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24/09/2022 12:19 pm
Topic starter
Scottie
I'm changing the AC compressor (Compressor body is damaged forcing a replacement.) & drier in my 1993 f-250. The old unit ran the old R-12. if I switched the compressor and drier to R-134a, will the old oil left behind in the rest of the lines damage the new compressor?
Thanks,
P
3 Answers
5
24/09/2022 2:01 pm
Here's a step-by-step from a Ford forum - looks like you're going to need a kit/some additional parts
https://henryford150.com/r12-to-r134a-conversion/
4
24/09/2022 5:27 pm
You need to flush out as much of the old oil as possible. It is not compatible with R134a.
2
24/09/2022 5:45 pm
You might want to consider replacing those 30-year-old AC hoses while you're at it.
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