Thank you so much for this video. We found a crack in the worm gear. So we are gonna order one and go ahead and order a new belt too because it was off of where it should be.
You're very welcome. BTW, those videos on replacing the worm gear don't discuss how to properly time the upper and lower sprocket so the film feeds properly after gear is replaced. I did make a video on doing that manually here: ua-cam.com/video/ilrn5polPMo/v-deo.html There's also a link in the comments to the 16mm Film Talk forum discussing that topic...lots of info on that site. Good luck!
I hate these worm gears on the Bell & Howell, and it was a kiss of death. I had a Bell & Howell Specialist a long time ago, so I replaced it with a Singer Glaflex 16 and that didn’t work, and then my Revere 16mm projector, and that was busted due to the brush motor failure, and finally ended up with my Kodak Pageant AV-126-TR, a much better 16mm sound projector and it runs perfectly.
Sorry, no, but there are several good videos on this topic on UA-cam. The procedure to replace the worm gear in the 1500 and 2500 series are all very similar.
Im trying to replace the worm gear on one of these that has the clutch assembly attached like on your projector. I cant find any videos on how to remove it to get to the set screw for the worm gear. Any advice?
Actually, there is no set screw that holds the worm gear on the shaft on a still- function machine (the ones with the clutch). The gear on those freewheels unless the clutch is engaged. They are kept from moving laterally with a circlip that goes around the shaft on both sides. I don't have a video to show you about that.
Hey Mike, I replaced my worm gear on my Bell and Howell 1580 and found two springs on my workbench. Can I send you a photo and perhaps you can tell me where you think they might go?
I just purchased from Larry Urbanski a Bell & Howell 1592 that has both 18 & 24 speeds. I'm starting to notice that the sound is sounding "wobbly" on playback, like the sound is not playing at a constant even smooth speed. It was fine just a day ago. Ill be reaching back out to Larry probably in a few days or so but wanted to see if anyone might have an idea on what can cause that kind of issue. It does not hapoen only on a particular film, but becoming consistant on no matter what film. Certainly very noticeable on parts that have music, like a warped vinyl record playing back. And where i had no issue with a particular film now have it with that same film.
Larry and his tech will help you troubleshoot this. In the meantime, do check that the film is snug where it goes around the sound drum. The sound flywheel (inside) maintains a constant film speed at this point, with two spring-loaded guide rollers (outside, top and bottom) maintaining a light pressure on the film around the sound drum. If the rollers stick, that can cause wow or flutter in your sound. Without film loaded, manually try moving the guides apart and up and down by hand to see if they are sticking; if you pull them apart, they should snap back together. I've had to clean/lube the pivot point inside to get them freed up if they stick. This is not easy to do, since the pivot is inside the sound housing and behind the flywheel. Work with Larry on this. Here's a link to illustrate where the sound drum and rollers are: drive.google.com/file/d/1BekulMNqzxB8ZvB6I6CdWwPRT90kqypU/view?usp=drive_link
@@Est1951 thank you for your response. I'll check that. I do know that Larry checked the projector and made sure it is maintained. He's great. And everything seems to be now running correctly, on the same films that started having the issues. I remember one of them had some bad sprockets which caused the automatic loop restore have to kick in. When I ran it again, the projector then handled that same section with no issues. Although I think the problem of the running of the film was from the beginning to end with the wobbly uneven speed when I first started having issues. I'll keep testing it, I still have some time with Larry's guarantee.
@@Est1951 do you still do the repair? I just acquired a 1580C. I haven't checked the worm gear yet but I just wanted to ask and see where you are located.
@@mcqproductions7803 I haven't repaired one of those worm gears for about a year. I have several in inventory awaiting repair if I ever get around to them. .. kind of lost interest I guess. I'm retired and living in Rancho Cordova California
I just acquired a B&H 535. Turning the switch and forward and reverse seem not to be working. Light works , which I thought would be what would not work. Am I missing a switch or something really simple.
Sorry but I've never worked on one of those models, although they're probably similar to the 1500 and 2500 series. If you can hear a small hum (motor) from inside the case when you turn the switch on, then it might be as simple as the belt slipped off. At least, take the back off the machine, turn it on and see if the electric motor is spinning. Otherwise you just have to get your voltmeter out and track down the problem.
I have a B&H 285 C Filmosound projector that is working well but quite noisy. I think it needs a worm gear. Is there any advice you could offer on replacement or other possible causes of noise that I should consider looking for?
I've never worked on that earlier Bell & Howell series, so I can't say. Looking at photos of that model, it's an entirely different design than the 500 thru 2500 models that my video relates to. Perhaps, you can browse some of the film forums and ask your question. Try 16mmFilmtalk.com
What memories I remember replacing the worm gears back in the late 70’s early 80’s ,just love those projectors ,great to see they are still alive.
Thank you so much for this video. We found a crack in the worm gear. So we are gonna order one and go ahead and order a new belt too because it was off of where it should be.
You're very welcome. BTW, those videos on replacing the worm gear don't discuss how to properly time the upper and lower sprocket so the film feeds properly after gear is replaced. I did make a video on doing that manually here: ua-cam.com/video/ilrn5polPMo/v-deo.html
There's also a link in the comments to the 16mm Film Talk forum discussing that topic...lots of info on that site. Good luck!
I hate these worm gears on the Bell & Howell, and it was a kiss of death. I had a Bell & Howell Specialist a long time ago, so I replaced it with a Singer Glaflex 16 and that didn’t work, and then my Revere 16mm projector, and that was busted due to the brush motor failure, and finally ended up with my Kodak Pageant AV-126-TR, a much better 16mm sound projector and it runs perfectly.
Do you have a video of a process of taking the parts out to get to the worm gear on a 1592 model?
Sorry, no, but there are several good videos on this topic on UA-cam. The procedure to replace the worm gear in the 1500 and 2500 series are all very similar.
Can you direct me how to replace ( take out and put back in ) the old worm gear with a new one ? thank you.
I'm sorry, that topic is just too complex to summarize in a comment. Look around on UA-cam, and you'll find a few decent videos about it. Good luck.
Im trying to replace the worm gear on one of these that has the clutch assembly attached like on your projector. I cant find any videos on how to remove it to get to the set screw for the worm gear. Any advice?
Actually, there is no set screw that holds the worm gear on the shaft on a still- function machine (the ones with the clutch). The gear on those freewheels unless the clutch is engaged. They are kept from moving laterally with a circlip that goes around the shaft on both sides. I don't have a video to show you about that.
@@Est1951 if you can make a video to show me ill venmo you 30 bucks. Im completely stuck until i get some help.
Hey Mike, I replaced my worm gear on my Bell and Howell 1580 and found two springs on my workbench. Can I send you a photo and perhaps you can tell me where you think they might go?
Send a photo of the springs to mp5802@gmail.com
I just purchased from Larry Urbanski a Bell & Howell 1592 that has both 18 & 24 speeds. I'm starting to notice that the sound is sounding "wobbly" on playback, like the sound is not playing at a constant even smooth speed. It was fine just a day ago. Ill be reaching back out to Larry probably in a few days or so but wanted to see if anyone might have an idea on what can cause that kind of issue. It does not hapoen only on a particular film, but becoming consistant on no matter what film. Certainly very noticeable on parts that have music, like a warped vinyl record playing back. And where i had no issue with a particular film now have it with that same film.
Larry and his tech will help you troubleshoot this. In the meantime, do check that the film is snug where it goes around the sound drum. The sound flywheel (inside) maintains a constant film speed at this point, with two spring-loaded guide rollers (outside, top and bottom) maintaining a light pressure on the film around the sound drum. If the rollers stick, that can cause wow or flutter in your sound.
Without film loaded, manually try moving the guides apart and up and down by hand to see if they are sticking; if you pull them apart, they should snap back together. I've had to clean/lube the pivot point inside to get them freed up if they stick. This is not easy to do, since the pivot is inside the sound housing and behind the flywheel. Work with Larry on this. Here's a link to illustrate where the sound drum and rollers are: drive.google.com/file/d/1BekulMNqzxB8ZvB6I6CdWwPRT90kqypU/view?usp=drive_link
@@Est1951 thank you for your response. I'll check that. I do know that Larry checked the projector and made sure it is maintained. He's great. And everything seems to be now running correctly, on the same films that started having the issues. I remember one of them had some bad sprockets which caused the automatic loop restore have to kick in. When I ran it again, the projector then handled that same section with no issues. Although I think the problem of the running of the film was from the beginning to end with the wobbly uneven speed when I first started having issues. I'll keep testing it, I still have some time with Larry's guarantee.
If the worm gear happens to be intact, is there a way to reinforce the existing one?
Nope, not that I've ever heard of
@@Est1951 do you still do the repair? I just acquired a 1580C. I haven't checked the worm gear yet but I just wanted to ask and see where you are located.
@@mcqproductions7803 I haven't repaired one of those worm gears for about a year. I have several in inventory awaiting repair if I ever get around to them. .. kind of lost interest I guess. I'm retired and living in Rancho Cordova California
@@Est1951 No problem I understand.
I just acquired a B&H 535. Turning the switch and forward and reverse seem not to be working. Light works , which I thought would be what would not work.
Am I missing a switch or something really simple.
Sorry but I've never worked on one of those models, although they're probably similar to the 1500 and 2500 series. If you can hear a small hum (motor) from inside the case when you turn the switch on, then it might be as simple as the belt slipped off. At least, take the back off the machine, turn it on and see if the electric motor is spinning. Otherwise you just have to get your voltmeter out and track down the problem.
I have a B&H 285 C Filmosound projector that is working well but quite noisy. I think it needs a worm gear. Is there any advice you could offer on replacement or other possible causes of noise that I should consider looking for?
It is very old. I will try to find out what year it was made.
I've never worked on that earlier Bell & Howell series, so I can't say. Looking at photos of that model, it's an entirely different design than the 500 thru 2500 models that my video relates to. Perhaps, you can browse some of the film forums and ask your question. Try 16mmFilmtalk.com
I wish I had never bought my 2592 used many years back ,as far as I know the worm is ok but that's because it's had little use.