Machining on the lathe - Piston re-dishing, Part 1

[@thomasclassicandmodern]

Great to see a how to on these!!
I know what the finished results look like as they are pretty regular job you do for us and always superb !! Thank you 👍👍

[@ACDodd]

Thanks Ross!

[@robakagyser2300]

I enjoyed watching this video. Interesting topic. Thank for the video
- Rob in Tennessee USA

[@ACDodd]

Thanks for the kind comment Rob.

[@StefanMiniCooper]

Interesting video👍really nice craftsmanship

[@dennisvaneck9406]

Great visual demonstration of the ovality of a piston. Thank you for that. Perhaps you could move the DRO to show the taper of the skirt.

[@disturbedrocks1996]

I love your accent!! Thanks for the video, bud!!

[@onepairofhands]

nice set up on holding the piston, and machining thereafter

[@Cobra427Veight]

I've machined 1000s of pistons in the 80s and 90s , below the oil ring land is cam ground or diamond turned, all the ring lands I've clocked have been round .

[@ACDodd]

Thanks for that input, it seems some are, and some aren’t when it comes to the A-series engines

[@AmrinderSingh-zx9hr]

Very Good Video.!
Please tell me,
Can I cut forged piston 6mm from the top.

[@ACDodd]

I can’t answer that because i don’t know what thickness crown you have, it is unlikely as 6mm is usually the thickness that they are originally made.

[@tarekessed3036]

Great 👍

[@alangiaconelli2919]

Im wondering if those rings are doing there own cutting

[@ACDodd]

No.

[@RyanBurisch]

Cool! Do you think this would be possible on a Myford ML7 - 84mm piston?

[@ACDodd]

Yes but you might struggle to get the radius in the corner on a smaller lathe.

[@jonstout9236]

Like the video. Are you not compromising combustion efficiency just expanding in a step fashion?

[@ACDodd]

Has not been reported back as an issue.

[@mugeldavid4607]

its difficult (nearly impossible) to clean the pistons after machining with the rings still in the grooves.

[@ACDodd]

Correct, the engine builder will be doing that before they are used.

[@opieshomeshop]

Not sure why they don't make aftermarket flat top pistons if raising compression is an issue.

[@ACDodd]

Raising compression is no problem, and they do make flat too pistons