The directions were clear and concise.  And now after about 15 minutes I have a working projector!  Thanks!!

I appreciate seeing which screws to loosen in order to disassemble (for various reasons). Thanks

Thanks for sharing. A friend gave me this projector today, and this is the problem!!

Great instructions!

great instructions .Your awsome

Great video. Borrowed same projector from a friend and the motor would run but nothing would move. Looks like it's the belt. Once it comes in the mail, I'll be back to watch this again!

Like your video
what screwdrier using Thanks

Thanx for your videos. Bought a B&H 256 in working order for $25 today at flea mkt. Few videos on them, trial and erred the back case off, learned to leave the 4 lower screws alone. Need counsel on lubing gears and motor.

Even after I replaced the belt on my Bell & Howell 456A, a few months later when I was ready to run a film reel, when I turn it on and set direction to forward, I noticed that the advance knob on the right is slow turning but when I roll it, it runs fine. What seemed to cause it? Update: I contacted the expert, and he said it was the clutch on the advance knob that is filled with dirt. How can I clean the clutch near the knob?

I am trying to repair a B&H 346A model with this problem. I'll post again if it works! Fingers crossed

why doesn.t the film feed all the way?  It starts feeding but then it backs up.

Great tutorial! Would you be able to do a tutorial on how to change the drive belt on a Bell & Howell Filmosonic 1731-1733 Super 8 sound projector? For the life of me I cannot figure out how to get the old belt off the pulleys.

I have a B&H 456A and replaced the rubber tire, and drive belt.  It works much better now... however the picture it gives is horrible.  I think something is missing like a shoe but not sure what parts are supposed to be there.  The picture is very washed out with white light around the picture.  I ran the same 8mm film on an older 1950's Regent 8mm projector and the picture is 10 times better with nice vibrant color.  Please help!  What is wrong with my B&H 456A?

I have an old Bell now projector and I'm trying to clean it up right now but it's got some kind of blue oil in the bottom of what is that and is it detrimental to it

is this belt the same as the B&H 471 projector?

Sorry if this is posted elsewhere, but what could be a reason why my Bell & Howell 456A projector suddenly won't run in reverse? The single frame advance knob spins, but the front reel head won't move. Thanks in advance.

Where can I purchase a drive belt for a Bell & Howell Projector?

What would cause it to not operate in reverse?

I have a 357 B -  I took it apart as you suggested and the belt looked good but there was a lot of gunk in the gears etc. so I cleaned things up and and it seems to be working great - until I put on a reel of film.  It feeds fine and catches and then it all stops turning.  One time it continued great going fwd as long as the film was not on the receiving spool and was going to the floor.  When I put it in reverse it struggled and just when I was about to give up, it started working and rewound properly onto the original spool.   If feel like I'm soooo close.  It's almost like the load of the film is too much for it to turn.  I started with a 7" reel and then a 3" with the same results....All the feeding spools seem to be turning fine and the film doesn't seem to be caught up in the feeding system.  I would very much appreciate your thoughts and suggestions...

Where did you get the new belt and what size is it?

My Bell & Howell 456A turns on and the light turns on, but the image projected is just a blob.  Is there a way of focusing the image, or anything you can suggest to address this problem?  thanks