help identify relays

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Feb 17, 2019 | 08:32 AM

Primoz

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help identify relays

Can someone please help me identify the relays on the pictures?

I can't find them under those part numbers from AIM on any site (only NOS available). The one pointed with green arrow is power window circuit breaker?
The thing is that my car is a 71 with a TH400. I don't have any of the sensors and carburetor solenoids on my car. The only things left are kickdown switch on the gas pedal.
Are these relays neccessary for everything to work?

Last edited by Primoz; Feb 17, 2019 at 11:04 AM.

Feb 17, 2019 | 12:41 PM

MelWff

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TCS stands for transmission controlled spark. it is an emissions system designed to provide vacuum advance only when the transmission is in high gear. Unless you want them for originality there is no need for them.

Feb 17, 2019 | 12:42 PM

Primoz

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What about the kickdown? Does that work solely from the gas pedal switch?

Feb 17, 2019 | 12:44 PM

MelWff

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yes the th400 uses the kickdown on the gas pedal in conjunction with the vacuum modulator to control gear shifting.

Feb 17, 2019 | 12:53 PM

Primoz

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What about the ground wires that connect to those relays?
Will everything work without them?

Feb 17, 2019 | 12:55 PM

MelWff

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what exactly do you mean by "everything"? How is the vacuum advance hose on your distributor connected, directly to the intake manifold or carburetor?

Feb 17, 2019 | 12:56 PM

Primoz

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Quote:

Originally Posted by MelWff

what exactly do you mean by "everything"? How is the vacuum advance hose on your distributor connected, directly to the intake manifold or carburetor?

Carb!

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