Quote:
Originally Posted by gr3yEX1
I drilled a hole through my firewall. I wish I could've saw this post beforehand I used another guy's post to run my power cable from engine bay to trunk =(. I couldn't get a grommet to coat the hole because our cars have double firewall one inside the interior and another going through the engine bay. So drilling through this took some extra muscle LOL. Is it safe to have no grommet there? Since I don't want to remove any wires and the time it took me to pull that wire from the very bottom where I drilled a hole can I just improvise and use something like duck tape to coat the hole? What kind of issues can I run into since there is no coating around the hole?
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no, its not safe to not have a grommet b/c the sharp edge of the hole will wear the coating off the wire and cause it to short out, or even cause a fire. the grommet keeps this from happening b/c it keeps the sharp edge from cutting into the wire coating. If you cant find a grommet to fit, find you local communications shop (like places that sells $ installs 2 way commercial radios, police radio's and lights and stuff) and talk to the install manager or the guys in the shop, they will normally have a grommet that will fit (i know I used to work at one, they should have like 10-20 diff types of grommets to fit all size holes and all thickness of firewalls)