Plug wire heat proyection

[kingsley coach]

Netters
I've put headers on my GMC and am wondering if 1" fiberglass sleeving rated
at 1200*F is adequate for my plug wires and assorted cables like the
speedo..

Thanks

Mike in NS

--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS

Life is too short to hold a grudge; slash some tires and call it even !

 

[robert mueller]

Mike,

I think this article will answer your query:

http://www.hotrod.com/articles/when-do-gas-exhaust-temperatures-become-cause-for-concern/

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of Kingsley Coach
Sent: Saturday, October 14, 2017 9:26 AM
To: gmclist
Subject: [GMCnet] Plug wire heat proyection

Netters
I've put headers on my GMC and am wondering if 1" fiberglass sleeving rated
at 1200*F is adequate for my plug wires and assorted cables like the
speedo..

Thanks

Mike in NS

 

[terry1]

The Taylor wires I put on there are not having a problem with heat from the headers, but they don't have a tendency to hang next to them when routed
correctly. IIRC, they have the 135 degree boots on the plug ends. The P.O. put some of that sleeving on the speedo cable, though, and I guess that's
why that still works forty years after manufacturing, because that is a hot spot that can't be avoided by re-routing. It appears to be the 1 inch size
and was just loose on the cable when I got the coach. I think I tie-strapped it up a little ways to keep it more in the heated area instead of falling
down to the tranny. If I had been the original installer I would have used a longer piece of insulation on the cable all the way to the cruise
control.
--
Terry Kelpien

ASE Master Technician

73 Glacier 260

Smithfield, Va.