Search found 6448 matches

by GlennW
Wed Apr 11, 2018 5:17 pm
Forum: General Discussion
Topic: DTI vs DI
Replies: 49
Views: 1250

Re: DTI vs DI

Since I was using mine today I figured I would add this. To eliminate some confusion when using a DTI that doesn't have constant clockwise rotation in a mill spindle: Just work with the point on the back side of a pin. DSC00890.JPG And work with the point on the front side of a bore. DSC00891.JPG Do...
by GlennW
Wed Apr 11, 2018 1:35 pm
Forum: I.C. Engines
Topic: The Packard V 8
Replies: 37
Views: 1306

Re: The Packard V 8

I thought Studebaker bought Packard while the big 3 were devastating the smaller companies. I was passing through a small central Florida town yesterday, and when passing by an old building that used to be a junk store that I had visited years ago. The owner passed away and it had since been sittin...
by GlennW
Thu Apr 05, 2018 7:36 pm
Forum: General Discussion
Topic: Valve Guide Material?
Replies: 21
Views: 2112

Re: Valve Guide Material?

A dingle berry hone won't do it, as it will not straighten the bore after the guide has been installed.

You need a rigid Sunnen type hone and a bore gauge to be able to see that the bore is not tapered, hour glass shaped, barrel shaped, or bell mouthed.
by GlennW
Wed Apr 04, 2018 7:17 am
Forum: General Discussion
Topic: Valve Guide Material?
Replies: 21
Views: 2112

Re: Valve Guide Material?

Knurling is nothing more than a poor repair. If bronze is the chosen material use Ampco 18 or Beryllium Copper and fit them into the head properly. Let them set over night and then hone the ID to the proper size so you have a round, straight bore with a proper finish. Proper fit and finish is a cont...
by GlennW
Mon Apr 02, 2018 6:02 pm
Forum: Lathes
Topic: Cross slide and compound dials
Replies: 14
Views: 473

Re: Cross slide and compound dials

As it stands now, one revolution of the dial advances the slide 0.125". If I make a dial with 100 divisions, then one revolution of the dial will advance the slide 0.100". Would that create a problem? What will happen is that one revolution of the dial will be 100 graduations, but it will still adv...
by GlennW
Mon Apr 02, 2018 3:56 pm
Forum: Lathes
Topic: Holding a chuck in a collet?
Replies: 16
Views: 441

Re: Holding a chuck in a collet?

Two Nations divided by a common language...
by GlennW
Sun Apr 01, 2018 7:29 pm
Forum: Lathes
Topic: manual for Jet 1024 lathe
Replies: 1
Views: 114

Re: manual for Jet 1024 lathe

I just emailed a copy to you.
by GlennW
Sun Apr 01, 2018 10:06 am
Forum: General Discussion
Topic: DTI vs DI
Replies: 49
Views: 1250

Re: DTI vs DI

The deal with the Interapid DTI popularity is that they are very well made, durable, reliable, and have far more travel than most DTI's. I wanted an Interapid and ended up with a SPI clone of an Interapid as it was some kind of an Enco deal where after all of the discounts and free shipping it was o...
by GlennW
Sat Mar 31, 2018 10:38 am
Forum: General Discussion
Topic: DTI vs DI
Replies: 49
Views: 1250

Re: DTI vs DI

For those who may use their DTI and turn it upside down as in indicating their tailstock, keep this in mind.
Sag.JPG
Sag1 (1).JPG
Sag2.JPG
The DTI itself is usually good, but the holding device is where it goes bad.

As rigid as a holding devise may seem, it probably isn't when inverted.
by GlennW
Fri Mar 30, 2018 4:59 pm
Forum: General Discussion
Topic: DTI vs DI
Replies: 49
Views: 1250

Re: DTI vs DI

It is possible that my spacial perception, usually excellent, fail totally when I am facing a DTI. I never know which way the dial indicated near or far. There a number of DTI's (B&S BesTest for one) that have Constant Clockwise Rotation of the needle regardless of which direction the probe is move...
by GlennW
Fri Mar 30, 2018 3:19 pm
Forum: General Discussion
Topic: DTI vs DI
Replies: 49
Views: 1250

Re: DTI vs DI

My coax indicator came with long tips that multiply the measurements by some wild numbers, much worse than big cosines. The indicator has to be much less accurate with long tips, but I've never thought it until today, because all I was looking for was a steady reading. I tried to explain that zero ...
by GlennW
Fri Mar 30, 2018 2:42 pm
Forum: Lathes
Topic: Holding a chuck in a collet?
Replies: 16
Views: 441

Re: Holding a chuck in a collet?

I'm not following either.

If all you have is a collet, how do you plan to turn a backplate that will be held in the collet?