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

TPS sensor bolt broke, 1993

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Old May 15, 2024 | 04:21 PM
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Default TPS sensor bolt broke, 1993

TPS sensor bolt broke, and I want to clean the threads. What tap/thread chaser should I use for M4.5x7.5 bolt.
1993 TPS sensor LT1
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Old May 15, 2024 | 05:56 PM
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you can use a M4.5x7 tap. Just be careful and make sure you're going in square to the TPS mounting surface.


On mine, I ended up just JB-welding in some 10-32 studs into the holes. Now I just slip the TPS over the studs and use nuts and washers.
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Old May 15, 2024 | 06:48 PM
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I like the studs idea.. Nice..
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