70-72 Skylark - Firewall small dimple: engine/bottom/passenger side

Discussion in 'The Bench' started by austxsteve, Nov 17, 2018.

  1. austxsteve

    austxsteve Well-Known Member

    Quick question, on the firewall (engine side), passenger side, lower, there is a small indention...sorry I don't have a photo, but it's about an inch or so in size. I've had my motor out for a year and welded up where the heater box was... what is that dimple for? Trying to figure out if I can hammer it out and smooth it out.
     
  2. yachtsmanbill

    yachtsmanbill Well-Known Member

    If its OEM, it was probably done from a template before heading to the hole stamping plant. Probably wouldve been a hole location for an AC hose clamp mount or such. Look at a freshly blasted firewall and theres always a bunch of marks that were never used... ws
     
  3. hugger

    hugger Well-Known Member

    Sounds like dimple/clearance for the AC drain
     
  4. yachtsmanbill

    yachtsmanbill Well-Known Member

    Was that an AC car? The AC/non AC walls are different. "Usually" the condensate drain is a "duck bill" valve on the fiberglass plenum. They like to get plugged up with mouse and spider turds LOL... was that dimple from the factory or maybe "fitting" 1000lbs of motor on a hoist?

    If youre going for custom or for fast, if the wall's all flat, nows the time to fit a piece of 1/8 aluminum diamond plate against it and screw it down and have a total cover. "Engine turning" is cool too! Also easy to insulate from heat and soundproof. ws

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    Last edited: Nov 18, 2018
  5. austxsteve

    austxsteve Well-Known Member

    It is OEM, just gonna hammer it out and smooth it out. I went vintage air and welded up the old heater/ac openings. Love the diamond plate look. That's nice. That's everyone for the input. You guys are awesome!
     
    TrunkMonkey likes this.
  6. copperheadgs1

    copperheadgs1 copperheadgs1

    Does it even show enough to waste your time on it?
     
  7. TrunkMonkey

    TrunkMonkey Totally bananas

    It does not matter if it shows, he knows it is there. How can a man sleep at night with such a silent thing lurking under the hood in the garage?

    "Did you year that? " "That dent is likely up to no good." "Where's my hammer..."
     
    austxsteve likes this.

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