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jmancini · 05-11-2004, 05:45 PM

I've got a DOHC in my 1990, so not an SR, but here's what I did to get A/C up and running:

You will need a compressor from a DOHC or SR setup. Apparently the DOHC compressor (which is altogether different from the 1989-90 compressor) will match up 3 of 4 bolts to your SR. Obviously the SR compressor is the better way to go.

Then you will need AC lines (both) from both the 1989-90 setup and the DOHC/SR setup. Reason is that the fittings at the compressor are different, AND the fittings on the firewall are different sizes. In other words, the DOHC/SR lines won't bolt to your a1989/90 firewall. You will then need to visit an A/C shop and have them splice together the 2 sets of A/C lines in order to get the correct match of fittings on both ends.

To refill the coolant, you'll have to change to the current 134a coolant, which means the entire system gets flushed, new rubber fittings on all connections, and a new dryer (silver cylinder device located on passenger side of radiator).

I had a local shop do all this work...cost me about $300 if I remember correct. Beats sweatin' you arse off....

05-11-2004, 05:45 PM	#9
jmancini Join Date: Mar 2002 Posts: 22 Trader Rating: (0)	I've got a DOHC in my 1990, so not an SR, but here's what I did to get A/C up and running: You will need a compressor from a DOHC or SR setup. Apparently the DOHC compressor (which is altogether different from the 1989-90 compressor) will match up 3 of 4 bolts to your SR. Obviously the SR compressor is the better way to go. Then you will need AC lines (both) from both the 1989-90 setup and the DOHC/SR setup. Reason is that the fittings at the compressor are different, AND the fittings on the firewall are different sizes. In other words, the DOHC/SR lines won't bolt to your a1989/90 firewall. You will then need to visit an A/C shop and have them splice together the 2 sets of A/C lines in order to get the correct match of fittings on both ends. To refill the coolant, you'll have to change to the current 134a coolant, which means the entire system gets flushed, new rubber fittings on all connections, and a new dryer (silver cylinder device located on passenger side of radiator). I had a local shop do all this work...cost me about $300 if I remember correct. Beats sweatin' you arse off....