So no ****, there I was, started tearing into my 1970 Electra's 455 to fix the timing cover leak and chase a coolant leak. The plastic is super fragile and I broke a piece. However, I'm not sure what it is and can't seem to identify it in my chassis manual. Any suggestions would be greatly appreciated. Also, it looks like the wires are being jumped with an old fuse/resistor? what's that about?
And the electronic bit is a capacitor to help with radio interference if I remember right. http://www.wiringharness.com/tcs.htm Devon
Yup. TCS. It served to inhibit the vacuum advance until the engine is above a certain temperature and the transmission is in high gear, to reduce NOx emissions. You can take it off and throw it away, if you want. It's already disconnected from the supply vacuum, right?
I once paid a lot of money for one of those the last time I smogged my car in California, probably 25 years ago.
Thank you all Glad I saw your comment SteeveeDee, I was just about to look for a replacement. Yes it's disconnected, I was taking things apart to fix an oil leak in the timing cover and to switch over to EFI/Electronic Ignition
If it's only emissions and not necessary for function then I'll pass; looks like the are $100+. I'd rather spend that money towards a cam, heads or intake.
Even in California, you would be exempt from inspection, so you can remove it with impunity. Maybe save the pieces. Sometimes guys want to make their vehicle exactly like it came out of the factory and can use the pieces. There is also a pressure witch on the trans that completes the circuit when it reaches high gear. Somewhere you should be able to find a vacuum diagram that shows which thermal switch controls the vacuum to the distributor, as well. There was a minimum engine coolant temperature required.
I mocked the whole system up on my 71, but blocked the vacuum lined and ran the advance hose direct.. looks stock, totally non functional.
