still-learning

Folks,

I am finally moving on this. I have just finished using POR15 on both my floor pans and man that stuff is the real deal. (On the other hand, the stains on my arms and knee look like they are going to stay around for a while.)

Anyways, the questions, I have multiple holes in my floor pans that are not designed for bolts. The two main ones are right in the middle of the part where your feet would sit. I have to guess they are drain holes but I can not find any plugs... Any ideas?

Also, does anybody have any recommendations and pictures of exactly what I should put heat insulation on? At this point I have the whole interior out so I am tempted to just do the whole damn car.

Thanks as always.

Tim M.

Edzred72

Yep... do the whole damn car with insulation, especially if you live in a warm climate. Insulation available from catalog vendors also, but some guys go to home improvement stores and purchase it there. You can get foil backed thin insulation real cheap there. Floor pan plug kits are available from Zip or other vendors for a moderate price. Around $8.00 (just bought mine for the 72)
Eddie

still-learning

Cool. I went to Zip's webpage and could not find anything for a '77 (drain plugs). I decided to use the power of the forum. :jester I posted to the Zip section.

We will see...

Tim M.

Geoff1340

Just re-did my 77 and got the plugs from Dr.Rebuild, insulation from HomeDepot and carpet from "?"...made a BIG difference in cab comfort....

Wrecked82

My floor pan drain plugs were missing - that was the source of my cabin smell and damp carpets at time after a heavy rain. I taped over the plugs from inside with duct tape and them smeared with silicone sealant from the outside. If I need to drain the interior, I will punch out. Drain plugs in the interior? What sort of nonsense is that. You are going to have to remove them if you have water inside, so why not do what I did and remove any worry that they may disappear like mine did.

still-learning

The drain plugs have always seemed kinda odd to me. There are also two in the seatbelt holes... Those are real small though. I am off to Dr. Rebuild's website to see if I see anything interesting.

Wrecked82

Yes - did those two smaller ones also.

BlueL36

Do a search of the archives. Lots of references and pictures to insulation.

MARKUS_P

Yes, the drain plug holes.......
Errrrr, one moment, do you have to drain anything from the inside of the car?
I don´t think that these are really drain plugs, it´s just like somebody said some time ago here at the forum:
The holes functioned as a guide for the assembling line or something like this.
GM needed them for the installation process.
And BTW if you there is any moisture building up at the floorpans you have to pull the carpet and the insulation anyway, otherwise it won´t dry up.
Juuuuuust my huuuuuumble opiiiiiiiinion ;)
Markus :seeya

Edzred72

Got mine from their catalog.....web page doesn't contain all what Zip carries, and lacks the detailed pics of parts and systems. Good Luck...
Eddie :cheers: :cheers:

NHvette

I agree with Markus - not meant for draining - but alignment jigs (perhaps).

Similarly, there are ?two? plugged holes under the rocker covers that were
used at the factory to align the body to the frame with holes in the frame
rails and rocker channels.

These plastic T-plugs should be available at hardware/home stores, but I
haven't looked for them - myself.

:seeya

still-learning

Now that I start to think about it... I am really tempted to do as stated and plug them. W/ as much insultation as I am planning on installing the water isn't going to be able to drain that way so it seems like a waste. Plus, :D I don't have to wait for parts.

Tim M.

glen242

If my adventures with my '57 'Vette and '64 Fitch Corvair were any indication, GM knew what they were doing by istalling drain plugs. Used them many times when my '57 was a daily driver. Leaked from some unknown spot under the dash. Why do you think they named them after boats?

Had a mushroom farm on the Corvair carpets. Dealer said leave it for a week, they leak in numerous places and are hard to find.

When you have 1/2" of water in the footwells, pulling the plugs is the easiest way to get it out.