summers coming. with the mild winter we had, it may be a warm one. came across this article, and thought it might intrest someone. http://www.iroczone.com/projac01.html

Thanks. Probably one of the best and most informative explanations of the conversion I have seen to date. My AC is getting lazy(still factory charge) and I guess I will bite the bullet and do it right. Thanks again, Danno

That looks like a fairly well written article. It is good to see that they included the oriface tube in their conversion, since that will be crucial in best system performance. With the stock tube set, the expansion rate is too low to provide decent cooling with 134a. The rest of the article is just good common AC service practice.


The one thing lacking in the article is a mention of barrier hoses. Though maybe not absolutely necessary fot the 134a conversion, it would be an excellent time to change to barrier hoses, considering the originals are probably leaking anyway after ten-plus years of use.

back to the top, is getting hot around here.

I have converted 3 of my vehicles with the Interdynamics kits bought from WalMart.They work fine.All I did was install new accumulators and replace the o-rings.The adaptors DO have their own schrader valves but I've had trouble with them leaking.All 3 cool to within a couple of degrees of when they contained R12.One of the cars is a 66 Impala.