Re: 1950 Wizard fuel mix

[Casey Lynn]

quote firstresponder01:

Yes sir pappy. Thanks for telling me about this forum. Lots of great info. Have been doing a bunch of good reading. I did see that comment from Frank. I have to agree from comments on this post to alot of other readings I have found, it is really user descrestion almost.

As I mentioned in the other forum, oil is cheap in comparison to locating, purchasing, and installing a "new" vintage powerhead because of damage from a marginal oil ratio.
On these forums you will be able to easily search oil quantity debates ……. Common "knowledge" if you want to call it that.
You will be able to search jeweled vs. non jeweled engines pretty easily as well……….again, common knowledge.

But in almost all cases that’s where the so-called "knowledge" stops.

What you will not be able to search out is the fact that materials these rotating parts were made of (way back when) changed as the oil ratio went down to an industry standard of 50:1. It wasn’t a kind of "Aw Hell, Vern, we coulda’ been runnin’ half as much oil all this time" evolution around the halls of the various engineering departments of the engine builders.
From silver coatings in the rod and wrist pin bearing cages to a vast array of material make up differences in the pistons to minimize scuffing, engines and engineering had to evolve to the point where engines would live with leaner oil mixtures. Try to find references on these differences……….
Pistons alone changed materials, ring material, ring shape, ring thickness, ring height, # of rings, ring design (keystone, semi-keystone,pressure backed, etc) piston dome shape, wrist pin location (to minimize thrust loads) etc. more times than I can remember.
Our antique and vintage fleet of engines were in the Flintstone era, material-wise, and are at a distinct disadvantage when forced to run with a leaner oil mixture.
Choose wisely!