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My 944, 1984
My 924S, 1987
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944 Spec Data - Workshop
A/C R134a
A/C Freon R12
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Idle 1982-1985
Idle 1985.5-1989
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The Rubber Band Broke
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A/C R134a

Retrofitting R12 A/C System to Refrigerant R134a

Retrofitting R12 A/C System to Refrigerant R134a - TSB 89501
 Page 01 - Intro
 Page 02 - Intro
 Page 03 - Intro
 Page 04 - 944 Early
 Page 05 - 944 Late, 944S, 944Turbo, 924S
 Page 06 - 968
 Page 07 - 911
 Page 08 - 911
 Page 09 - 911Turbo
 Page 10 - 911Turbo
 Page 11 - 928, 928S
 Page 12 - 928S4, 928GT
 Page 13 - 928S4, 928GT, 928GTS
 Page 14 - Repair Info
Use of Correct A/C Refrigerant - TSB 89602

You can still Buy Freon R12 on eBay

Mainstream Engineering Corporation

Get your EPA Section 609 MVAC Certification $19.95
Take the test online. Open book. No time limit.

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