67 427 Speedo Cable Routing

[Mike P.]

Hello iam having trouble determining speedo cable routing AIM has some conflicting routing for cable. Does it come out of firewall, clip @ lower corner heater box cover area and go to pass side clip @ tunnel area and over to trans, run on top or bottom of splash shield, or does it run down drivers side and cross over top of trans ? There is two clips @ heater cover 45 degrees to each other is the lower clip speedo cable clip and the other for the starter wiring , any help is mgreatly appreciated Thanks Mike

[John H.]

Re: 67 427 Speedo Cable Routing

Mike -

The routing shown in section M20, sheet A4 of the '67 Assembly Manual is correct. The upper of the two riveted clips is for the speedo cable, and the lower is for the starter harness.

[Gary S.]

Re: 67 427 Speedo Cable Routing

I believe you are dealing with 4 clips on the right side of the firewall for a 67 non-air 427 car. You have the two standard clips for the speedo cable (longer than the other two I think), one hanging off the lower inner stud of the heater box for the starter harness and one just below and inward for the positive battery cable to hold it away from the exhaust manifold. This battery cable clip was not used on 327 motors. See the L36 battery cable section in the assembly manual for that clip. Picture attached of the 427 battery clip. In the attached picture, the stud without a nut on it is where the other J clip goes for the starter harness that drops down from the harness that runs along the hood release cable.

Gary

[Mike P.]

Re: 67 427 Speedo Cable Routing

Gary thanks for input, here goes i have two clips @ firewall one that you sent a picture of, and one that is approx 4" up and to the right of it (45degrees) then there is one down next to trans on bottom of floorpan., that makes three then the one on the heater box stud ( which i cant find anything on in aim or elswhere) then there is the retainer on battery heat shield according to upc 12 in aim which the L-36 battery cables refers to. The judging manual indicates small block cars used this but it isnt clear about B.B. cars The L-36 see upc-12 shows it is used. So here is what i think it is supposed to look like the lower clip that you sent pic of is the #1) battery cable clip, the one above and to the right of that clip is the #2) upper speedo clip, then there is one down by trans on floorpan #3)lower speedo clip.#4) starter wiring harness clip on heater box stud (cant verify) #5) battery cable clip on heat shield. Anyone else have input ? Mike

[Gary S.]

Re: 67 427 Speedo Cable Routing

Gary thanks for input, here goes i have two clips @ firewall one that you sent a picture of, and one that is approx 4" up and to the right of it (45degrees) then there is one down next to trans on bottom of floorpan., that makes three then the one on the heater box stud ( which i cant find anything on in aim or elswhere) then there is the retainer on battery heat shield according to upc 12 in aim which the L-36 battery cables refers to. The judging manual indicates small block cars used this but it isnt clear about B.B. cars The L-36 see upc-12 shows it is used. So here is what i think it is supposed to look like the lower clip that you sent pic of is the #1) battery cable clip, the one above and to the right of that clip is the #2) upper speedo clip, then there is one down by trans on floorpan #3)lower speedo clip.#4) starter wiring harness clip on heater box stud (cant verify) #5) battery cable clip on heat shield. Anyone else have input ? Mike

Mike...Only 4 clips on 427 non-air right of center. Yes on the two for the speedo cable. But, there is no clip (plastic tie) used on the battery shield for a battery cable on a 427 car...only used on 327 non-air. The clip in my prior post is used for the positive battery cable on 427 non-air cars. The presence of that clip (or evidence it was there) is one way to verify a car was a 427 car along with several other things of course. The clip on the heater box stud is in the AIM under Engine Wiring Harness...item #22 page G220 in my book (UPC 12 A8). That clip is used on 327 and 427 cars..I think all C2's air and non-air. I have attached two pictures of the heater box clip...easily seen on the car with no engine (327 car) and in the other which is barn-find 435 that is now a 5 Bowtie car. You will note on the barn find the original battery and battery cable still attached goes straight towards the firewall to that special clip, not to the plastic wire tie used on the heat shield for 327 cars. I have done four mid-year body off restorations myself and many engine detailings....have always seen these clips. I have a zillion pictures and can't believe I can't find a better picture of this area. Hope this helps.

[Mike P.]

Re: 67 427 Speedo Cable Routing

Thanks gary thats a big help !

[Gary S.]

Re: 67 427 Speedo Cable Routing

Can't believe all the big dogs were not jumping in on this one....must have spent too much time on the DB and got behind on holiday shopping! I am out this cold PA weather and off to Florida January 5th for the winter. Hope to see you at the NCRS meet there. I am judging 65's...8 cars I am told....twice as many as last year. Great! Gary

[Mike P.]

Re: 67 427 Speedo Cable Routing

Yes i would like to get out of alaska period, been here 30 yrs and it is definetly time for a change. Gary i have another question maybe you could help me with. There is a brown wire (power window harness) behing glove box area and it goes into a wide black connector that has a place for two connections one on each end of it . Schematic indicates it is a radio capacitor connector, but dosent actually show a connector just a line that stops. Cant find anything in AIM specifically for a power window capacitor, i have never heard of one. Thanks Mike

[John H.]

Re: 67 427 Speedo Cable Routing

i have another question maybe you could help me with. There is a brown wire (power window harness) behing glove box area and it goes into a wide black connector that has a place for two connections one on each end of it . Schematic indicates it is a radio capacitor connector, but dosent actually show a connector just a line that stops. Cant find anything in AIM specifically for a power window capacitor, i have never heard of one. Thanks Mike

Mike -

If you'll go to section U69, Sheet A4, the lower left corner of the illustration shows that connector "piggybacked" with the capacitor lead from the power window harness so both end up connected to the radio capacitor, item #5, when A31 power windows are specified.

[Mike P.]

Re: 67 427 Speedo Cable Routing

I looked at aim and it looks like the brown wire i have behind glove box needs to be routed back to drivers side. After looking at it closer iam still a little confused, it looks like there are three connectors, the one far right looks like the one i have behind ignition switch area, them there is the middle one (prod radio capacitor connector brwn wire ) is that another wire coming out of main harness or it looks like it might be the power window harness ? i havent seen that one in car and the third, far left with multiple connections from power window harness. So all thre wires are basically for radio capacitor if it isnt in circuit will any problems arise. Thanks Mike

[John H.]

Re: 67 427 Speedo Cable Routing

Mike -

Referring again to A4 - Without power windows, the brown radio capacitor wire in the cluster harness has a male connector that plugs into the female connector on the capacitor.

With power windows, the power window harness also has a brown wire with a "piggyback" (male/female) connector on it (identified in the illustration as "RPO A31 Ignition Lead"). The male end of that connector plugs into the female connector on the capacitor lead, and the male connector on the brown wire in the cluster harness plugs into the female end of the "piggyback" connector on the brown wire from the power window harness.

Both brown wires (in the cluster harness and in the power window harness) are "hot" with the key "on", so you don't want them flopping around loose.