rthenry145 Posted July 25, 2018 Share Posted July 25, 2018 I am looking for the vacuum hoses / harness for the VCV and would appreciate any help, part number(s), etc. I have a replacement VCV, Motorcraft # CX-241, D8TE-9D473-B2A but no harness to go with it. Here's a pic of my existing VCV that I'm replacing. Here's a pic of what I believe the harness should look like. and here's my vacuum hose chart. Help? Suggestions? Link to comment Share on other sites More sharing options...
1986F150Six Posted July 25, 2018 Share Posted July 25, 2018 The original hoses were plastic and prone to breaking after many years. Follow the diagram for routing and you can replace the hoses with rubber vacuum hoses. Link to comment Share on other sites More sharing options...
rthenry145 Posted July 25, 2018 Author Share Posted July 25, 2018 The original hoses were plastic and prone to breaking after many years. Follow the diagram for routing and you can replace the hoses with rubber vacuum hoses. Gotcha, I wondered if that may be why they are hard to find. ALL NOS was used up due to breaking, etc . Link to comment Share on other sites More sharing options...
rthenry145 Posted July 25, 2018 Author Share Posted July 25, 2018 Gotcha, I wondered if that may be why they are hard to find. ALL NOS was used up due to breaking, etc . Anyone know what the 4 port letters on the VCV mean and routed to what as based on the vacuum chart. From the bottom up, S E M D. I think I can follow the vacuum chart but just want to understand the codes / letters on the VCV. Link to comment Share on other sites More sharing options...
Gary Lewis Posted July 25, 2018 Share Posted July 25, 2018 Anyone know what the 4 port letters on the VCV mean and routed to what as based on the vacuum chart. From the bottom up, S E M D. I think I can follow the vacuum chart but just want to understand the codes / letters on the VCV. I don't know, although Dave/Fuzzface may know as his vacuum diagram looks just like yours. But, is this a full-on restoration? In other words, do you need to put it back exactly like it was? Link to comment Share on other sites More sharing options...
1986F150Six Posted July 25, 2018 Share Posted July 25, 2018 I don't know, although Dave/Fuzzface may know as his vacuum diagram looks just like yours. But, is this a full-on restoration? In other words, do you need to put it back exactly like it was? Vacuum Diagram Definitions Abbreviation Description A/CL Located in the air cleaner A/CL DV Air Cleaner Diverter Valve A/CL BI MET Air Cleaner Bi-Metallic Valve A/CL CWM Air Cleaner Cold Weather Modulator ACT Air Charge Temperature Sensor, prior to 1992 ACTS Air Cleaner Temperature Sensor ACV Air Control Valve AIR Thermactor, short for Thermal Reactor. CA vehicles are installed with it as standard. Air Injection Reaction is what it stands for. AIR BPV AIR Bypass (AIRB) Valve; also called the TAB (Thermactor Air Bypass) Valve BV Bowl Vent (on top of the float tanks) CARB Carburetor CBD Closed Bowl Distributor CPRV Canister Purge Valve DIST Distributor DPFE Differential Pressure Feedback DV-TW Two Way Delay Valve EFCA Electronic Fuel Control Assembly/ (Fuel Pressure Regulator (FPR) EGR Exhaust Gas Recirculation EGRC/EGRV EGR Vent/EGR Control EXH HCV Exhaust Heat Control Valve EVP EGR Valve Position EGR Valve Position EVR EGR Vacuum Regulator; also called EGR Vacuum Solenoid FLTR Filter FPR Fuel Pressure Regulator (check vacuum line) HEAT VLV INT Heat Vacuum Control Valve Intake, (next to carb) HICV Hot Idle Control Valve IAT Intake Air Temperature Sensor (Air Charge Temperature (ACT), prior to 1992 IVV Thermactor Idle Vacuum Valve LCV EGR Load Control MAN VAC Manifold vacuum-Vacuum source; usually ref. to as Vacuum Tree atop intake manifold MAP Manifold Absolute Pressure PCV Positive Crankcase Ventilation PURGE Vapor Canister Purge Valve PV Ported Vacuum PVS Ported Vacuum Switch (PVS) Valve S Spark port SA-FV Separator Assembly Fuel/Vacuum SOLV Thermactor Solenoid Valve SV CBV Carborator Fuel Bowl Solenoid Vent Valve TCAC Thermostatically Controlled Air Cleaner TCP Temperature Compensated Accelerator Pump TK Throttle Kicker TVS Throttle Valve Solenoid (aka Solepot, Dashpot) OR Temperature Vacuum Switch TVV Thermal Vacuum Valve OR Thermostatic Vacuum Valve (aka Ported Vacuum Switches; Thermal Vacuum Valve) VAC Vacuum VCKV Vacuum Check Valve VCV Vacuum Control Valve VDV Vacuum Delay Valve V CK V or VCV Vacuum Check Valve VOTM Vacuum Operated Throttle Modulator VRDV Distributor Vacuum Delay Valve (VDV, VRDV, DV-TW) VRDV Vacuum Delay Valve (VDV, VRDV, DV-TW) VRESER Vacuum Reservoir (coffee can style in earlier years; replaced by plastic style) VRESV REST on earlier years such as SEABRONC's 83 is a Vacuum Restictor/delay valve, it delays vacuum for a certain amount of time VRV Vacuum Regulator Valve WOT Wide Open Throttle Valve Link to comment Share on other sites More sharing options...
Gary Lewis Posted July 25, 2018 Share Posted July 25, 2018 Vacuum Diagram Definitions Abbreviation Description A/CL Located in the air cleaner A/CL DV Air Cleaner Diverter Valve A/CL BI MET Air Cleaner Bi-Metallic Valve A/CL CWM Air Cleaner Cold Weather Modulator ACT Air Charge Temperature Sensor, prior to 1992 ACTS Air Cleaner Temperature Sensor ACV Air Control Valve AIR Thermactor, short for Thermal Reactor. CA vehicles are installed with it as standard. Air Injection Reaction is what it stands for. AIR BPV AIR Bypass (AIRB) Valve; also called the TAB (Thermactor Air Bypass) Valve BV Bowl Vent (on top of the float tanks) CARB Carburetor CBD Closed Bowl Distributor CPRV Canister Purge Valve DIST Distributor DPFE Differential Pressure Feedback DV-TW Two Way Delay Valve EFCA Electronic Fuel Control Assembly/ (Fuel Pressure Regulator (FPR) EGR Exhaust Gas Recirculation EGRC/EGRV EGR Vent/EGR Control EXH HCV Exhaust Heat Control Valve EVP EGR Valve Position EGR Valve Position EVR EGR Vacuum Regulator; also called EGR Vacuum Solenoid FLTR Filter FPR Fuel Pressure Regulator (check vacuum line) HEAT VLV INT Heat Vacuum Control Valve Intake, (next to carb) HICV Hot Idle Control Valve IAT Intake Air Temperature Sensor (Air Charge Temperature (ACT), prior to 1992 IVV Thermactor Idle Vacuum Valve LCV EGR Load Control MAN VAC Manifold vacuum-Vacuum source; usually ref. to as Vacuum Tree atop intake manifold MAP Manifold Absolute Pressure PCV Positive Crankcase Ventilation PURGE Vapor Canister Purge Valve PV Ported Vacuum PVS Ported Vacuum Switch (PVS) Valve S Spark port SA-FV Separator Assembly Fuel/Vacuum SOLV Thermactor Solenoid Valve SV CBV Carborator Fuel Bowl Solenoid Vent Valve TCAC Thermostatically Controlled Air Cleaner TCP Temperature Compensated Accelerator Pump TK Throttle Kicker TVS Throttle Valve Solenoid (aka Solepot, Dashpot) OR Temperature Vacuum Switch TVV Thermal Vacuum Valve OR Thermostatic Vacuum Valve (aka Ported Vacuum Switches; Thermal Vacuum Valve) VAC Vacuum VCKV Vacuum Check Valve VCV Vacuum Control Valve VDV Vacuum Delay Valve V CK V or VCV Vacuum Check Valve VOTM Vacuum Operated Throttle Modulator VRDV Distributor Vacuum Delay Valve (VDV, VRDV, DV-TW) VRDV Vacuum Delay Valve (VDV, VRDV, DV-TW) VRESER Vacuum Reservoir (coffee can style in earlier years; replaced by plastic style) VRESV REST on earlier years such as SEABRONC's 83 is a Vacuum Restictor/delay valve, it delays vacuum for a certain amount of time VRV Vacuum Regulator Valve WOT Wide Open Throttle Valve David - Would you check to see if I have all of those captured here: Underhood/Vacuum Systems/Vacuum Diagrams. (You have to click twice on Vacuum Diagrams, which probably isn't the best approach.) Link to comment Share on other sites More sharing options...
85lebaront2 Posted July 25, 2018 Share Posted July 25, 2018 Anyone know what the 4 port letters on the VCV mean and routed to what as based on the vacuum chart. From the bottom up, S E M D. I think I can follow the vacuum chart but just want to understand the codes / letters on the VCV. My guess would be: S - Signal, E - EGR valve, M - Manifold, D - Distributor. The issue comes in what the valve was originally used on, so the letters may or may not be of any value. Link to comment Share on other sites More sharing options...
1986F150Six Posted July 25, 2018 Share Posted July 25, 2018 David - Would you check to see if I have all of those captured here: Underhood/Vacuum Systems/Vacuum Diagrams. (You have to click twice on Vacuum Diagrams, which probably isn't the best approach.) "David - Would you check to see if I have all of those captured here: Underhood/Vacuum Systems/Vacuum Diagrams." Whew... that is not easy! The list I copied from The Ranger Station, has 62 items. Your list has 27 items. On your list, is the following not on the list I copied: C: Choke, VRV: Vacuum Regulator Valve; TVS: Thermal Vacuum Switch [Throttle Valve Solenoid on my copied list] and V: Vent. Link to comment Share on other sites More sharing options...
rthenry145 Posted July 25, 2018 Author Share Posted July 25, 2018 I don't know, although Dave/Fuzzface may know as his vacuum diagram looks just like yours. But, is this a full-on restoration? In other words, do you need to put it back exactly like it was? No Sir, Not a full on restore, I want it running right of course and will gladly tinker her and there as some thing have already disappeared like the SMOG / AIR PUMP system, which I assume was on it when new. It's seen a lot of mechanics from a lot of locations over the years, lol ! I will have questions to understand just what I can safely tinker with, i.e. use intake manifold vacuum instead VCV if possible. What ports can be plugged on my cart YFA 1bl, etc ... I'm a bit OCD and sometimes want to understand it more than anything so I can make minor changes as they prsent themselves. For example my CARB is missing the WOT so I know this is an issue with getting the EGR working correctly. It's been suggested to just cap off the EGR tube and also plate the exhaust /gas ports too. Link to comment Share on other sites More sharing options...
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