My current compressor is toast.  Sorry but that is how it is.  So my options are:

Buy a new unit.  I do have an ideal 55 with a r134 deck but I would rather use r12.
Rebuild the current deck.  I have the r12, I have gauges, I have new wiring.  I just need some insight on how to add a drier to the system.  Is the tube coming out of the condensor steel?  If not then then the drier I bought from funtronics will work.  If it is steel than how do I add a drier?  

Here is the thing, I can get a working ideal 55 for 100 bucks.  I would like to transplant that deck into a much better body.  I would also like to add a drier to the system.  I really don't want to do the brazing of the system.  I will have somebody else do that.  

Don't get angry, I tried to do what you suggested.  The compressor is toast. Can somebody lead me to how to add a drier to the deck?  

I have redone 7 sliders in the past.  I haven't done much on the refrigeration side of things.  I have recharged 2 sliders this summer.  One worked well but the other turned the compressor into toast.  I had 2 different refrigeration guys work on that slider.  Now I have to take over and get it working.  That is why I wanted to get some answers.

While I have tried to assist you in the now apparently abandoned prior discussion/chat in diagnosing your Glasco slider's compressor issues I personally can't take the time to attempt to walk a newbee step by step through a compressor replacement process that requires more than a basic desire to "do it myself" it requires a sound understanding of refrigeration practices & applied processes such as brazing, wiring, & recharging the system safely with a high pressure refrigerant gas, there are risks involved & liabilities to consider. you'd need a refrigeration gauge set, a vacuum pump, a refrigerant charging scale, torch/brazing equipment, etc. by the time you get all of this together for a one-shot machine repair, you'll have spent more than I if you purchased a rebuilt compressor deck or have yours repaired or rebuilt by someone in the business of doing so. this is a fun hobby ( for me at least) but it isn't what I'd call cheap to do... I'm sure there's a least a few folks out there with a used original compressor deck that would "plug n play" onto your glasco, either a Glasco or an Ideal slider deck or even a deck out of a small LaCrosse upright machine will fit nicely. but remember you're taking a significant chance buying a 60+ year old system...as an example, here's a picture of a rebuilt (restored actually) compressor deck I did for a customer, it cost him $675.00 + shipping start to finish, it will reconnect directly back onto his machine & he's going to recharge it himself.

I have been trying to revive my tecumseh 1/4hp compressor on a glasco gbv50 but I feel it is a lost cause.  I would like to replace the tecumseh compressor with another compressor.  If anybody has an old tecumseh 1/4hp compressor that they would like to sell, let me know.  If not I would like to use a newer compressor.

What I need to know is how to re-build the deck.  I would like to add a drier to the deck so I have service valves on low side and high side.  I would like to keep the system r12 but I could also change over to r134.  Can somebody help me with how to do this? 
Thanks,
Buck

Here is what I get.  The low side does start at 40psi when cooler is started.  It then drops down to 20 after 8 minutes, But the compressor gets really hot and the supco ro41 gets stinking hot.  The temp statrs to cool down and then stops.  I have to turn off the compressor.  No frosting occurs on the low side anymore.  It did at one time but it was frosting all the way to the compressor.  I'm pretty sure the tecumseh 1/4hp compressor is toast.  The machine itself is in really nice condition.  I would like to replace the compressor but don't know which compressor to use.  I'm going to start new thread on repairing the compressor deck.

Thanks,
Buck

If your machine only has a low side service valve, then that’s all you can check, if the compressor is actually running & it has a freon charge, you should see about 15psi on a  normally charged system but if it’s low o freon, it may be very low pressure showing ~5 to -10 psi, when you first turn it on it will start off at around 40-60 psi & then start dropping down towards 20-15 psi as the box gets colder (assuming that the compressor is actually working)

           " The low-side valve is connected to the larger size copper tubing & goes into the side of the compressor....the high-side valve is located on the smaller steel tube coming off of the bottom of the condensing coil (some people call it the radiator) both valves operate the same in regards to opening & closing them." 
               I don't think my glasco gbv50 has a high side service valve. so what do I do? 
        The low side is the same as the suction side correct?  This is the service valve that I added R12.

Thanks,
Buck

Thanks for the reply.  Been busy on other projects.  I will try and see what happens but I think the compressor is cooked.  I'll let you know.

Buck

Zzzzzzzz .......

Thanks Slapshot 

So, any progress?