[Verdoro 68]

I moved on to shopping for dial bore indicators. Most of the inexpensive ones geared toward engine building are .0005. I’m assuming I’d want .0001 for more accuracy and one that could do cam, main and rod bearings? I’ve also been reading about how the cheaper gauges can mar bearings. Is that a concern?

Of course, all this is making me wonder if I should have just started with plastigauge but I enjoy learning about these tools and how to use them. Wish I could take a few of mgarblik’s classes.

[Schurkey]

Originally Posted by Verdoro 68

I’ve also been reading about how the cheaper gauges can mar bearings. Is that a concern?

It is for me. Theoretically, you can pull the dial indicator apart, then replace the tension spring with a softer one. I've never done this. My machinist bought a cheap rod-bolt stretch gauge, then wanted a stiffer spring in his after using my ARP stretch gauge. I don't think he ever got around to that...he borrowed my ARP unit a few months ago.

Originally Posted by Verdoro 68

Wish I could take a few of mgarblik’s classes.

Maybe we can get him to post the syllabus, and the textbook name and ISBN. Who knows? Is the course available online, or via Zoom or some-such?

[mgarblik]

Not to hijack thread: I will start a new thread in about a month for anyone interested. It will highlight what our 1 year long course is about. I will post syllabus and some worksheets and class notes. I have never done anything like this on a forum, so have some patience. Thanks for the interest. Students over 55 years old who live in a multi-county area around Dayton Ohio can take the classes virtually for free with some lab fees. Class fills very fast. One of the areas best kept secrets. Sinclair College is a local tax supported state school. Next class starts August 23rd. It is filled with 5 on the waiting list.