A/C discharge

[matthew]

If I were to have to discharge my A/C my self, not saying that I am I know it illegal and dangerous, how would it be done without special equipment. Also is there a way to take the springs off the valves so they don't fall into the cylinder w/out using a air compressor?

Thanks,
Matt

------------------
84 GW
TFI ignition
and a lot more work to come

[reddog]

I would think that alot of shops would discharge it for free if you let them keep the R-12. It is pretty costly nowadays.

If the piston is at the top of its stroke I do not THINK the valve would fall out, but without compressed air or pulling the head you won't get the assembly back together.

Kerry

------------------
87 GW - Stock (but it looks like RiverBeast when I'm sleeping)
TFI upgrade
360,727,NP229

[This message has been edited by reddog (edited April 12, 2001).]

[This message has been edited by reddog (edited April 12, 2001).]

[matthew]

Is not running right now http://www.ifsja.org/ubb/frown.gif

[Mud Thrasher]

Well, there is two ways. If you have the gauges and hoses just connect em and let it rip. If not then get yourself a shrader valve tool and slowly loosen it up. If ya don't know what that is it's the lil valve in your suction and return lines where you connect to charge your system. If you don't have that then a pair of small tipped needle nose pliers will suffice. Just barely crack it and let it slowly discharge and that will fix ya up.
Well I'm outta here.

[SpruceMoose]

on the valves: if you turn the engine so the piston in question is just starting to come up on the compression stroke you can feed in a long piece of clean, small diameter rope, until you have a nice pile of rope on top of the piston. then turn the engine in the normal direction of rotation with a socket wrench until the rope gets squished between the piston and the valves. that will hold the valves in place. make sure you leave some of the rope outside the cylinder!!! i've reamed aircraft valve guides in place that way for years. the neat trick is letting the valve out of the guide, and then getting it back in! with luck about 45 minutes per cylinder for both guides. without luck, pull the cylinder.
good luck!

------------------
88 Grand Wagoneer
"Spruce Moose"
AMC 360, DANA 44 F/R 2.72, TF 727, NP 229
Jacobs Pro-Street Ignition, Edelbrock 4bbl Intake with Holley 2bbl Analog Pro-Jection
Flowmaster 2.5" 50 Series Delta muffler and tubing
Amzoil foam air filter, Amzoil fluids all around
30x9.5 BFG AT
HF,VHF,UHF ham rigs and too many antennas (not)
8-Ball shift knob from college (1975)

Mileage? We don't need no stinkin' mileage!