- Joined
- Mar 5, 2014
- Posts
- 639
- Reaction score
- 196
- Location
- Kansas City, Missouri
- First Name
- ryan
- Truck Year
- 1987
- Truck Model
- r10
- Engine Size
- 350
I am at the end of my carb swap from tbi... I eliminated all of the original harness minus the main battery cable down to the big(middle post) of the starter, the purple ignition wire to the small post nearest the block on the starter, red wire coming off the junction box on the firewall down to the big post on the starter and the pink wire from the coil that now supplies power to the HEI.
I left the factory ground wires alone coming off the battery minus the one that went to the smog pump bracket. I just grounded that straight to the frame. The block is grounded from the rear of the passenger head as is was when I pulled the motor. The small braided wire that is not insulated that goes from the head to the firewall. maybe because the head is painted its not getting a good ground
?? I did not supply power to the alternator because I am not ready for that unless I need it wired up to fire; it is a one wire so shouldnt bother anything? also out of the ecm plug on the firewall there appears to be a orange/tan??? wire with two black/white wires going into a fitting that looks like it should be a ground. any ideas what that is?
when I hook up the battery I did get one kind of click from the starter. not a full attempt to cranking. that one small click is all I could get, tried again and its silent. waited a few and it would do the click then stop again... I felt all the wires and none were getting hot and I didnt see/smell smoke so no short circuits, I hope. I tried to turn the lights on and nothing but the turn signals work? sure enough they blink and all. however there is not anything else, like the horn doesnt honk and again lights do not work. my dash is apart so if those lights are working I wouldnt know. the radio turns on but theres no sound.
so the cab is getting power somehow so my guess is the junction box is getting voltage but I do not have a volt meter nor a test light to verify. I checked the fuses under the dash, crank fuse is fine, ignition fuse is fine and I see no visible signs of one being blown... how do you check the inline fuses going down to the starter? looking at it just looks like a black piece of plastic is in a cylindrical form around the wire. no splits or ways to crack into it.
I though it could be the battery but I put it in the charger and it read 75% and like 14.5V went up to 80% and tried again. nothing same as above. put it back on the charger and now it read 100% and 15.7V whooa somethings not right re adjusted and the voltage dropped down to 13.4.
What am I missing????
I left the factory ground wires alone coming off the battery minus the one that went to the smog pump bracket. I just grounded that straight to the frame. The block is grounded from the rear of the passenger head as is was when I pulled the motor. The small braided wire that is not insulated that goes from the head to the firewall. maybe because the head is painted its not getting a good ground
?? I did not supply power to the alternator because I am not ready for that unless I need it wired up to fire; it is a one wire so shouldnt bother anything? also out of the ecm plug on the firewall there appears to be a orange/tan??? wire with two black/white wires going into a fitting that looks like it should be a ground. any ideas what that is?when I hook up the battery I did get one kind of click from the starter. not a full attempt to cranking. that one small click is all I could get, tried again and its silent. waited a few and it would do the click then stop again... I felt all the wires and none were getting hot and I didnt see/smell smoke so no short circuits, I hope. I tried to turn the lights on and nothing but the turn signals work? sure enough they blink and all. however there is not anything else, like the horn doesnt honk and again lights do not work. my dash is apart so if those lights are working I wouldnt know. the radio turns on but theres no sound.
so the cab is getting power somehow so my guess is the junction box is getting voltage but I do not have a volt meter nor a test light to verify. I checked the fuses under the dash, crank fuse is fine, ignition fuse is fine and I see no visible signs of one being blown... how do you check the inline fuses going down to the starter? looking at it just looks like a black piece of plastic is in a cylindrical form around the wire. no splits or ways to crack into it.
I though it could be the battery but I put it in the charger and it read 75% and like 14.5V went up to 80% and tried again. nothing same as above. put it back on the charger and now it read 100% and 15.7V whooa somethings not right re adjusted and the voltage dropped down to 13.4.
What am I missing????
