Re: 1939 120 firewall grommet

Posted by 39SixSedanMan On 2011/3/23 7:41:09

I beg to differ with West's proposal; I think the largest is for the wire harness itself, the second largest for the jacketed ignition cable West refers to. The remaining are choices depending on whether there is an Overdrive Lockout cable to consider. The oil pressure and water temp lines are small. I placed the oil line to the far passenger side since it is on the passenger side of the engine and the water next to. This seemed to create the fewest crossings of wires and lines for an uncluttered appearance. Regarding the installation, yes, you'll need to make a radial from each hole toward the outer perimeter of the grommet (unless you wish to undo lines and push them through, but this is even impossible with the water line). In case you need to add holes, a steel hole punch will do the trick, but you must be careful as rubber is not the easiest thing to punch cleanly.

Good Luck,
Pat