Thread fitting size (MV-50)

[dirtman13]

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

[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.

[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]

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]

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]

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

[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