1967 c10 firewall wiring questions

[michael bustamante]

OK first question. On the passenger firewall kinda right behind the passenger side head you can see where you mount the wiring. (In pic) what the heck do you use to mount the wire grommet thing there?
Second question: I know the purple and yellow wire in pic go to the starter. What's the blue rounded groomet wire for?
Thanks guys
Mike

[Steve Cole]

In the first pic, I believe I installed that under one of the engine/bell housing bolts. Look down behind the distributor and you will see the bolts.. Is it right,? no idea. The second pic, I would look at the wiring diagrams and see what it goes to.

[EARNHARDT#3]

Was that a dummy light cluster truck? Looks like that blue one is for an oil pressure sender/switch.

[Davidf]

I mounted the starter pigtail mounting clip to the rear most exhaust bolt. But, something tells me it bolts to the rear of the head. Assembly manual might help here. That blue wire looks like it would connect to a temp sensor in the head. Left side, the sensor is the front of the engine, so right side would be the rear just above the starter solenoid. I think engines with TSC (did I get initials correct) used a temp sender in this location...could be wrong. Or a truck with idiot lights could use a temp sender on the right head.?

Edit: Oops, just re-read thread title and I didn't think a '67 would have TSC.

[michael bustamante]

man you guys are good!!
i bet youre right. now that you said it, im sure it does bolt to my tranny. i did on my 4 speed. and yup it is a dummy light setup.
thanks for your help guys i really appreciate it. i forget about the oil pressure switch. my engine has a gauge set up. ill have to cap that blue wire im thinking