Quote:
Originally Posted by Hip001
Hey guys thanks for your replies here.
I have a 1985 300d and a 1986 300sdl. I was wondering in general if there is a way to make the AC work better in both. Both have been converted to 134a and seem to work ok but here in Florida it gets HOT! both seem to blow consistantly close to 50 while getting close to 40 degrees on occation for very short periods of time. According to the mechanic the levels of 134a are fine.
Any ideas?
Thanks for your help!
Hip
|
If your certain the charge is good, I would go with cleaning the evap.
Then go under the hood and insulate every pipe you can find that carries the cold stuff (low side).
After that go out to the front of the car, remove the aux. fan (or fans) and clean the Sh@t out of the condenser. With the amount of love bugs, dragon flies, gnats, mosquito's and butterflies... It is likely that you condenser is at least partially blocked. A little soap, water and a toothbrush works pretty good. Then blast it with water and re-install the fan (or fans).
Also, I found on mine that a bunch of the condenser fins were bent. So, I spent a good hour with a tiny screw driver bringing all the fins into the correct position. They make a special "comb" for this, but I did not feel like driving around trying to find one. It is not that difficult to fix them. Anything blocking air flow is reducing the efficiency.
I get 35 to 37 out the vents on mine with R12. Even on the 99 degree days. I imagine the 134 might be a little less, but not much. If you are getting 40 out the vents... My bet is that you probably won't be able to do much better.
Good Luck!!
