Haynes, Weber, Zenith Stromberg and SU Carburetor Manual (Haynes Manuals)

Haynes, Weber, Zenith Stromberg and SU Carburetor Manual (Haynes Manuals)
John Haynes | 1996-02-19 00:00:00 | Haynes Manuals, Inc. | 350 | Automotive

This series of comprehensive manuals gives the home mechanic an in-depth look at specific areas of auto repair.

Reviews
If you have Zenith-Strombergs and need info this book is ONLY good up to 1974, there are no carb or metering needle part numbers, or any reference numbers after 1974, it's not in this book, even though it was printed in 1995.
Reviews
This manual was OK. It had a lot of information, but it did not have enough specifics on each individual carburetor in the title.
Reviews
This book has some pretty good photos of the carbs and tells how to take them apart and put them back together but doesn't give a clue about how to tune them or list different size jets that are available or anything useful. There's not much information about how they work to help figure it out either. It's so hard to find any concrete information in this book that you'd think it was written by Nostradamus. I have a lot of experience tuning motorcycle carbs that helped me with my Weber but after I got the pilot jet and the main jet tuned as well as possible the mid-range was still off, it was too rich at slower speeds and too lean at faster speeds, and I couldn't find a way to adjust that.

In a book called The Dellorto Superperformance Tech Book there is a section that talks about adjusting the midrange mixture by drilling holes in the emulsion tube, more holes at the top enriches the mixture at full throttle and less holes at the bottom makes slow speeds leaner. That got me to thinking about adjusting the emulsion tube in my Weber.

After reading through the book several times I highlighted everything that I could find about the emulsion tube and put it all together and it doesn't really say this but by reading between the lines I figured out that the diameter of the upper half determines the mixture at slow speeds and the lower half determines the mixture at faster speeds. Weber only supplies 2 emulsion tubes, the F50 and F66, that are fat at the bottom and thin at the top which is just the opposite of what is needed. I turned down the bottom of the tube in a lathe and built up the upper part by coating it with solder but you'd never figure out how to do that just by reading this book.

That got it working pretty well and it runs much better than the stock carb on my Toyota truck.
Reviews
Just about any Weber carb is in this book, plus Zenith Strombergs and SU carburetors ... with four or five pages dedicated to each. In other words, a mile wide and an inch deep. But where else can you find this much information between two covers? Just a shame it's published on newsprint paper...

pj


Reviews
It's what he wanted, and he uses it.

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