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  1. #201

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    RE: GAS/GLOW HOW TO....

    You can run a glow engine with brass bushings on gas/glo provided that you have a 10-12% oil mix in your fuel

  2. #202

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    RE: GAS/GLOW HOW TO....

    I notice that the Zama carbs do not like to run on methanol.
    I have a Poulan 25 on gas/glow and it runs good on the first flight and then the carb goes out of wack.
    Happens every time I go to the field. Is there a replacement part to run methanol? I assume it is the pump
    valves that are the problem.

  3. #203

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    RE: GAS/GLOW HOW TO....

    Look for a Walbro carb on some dead power tool. The carb should be about the same size. Then at least you can buy good kits for the Walbro carb if needed. Just a Idea! Capt,n
    I never met a engine I did not like !

    http://www.lambertsrc.com/

  4. #204

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    RE: GAS/GLOW HOW TO....

    a walbro wt-499 is a alky carb. special diaphram and valve plate/gasket. using the 499 alky carb on my big supertigres, working great. 25cc gasser/glow eng. should be a real good fit!!!

  5. #205
    Moderator w8ye's Avatar
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    RE: GAS/GLOW HOW TO....


    ORIGINAL: tinsink

    I notice that the Zama carbs do not like to run on methanol.
    I have a Poulan 25 on gas/glow and it runs good on the first flight and then the carb goes out of wack.
    Happens every time I go to the field. Is there a replacement part to run methanol? I assume it is the pump
    valves that are the problem.
    The new Zama's have Mylar diaphragms and will not be effected by alcohol

    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
    Recipient, Mangledhand award August 2008
    Club Saito Member #7
    Original AMA #31261

  6. #206

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    RE: GAS/GLOW HOW TO....

    that's good to know w8ye, are there any way of telling if carb. is equip. with mylar rubber parts? have zama changed part numbers indicating such???? or do we have to rely on the seller to tell us so???

  7. #207
    Moderator w8ye's Avatar
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    RE: GAS/GLOW HOW TO....

    Other than seeing the diaphragms being clear plastic, there's no way to tell.
    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
    Recipient, Mangledhand award August 2008
    Club Saito Member #7
    Original AMA #31261

  8. #208

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    RE: GAS/GLOW HOW TO....

    Thanks for the info folks.

    I am going to get replacement diaphragm kits for my Zamas. That should solve the problem.

  9. #209

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    RE: GAS/GLOW HOW TO....

    tinsink, when you find them would you post the kit numbers???

  10. #210

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    RE: GAS/GLOW HOW TO....

    OK Fujiman:

    For the Zama carb on my Poulan 25- the Carb no. is 1CU-W18 and the pump and diaphragm
    kit no. is GND-12

    For the Zama carb on my Craftsman 42 chainsaw engine the carb no. is 1CQ-W14A and the kit no. is GND-27

    I purchased them from H and H Lawn Care. Good internet site for rebuild kits and prices are good too.

  11. #211

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    RE: GAS/GLOW HOW TO....

    FYI I received the Zama Diapragm kits today. the -12 kit came with 2 different diaphragms for the pump. One is an exact replacement and the other seems to be a fiberglass material that is almost the same color as the original but definitely a different material. Obviously I opted for the new mateiral. I think the replacement regulator diaphragm is a different material but I cannot be sure. It is the same color as the original but the texture is a bit different, that is before it sees fuel. The -27 kit has a clear pump diaphragm and an exact replacement too. I don't think the clear one is mylar more likely fiberglass as it has the texture of fiberglass. I'll give it a whirl this weekend and post results.

  12. #212

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    RE: GAS/GLOW HOW TO....

    I flew the plane with the new diaphragms in the Zama carb. It definitely improved the performance in that I can set the carb needles and the adjustments are steady throughout the flights. This is a big plus. I now leave the glow battery on until it warms up which takes about 2 minutes. Now I'm dealing with the mid range. It does seem to run too cold/rich in mid range. It could be the fuel. I run 2:1 gas to methanol and oil. Maybe I'll try the gas and glow fuel mixture or just gas with oil. I heard some people have had success with just gas/oil on the Poulan 25, it will definitely run hotter.

  13. #213

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    RE: GAS/GLOW HOW TO....

    Tinsink, I had a problem keeping the plug hot so I hooked up a battery to the glow plug with a on/off switch.When I run the engine I turn the switch on & leave it on till I am done running it. The battery is a 4.8 2200mah battery. When I get home I charge the battery up & am good till the next time

  14. #214

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    RE: GAS/GLOW HOW TO....

    hi guys
    i have a 30cc ECHO weed eater engine and i have converted it on glow plug but i did not found glow fuel so if i run it on gasoline do it works and also i have a gallon of thinner do any one of them works

  15. #215

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    RE: GAS/GLOW HOW TO....

    jadec241, What glow plug are you using? 4.8 volts seems to be a lot. Others are using only 1.2 volts. Makes me wonder how long your plug is going to last.

  16. #216

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    RE: GAS/GLOW HOW TO....

    Am using a Fox plug. Am just experimenting with it

  17. #217
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    RE: GAS/GLOW HOW TO....

    Are you using a regulator at all? any time I have tried more than 1.5 volts, the plug gets really bright and then makes "magic smoke".
    I hope they serve beer in hell!

  18. #218

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    RE: GAS/GLOW HOW TO....

    I just wnt into my shop & checked the battery. My mistake. Its a "AA" 1.2 2200 miliamp. battery mounted in a single cell holder from Radio Shack. Glad you guys asked cause I would swear it was a 4.8. Thanks

  19. #219
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    RE: GAS/GLOW HOW TO....

    how much run time do you get on that set up? Would one or two batteries be good for a day of flying?
    I hope they serve beer in hell!

  20. #220

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    RE: GAS/GLOW HOW TO....


    On the test stand I ran 10 oz. of fuel thru. Came home & checked tjhe battery & it was almost fully charged. Came out the next day & ran it again. Some of the guys are running a 'AA' Walgrens battery with good results also

  21. #221

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    RE: GAS/GLOW HOW TO....


    ORIGINAL: Falcons Cuz

    hi guys
    i have a 30cc ECHO weed eater engine and i have converted it on glow plug but i did not found glow fuel so if i run it on gasoline do it works and also i have a gallon of thinner do any one of them works
    I would use gasoline with oil for lube. A RCexcell ignition from Hobby King is cheap. I do not know what you mean by "thinner" if it is used to thin paint...I would not use it. Capt,n
    I never met a engine I did not like !

    http://www.lambertsrc.com/

  22. #222
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    RE: GAS/GLOW HOW TO....

    Gotta be an easier way to get a plug adapter and carb
    maybe one that dont mandate PayPal.

    Other than getting the Plug Adapter from CH, and paying shipping on that one part
    then buying more stuff elsewhere with more shipping charges,
    are the Plug adapters available anywhere else besides CH & Wackerengs? Someplace with a straight credit card transaction?


    FUEL-
    Anybody know a place in San Antonio to get methanol?
    The local RC Car place says they only have high nitro stuff, and I dont want to "order" a case to get the 10/10.
    I looked at Kart web pages, but didnt see them talking about fuel.
    I have an email out to a race fuel supplier (VP), the wait for reply is not giving me hope for easy drive up retail of their 5gal bucket. My reasoning is that even 5gal of NoOil NoNitro added race methanol will still be cheaper than a couple gals of Car 10/10.


    I can do the math to dilute 15/18 plane fuel to get 10%oil,
    but I cant do that without some methanol to dilute with.

  23. #223

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    RE: GAS/GLOW HOW TO....

    HELP!!!!! Does anyone know who makes a 14mm to glow plug adapter with a square cut (flat) "gasket type" seat where it seals on cyl. head???? All the ones I've seen have taper type seats. I have 1 eng. that someone has used a tapered adapter on a flat gasket type cyl. head and it leaks badly around threads. Also I can't find a countersink type tool to cut a taper in cyl. to fit adapter, without going into a big, big production thing!!!!!

  24. #224

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    RE: GAS/GLOW HOW TO....

    I could make you up one out of an old spark plug, I think I have an old plug handy... I'm in Tigard and go through Salem every now and then.. or you could meet me somewhere...

  25. #225

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    RE: GAS/GLOW HOW TO....

    for methanol, in 5 gall drums check with oil distributors like chevron ag dealers, they usually have , we pay 13 dollars for five gallon pails...which is very nice


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