8mm Forum: Need a wormgear replacement for a bell and howell filmosound 644

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Topic: Need a wormgear replacement for a bell and howell filmosound 644

Pablo Alvarez Roth
Expert Film Handler

Posts: 129
From: Chile
Registered: Aug 2006

posted August 25, 2007 08:57 PM

hello guys,

I was just given a bell and howell filmosound 644, but it came with a broken plastic worm gear.

were can I get one and how much would this gear cost?

thanks

pablo.

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Jean-Marc Toussaint
Film God

Posts: 2392
From: France
Registered: Oct 2004

posted August 26, 2007 01:41 AM

Pablo, you should contact Phil at Classic Home Cinema as I think he's got replacement for this part.

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The Grindcave Cinema Website

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Jeff Taylor
Film Handler

Posts: 70
From: Chatham, NJ
Registered: Aug 2005

posted August 29, 2007 09:47 AM

Frankly, the issue isn't so much finding a new gear (the new black ones are what you want--the original white ones crack), the problem is that the machine must be totally disassembled to replace the gear, and to do a proper job you need the Bell & Howell alignment jigs to get everything reassembled and timed properly. In the states this is around a $250 repair job, and few feel the machines are worth it with so many clean Eiki's and Elmo's going for far less.

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Jeff

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Mark Todd
Film God

Posts: 3846
From: UK
Registered: Aug 2003

posted September 01, 2007 10:02 AM

Isn`t there a problem with some of the black ones swelling with heat after about 30 mins and the grey ones are best.
Also a company in canada is making origional like ones with a better metal core and better quality and more depth and strength to the nylon.
Thats what an interesting chap in the know was telling me.
best Mark.

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Simon McConway
Phenomenal Film Handler

Posts: 1085
From: Doncaster, UK
Registered: Jun 2004

posted September 01, 2007 04:54 PM

Phil's worm gears are good; they are one solid piece of material, which in my experience, does not and cannot expand. Pretty good, once run-in. The changing, as has been said, is the complex bit. I have done quite a few of these, after being trained up by an ex-B & H engineer; some take only 2 hours to change, others take a day or more, if problems are run into. The whole mechanism must be reset and re-timed. And no, before you ask, I can't offer this service at the moment, but could recommend someone who could offer it. In the past of course, we relied on Hugh Bell at Sound & Screen Services in West Wickham (remember them?) but he sadly passed away in 2003. A lot has been said about worm gear changing here on the forum, but I wonder how many people who offer advice have actually worked on these machines? Not that many!

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