Engine Rebuilding options for S/C

[NLXTACY]

it's not the valve, it's the EGR pipe that gets so damn hot and is very close to the harness

so, to prevent melting of the harness and wire insulation, we wrapped the harness in heat resistant foil and zip-tied it away from the EGR pipe - not complicated to do

You're right. I wrote valve but I know I meant pipe. Read my mind dammit!

The new harness is coming next week so I will prewrap that section of the harness and of course extend the connector I will need to for the SC install.

 

[landtank]

what I find happening is the harness retainer in that spot brakes and allows the harness then to move up against the pipe. I usually use a zip tie and cinch it back up to the metal mount as a precaution.

 

[DSRTRDR]

really weird s*** happens when the harness melts (fortunately that wasn't on my truck) - someone should make a public service announcement about wrapping it and keeping it away from the EGR tube

 

[pkelly72]

Would it be possible to see a picture of this area, before and after the new harness goes in?

 

[NLXTACY]

Would it be possible to see a picture of this area, before and after the new harness goes in?

Sure. I still to wait a week for it to get it tho

 

[NLXTACY]

what I find happening is the harness retainer in that spot brakes and allows the harness then to move up against the pipe. I usually use a zip tie and cinch it back up to the metal mount as a precaution.

Copy that

 

[LandCruiserPhil]

I use the aluminum heat shield method. Protects and dissipates heat before it gets to the harness.

To protect the wiring you need to extend on a SC application I wrap it in 3M Glass cloth tape

 

[NLXTACY]

Thanks Phil, I will look into the 3M stuff. I have a bunch of this that I have that may be the same thing:
http://www.thermotec.com/products/14035-express-sleeves.html

Here is the 3M Glass Tape:

 

[LandCruiserPhil]

The sleeve looks like an excellent option for protecting the extended harness. We have the 3M tape on the shelf ...use what you know and have

The glass tape we use is 3M 69

 

[NLXTACY]

Wow, the harness came in. Wasn't expecting it til next week.

 

[NLXTACY]

Oh looky looky. What do I see here?!

 

[LandCruiserPhil]

Oh looky looky. What do I see here?!

Wiring screaming for a heat shield...Stop the heat before it get to the wiring

 

[NLXTACY]

Wiring screaming for a heat shield...Stop the heat before it get to the wiring

Thats what I was getting at. I don't think the stock wiring harness has that wrap on it. I *think* it was added by Mr. T

Could be wrong, either way I will add a few more layers to it.

EDIT: I'm wrong. Always came that way but it still fails. I will be wrapping! (BTW, this is NOT my motor)

 

[bjowett]

Have you ever considered building an external EGR system? On top of the benefits for the number six cylinder, one can place things in better locations. I have an old thread around here about how to do it, but the pics are probably long gone.

 

[pkelly72]

Wiring screaming for a heat shield...Stop the heat before it get to the wiring

Couldn't header wrap work too?

 

[NLXTACY]

Have you ever considered building an external EGR system? On top of the benefits for the number six cylinder, one can place things in better locations. I have an old thread around here about how to do it, but the pics are probably long gone.

Never heard of it. Link/pics or it didn't happen

 

[bjowett]

No pics in it anymore...

https://forum.ih8mud.com/80-series-tech/91523-1fz-external-egr-cooler.html

 

[Mikesta]

wow that harness isn't cheap! 82121-60343 - Over $500! Can't wait to see picks of the SC build!

 

[pkelly72]

Robbie did the HG and supercharger install. I should have known.

 

[NLXTACY]

Robbie did the HG and supercharger install. I should have known.

nice. I found my stash of heat wrap. I have plenty to work with