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Farmall & IHC Tractors Discussion Forum

W9 lp

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Author  [Modern View]

11-04-2019 10:34:44

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Im working on a w9 that has been converted to propane. I temporarily hooked the regulator/vaporizor to a 20lb grill tank just to get it running. When i turn it over it pops like it wants to start but doesnt. It has a mag on it. I am wondering if possibly the mag isnt supplying enough juice while cranking to actually run the tractor? The manifold is also cracked so possibly sucking air not propane?
I look forward to some advice with this project. Thank you.

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11-06-2019 15:36:08

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 Re: W9 lp in reply to 1974vette, 11-04-2019 10:34:44  
I tried to start my 806LP off a 20 pounder to move it around after paint before i set the main tank on. what i ran into (after i figured it out) was the OPD valve in the 20 pounder was actually activating due to the volume requirement once the engine starts to call for vapor. no matter what i did i couldnt overcome that and ended up pushing it around with the skidloader before i set the main tank back on it

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CenTex Farmall

11-04-2019 18:02:14

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 Re: W9 lp in reply to 1974vette, 11-04-2019 10:34:44  
The mag is probably light on spark for an LP. However, if it's popping then you're getting something lit.

The regulator will need some vacuum signal to tell it to open up and deliver enough propane so the if you have a cracked intake then it could be an issue. Some regulators have a primer button (like JD) that you can use during starting. It depends on what regulator type they used for the conversion.

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11-04-2019 17:53:43

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 Re: W9 lp in reply to 1974vette, 11-04-2019 10:34:44  
remove the plugs and check the spark. got to start someplace. myself I go right through everything , hit the starter and she is running.

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