I am in the process of flushing all the lines/hoses, condenser, and evaporator on the '87 GT 5-speed, before putting it back together with a new compressor, accumulator and O-tube. Using: A/C Pro - Power Clean & Flush in a 17 oz. can.

Is the small cylinder on the high pressure side (smaller line) of the two hose unit that goes between the compressor and the disconnect block (under the air box), an expansion tank of some sort?
Is that smaller line flushable with that little tank/cylinder?

I just wanted to check before flushing it.

Thanks for the help.

[This message has been edited by hdryder (edited 08-11-2013).]

The little cylinder thing is a muffler. It's hollow.
I read that you are not supposed to flush it, but I flushed mine. I just made very sure to get all of the moisture out of it.
I forget what I used. Probably brake cleaner. The main thing is that I didn't want any particles to be left behind.
After I did that, I heated it up with a torch to evaporate any liquid that might still be inside it.
If you do that, be very careful not to heat up the hoses too much.