According to Glenn :
"DoN. Nichols" wrote in message
[ ... ]
Not yet, but soon. There is a cylindrical sleeve already there. I
think it is supposed to rest on the bearing inner race on one end, and
one flange of the two that hold external grinding wheels on the other.
The manual with exploded parts diagram is now in the drop box. I scaned at
150 DPI enhanced text mode to keep it small so the B&W photos are not all
that wonderful.
Yep -- the photos are terrible (other than your direct scan of
the collet). -- but I think that I can make out what they are about.
These tradeoffs are necessary when file size is important.
The text and parts list is easily readable though. I added
a scan of the collett adapter with the dimensions roughed in. Should give
you all you need to make a servicable piece.
I believe that it will do for the task.
Thank you for this.
I think the exploded diagram will answer a lot of questions about how the
spindle and bearings go together.
Indeed so.
I would just have at it, and use the opportunity to clean the crud
out
of the bearings. It isn't all that tricky or hard; I've had zero
trouble.
O.K. -- Other than getting things fully back together with the
caps fully tightened. (Which I gather was a pre-existing condition. :-)
Perhaps there is some grit stuck between the inner race and the
spindle?
Yes, it was pre-existing, and I bet it was that way when Grandfather got
the unit. There is lots of dirt in the way at present.
O.K. You get yours back together properly, and then I will take
mine apart -- assuming that the manual does not turn out to say *don't*
in big bold letters. :-)
I think this manual was written before the lawsuit happy lawyers got
involved .. there really aren't many of the "warnings" you see in modern
manuals. Interestingly enough it does say to use only Dumore precision
balanced grinding wheels LOL
And also on page 2 is the all upper case:
"WARNING: DO NOT EXCEED WHEEL SPEED RECOMMENDATIONS."
(But no exclamation point at the end. :-)
The manual is obviously older than my grinder, because of the
lack of 3-pin power connectors. But it is obviously for the same
grinder, as the model number (first four digits of the serial number)
matches.
Not to hijack your converstion about MGs but I had a 69' MGB while I was
stationed in Germany in the early 70s'. A real kick in the pants over
there. It had the lever action shocks that you could top up with oil and
mine were getting a bit soft so I added some STP and it siffend it right up
That was a common treatment for autocross (gymkana)
competitions, where cornering was at a premium.
My shocks were leaking, and I was topping them up with Silicone
oil (Dow Corning No. 200, IIRC) until I got a replacement set from a
crashed MGA at the junkyard. They looked so nice that I figured that
they had just been installed, and he took it out for too much of a
high-speed trial, and lost it. None of the accumulated grunge which
were on the original shocks.
My car which followed the MGA was a BMW 2002. Now it is
something unimaginative -- a Mazda 3/4 ton pickup truck with 4WD to deal
with our snow and our steep driveway. :-)
I have a 63' Corvette that is a "project in waiting". I retire soon ..
may be retired now and don't know it yet And then the vette goes under
the microscope to be our fun car. I have an 87 Porsche that is my daily
driver and weekend toy but it just dosen't have the character of the MG or
the Vette Unfortunately the Vette is not a fuelie though I think they
were using a bosche injection system by the 60's.
Hmm ... I remember a friend who had a Vette (about 1970, IIRC)
just before the first fuel crisis here -- he said that it would pass
anything but a fuel station -- he sold it just in time. :-)
Anyway if there is anything else you need for info or pictures let me know.
I think that those will do the job for me. I already have them
printed out -- and the photos did not improve in the process. :-)
The added info in the .txt file will help as well. I am glad to
get confirmation that the spindle thread was originally 1/4-32.
Was there only the one "Chuck assembly" with a 1/8" bore? That
would appear to be the case, based on the parts list and drawing.
So -- the largest wheel really was a 2" one. I've got some
larger ones which I have adapted to the spindle which are still well
within their speed rating -- but perhaps the motor does not have the
horsepower to drive the larger wheels. I guess that I'll find out.
The design of the diamond holder is different than I had
expected -- but makes sense if you have to re-dress the wheel part-way
through the task.
I don't see the diamond holder listed in the parts list, nor in
the drawing.
Again -- many thanks,
DoN.
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