niphilli

Posted in this section because I thought a lot of you guys that have installed cams had to do this.

I rubbed a hole in my AC tube and all of the refrig. leaked out. How much will I need to re-fill?

I plan to vacume the system well before the re-charge, any other tips???


TIA,
-Nick

StevieZ

iTrader: (3)

I used 2 cans of refrigerant and 1 can of oil.

Brains

iTrader: (7)

I believe the factory spec is 32oz. of R-134a .. I also used 2 cans + 1 can of oil, and its working very well.. Almost too well, I think I need more freon as I froze up my evaporator on a long trip this weekend But DAMN it blows COLD !!!

BTW - no need to disconnect AC lines to do a cam swap

2xLS1

iTrader: (25)

24 oz. (2) 12 oz. cans.

lbz34

iTrader: (3)

1.5 lbs/24 oz.

mighty mex

iTrader: (3)

hey brains
you need to take out some freon you got too much refrigerant in the system. the refrigerant is getting uder 32 degrees causing the evap. to freeze up then blocking your air flow causing more problems. take a little bit out and check it

niphilli

Thanks guys

niphilli

I went ahead and looked it up. The factory spec is indeed 32oz (2 lbs). Thanks guys

Assassin

iTrader: (3)

get the kit from walmart, I think its like 35 bucks, comes with the hose, 2 cans of refrig, 1 of oil, and a guage so you can tell how full it is!

2xLS1

iTrader: (25)

I don't know where you are looking it up, but the label on the stock air lid clearly says 1.5 lbs.

1.5x16oz=24oz.

Cal

iTrader: (1)

Yup the shop manual for my LT1 car says 2 lbs. I haven't got the shop manual for my LS1 car yet; could they be different?

Cal

iTrader: (1)

Nick, what are you going to use as a vacuum pump to pull the vacuum? BTW, shop manual says to pull it down to 30 inches/Hg, then wait a couple of minutes to see if it holds as a leak check.

Brains

iTrader: (7)

It's actually the opposite -- too little freon in the system, causes a larger pressure drop and thus the temp will drop more at the evaporator coil.. The low pressure side will run abnormally low, dropping the evap. temp under 32 degrees... The system on our cars has a simple orifice tube, so it can't directly control pressure.. If everything is working right, the low side should be around 40-50psi on a hot day at idle, and drop down to ~20-30psi above idle.. I need to put the gauges back on mine, I'll bet it's getting down around 10psi

Stu

Niphilli, I just recharged mine about a week ago and if ya put 2 lbs in it will make way too much pressure and cause the compressor to kick on and off.

I ended up with 1.2 lbs and it freezes me out of the car.


Stu

niphilli

Thanks for all of the posts guys. The car ended up taking about 1.5# of refrig, and a little over a bottle of oil. Our dealership quoted us the 2# number but it turned out to be closer to 1.5 like you all have said.



A friend of my dads has an AC vacume machine.