Part identification question

[CatsRock]

I'm trying to identify correct part name and part number from the below pictures. On a 1973 351C Q motor, 2 electric connectors and 2 vacuum lines, one to egr behind carb and other to vac tree. Thanks in advance

 

[jeff8877]

Hello,

I also have a 73 Q code. Here is a vacuum diagram for your car showing it as a solenoid valve. Also, you have it installed upside down as electrical connections should be on top.

Could you post a pic showing what vacuum lines go to the vacuum tree on firewall and where they are coming from...thanks.

 

[CatsRock]

Thanks Jeff for the diagram, and telling me its upside down. Obviously the green tagged vac line goes to the egr, the blue tagged vac line goes to the 2 port valve (#2) at the Passenger Side front of motor (not the 3 port valve (PVS) at the water pump also on PS). There is a 4 port tree on the firewall, 2 go to the transmission (modulator) and i'll have to trace the other 2, don't have a pic. I'm trying to get a part number so I can get a backup in case this one goes south, searching under solenoid hasn't helped.

Mark


It seems from pictures I took one port on the firewall tree goes to the tree (vacuum) on the rear of the manifold, also where the line going to the brake booster is fed from.

 

[barnett468]

Thanks Jeff for the diagram, and telling me its upside down. Obviously the green tagged vac line goes to the egr, the blue tagged vac line goes to the 2 port valve (#2) at the Passenger Side front of motor (not the 3 port valve (PVS) at the water pump also on PS). There is a 4 port tree on the firewall, 2 go to the transmission (modulator) and i'll have to trace the other 2, don't have a pic. I'm trying to get a part number so I can get a backup in case this one goes south, searching under solenoid hasn't helped.

Mark


It seems from pictures I took one port on the firewall tree goes to the tree (vacuum) on the rear of the manifold, also where the line going to the brake booster is fed from.

the orig solenoids are no longer avail . . you can buy new aftermarket ones.

http://www.oldairproducts.com/catalog/

 

[CatsRock]

Thanks, the top one looks possible, has a few different models/options/choices, the bottom pic is a 3 port. I was hoping to cross reference a part number and maybe find a NOS one somewhere . For example i've been searching old ford parts lists and came across a D2AZ12A170B on FleaBay, looks very similar but not sure it would work on my 73.

http://www.ebay.com/itm/NOS-Distributor-Modulator-Valve-Ford-Galaxie-LTD-LX-69-70-71-72-500-BRONCO-74-75-/271517952631?hash=item3f37bb2a77&vxp=mtr