engine bore sonic testing
Discussion
Have a couple of these at work, yes they are Chinese which is why we have two. But you can easily check the calibration on say a mounting lug on a block. The probe has to be radiused to work on a cylinder bore, which can be done with a small file as its enclosed in resin and your only filing the resin.
https://m.ebay.co.uk/itm/GM100-Digital-Ultrasonic-...
It’s only relevant if you know what minimum thickness you think is required.... That varies on opinion.
https://m.ebay.co.uk/itm/GM100-Digital-Ultrasonic-...
It’s only relevant if you know what minimum thickness you think is required.... That varies on opinion.
99hjhm said:
Have a couple of these at work, yes they are Chinese which is why we have two. But you can easily check the calibration on say a mounting lug on a block. The probe has to be radiused to work on a cylinder bore, which can be done with a small file as its enclosed in resin and your only filing the resin.
https://m.ebay.co.uk/itm/GM100-Digital-Ultrasonic-...
It’s only relevant if you know what minimum thickness you think is required.... That varies on opinion.
I was looking at those, might be an easy way to try, just need to take a good amount of readings per borehttps://m.ebay.co.uk/itm/GM100-Digital-Ultrasonic-...
It’s only relevant if you know what minimum thickness you think is required.... That varies on opinion.
What limits most bores is not the average thickness or even the local thickness but little inclusions in the casting which leave a dimple in the metal and will produce a pinhole in a the bore if you go too far. It's almost impossible to spot these no matter what you do. Most bores are safe to plus 3mm. Depends on the engine.
jason61c said:
Max_Torque said:
I suspect it will be cheaper to just buy a s/h block and section it up with a bandsaw (unless you have some sort of rare vintage engine of course?)
That would only tell me the thickness of the block I cut, also only where I cut.1) Ultrasonic testing is unlikely to provide sufficient resolution either, especially on curved and complex solids
2) Chances are the engines going to go bang at some point anyway if you're cutting things that fine
Max_Torque said:
indeed, but you can makes lots of cuts for little money, and if it's a reasonably modern block (say last 30 years) core shift is actually well controlled and so wall thicknesses will really not be very different. if you are talking about 0.5mm being the difference between success and failure then:
1) Ultrasonic testing is unlikely to provide sufficient resolution either, especially on curved and complex solids
2) Chances are the engines going to go bang at some point anyway if you're cutting things that fine
Its a 48 year old block1) Ultrasonic testing is unlikely to provide sufficient resolution either, especially on curved and complex solids
2) Chances are the engines going to go bang at some point anyway if you're cutting things that fine
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