Strange holes in OE Ducktail - Factory ?

RatBox · 10:39 PM

Anyone know if these holes are for any factory application piece ?

They are not normal as far as I know , but I have seen these on three differant OE ducktails , & out of three black 73-74 metal grills I have . One happens to have holes drilled all the way through in the spots that correspond to the holes shown on the pictured tail. It was from a 74 carrera that had holes in it's duck in the same spots....but nothing there (not even bolts) , when I acquired it with this grill (extra holes) installed and bolted down with it's standard 6 studs.

A grill does not need to be attached here as they are very well secured with the normal 6 studs. So there is no need for anyone to drill extra holes through a tail here and the grill in the aligned spots for through bolts (and it seems like a hassle to do ......drilling through the grill in this spot means drilling through 2 layers of metal....for no real benefit) .

That fact ...and seeing three OE ducks with these holes makes me wonder if there is not some application that has something hung/attached here ?

tof2.7 · 05-26-2012, 05:03 AM

Is'nt for the fixation of little plate fir protecting the carburator entry ?

I think have seen that in some car who have Pmo !

RatBox · 05-26-2012, 11:19 AM

Thx for the reply tof2.7 ,

Anyone have a photo of one of these PMO carb shields loose or installed (on a duck , plain decklid , or whale) ? I want to verify that is what the holes are for (but it seems logical ...as I cannot think of anything factory that would bolt in this spot).

I do not see anything like what you describe in this photo of a weber kit on their website (Nor on their website period).

RatBox · 11:58 AM

I'm wondering if this is what your actually refering to. Here is a photo of some rain / stone shields from an alloy decklid that is supposedly off a Factory ST , as you can see they do not attach there (of course someone could obviously bolt some thing similar using that spot for a fastener) :

PS - I have photos of similiar underside views of ducktails from a couple RSR's with rain shields.......they are not fastened on those tabs either , but just next to them as on the alloy ST lid posted above.

Plus , none of the Ducktails i've viewed with the holes in the two outside bottom tabs have any holes in the tail that would correspond to where someone would need to fasten the other ends of this type of shields. So unless it is a completely differant type of carb shield (like one piece for both cyl. bank inlets with a length spanning tab to tab , sideways, & not attached on the opposite side of grill opening)......I don't think so

911Freak · 05-26-2012, 11:54 AM

Did Porsche ever use the rain shield like the 912s had? They went the entire distance of the grill opening. I have one that came as an ad on to a early Carrera3.0 whale tail

tof2.7 · 05-26-2012, 12:09 PM

I have search and in a documentation they said the grille in 2.0, 2.2 and 2.4 some rear grill have three vertical rod and some five so we have this five hole in the ducktail !!!

a new road to search.

tof2.7 · 01:13 PM

I will search in some pict.

You're not alone

Don A. · 05-26-2012, 01:17 PM

AC condensor brackets for a 74 Carrera may be why those holes are drilled.......

Don

RatBox · 05-26-2012, 01:35 PM

Quote:

Originally Posted by Don A.

AC condensor brackets for a 74 Carrera may be why those holes are drilled.......

Don

Thx for the help, but it does not seem to be that.

Here is a Duck from a car with AC ...with the condenser installed :

Here is a Duck from a car with AC ...with the condenser removed :

RatBox · 05-26-2012, 02:33 PM

Quote:

Originally Posted by tof2.7

I have search and in a documentation they said the grille in 2.0, 2.2 and 2.4 some rear grill have three vertical rod and some five so we have this five hole in the ducktail !!!

a new road to search.

Well yes , I know that the 72-74 black metal grills (and I would assume the 70-71 silver versions) have spaces for bolts(studs ..their actually bolts) to be inserted in the ends of the vertical bars ...but they are inserted when the verticle bar is initially bent/wrapped around the grill mesh during the making of the grill.

I have never seen any 5 bar grils , either 70-71 silver or 72-74 black versions , with 10 studs vs. 6 (or 8 studs if only the bottom provisions were used). And as I mentioned to start , the grill I have that goes with a duck that had fasteners in that position. Has the spots in the bottom of the two applicable grill verticle bars drilled through - not bolts built in.

If anyone has seen a grill with more than 6 bolts built in (studs) - let us know. I would think I would have heard of it but ....

Lastly again , owners could do it on their own (drill these two spots - but why - it is not needed for just the grill itself. I would think it has to do with another piece other than the grill.