C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Rebuilding Blend Door Actuator?

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Old May 6, 2025 | 03:04 PM
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Default Rebuilding Blend Door Actuator?

Has anyone ever repaired the blend door actuator? Admittedly, I own a 86 berlinetta camaro, but it uses the same blend door design as the vettes.

I can hear the motor spinning but the linkage doesn’t move, I’m assuming the gears inside are toast.
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Old May 6, 2025 | 06:54 PM
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Not likely to happen. Once the plastic gears inside break there are no replacements available.
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Old May 6, 2025 | 10:17 PM
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Originally Posted by RWDsmoke
Not likely to happen. Once the plastic gears inside break there are no replacements available.
Doesnt mean you cant be inventive and make some with a 3d printer or something
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Old May 9, 2025 | 03:51 PM
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Originally Posted by jdjenk
Doesnt mean you cant be inventive and make some with a 3d printer or something
You would have to have good gears in the first place to scan so you could print them.
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Old May 9, 2025 | 04:04 PM
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Im not a 3d artist, but id imagine if you have 50.1% of a gear you could mirror the other half.
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