CigarXO

Members -
To remove my C36 M104 cylinder head with intake and exhaust manifolds attached, I cut the signal wires to the two knock sending units and the oil level indicator because they were strung through the intake manifold in 3 places and I couldn't access them to disconnect and therefore couldn't remove cylinder head. I figured I'd re-wire them better than original with longer connections around the manifold upon reassembly -- and I'm an idiot who didn't know these were two strands for signal sender, but thought it was one 12 gauge or so.

Now I need insulated, 2 stranded wires to piece them back together. Its approx. 18-20gauge with a thick rubber wrapping. I'd prefer to not start stringing 6 separate wires.

I cannot find similar wire anywhere. AutoZone, HomeDepot, online ... Help

Thx - CigarXO

Super B

Can you post a picture of the wire you cut so we can compare? Some times a trip to the bone yard will land you some speciality wire.

CigarXO

Super B -
I'll try, but I doubt I get the resolution to see the copper strands in the two individual wrapped wires (lead and ground of 18-22gauge) inside the thick rubber liner - thicker than standard primary wire. The outside diameter is that of 10-12 gauge so I just assumed...

It is the yellow/black, purple/black, all black wires from the wiring harness strung across the top of the intake manifold, then branching each between a separate manifold tube to the knock sending units on the block and the oil level sending unit.

Good idea about the pick-n-pull.

Really surprised this isn't more accessible - common?

PS: This is a new/replaced wiring harness. I had the bio-degradable one replaced several years ago. I have found the knock wiring harness with sending units online but I don't need that expense. Another one of those PIAs holding up progress...





One of three sending unit wires bound to wiring harness across and then through intake manifold so that removing the manifold without removing the wiring harness was impossible. Unable to access the knock signal location or unscrew the oil level signal wire, I cut them with the intent of re-routing around manifold when reassembled. Now I cannot find heat resistant, 2x 18 gauge wire.





You can observe here the extra thick rubber wrapper around two wires - the larger the signal and the smaller the ground - going to the signal units. I don't want to string multiple small gauge wires around my engine.

CigarXO

Found some mobile equipment, rated, insulated 18-2 wire at a different HomeDepot outlet that I think will work.

This allowed me on re-assembly of my intake manifold as part of a head gasket job to run the wires around the manifold, not through different pipes. Now I don't need to remove the knock or oil level signal wires which are nearly impossible to access.