1964 Transistorized Ignition on Corvette. First one off the line??

[Paul J.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

I am hearing that the single master brake cylinder should be replaced to a dual cylinder for safey braking sakes. What do you think about that?

Matt

Matt, you're doing it again. You'll get more responses if you put this question in a separate thread. Anyway, the short answer is no.

Paul

[Matt L.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

Sorry about that. I realized I've been responding to the 64 Z-06 thread, but somehow my question was entered into this thread. My bad. I'll get the hang of this.
Matt

[Matt L.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

Matt -- here's a pic that shows the "lips". On the magnet (stationary pole) on the right, you can see daylight behind the screw (in other words, the magnet is perfectly cylindrical). On the left, the magnet material is raised on each side of the three retaining screws. This might have been to compensate for the effect of the proximity of the screw to the magnet force. Anyway, this change began sometime after 1969, going by the examples I have.

As for the wires, 2nd pic is of NOS pole pieces; notice the wires are joined together (siamesed) like a household electrical plug wire. There is a faint green stripe on one of the wires to indicate which connection goes into what socket on the plug. This was from the start of K66 production until (I'm guessing) the mid-70s, when GM service items switched to a separate green and white wire.

Notice the "lips" on the 2nd pic.



a


b

Wayne, Thanks for the pictures showing the distributor differences. Do you think that was an upgrade to the original, and does that hurt anything down the road if I ever plan on having it "judged"?
Thanks again for all the info on the Ti.

[Wayne M.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

.... Thanks for the pictures showing the distributor differences. Do you think that was an upgrade to the original, and does that hurt anything down the road if I ever plan on having it "judged" ? .....

Matt --- could have been just a replacement for a malfunctioning original stationary pole; I don't think the 2nd design would have been a noticeable "upgrade".

As far as eventual judging, they would probably notice the separate green and white wires (rather than the siamesed pair with pale green stripe on one wire only). And, by lifting the points adjust window, (with aid of a flashlight) you can see whether the magnet has lips, or not, by the visibility of the screw.

Points loss would be minor, probably not worth buying reproduction, or NOS.

[Matt L.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

Matt --- could have been just a replacement for a malfunctioning original stationary pole; I don't think the 2nd design would have been a noticeable "upgrade".

As far as eventual judging, they would probably notice the separate green and white wires (rather than the siamesed pair with pale green stripe on one wire only). And, by lifting the points adjust window, (with aid of a flashlight) you can see whether the magnet has lips, or not, by the visibility of the screw.

Points loss would be minor, probably not worth buying reproduction, or NOS.

Thanks a lot Wayne for the info. Have Merry Christmas.

[Clem Z.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

Matt -- here's a pic that shows the "lips". On the magnet (stationary pole) on the right, you can see daylight behind the screw (in other words, the magnet is perfectly cylindrical). On the left, the magnet material is raised on each side of the three retaining screws. This might have been to compensate for the effect of the proximity of the screw to the magnet force. Anyway, this change began sometime after 1969, going by the examples I have.

As for the wires, 2nd pic is of NOS pole pieces; notice the wires are joined together (siamesed) like a household electrical plug wire. There is a faint green stripe on one of the wires to indicate which connection goes into what socket on the plug. This was from the start of K66 production until (I'm guessing) the mid-70s, when GM service items switched to a separate green and white wire.

Notice the "lips" on the 2nd pic.



a


b

i bet GM went to the second design of the magnet for ease of assy at the factory because the first design works just as well electrically

[Kenneth J.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

Question about the K66 amplifier mounting. I have a 365 HP TI car built March 11, 1964. I have owned this car since Oct 1965 (2nd owner). The amplifer on my car has always been mounted on the front side of the radiator support in a vertical position. The latest NCRS judging manual lists two mounting positions. Early production, behind the radiator support on the inner fender well. Later production, on a "shelf" bracket on the front of the radiator support. The GM Assembly manual shows two mounting positions. (1) On a "shelf" bracket located on the front of the radiator support. (2) Vertically on the front side of the radiator support. I would like to hear if anyone has seen an 1964 TI amplifier mounted behind the radiator support on the inner fender well. I believe the "shelf" mounts were used for FI cars only (because of the air inlet) and the non FI cars mounted the amplifier where the FI air inlet opening would have been located. Attached are copies of both the latest NCRS 1963-1964 judging manual and the GM assembly manual.
1963-64 Judging Guide.jpg1964 Chevrolet Asm Instr.jpg

[Alan D.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

1964 March 23 L84 with TI mounted on the bracket, "View B"

I read the AIM, K66 sheet 2.00 as follows; View A for L76 cars;
View B for L84 cars and
C60 with L76 cars, it is unclear if the amp is mounted inside or outside (I think outside near grille)

As for the time frame the AIM date is 3-2-64 so we can only be sure of cars after that.
Also look at K66 sheet 2.00 the next sheet

[Michael H.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

1964 March 23 L84 with TI mounted on the bracket, "View B"

I read the AIM, K66 sheet 2.00 as follows; View A for L76 cars;
View B for L84 & C60 with L76 it is unclear if the amp is mounted inside or outside (I think outside)

As for the time frame the AIM date is 3-2-64 so we can only be sure of cars after that.
Also look at K66 sheet 2.00 the next sheet

Alan,

I don't think the mounting position of the amp was ever changed. I think it was always mounted on the front side of the core support for all option combinations.
The drawing in the 64 AIM is deceiving and makes it appear to be mounted on the back/radiator side of the core support.

The amp was mounted vertically on the front of the support for L76/365 HP cars.

It was mounted horizontally on a bracket for L84/375 HP cars.

Starting in March 1964, the option combination of L76, C60/AC and K66 transistor ignition was added. This new option also had the TI amp mounted on the horizontal bracket just like it was for cars with L84/FI.

The note at the bottom of the AIM page shows "redrawn & revised" and also "RPO L76 with C60 added" on the same 2 March date.

[Alan D.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

Yes, I agree with what Michael said!
Gone back to make my post a little clearer, sorry.

[Kenneth J.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

I agree with you both. I have submitted a request for change to the NCRS 1963/1964 judging manual revision team to change the judging manual to include what the GM assembly manual shows for mounting configuations. I have researched this topic and found one reference to the amplifier being mounted behind the radiator support on inner fender well. The Nolan Adams book referes to a mounting position behind the raditor support on inner fender well. I have never seen one mounted there. How many of the original 552 TI cars still exist? If you own one, please post some information regarding your car. i.e. VIN and options and mounting configuration. thanks

Alan,

I don't think the mounting position of the amp was ever changed. I think it was always mounted on the front side of the core support for all option combinations.
The drawing in the 64 AIM is deceiving and makes it appear to be mounted on the back/radiator side of the core support.

The amp was mounted vertically on the front of the support for L76/365 HP cars.

It was mounted horizontally on a bracket for L84/375 HP cars.

Starting in March 1964, the option combination of L76, C60/AC and K66 transistor ignition was added. This new option also had the TI amp mounted on the horizontal bracket just like it was for cars with L84/FI.

The note at the bottom of the AIM page shows "redrawn & revised" and also "RPO L76 with C60 added" on the same 2 March date.

[Matt L.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

I've got a very early Ti Fi car, vin # 8307. Build date of 01-06-1964 and mine is exactly as Michael described, front side of the radiator support on the passenger side, horizontally mounted.
I've never seen one mounted elsewhere in '64 either, though I have come across very, very few Ti cars either. I have done lots of research and have not found a car with a lower vin # than mine with Ti. Nolan stated in the book he believed the earliest off the line he could find was vin # 9,867. I've got all the original motor, injection, drivetrain components for this car. Except for the off road exhaust and alternator.

Alan,

I don't think the mounting position of the amp was ever changed. I think it was always mounted on the front side of the core support for all option combinations.
The drawing in the 64 AIM is deceiving and makes it appear to be mounted on the back/radiator side of the core support.

The amp was mounted vertically on the front of the support for L76/365 HP cars.

It was mounted horizontally on a bracket for L84/375 HP cars.

Starting in March 1964, the option combination of L76, C60/AC and K66 transistor ignition was added. This new option also had the TI amp mounted on the horizontal bracket just like it was for cars with L84/FI.

The note at the bottom of the AIM page shows "redrawn & revised" and also "RPO L76 with C60 added" on the same 2 March date.

[Wayne M.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

I've got a very early Ti Fi car, vin # 8307. Build date of 01-06-1964 and mine is exactly as Michael described, front side of the radiator support on the passenger side, horizontally mounted. ......

Matt --- did you mean to say driver side ? The '64 AIM only shows K66 harness on that side.

[Matt L.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

Wayne, On Fi cars, the Ti is located on the passenger side of the radiator housing in front of it. I beleive non Fi cars they are on the driver side front of housing.

Matt --- did you mean to say driver side ? The '64 AIM only shows K66 harness on that side.

[Alan D.]

Re: 1964 Transistorized Ignition on Corvette. First one off the line??

Things appear to be getting confused here due to terminology. So we have 4 possible locations for a 1964;
1 Driver side on outside of radiator support nearest to front grille.
2 Driver side on inside of radiator support engine side.
3 Passenger side on outside of radiator support nearest to front grille.
4 Passenger side on inside of radiator support nearest to front grille.

I interrupt Michael's comments as follows;
The amp was mounted vertically on the front of the support for L76/365 HP cars. 1
It was mounted horizontally on a bracket for L84/375 HP cars. 1
Starting in March 1964, the option combination of L76, C60/AC and K66 transistor ignition was added. This new option also had the TI amp mounted on the horizontal bracket just like it was for cars with L84/FI. 1

Is anyone saying a location different than 1 ???? If so please use these number locations in any new posts so we are all on the same page. Hope & Assume my descriptions are clearly understood.