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Re: Mark VII a start and a long ways to go..
Posted: Tue Jun 27, 2023 9:56 pm
by Mike
lahola1- thanks for the suggestion will research some 13mm metric as well
jsburger- thanks and noted, I’m still trying to grasp some of the concepts/physics you mention
Re: Mark VII a start and a long ways to go..
Posted: Wed Jun 28, 2023 10:16 am
by JPG
Mike wrote: ↑Tue Jun 27, 2023 8:43 pm
I think I have it ass backwards- I opened up the control sheave by putting it on high, put belt on it while wide open, and then worked the belt around the motor pulley. I need to do some rethinking.
[/quote]
Half bas ackwards.
Open the control sheave(high speed).
Open the motor pulley (floating sheave) manually.
Slip the belt into the motor pulley, then work it around.
Re: Mark VII a start and a long ways to go..
Posted: Wed Jun 28, 2023 4:31 pm
by Mike
JPG-I don't know what to say but you got it all going on as far as this Mark VII. Ran it up and down, it all works, but did not check speed. I'm still a little gun shy with just the headstock running on my bench. Gonna get back at it. Thanks you!!
Re: Mark VII a start and a long ways to go..
Posted: Thu Jun 29, 2023 9:59 pm
by Mike
Couple pics, one on completed headstock the other a different configuration for the carriage lock push button. Spring is different just an fyi
Re: Mark VII a start and a long ways to go..
Posted: Thu Jun 29, 2023 10:31 pm
by JPG
"Try" treating those sick looking red plastic parts with JPW. No guarantee here.
The rest looks OHHHH SOOOO GOOOOD!
Re: Mark VII a start and a long ways to go..
Posted: Thu Jun 29, 2023 11:05 pm
by miken
Ditto what JPG said, looks great. Nice seeing the parts installed.
Mike -
Re: Mark VII a start and a long ways to go..
Posted: Thu Jun 29, 2023 11:31 pm
by thunderbirdbat
Try using a heat gun or hair drier on the plastic to see if it will help with restoring the color. Start with a little heat a distance away and gradually increase the heat but not to the point it starts to bubble or melt. Stadiums use heat to restore the color of the plastic seats and I have seen other people use it to help restore the color to other plastic items.
Re: Mark VII a start and a long ways to go..
Posted: Fri Jun 30, 2023 12:55 pm
by Mike
Lol, yeah the buttons are some kind of ugly, I’ve tried to polish with headlight cleaner, wd40, buffing compounds. will try the JPW and heat gun might be the ticket as well. I used something else on an earlier rehab that worked great but I don’t remember what it was.
Thanks for the compliments
Re: Mark VII a start and a long ways to go..
Posted: Fri Jun 30, 2023 7:13 pm
by Mike
Another ugly plastic part, they appear to be decomposing a bit. JPW not any help. Have a heat gun and will give it a shot, worse case I know a guy.
Pic of new adjusters. What’s cool about the Mark VII, and not happening on the Mark V, is it can be dialed in perpendicular to the machine top or table or whatever else you may need within reason. Full inch or so of adjustment. Sitting on a perfect 90 degrees with no weight. I know many don’t care but it makes me happy.
Re: Mark VII a start and a long ways to go..
Posted: Sat Jul 01, 2023 7:13 pm
by Mike
Where I am now and next pic will hopefully be completion
Parts still left to clean up (this part sucks)
Still need to find (1) access cover