Looking for .0115 disk for fuel injection unit

[Peter L.]

I have a 61 283 /315 and I noticed that the FI unit has .0125 disk which I think is for 327. I am having a hard time finding the .0115 disk. Does anyone know where I can find them?
Thanks

[Joe R.]

Re: Looking for .0115 disk for fuel injection unit

Check with John DeGregory. He's the FI consultant. His number is listed in "The Restorer".

JR

[Don H.]

Re: Looking for .0115 disk for fuel injection unit

I'm not sure but I think you might have to buy a complete nozzle to get a disk. Good luck, Don H.

[John D.]

Re: Looking for .0115 disk for fuel injection unit

Nozzle discs aka orifices are not measured in thousands. They are measured in millimeters.
The nozzles were mostly made in old days by Detroit Diesel. Ever see a set of NOS nozzles for '57 to 65 in a small brown box with a part number on them? Made by Detroit Diesel. They also made a ton of them for RP. Then they were repackaged. Although RP made their own nozzles also.
Discs or orfices (same thing) are not available separately Peter. What nozzles are in your '61?
Be careful stabbing them with pin gauges. Easily ruined.
One think I learned an eon ago from Frank Scibica of RP. A set of 8 nozzles didn't necessarily have have the same orifice size. The screen, etc changes the flow characteristics according to Frank. He said and once you take a set of nozzles apart you have messed up the calibration. Therefore he said to clean the nozzles without taking them apart. I never argue. But I didn't agree with him at all as you cannot really clean nozzles unless you take them apart.
When taking them apart be very careful you don't loose the disc or orifice. Our fingers are not sensitive enough to feel them. Also keep your air gun way far away from from the discs. I would like to have the ones that are somewhere on the floor of my shop over the years.
They are magnetic though. Don't use strong chemicals to clean them either. Don't use vinegar either. I use lacquer thinner for the orifices.
Carb cleaner for the screens and brass parts. I also use Zep all purpose cleaner (green) in my ultrasonic cleaner. I have tall jars/beakers that I use for the nozzle parts. Screens in one jar, brass pieces in another jar. I used to put the discs in another jar but quit that as got in trouble. John