Telescoping Gage Expectations

[tim81]

I have a lot of gas powered equipment around the house, so it made sense to get this tools now. With the lathe and mill can do the rebuilds if I don’t screwup. I know I will but will start with a cheap one first and then the 420cc when I am ready. Does anyone know by heart what is the bore of a 2 stroke 50cc engine usually?

 

[OTmachine]

Do you have 1 to 6 inch size O.D. Mics or Jo Blocks to set the bore gauge?

 

[wachuko]

If you're interested in doctoring up a cheap set (which does work, it's just time....), here's a quick video that will show you what the problems are, where the springs shoot out from, and how to get them back together again.

That was great! I need to do this to mine!! I was just using one yesterday and felt this...

 

[tim81]

Do you have 1 to 6 inch size O.D. Mics or Jo Blocks to set the bore gauge?

Have 0-4”mics so far. What is “Jo Blocks”?

 

[OTmachine]

Have 0-4”mics so far. What is “Jo Blocks”?

https://www.grainger.com/category/machining/precision-measuring-tools/inspection-calibration-tools-equipment/gauge-blocks-sets/rectangular-square-gauge-block-sets?brandName=STARRETT&filters=brandName

 

[tim81]

Hahahahaha
$721.64/ each
I will be eating beans the whole month if I buy that one.

 

[tim81]

I saw one using a micrometer to set the bore gauge on YouTube.

 

[OTmachine]

I paid about $100 for my used set, and I was just trying to say that you need some sort of standard to relay your measurements to the “Real World”. Mic’s work fine.

 

[tim81]

I paid about $100 for my used set, and I was just trying to say that you need some sort of standard to relay your measurements to the “Real World”. Mic’s work fine.

I was being funny I am happy I got the mill today. I will get them later too.

 

[OTmachine]

But, then again most everything is on computers and most parts people don’t have a clue about sizes.