tcs switch installation
Safety Car
Joined: Dec 1999
Posts: 3,599
Likes: 837
From: PA
The seal is provided by a copper washer.
I’m told by an original owner of an early build 1970 that the washer wasn’t initially used in production and leaked badly as a result. The washer was added later in 1970 production to eliminate the leak.
Regards,
Stan Falenski
I’m told by an original owner of an early build 1970 that the washer wasn’t initially used in production and leaked badly as a result. The washer was added later in 1970 production to eliminate the leak.
Regards,
Stan Falenski
Thread Starter
3rd Gear
Joined: Jan 2022
Posts: 3
Likes: 0
TCS switch seal
When I removed the broken switch from the transmission, I found 2 copper washers. The previous owners had broken off the plug on the outside and removed the steel ball on the inside and brazed the hole shut. I saw in the Chevrolet Chassis Overhaul Manual that in the transmission break down, a gasket was shown but I didn't know what it was made of.
Burning Brakes
Joined: Aug 2007
Posts: 897
Likes: 245
From: Green Valley Ca
TCS ( Transmission Control Spark System ) it operates in controlling the vacuum to the vacuum advance on the distributor.
The vacuum is blocked until the transmission is third or fourth gear, or when the motor overheats.
The vacuum is blocked until the transmission is third or fourth gear, or when the motor overheats.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Team Owner
Joined: Mar 2002
Posts: 44,650
Likes: 1,827
From: Huntsville AL
When I was researching the TCS system on my 73 and putting everything back to OEM I had one of those light blub moments and said no way that is going back on the car. One example of GM engineers getting it wrong by being force into bad emission regulations.