MTFCA Forum

I’m looking for a chart that lists the type of knock a motor is having and the chart will suggest whether the rods bearings need to be adjusted or whether the mains need to be adjusted, or maybe a bent or twisted conn rod. It’s been a while since the chart has been on the forum, I think, and I’m unable to find it through searching.
For instance, I’m having a slight tapping at about 25-30mph when there is no load on the motor. Speed up, slow down, or retard the spark a notch or two and the noise goes away. This noise just started after a one-day ride.
If you saved the chart could you please post it?

Bill

I think you're looking for this: https://www.mtfca.com/books/Course.htm

It is a worthy read, especially for those who are relatively new to the hobby

That is a very educational and informative link and I'm going to save it. But, that is not what I'm looking for. The chart that I've seen for the past 20 or so years is much more detailed and deals only with engine KNOCKs.

The Ford Service manual...a.k.a. the "black bible" does have, albeit relatively short and to the point, a section that talks about engine knocks, and their proposed remedies.

This old post includes a copy of a page from Dykes manual.
“Causes of Engine Knocks.”
https://www.mtfca.com/discus/messages/4 ... 1404141864

KBurket- THAT's it! Thanks.

Also try Pg. 244-245 in the Ford Service Manual