.Doing some reading online I believe the Bushings have to be honed to fit the Shaft once they are installed..

  

Yes thats true. Luckily the housing I'm using has a pretty good bushing but I'll still be using the Pertronix.

Yes, the shop manual calls it "burnishing" to the proper size (whatever that is, they don't say, it's a secret I guess) suppose it just means held to a very close tolerance of the shaft diameter. Figured on getting the bushing on hand and then send it off to have a machine shop do it.

Good luck finding bushings, if you find a supplier let us know. They were available from Ford but they haven't had them for years now..

Huh, didn't know that. I saw a couple on that auction site and they wanted stupid money for them.

I'm no machinist but it can't be a major deal wouldn't think. Ream it out oversize and install a bushing or sleeve? Are the lower gears available? Those wear too and probably reach a level of backlash or slop too.

It was REALLY interesting to look at the scope patterns. Bearing tolerances generally are always very small numbers, and wear slowly but, once those limits are approached it accelerates and exceeds the limits very quickly. The patterns jiggled (is that a word?) in time with the lope of the idle. If I had to guess the distributor bushings wear in an egg shape.

The single helical drive gear will make the shaft rise and fall on the endplay of the shaft. Wear of the pinion and cam gear will add to this...... due to the helix angle, the shaft will rotate ever so slightly with the rise and fall. The whole system of parts participates and it will also effect the electronic triggers.

 
 Steve Metzger       Tucson, Arizona

Greetings to all:  I think the word burnish is nothing more than a $.50 word for polishing. When ever I have replaced a distributor bushing, it was always used with the original, but good, distributor shaft. Therefore "burnishing" was never necessary. I still have a couple new bushings and found a new Y-block truck distributor shaft - one with the governor feature. The diameter is same as a car distributor. Slipping the new bushing over the new shaft revealed a perfect fit with no detectable slop/wobble but slid over the shaft perfectly. The part number is B8Q-12120-A and for what it's worth, Rear Counter Parts shows 143 in stock with a "common" rating. Dennis Carpenter, McDonald Obsolete Parts and Mustang, Etc. are also listed as having these bushings. I didn't contact them to verify this. Just Googled the Ford part number.  FWIW, the bushing in the truck distributor with governor feature is of the oil-lite type. The NOS Ford bushings are steel, or some alloy of iron? If someone needs dimensions of a new bushing, let me know and I'll do my best to measure one. Hope this helps, JEFF.....................


64F100 57FAIRLANE500

They may fit fine before they are pressed in but likely will be a tighter fit once pressed in. I purchased a NOS original 60-64 Light Truck 292 Y-Block Distributor on Ebay on Wed .Autolite DA-647  in the Box. Not rebuilt but later brand new Ford  replacement Distributor with the Triangular shape Body below the Bowl. Surprised nobody beat Me to it. I don't need it right now but the way things look as far as getting replacements I thought it a good Idea to grab One while One is available.

  

"You" (as the kids say these days) "Suck!"

Gotta link? I looked for it a little while, couldn't find it. Just so I can get depressed and think what might have been.

Last night checked mechanical advance with a light, hooked the vacuum advance back up and took it for a highway spin. Seems to run better than ever. Think I can bump up the initial maybe a little bit from 10° or so and loosen the springs for a little more zip but it's pretty good right now.

I can't get a Link.Even using the Listing # won't show on Ebay. If You search ford 292 Distributor and look at the "Solds" its there. 4th or 5th Listing.