why can't i get over 14 volts

Is that showing on the gauge in the dash? Or have you confirmed with a multimeter?
Mine reads 13.8 and as low as 13.5 with everything on. I think you're in the ball park.

 

As above. Test guage for accuracy by using multimeter at battery, and alternator output.

Mine runs 13.9V, you're ok I think.

 

check loose ground at back of alt along with hot. especially at the crimp. check also at the starter wires going to & from. put mutli meter on back of alt hot & ground & see output. check alt belt for good tension. wires can be corroded or bad where YOU can't see them.

 

I don't see anything wrong with those numbers, try leaving the lights on for a few minutes to discharge the batteries just a little. (Eng off) You still want it to spin and start normal sounding. See if the gauge comes up to 14 when you start it.

 

Also run a ground wire from alt. bracket to the frame

 

Is the remote sense wire hooked up on back of alt?

 

have they checked the voltage reg? Most units should charge 14.4 volts on a 12 volt system. Only thing I can think of is the batteries are good fully charged and the alt. Is just maintaining. Not charging.

 

13.8-14.2 is normal .
If your Batts are full it'll go down closer to 13.8