69 U69 Ignition Shielding

[Lawrence M.]

Re: 69 U69 Ignition Shielding



Here is a picture of 3 piece shield with the top removed. The screws that Terry described can be seen on the side. The screws hold the front piece on to the rear piece. Your box has the extra holes for the sheet metal screws on the passenger side, but it has been spot welded together.

[Lawrence M.]

Re: 69 U69 Ignition Shielding



Mark, this is the part number tag on a 3 piece service replacement. Is this the same part number of your 2 piece service replacement ?

[Mark D.]

Re: 69 U69 Ignition Shielding

Larry

I've had this forever so, any tag and/or box is long gone.

Mark

[Grahame M.]

Re: 69 U69 Ignition Shielding

Hi Guys,
I've just received my reproduction wires from lectric limited (4 days door to door, to Australia) and have my shielding off. Here's a couple of pics but i think it is a repro.

Cheers
Grahame

IMG_0379.jpgIMG_0381.jpgIMG_0385.jpgIMG_0386.jpg

[Floyd B.]

Re: 69 U69 Ignition Shielding

If you look on page U69/A6 (439) of the AIM, that part number is for the rear half of the three piece version. 3973609 is the front half and 3923972 is the part number for the top.

[Jeffrey S.]

Re: 69 U69 Ignition Shielding

Floyd,
Since your car was produced a few days before mine You should have the welded style. The box should be one piece, not held together with screws. I assume from the above discussion that the one screwed together is a 3 piece (front, back, and lid) and the 2 piece is a welded together box and lid. I will take a photo of my original and post it when I get back to Michigan.
Jeff

[Grahame M.]

Re: 69 U69 Ignition Shielding

Most parts on the corvette have some sort of identifying number or marking, should there be any on the shielding?

Cheers

[Floyd B.]

Re: 69 U69 Ignition Shielding

Floyd,
I assume from the above discussion that the one screwed together is a 3 piece (front, back, and lid) and the 2 piece is a welded together box and lid.

That is how I interpreted the conversation.

I will take a photo of my original and post it when I get back to Michigan.

Thanx. That would be very helpful. I am going to Spring Carlisle in a few weeks and will be searching for ignition shielding there.

-Floyd-

[Joe L.]

Re: 69 U69 Ignition Shielding

Most parts on the corvette have some sort of identifying number or marking, should there be any on the shielding?

Cheers

Grahame------


None whatsoever on these pieces.

[Kenneth H.]

Re: 69 U69 Ignition Shielding

Mark,

As I understand it, yours is a two piece shield since the base is welded together. For it to be a three piece shield there should be a top and a two piece base which is not welded together. The base is held together on the driver's side by the wing bolts which go through both front and rear base sections and then into the shield support, and on the passenger by the two phillips screws referenced earlier. The passenger side is then attached to the support with two wing bolts and lower phillips head screw.

Thanks.

[Kenneth H.]

Re: 69 U69 Ignition Shielding

Terry,

I'm certain that my shield is a reproduction, but as close as I look I can't see any evidence of spot welding. I'm sure it's there, I just can't see it. Also, I thought that the only reason for the phillips head screws was to hold the two pieces together. I thought that the wing bolts were used on the passenger side to mount the shielding. I could be wrong, since I've never see a three piece shield up close.

Edit: Oops, it's not that I could be wrong, it's that I was wrong. Although the TMJ doesn't show it, I just saw a diagram on the Keen Products site that shows the lower phillips head screw going through the two parts of the shielding and then into a predrilled hole on the lower part of the shielding support.

Thanks.

[Joe L.]

Re: 69 U69 Ignition Shielding

Joe,

I would very much appreciate that because it would verify which version I need.

Thanx,

-Floyd-

Floyd------


I checked the shield on my friend's car today. It is the spot-welded-together lower shield and not the type with two separate pieces fastened with the 2 philips head screws. As I mentioned previously, I was not aware of this type of spot-welded-together shield or, if I was, I'd forgotten about it.

The shield on my friend's car is unquestionably the original. Absolutely ZERO doubt about that.

[Joe L.]

Re: 69 U69 Ignition Shielding

All------


The "1 piece" lower box shield was, apparently, used for 1968 and early 1969. There were at least two part numbers for this shield but only one was ever available in SERVICE. That shield was GM #3934835. It was discontinued without supercession in July, 1981.

The "2 piece" lower box shield was GM #3973609, front, and GM #3973610, rear. The 3973609 was discontinued without supercession in December, 1981 and the 3973610 was discontinued without supercession in January, 1983.

[Terry M.]

Re: 69 U69 Ignition Shielding

Joe,

The 1968-69 TIM&JG says the style of ignition shielding changed from the 2-piece that is on your friend's car to the 3-piece that is on your car in mid-1969. I assUme that your friend's car is early in the production year. I know yours is an October 1969 car -- which is the later part of production. Unless someone wants to take on the task of more accurately defining the change points -- including separating large and small motor Corvettes -- we are at the right place in the TIM&JG

[Joe L.]

Re: 69 U69 Ignition Shielding

Joe,

The 1968-69 TIM&JG says the style of ignition shielding changed from the 2-piece that is on your friend's car to the 3-piece that is on your car in mid-1969. I assUme that your friend's car is early in the production year. I know yours is an October 1969 car -- which is the later part of production. Unless someone wants to take on the task of more accurately defining the change points -- including separating large and small motor Corvettes -- we are at the right place in the TIM&JG

Terry------


Somehow, I missed that in the JG. My friend's car was built in late October, 1968; mine was built in mid-September, 1969.