Mark VII a start and a long ways to go..

Mike · Post by **Mike** » Tue Jun 27, 2023 9:56 pm

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

JPG · Post by **JPG** » Wed Jun 28, 2023 10:16 am

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.

Mike · Post by **Mike** » Wed Jun 28, 2023 4:31 pm

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!!

Mike · Post by **Mike** » Thu Jun 29, 2023 9:59 pm

Couple pics, one on completed headstock the other a different configuration for the carriage lock push button. Spring is different just an fyi

JPG · Post by **JPG** » Thu Jun 29, 2023 10:31 pm

"Try" treating those sick looking red plastic parts with JPW. No guarantee here.

The rest looks OHHHH SOOOO GOOOOD!

miken · Post by **miken** » Thu Jun 29, 2023 11:05 pm

Ditto what JPG said, looks great. Nice seeing the parts installed.
Mike -

thunderbirdbat · Post by **thunderbirdbat** » Thu Jun 29, 2023 11:31 pm

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.

Mike · Post by **Mike** » Fri Jun 30, 2023 12:55 pm

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

Mike · Post by **Mike** » Fri Jun 30, 2023 7:13 pm

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.

Mike · Post by **Mike** » Sat Jul 01, 2023 7:13 pm

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

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Mark VII a start and a long ways to go..

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