FS. Feeler for M30 Head Stamped "71" #12500199
- Thread starter Koopman
- Start date
Measure thickness 1st
If it passes that test- time for a pressure test to look for cracks.
Don't ship skinny cracked heads around the country.
Fingers crossed!!
Good luck!
If it passes that test- time for a pressure test to look for cracks.
Don't ship skinny cracked heads around the country.
Fingers crossed!!
Good luck!
Thanks for the tips.
Don just helped guide me through the head thickness measurement exercise last week. As you can see in the image below, my head (on my running engine!) is at or slightly less than minimum thickness.
When Don checked mine he used his extra sensory finger tip gauge.
So what is the minimum ?
Also what is a new head Thickness?
Also what is a new head Thickness?
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129mm
Machine shops in NA discuss things in thousandths of an inch. If you talk millimeters they just stare.
Approximately 17,000 mechanoreceptors (receptors that respond to sensations of touch) reside in each human hand, with the majority clustered in your fingertips. Your fingertips' ridges, which make up the loops and whorls seen in your fingerprints, maximize surface area for increased touch sensitivity.
Approximately 17,000 mechanoreceptors (receptors that respond to sensations of touch) reside in each human hand, with the majority clustered in your fingertips. Your fingertips' ridges, which make up the loops and whorls seen in your fingerprints, maximize surface area for increased touch sensitivity.
Do you get the same stare when you mention mechanoreceptors to machine shops?
Sometimes you just need to "let the force be with you" and toss the instruments. I teach this all the time to all the new MD's who stare at monitor outputs and not patients.
If your caliper is of similar quality to mine, which it looks like, you can get to the right number if you just keep measuring it.
I missed the machinist's estate sale last month nearby, and I'm still kicking myself. Would be nice to find a quality micrometer set for a bargain.