1975 1.8 L L-Jet, Questions... Options

[jim_hoyland]

Over the weekend, I read several threads on the L-jet hose connections; then went and looked at mine. Map a map so I could verify the connections. I have a couple of basis questions now:

1. The throttle body has two small hoses; one goes to each side of the distributer-retard and advance vacs.
Question: Does it matter which goes to the advance and retard ?

2. AAR valve was tested and it closes when 12 volts is applied.
Question: How far should it open ? Looked about 25% open to me; and a second one does the same.

3. The decel valve has 2 large hose connections and one small one. the small one hooks up in a Y to the Fuel pressure regulato, ant hen hookk to a second Y to the ERG and then to the plenum.
Question: Is this correct ?

4. Are the boots , between the AFM and throttle body replaceable with any after market products?

[Dave_Darling]

Many of the 74+ cars did not have a vacuum advance fitting on the throttle body. The distributor dashpot (the vacuum cannister thingie) was unchanged, and still had two fittings on it. When there is only one fitting on the TB, you plug the advance fitting on the distributor dashpot to... Nothing. Just run a piece of hose under the manifold somewhere so the Smog Monkeys (or others who look in your engine bay) don't freak out.

The advance fitting was added back for the EGR motors at the very least, and possibly some others.

--DD