BarryB72

Any good reason this wire is spliced? I was going to replace just the insulation. Took the insulation off and now I think I need some more green wire. I hesitate to ask but on the off chance I'll get a "believe it or not" type of reply I thought I'd throw it out there.

Peterbuilt

Because it melted when it hit the manifold and Bubba had no green wire.

BarryB72

I just laughed. Not out loud, but still. That's good.

Alan 71

Hi B,
There were different configurations of connectors on the temperature sender as time went by…. 'pin'….'spade' for example.
It could have been spliced for a new female connector.
Also, being so close to the exhaust manifold the connector may have been damaged by heat.
Although I don't see it on your lead the wire was protected with a heat resistive sheath.
Regards,
Alan

The wire with sheath leaving the harness.

BarryB72

The original black connector crumbled in my fingers so it was pretty well cooked. I took the new one off before I took that picture to see if the black sheath would slide off. The original sheath was brittle and torn in a few places so I just more or less tore it off in pieces.

bmotojoe

Very nicely maintained engine compartment!
Please don't use the Home Depot variety of wire, it is just wrong. You want to use GXL wire. And for but connectors, use the solid non vinyl nickle plated type connector with shrink tube wrap. The black cloth covering is available through most vendors.
Brian

Griff2002

I had an intermittent bad signal that caused my temperature gauge to bounce all over the place. Turned out the wires inside the sheath were cracked and not making a good connection. It was necessary to splice in a new connector and my problem went away.

BarryB72

I'm going to order the wire, connector, and sheath kit from Willcox. Thanks everyone for your input

BarryB72

Is the green wire entirely covered by the sheath?
Mine was not but I dont know how much of the sheath had to be sacrificed when they spliced the wire.

The wire Wilcox sent was about 2 feet long with a 2 foot sheath so I have to make a decision where to cut.

Alan 71

H B,
On my 71 the sheath starts immediately as the temperature sender wire leaves the harness and ends at the connector.
I guess the fact that the wire is then under the spark plug wire shield helps protect the connector itself from the manifold's heat.
Regards,
Alan

BarryB72

My shield currently does not curve above the sending unit. Any 72's look like this?

Alan 71

Hi B,
I see various shields at that location including the one you posted.
I'm using the one in the picture I posted because that's what was on the engine originally.
Regards,
Alan