Re: IML: A/C ReVamp - RePlacing Parts?

["Steve B." <Imperial59@xxxxxxxxxxxxxxx>]

> .It's best to charge through the HI-SIDE, or compressor discharge side, 
> this prevents SLUGGING the compressor at start->up. Evacuating the system 
> will not remove the lubrication oil, so careful measurement of oil in the 
> compressor is important.

You can dump the initial can in to the high side ***with the engine off***. 
You never want to charge through the high side with the compressor running. 
The high side pressure on a running system can top 250psi and those little 
cans have a design spec of 180psi.    Also be careful not to sit the can of 
refrigerant on the engine.  At 130 degrees the pressure in the can is 
200psi.

A couple of other thoughts here...
All the rubber hoses should be replaced.  Any a/c shop can take your 
existing hoses and replace the hose while reusing your ends.  Just like all 
the rest of the hoses a/c hoses age and can fail.  I had a high pressure 
hose blow on me one time while charging and you would be amazed at the huge 
cloud of refrigerant / oil it made.  One of the very few times in my life I 
wondered if I was dead for a second or two....   My '73 didn't let go right 
away but after a month or so the low pressure line grew a bubble that got 
bigger and bigger until it let go one day and let out all the refrigerant. 
It is disheartening when that happens because you have to start all over 
again with a new dryer / oil / vacuum and recharge.

Replace all the o-rings while it is apart.  That are dirt cheap and not hard 
to replace.

Make sure you charge with a good set of gauges that lets you watch the high 
and low pressure sides while charging.  Situations can develop that will 
send the high side through the roof while everything still looks decent on 
the low side.

                Steve B. 


-----------------  http://www.imperialclub.com  -----------------
This message was sent to you by the Imperial Mailing List. Please 
reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be 
shared with everyone. Private messages (and attachments) for the
Administrators should be sent to iml.webmonster@xxxxxxxxx
To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm