Hello,

I have been slowly making progress fitting the final vacuum hoses on the engine but none of the diagrams I find match completely.

I don't have the anti-flashback valve. Is that normal for a '76? Do I just ignore that circuit?

Also, how are the hoses connected for the charcoal canister filter? I know one goes to the air cleaner. I'm not sure where on the fan shroud the other one goes to. Are there fittings to make the connection or should the hose just fit snugly on the nipple? The hoses I have seem to fit loosely or not at all.

I would appreciate a few pics of the hose connections and the routing so I can match it up with what I am seeing.

BTW the EGR and air injection is gone so that may affect picture selection.

Thanks in advance
Bob.

The 76's did not have vented heads, so no afb valve.

No hose clamps. Just friction fit. Replace the hoses and they will fit tight.

the carcoal canister connects to the fan housing down low battery side. forget about the advance side of the dizzy if you have a 76 set up, just the retard side gets vac. were you referring to the Decel valve when you said anti flashback. If so, without one you'll get some very mild popping on deceleration when cold.

If I'm not mistaken, there is an entire section or thread in history/originality that has pictures of engines.

76-914: The hoses are new so they must be the wrong ones. They came in a kit which doesn't seem completely correct.

The Cabinetmaker: I meant AFV. The decel valve is connected. I already have the vac advance to the dizzy hooked up. Should I remove and plug that one? Why?

Thank you for the help.

76 posted about the decel valve, i posted about the hoses.
Where do you have the vacuum advance hooked to?
There is no connection for it on a late model throttle body.
The connection on the rear of the tb is for retard.

Does this help? Jeff Bowlsby site...



http://bowlsby.net/914/Classic/TechNotebook.htm

It comes off the plenum as shown on Jeff Bowlsby's "late-1974 2.0 diagram Circled and arrowed in red. I have the retard hose connected as shown.

Click to view attachment

This is the closest diagram to what I see on my engine.

914Eric: Oh, I have searched! Those and many other pics. I just cant find one or several combined that show what I need to see.

I have also never been able to find a pic of the oil tower I have with the adapter for the vacuum hose. Someone said they shoved the hose in the hole but that can't be correct. Here's mine, if anyone can show me what it should look like with the hose attached I would greatly appreciate it.

Click to view attachment

send 'em back. my first set was incorrect and sent them back to AA for the correct kit. after a while you end up with your own supply house.

Jeff's diagram is not indicating the vacuum advance should be hook to the intake plenum but is indicating that the hose should be left disconnected but tucked under the plenum. The advance is not used on 75/76 but the advance canister needs to be open to the atmosphere and so a hose is added and tucked down under the intake. This keep moister out of the canister but allows the diaphragm to moved when the retard port get vacuum.

The large port on your oil filler should be connected to a port on the air filter housing the same size, should be on the driver side front corner area of the housing.

Without the vent ports on the heads you won't have an Anti Flashback Valve, just the 1 crankcase vent on the oil filler.

Jim

Jim is correct about the advance hose . If it connects to the plenum, its under constant vacuum. He also echos what I said about the anti flashback valve.

I dont believe that is a 914 oil filler tower, which holds the PCV for the late 1.7L and all 2.0L. The 1.8L towers have a hose connection on the filler funnel itself. Maybe your tower is a transplant from a bus or VW T3 or? Someone more knowledgeable than me may recognize it.

that is the correct tower. I gave up and ran a 7/8" or 3/4" (can't remember which) heater hose with a rubber step down reducer (aka disposal connector) to connect to the air box. That was 4 yr's ago and it's still working.

That would explain a lot.
I have one from a 1.7 with the PCV/hose adapter in it. I'll use that.

Thanks.