Compressor experts needed.

[Satatic]

Alrighty well my compressor is old, I am not even sure that it is a compressor. My dad says the pump is off a refrigeration truck, but I donno. I get a lot of oil in the tank and I'm finally doing something about it. I took the little fitting off the intake part and found this little pinhole in something that looks like a plug. The pinhole goes threw that plug to the crank case. Seems like as the pump splash lubricates itself it ***** the oil that splashes up threw that pin hole and into the intake. Now I'm thinking immediatly that is my problem so I put epoxy over the hole. I probably should have asked for advise before doing that. But its ok cause I didn't bother waiting for it to cure before starting up the compressor and it poped the hole right back open. BTW I figured that hole at least serves as a breather so I left the oil spout thing open while running it. Can anyone tell me if that pinhole needs to be open for oil to go threw the intake? I have taken the cover off the crank case before and I could feel both of the cylinder walls inside that so I figgured they get splash lubed. Also I took some pictures if anyone can tell me about this pump, its got a few numbers on it too.

This is the intake, the glob of epoxy on the bottom is where the pinhole is, the stuff on the side was just leftover.

Just by looking at this picture you can tell its very old.

So can anyone tell me anythign about this pump?

 

[eschoendorff]

I wish I could give you some actual help. But instead, I will just tell you that your pump is way cool! Where did you ever find that thing?

Hope you can get it fixed and back up and running...

 

[kartracer55]

I asked a guy about it, and he will either register and post info, or Ill post if for him when he gets back to me on it.

Jim

 

[kartracer55]

Franz© says....


That machine was originally a refrigeration compressor, and somebody converted it to an air compressor.

The problems are multiple in using it as an air compressor, starting with the reality it was designed to allow oil to run thru the system. This requires either an oil trap that will capture the oil from the air stream and return it to the compressor crankcase, or finding and plugging the oil path from the crankcase to the compression piston area of the machine.
Essentially it's the same problem encountered when using a York AC compressor for an air compressor.
Plugging the oil galley is the preferred way to go since an oil trap will also send a lot of condensate water back to the crankcase, and ruin the bearings. Either way, you definitely need to maintain a close watch on crankcase oil level, or you'll blow a bearing.


Jim
The biggest drawback to investing in such a system is efficiency. When operating in perfect circumstances, a refrigeration compressor will deliver 50% of the CFM for the buck of energy input that a air compressor will.

 

[Satatic]

What I really need are some specs. Like for the rings. Torq for the bolts so I can take the head off. I probably need to clean the valves because this thing has been run for years with no air filter. I would also like to replace that copper coil with a line made for compressors with the fins and stuff. I can probably find that one myself though.

 

[kartracer55]

You can figure out the torque specs yourself. Set your clicker to 5 ftlbs, and see if it clicks without moving the bolt. If the bolt doesnt move, increase it 1ft lbs, and so on, until the bolt does move before it clicks. Once you get one measurement, Lower the setting 3-4 lbs, and try it on other bolts. Average these #'s together and that should be good'nuff.

as for the rings, I cant help you on that one, but Keep in mind how much this is costing you. It may get to the point where it would be better to just order a compressor pump. The reason I say this is because as the guy I asked said, Air compressor pumps are 2x as efficient as refrigerant compressor pumps.

Jim