Help!!!!!!

Does anyone know how many pounds of refrigerant that the air conditioning system in the svx requires? the data plate is missing from my engine compartment, and I need to fill it up after an accident with the transmission rebuild let it all out.

Please reply if you know!

Thanks,

Trent

[MoreIBNR]

Need to know what year, as at the least, they switched from R12 to R134 in 1993. I suspect the specs are different.

it's a 1992 using r-134a

[MoreIBNR]

You're in luck - my 1992 was also converted over to R-134. My sticker says 1lb 12oz of refrigerant and 2oz of lubricant.

I trust that yours should be similar.

[Uncamitzi]

Does anyone know how to find out if their car was converted to R134? I'm not sure I know where to look.

[MoreIBNR]

I am not 100% sure, but I think the valves are different (so you can't hook up the wrong equpment).

If it was done reputably, there should be a sticker somewhere.

Also, the dryer/receiver should have been replaced.

Don't take any of this as truth as I may not know what I am talking about.

[Beav]

Originally posted by Uncamitzi
Does anyone know how to find out if their car was converted to R134? I'm not sure I know where to look.

Well....reputable isn't quite the right choice of words, but yes, if it was converted there should have been a sticker placed under the hood. Putting 134 in a 12 system requires special valves that install over the existing ones. Only a schlock outfit would put 134 in and take the valves back off, plus most valves self-destruct when removal is attempted.

A new drier is not a requirement, however new 'o'-rings are a good idea as R-134 is molecularly smaller than R-12 and leaks more easily (both through gasketing and diffusion.) Actually a R-12 system should be flushed, removing all traces of the oil that was installed with the R-12 charge and then a new charge of the proper oil installed (such as PAG, which goes both ways.) I hear a lot of techs that just dump the 134 in and say they never have a problem, and I also read the updates that state the oil in a R-12 system won't properly lubricate the system when 'contaminated' with R-134.

Anyway, it's difficult to explain the difference between the valves if you don't know what the old R-12 valves looked like. I'll bet that a quick stop at a parts store or garage would a quick answer for you.

Beav

[Uncamitzi]

Only one problem. Who ever repainted (poorly) this, used to be pearl now it's just white car, negelcted to put any of the stickers back on. I 've had to order new stickers for the vacuume and wiring for the state people. I guess it's off to the dealer in Santa Cruz to see if they can tell. I like riding over the mountain anyway!