can take diesel fuel

    http://www.ebay.com/itm/390403868791...84.m1423.l2649

  11. #11

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    RE: PAW 06 fuel draw question

    OK Hayes does make a 1 oz round tank #s 077 ok fro diesel of course as is martin

    whoops header tank will it work on its own??

    it should orient so tubes are vertical bottom plugged anyhow , center draw on clunk line upper vent just lead higher than tank (vent ine)

    Fiery cheap too only $4 the E bay one twice the price THX for the search and check

  12. #12

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    RE: PAW 06 fuel draw question

    For what it's worth, I had one in a little CL stunter. It would still draw quite ok with the nose pointed straight up, and the pickup a good 2 1/2 or 3 inches below the level of the spraybar.

  13. #13

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    RE: PAW 06 fuel draw question

    Steve THX you just relieved my anxiety on this one martin

    I really did not want to do a hack thing on the moth plenty of room for the 2 ouncer just need a little opening up on the bulkhead wit dremel and drum sander on it

  14. #14

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    RE: PAW 06 fuel draw question

    Steve,
    what was the inverted stunt run like with the spray bar now 2 1/2 inches below the fuel feed pipe?

  15. #15

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    RE: PAW 06 fuel draw question

    Sorry Chris, I think you've misunderstood me. I was referring to when the nose was pointing straight up. Inverted, the pickup is naturally level with the spraybar again.

  16. #16

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    RE: PAW 06 fuel draw question

    Gottcha! Thanks.


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