Webster Build Questions and Progress

[minh-thanh]

I might be a little dense in this regard. But, is the arrow pointing toward the chuck on the lathe?

I was a little busy this morning.
So, Hello again
Don't worry about questions, all questions are welcome !!

 

[Danuzzo]

Finished the cylinder, at least I think so. Used 400 grit and 600 grit silicon carbide. Feels and looks very smooth. No mirror shine, but from what I understand, not required for the Webster (please correct me if wrong). Thanks to all that assisted me with my first lapping job. Could be done better; but, I wanted to leave well enough alone. I did finish the bore at .873". Here are some photos.

Now I am moving on to the crankshaft and flywheel. I plan on asking further questions on this part of the build in a separate thread.

Edit: I looked at the magnification of the attached pictures, and they don't look so good. If anyone thinks I should continue lapping, please feel free to say so.

 

[minh-thanh]

Finished the cylinder, at least I think so. Used 400 grit and 600 grit silicon carbide. Feels and looks very smooth. No mirror shine, but from what I understand, not required for the Webster (please correct me if wrong).

And it is not necessary for other engines, unless you are working with smaller sizes. No need for this engine, can do it with 2nd engine if you want - maybe...you will learn something
If the measurements are the same then : Great
Which lapping method did you use ?

 

[Danuzzo]

And it is not necessary for other engines, unless you are working with smaller sizes. No need for this engine, can do it with 2nd engine if you want - maybe...you will learn something
If the measurements are the same then : Great
Which lapping method did you use ?

Thank you. The measurements are allowing for a slight taper smaller at TDC. As I stated in an earlier post, it is difficult to measure with a telescoping gage. In any event, per my measurements, the taper is gradual from about .873" at BDC to 8727" at TDC. I think this may be a good thing.

I did use the lap similar to Adrian's website link above and that I photographed above shown in post #55. I modified it. In any event for my next ID lapping project, I will probably make a lap similar in design to the one Blondihacks made on her You tube channel.

 

[minh-thanh]

I did use the lap similar to Adrian's website link above and that I photographed above shown in post #55. I modified it.