Diggn in the ac, hv some questions

[Kim K Kaiser]

I got the old compressor out, new one in.   As i looked at connections, i noted nothing woukd fit, soi was wondering. Do i need to take the rear bracket off the old unit and attach to the new unit?  This would be the part that the hoses connect to.  Not the bracket that attaches so you can affix to engine. I attaching a couple pictures of new compressor and old compressor rear ends.   I hv one of the high efficincy new compressrs from old air.  

One of those small metal hoses yhat attaches to the black tall boy looking can in the front will not release.  I hv it soaking in blaster  over night.  Hoping it breaks tomorrow.  

Any thoughts always appreciated

[Kurt]

You have to have something there, either the STV or the STV eliminator. With that said, the STV has to be in working order. I had to repair the the vacuum control valve and the diaphragm on mine over the years. If yours is original chances are that one or both of those is bad on it.

[Kurt]

Per the instructions posted, out (counter clockwise) lowers the pressure, in (clockwise) increases pressure.

[Kim K Kaiser]

Well 6 hours later, i got the stv unit out.   Those backnnuts were a japanese goat rope!.   Had to take the hood hinge off tonget leversge on the old nuts tonbreak them loose.    Anyway, in znticipation of closeing this thing up,  i took that blower cover off.   Do i need any gasket of foam material wehe it attaches at the blower and at the evaporator box and thecseams of the part.  It looks like they had something there at one time.  

The evap box was clean.  Not a leaf, twig nothing.   Barely any dust in there, at least vidibly looking inside.   

Now that i hv that stv unit off and on the table,  i can do that chg supplied by old air.  We il see how that goes.    

[Kim K Kaiser]

Does this hole in vaccum piece look normal?  Attached to the stv unit