Thread fitting size (MV-50)

[Jeeper Creeper]

Ok I tried positioning the reed plate two differents ways. I can kinda see where the rubber gasket was so there were only two options to try. I'm assuming that the side that goes up against the head with the hole in it goes to the outlet valve to the tank, and the reed is on the side to the air gauage. Anyways I tired both ways and still sits at "0" psi

[Jeeper Creeper]

Yes sir, if the plate is not positioned correct, your intake and exhaust "valves" will not be oriented to the correct ports on the head.

I think you found your problem.

Wow I sure hope so. I'm out of town for the next few days, but will post back with my findings. Thanks to all who replied

[dktool]

Would this cause the problem I'm having?

Yes sir, if the plate is not positioned correct, your intake and exhaust "valves" will not be oriented to the correct ports on the head.

I think you found your problem.

[Jeeper Creeper]

I belive I did.... it's on the same way the picture on the box is. Don't think I actually moved the reed plate...... damn I hate getting old. Would this cause the problem I'm having?

[dktool]

Actually what I did was take the head off my old compressor (which was already tapped) and put in on my new compressor

Now the pieces of the puzzle are coming together......

When you took the head off did you take note of the position of the reed plate and put it back CORRECTLY ?

[Jeeper Creeper]

Actually what I did was take the head off my old compressor (which was already tapped) and put in on my new compressor, since I didn't have a tap and die set. The only other thing I did was cut the battery clamps off and wired direct. Still don't know why it would suck air though causing the air tank not to fill.

[dirtman13]

Be very careful when tapping the compressor head. It cracks easy.

[Jeeper Creeper]

It was new in the box (sealed) now installed in Jeep.. should of checked if it was working before the install. Runs fine just not getting air to tank.

[dktool]

When you say this is a NEW compressor, do you mean NEW in the factory sealed box or new to YOU ?

If the first, it's defective, if the second, it is either worn out or has been violated.

[Jeeper Creeper]

ok 18 makes more sense, well at least I can find taps that are 1/4' -18, I wasn't coming up with anything that was 14. I'm still sucking air from my compressor instead of it blowing air... is it possible that I have a air leak on the compressor, would that cause it to suck air. I sprayed some soapy water on all fittings and compressor and don't get any bubbles. Any ideas?

[dktool]

Edit

1/4" NPT is 18 pitch not 14

[Jeeper Creeper]

The main line from the compressor that goes to air tank sucks air?? I'm so confused:confused:

[aw12345]

Ok new compressor installed, runs great, no air leaks that I can find, but tank won't fill with air and the guage stays at 0 psi. Also on the rear locker switch the light is out, but didn't think that would cause the tank pressure not to go up.......any ideas?

stick the gauge directly on the compressor see if it built's pressure

[Jeeper Creeper]

Ok new compressor installed, runs great, no air leaks that I can find, but tank won't fill with air and the guage stays at 0 psi. Also on the rear locker switch the light is out, but didn't think that would cause the tank pressure not to go up.......one more thing, the main airline that goes straight from compressor to tank sucks air. I didn't change the wiring, its the same pump has I had before and everything is hooked up the same, any ideas?

[aw12345]

you have to look for 1/4 NPT on your drill chart