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Author Topic: Vic 5 difference Richard Fowler Film God Posts: 2392 From: Ft. Lauderdale, FL, USA Registered: Jun 2001 posted 01-09-2004 10:14 AM                     There is no shutter box in a V-8 but two shutter gears which are not too tolerate to abuse. The oil site may be leaking due to age of the seal, which should be changed every few years. In replacing intermittents or shutter boxes with another on a V-5 I have had occaisional witness marks not line up to time the projector properly ( other than shifting the shutter blades to fine tune the timing ) which then involves creating a new witness mark(s) on the unit. So when removing belts on existing machines ( providing you had a perfectly timed image on the screen prior to belt change ) check to see if the existing witness marks match; if not then make a reference mark prior to belt change.  |  IP: Logged Tim Reed Better Projection Pays Posts: 5246 From: Northampton, PA Registered: Sep 1999 posted 01-09-2004 10:48 AM                       quote: which then involves creating a new witness mark(s) on the unit. check to see if the existing witness marks match; if not then make a reference mark prior to belt change. No, no, no! I have to respectfully disagree with you, Richard. Doing this only confuses matters down the road. If, when the marks are lined up in their proper positions, the shutter is out of time, that means that whoever installed that gearbox did not set it up properly. The fix is not to place another mark on the gear, but to TIME THE SHUTTER accordingly, so the marks DO line up. Thomas, the bearings are the next logical place to look. They can make a world of horrendous noise when they are worn. There's no reason you shouldn't be able to get those machines pretty quiet. Also, if the motor has a belt idler, check that one. And see that the belts aren't too tight. People have a tendency to install the projector belt too tight, to prevent it from skipping on start. If the keeper rollers are adjusted properly, however, that isn't necessary. Proper tension is when you can push the top left side of the installed belt no more than about 20mm towards the front of the projector. After a new belt becomes worn-in, though, you have to readjust the tension. Troubleshooting tip: if it's hard to locate a bad bearing, sometimes you can find it by squirting a little oil in them when it's running. When you get to the bad one, you will hear a change in the sound. Again... sometimes. It beats changing them out one by one.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-09-2004 11:06 AM                     The older Vic8's th (RK serries) had a steel on steel shutter drive that while noisy was far more robust the seal on the sight glass fails as we all know ruber and petrolium lubricants don't mix Often a noisy squeeling vic 5 is one of the idlers or one of the shaft ball bearings. Since you say sat for a long time in a hot humid enviroment that is a high probablity (also had many centurys get rust in bearings in that enviroment as well )  |  IP: Logged Tim Reed Better Projection Pays Posts: 5246 From: Northampton, PA Registered: Sep 1999 posted 01-09-2004 11:07 AM                       Vote for Gordon's new subtitle: "He's Robust!"  |  IP: Logged Richard Fowler Film God Posts: 2392 From: Ft. Lauderdale, FL, USA Registered: Jun 2001 posted 01-09-2004 12:07 PM                     I agree on the shutter timing issue which in ....almost all cases is the trick to do. Sometimes you have someone swapping out belts intermittents and boxes which would have a problem with the shutter.  |  IP: Logged Leo Enticknap Film God Posts: 7474 From: Loma Linda, CA Registered: Jul 2000 posted 01-09-2004 12:20 PM                        Ken writes: quote: Out of 9 Vic 5's I have one that is noisy.... nothing wrong with it it's just noisy...... it happens. Yup, I had one of those too. It was the cross box making the noise, which eventually got transplanted into another machine (can't remember why now). The noise moved to the other projector with the cross box. No other symptoms whatsoever: no oil leak, no abnormal picture wobble, no other obvious component causing any problems - it was just noisy.  |  IP: Logged

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