My 16CL has started to sound "rattly". Here's a pic of where the noise seems to be coming from.


Also, the gearing looks to have no grease left!


Here's a video clearly showing the rattling https://youtu.be/e3p88wYPw78

This happens in FORWARD only, reverse is quiet as a mouse.

The shutterblades not touching anything? Kinda looked wobbly

Hard to see if they are, but wouldn't they also make that noise in reverse?

Is the steadiness of the picture being affected?

No Robert, picture is steady. It runs fine it's just noisy!

#3

No not necessarily Stuart. There are plenty of 8mm projectors which through the forces of the fan, can have some slight axial movement or thrust in either direction depending on forwards or reverse projection selected.

Usually collars on the shaft or something similar, restrict the amount of movement of the shaft.
This is especially the case if a machine uses sleeve bearings as opposed to ball bearings.

Even when belt driven, the shaft can "float" a little in the above arrangements.

I don't know of the shutter shaft arrangement or set up on these machines to know whether or not it COULD be a possibility on this machine, but for some, for sure it's possible Stuart.

It is certainly a possibility for your T610, that much I do know.

I've managed to find the service manual, I'm going to have to get down and dirty over the next few nights. These machines are so bloody compact I think i'm going to have to really strip it down :/

Hmm the more I listen the more I'm convinced it's coming from the fan.

I always assume anything is possible Stuart until it is ruled out by proving or dismissing the theory.

If a projector has an inching knob, the end float issues can be proved or dismissed very easily by pushing or prying on the inching knob in run.

Stuart,

For whatever the reason, I have only just be able to watch your video that you uploaded onto you tube. It does sound like the shutter blades are catching somewhere and could even be at the bottom where you begin photographing here. There is a lot of excess axial movement in them equally I noticed.

Have you tried slipping the belt off the Shutter Wheel pulley and then turned over the shutter wheel Shaft by hand very slowly just to see whether or not this is a possibility or not?
Obviously, have no power cord connected to the machine while you are attempting this if you do.
Sorry, but always wise to add a disclaimer.

You could slip the belt off at either Pulley, Motor or Shutter Wheel, it wouldn't make any difference just for the purpose of this experimental exercise.


I wouldn't be tempted to run it for any longer than is absolutely necessary until you can turn the shutter wheel shaft and it remains silent throughout 360 degrees.
There should be no real noise emulating from this shaft when all is good and it may do damage to vital components in the meantime to run it as it currently stands.