Thats the one of the two I’d use. Actually, much overkill but shouldn’t harm anything except wallet.
MX-110: Creaking noise when turning the tuning knob
- Thread starter monkboughtlunch
- Start date
Thats the one of the two I’d use. Actually, much overkill but shouldn’t harm anything except wallet.
monkboughtlunch
Super Member
Would 3 in 1 oil be a better approach than grease?
No. 3 in 1 is a petroleum based material. Petroleum lubes frequently don’t get along with plastics. My rec remains the spray can silicone applied as already described. WD40 is petroleum based and evaporates so not permanent.
monkboughtlunch
Super Member
Hi Steve O - thanks! Just to clarify - when you used a toothpick, did you use a tube or a spray can of the silicone lube?
Rockon1
Well-Known Member
Sounds like the noise the string would make rubbing on something to me. Bob
Spray the “spraycan” silicone into a smaller and disposable glass or polypropylene container. Applicator tube can direct stuff into container. I use a used/clean prescription pill bottle. They’re usually PP. Do this in an open, well ventilated area: propellants and solvents are usually flammable and some smell bad. Let the resulting foamy liquid sit about 10 min in the container to allow the propellant and other volatiles to evaporate. Use the toothpick to pick up a drop of the remaining liquid and apply to bearing surface. It will usually flow to where needed. Use minimum nec to get job done. I use a Qtip to quickly absorb any excess on surface of pulley.
monkboughtlunch
Super Member
Thanks all! Solved this noise. I'm posting some pictures in case others have a similar issue in the future.
The problem was not the two white plastic pulleys on either side of the unit like I originally thought.
Instead, there are two small metal pulleys that are largely hidden from view. The ride underneath the pointer slide rail. Those two small metal pulleys only briefly emerge to be visible from the top when the tuning knob is either all the way left or all the way right. They just pop out a few millimeters. Once they were lubricated, the creaking noise went away.
There is a metal hook inside each of the two metal pulleys -- so it is a metal on metal grinding noise that is the culprit.
The problem was not the two white plastic pulleys on either side of the unit like I originally thought.
Instead, there are two small metal pulleys that are largely hidden from view. The ride underneath the pointer slide rail. Those two small metal pulleys only briefly emerge to be visible from the top when the tuning knob is either all the way left or all the way right. They just pop out a few millimeters. Once they were lubricated, the creaking noise went away.
There is a metal hook inside each of the two metal pulleys -- so it is a metal on metal grinding noise that is the culprit.
monkboughtlunch
Super Member
Now that the squeaky, creaking noise is fixed, there is one other issue I noticed.
The tuning flywheel has a slight wobble when the tuning knob is turned. However, if I push the tuning knob in towards the glass faceplate as I turn, the tuning wobble issue goes away.
I've posted some images of the flywheel assembly below.
Any ideas what causes this slight wobble? Does the flywheel / tuning knob shaft need to be lubed or tightened in some way?
Below shows the tuning shaft from the front, the inside and rear flywheel vantage points. Anyone encountered this issue before?
The tuning flywheel has a slight wobble when the tuning knob is turned. However, if I push the tuning knob in towards the glass faceplate as I turn, the tuning wobble issue goes away.
I've posted some images of the flywheel assembly below.
Any ideas what causes this slight wobble? Does the flywheel / tuning knob shaft need to be lubed or tightened in some way?
Below shows the tuning shaft from the front, the inside and rear flywheel vantage points. Anyone encountered this issue before?
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