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Model E Vaporizer



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Old 09-15-2012, 09:35 AM   #1
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Model E Vaporizer

Anyone here real good with Impco stuff?

I've got a model E that I have a feeling was rebuilt incorrectly.
Anyone have pictures if the internals of what it should look like?


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Old 09-15-2012, 09:56 AM   #2
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What is it doing?

Found this--------

http://www.teecoproducts.com/Catalog...E%20Series.pdf

Model L in this one but it might help you some.............

Propane System Rebuild - Pirate4x4.Com
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Old 09-15-2012, 10:13 AM   #3
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First I had absolutely zero flow through it. Then, I found a picture of a primary seat, and it was installed reverse of what mine was. I re-oriented mine like the picture, and now have uncontrolled flow.

Just hoping I can find someone that knows, before I destroy these gaskets and diaphragms from taking them apart so many times.
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Old 09-15-2012, 11:48 AM   #4
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Quote:
Originally Posted by StuntHeavy View Post
First I had absolutely zero flow through it. Then, I found a picture of a primary seat, and it was installed reverse of what mine was. I re-oriented mine like the picture, and now have uncontrolled flow.

Just hoping I can find someone that knows, before I destroy these gaskets and diaphragms from taking them apart so many times.
Read this thread, not sure its your problem but give it a read

propane headaches [Archive] - Pirate4x4.Com
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Old 09-15-2012, 12:05 PM   #5
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Yeah I've searched through every propane article I can find on pirate, and google. The only place I've found an actual picture of a model e taken apart was on wheelindixie, but looking back, even that guy had flipped the primary valve between two pictures.

I guess I may just have to wait till Monday and call one of the propane guys for some advice.
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Old 09-15-2012, 12:15 PM   #6
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Quote:
Originally Posted by StuntHeavy View Post
Yeah I've searched through every propane article I can find on pirate, and google. The only place I've found an actual picture of a model e taken apart was on wheelindixie, but looking back, even that guy had flipped the primary valve between two pictures.

I guess I may just have to wait till Monday and call one of the propane guys for some advice.
So is it freezing Up?? You have adjusted the vaporizer aka impco 425? I guess I am confused as to your getting too much flow as I thought it was controlled with the 425.
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Old 09-15-2012, 12:23 PM   #7
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no, it is not freezing up, i shut off the propane before that can happen. The 425 is a mixer (mounted on the intake). The vaporizer/regulator is what converts the high pressure liquid to low pressure vapor.(mounted on the firewall in my case)

I have an electric lockoff. When actuated, it flows pane to the vaporizer, as it should. however, the vaporizer then just dumps liquid and vapor pane out the vapor outlet at an uncontrolled rate.
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Old 09-15-2012, 12:47 PM   #8
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Quote:
Originally Posted by StuntHeavy View Post
no, it is not freezing up, i shut off the propane before that can happen. The 425 is a mixer (mounted on the intake). The vaporizer/regulator is what converts the high pressure liquid to low pressure vapor.(mounted on the firewall in my case)

I have an electric lockoff. When actuated, it flows pane to the vaporizer, as it should. however, the vaporizer then just dumps liquid and vapor pane out the vapor outlet at an uncontrolled rate.
Yeah sorry for the lingo......I went stupid for a bit haha. I have had three rigs on propane so I should know better haha.

Another thread with an open model E.......

Impco Model E not flowing? - Pirate4x4.Com

I am thinking your diaphram is bad as I have read it will dump coolant when its bad. Also double check your hoses............

Oh and did you read this
propane headaches [Archive] - Pirate4x4.Com

Here is what I see
""yep the toilet flapper. If you install a rebuild kit you will probably have to bend it. I did on mine at least. Before I bent it it would just allow pane to flow through. I would crank the key and open the vff30 and then the vaporizer would allow way too much pane through and freeze up and the motor wouldn't run cause it was getting pretty much 100% pane and no oxygen. I eyeballed it closed. I couldn't find a number or spec on how much to bend it, so I just bent it so that it would naturally just barely be closed. I got this advice from Bill Nash at Nash Fuel. I called him up ready to buy a new mixer because I thought I had an issue and he talked me out of that and told me how to fix the vaperizer.

I'd pull the outlet line and you should be able to see that "toilet flapper" in that big threaded exit hole. If its open you'll need to pull the cover and bend it so that its natuarally closed""
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Old 09-15-2012, 12:49 PM   #9
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Had the same problem. You more than likely have the height set wrong on the plunger. If you look at the model E you will see a button on top. The plunger lever is what you are actually pushing on when you push that button. Take the top off the model E and measure how high the lever sticks in the air. I can't remember what it's suppose to be but the info is online if you search for it. Or if you buy a rebuild kit it should also come with that info. My lever was too high and when I bolted the top of the model E down it would hold open the plunger and when I turned the tank on it would just come out. Once I bent that lever down all was well. Hope that helps.
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Old 09-15-2012, 01:21 PM   #10
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Had the same problem. You more than likely have the height set wrong on the plunger. If you look at the model E you will see a button on top. The plunger lever is what you are actually pushing on when you push that button. Take the top off the model E and measure how high the lever sticks in the air. I can't remember what it's suppose to be but the info is online if you search for it. Or if you buy a rebuild kit it should also come with that info. My lever was too high and when I bolted the top of the model E down it would hold open the plunger and when I turned the tank on it would just come out. Once I bent that lever down all was well. Hope that helps.
Just tried it with the cover and diaphragm off the lever. it still pushing the lever up. I really feel like its an issue on the high pressure side.


I think it's an issue with the primary valve, but I don't know what the proper setup for that is to begin with.

Last edited by StuntHeavy; 09-15-2012 at 01:26 PM..
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Old 09-15-2012, 02:19 PM   #11
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Got it figured out... primary valve was upside wrong, and misadjusted, and the flapper valve was also misadjusted.
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Old 09-15-2012, 02:38 PM   #12
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Quote:
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Got it figured out... primary valve was upside wrong, and misadjusted, and the flapper valve was also misadjusted.
Right on!!!!
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