Onboard Air?
Well, since i'm cheap, i just bring my portable air tank w/ me and hope that that is enough. It holds 120 pounds of air so im good. But i do want to get an air horn / tank so i can fill off of that.
When I was growing up on the farm, we used to have an air hose that simply screwed into any cylinder. All you needed to do was remove any spark plug, screw in the hose, and start the truck. As long as you had good cylinder compression, you could air up about anything. This might throw a code on a Ram though, but on the old Ford pickups we had back then, it worked great. No need to have the extra weight of on board compressors and tanks, and no need to have another accessory drawing from the battery. As long as the truck (or any other truck that was with you) could sit and idle, you could air up anything.
I'm not sure, i'll ask my Dad about it and get back to you, or maybe someone else here knows. It was old back then, so who knows if anyone even makes that anymore, or maybe it was even homemade, i'm not sure. The hose was a standard air hose with a standard tire nozzle on the end (best I recall at least). The side that connected to the cylinder could have just been some cheap fitting with the right thread to screw into the cylinder. It was a pretty simple setup. Took a little while to air things up because you only get a burst of air on each stroke, but it always got the job done. I remember using it lots to air up tires on implements and tractors out in the field.
no one makes em any more , BUTTTT , you can make your own . you just need to know the right threads and what end to use , my dad does this to (old farmer trick) thanks silver letting secerts out..lol..
LOL, sorry, didn't realize it was a secret.
I'm not sure I would try it on my truck though. I imagine the PCM would see it as a cylinder missfire, and you might mess up an o2 sensor in the process too with the unburned fuel getting washed down. That wasn't an issue on the '72 Ford I used to use it on though.
I'm not sure I would try it on my truck though. I imagine the PCM would see it as a cylinder missfire, and you might mess up an o2 sensor in the process too with the unburned fuel getting washed down. That wasn't an issue on the '72 Ford I used to use it on though.
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LOL, sorry, didn't realize it was a secret.
I'm not sure I would try it on my truck though. I imagine the PCM would see it as a cylinder missfire, and you might mess up an o2 sensor in the process too with the unburned fuel getting washed down. That wasn't an issue on the '72 Ford I used to use it on though.
LOL, sorry, didn't realize it was a secret.
I'm not sure I would try it on my truck though. I imagine the PCM would see it as a cylinder missfire, and you might mess up an o2 sensor in the process too with the unburned fuel getting washed down. That wasn't an issue on the '72 Ford I used to use it on though.
That's a pretty cool idea. My compression tester has a snap fitting that will plug into a compressor line. I have used it to pump cylinders up w/ air when doing valve springs, but I suppose it could be used for this purpose as well. That, 15' of hose, and a fill fitting under the back seat might come in pretty handy.



