Help with Large Firewall Grommet in '35-'35's

[flathead34]

I need some help and advise from you experts. I finally got the large firewall grommet installed in our '35, not a fun job. Put the temp. sender wire through it first. We did not figure we could get the sender in after the main wiring harness is ran through it. Started the new wire harness in, but getting the "fat" portion through is where we are having great difficulity. It does not seem to want to go. What are the tricks you guys use to get this portion of the main harness through the grommet? Any advice is greatly appreciated. Then, still have to get the wiper vacuum hose through the grommet or should we put the hose in before the harness? Thanks and Happy v-8ing. Mike

[Dec211975]

I would use some electrician's soap used to pull wires in conduit; wear gloves it is slimy, when it dries it will turn in to a white powder you can blow most of it off with compressed air. Brian

[ford38v8]

I had the same problem, as I assume most have. My solution to save the harness from damage and my temper from flaring was to cut the grommet, install the harness, tube, and sender, then work the grommet lips through the firewall hole. The slit in the grommet facing down, is not noticable at all.

[35 coupe]

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I did mine last winter,put everything through grommet first, had grommet inside car. then got a piece of pvc pipe about 3 '' long fed wires, sending unit, vaacuum hose thru it from outside, fed pipe thru hole to inside and tucked the outer lip of the grommet into the pipe and pushed it thru the hole in firewall. you have to roll the outer lip of grommet forward to stuff it into pipe. I went thru firewall insulation and firewall with not much problem