dingle berry question

[charles=fla]

...refreshing a worn out engine, tighten bearings,re-lap valves, and new rings...got 2 yes, and 1 no...remove pistons, run a dingle berry brush type hone in cylinder..too rough up walls...machine shop sez...if you have ring groves, where piston sat for years, will make a grove in wall, and dingle berry will only deepen grove..so use a regular 3 stone hone...ques...should the dingle berry work????????????..thank s charles..)..

 

[azmodela]

The 'dingle berry' hone will break the glaze, which is necessary if you're installing new rings and have any hope of them seating in the future.

The dingle berry hone won't do much to deepen any existing grooves, but could if left in one place for long enough. You'd have to do it on purpose to make a difference in the groove.

 

[BRENT in 10-uh-C]

Realistically, this is an area that even if you are "pinching pennies" that is not a lot of cost for the benefit. If the engine is truly worn out, buy new pistons & rings and just have a local machine shop bore & hone the cylinders. Compression is one of the things that makes the difference between a good running engine and a sluggish one. Having rings that won't seal creates lack of compression. Also, no reason to have oval shaped cylinders creating a tinge of blue smoke as you are driving from blow-by.