Old Blue went under the knife today to fix inop stepper motors by pulling a modified version of Alfa TSB Alfa 164 TSB 80.93.02 and Alfa 164 TSB 80.94.01
Turns out somebody has been there before me and car already had brass ring on air distributiion drum and the latest 60610100 stepper assembly (Bosch 0 132 010 322) but neither motor worked as somebody had glued on front motor for air drum without mounting screws and jammed a piece of old hollow lawn garden hose in along side motor to hold it in place and guess it didn't work and gear on motor not engaged into gear box.
Not sure why rear temp motor wouldn't work, but appeared motor gear not engaged either as I could move temp lever back and forth from false firewall side and lever moved on gear box. Opened gear box and all gears look good reassembled it and test with power and it works.
Plugged in another stepper to test a/c panel and system wiring and that all checks out.
I managed to get the stepper assembly out with out pulling dash as front end not engaged correctly and I got rear two screws out through openings in glove box without cutting any thing.
But that is where my luck ended so I did the TSB procedure of removing enough stuff and screws to pull back right side of dash and get the defrost ducts out so I can install good stepper maybe tomorrow.
Wore my blue "surgical" gloves and removed the mushy black foam bricks without to much mess.
Turns out somebody has been there before me and car already had brass ring on air distributiion drum and the latest 60610100 stepper assembly (Bosch 0 132 010 322) but neither motor worked as somebody had glued on front motor for air drum without mounting screws and jammed a piece of old hollow lawn garden hose in along side motor to hold it in place and guess it didn't work and gear on motor not engaged into gear box.
Not sure why rear temp motor wouldn't work, but appeared motor gear not engaged either as I could move temp lever back and forth from false firewall side and lever moved on gear box. Opened gear box and all gears look good reassembled it and test with power and it works.
Plugged in another stepper to test a/c panel and system wiring and that all checks out.
I managed to get the stepper assembly out with out pulling dash as front end not engaged correctly and I got rear two screws out through openings in glove box without cutting any thing.
But that is where my luck ended so I did the TSB procedure of removing enough stuff and screws to pull back right side of dash and get the defrost ducts out so I can install good stepper maybe tomorrow.
Wore my blue "surgical" gloves and removed the mushy black foam bricks without to much mess.
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