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Author Topic: B&Q projector drive belt rides up off pulley.
Cliff Poole
Posts: 1
From: Berkshire, UK
Registered: Nov 2018

 - posted November 25, 2018 01:04 PM      Profile for Cliff Poole   Email Cliff Poole   Send New Private Message       Edit/Delete Post 
I recently bought my first 16mm projector, a 1692 turquoise TQ3.

It is in excellent condition and has already had the worm gear replaced, appears to be a very tidy job. Oddly enough, the drive belt was missing, so I bought a replacement.

The new belt seems to fit well, and runs perfectly for a while. Sometimes when I switch the motor to run, the belt rides up onto the outer flange of the motor pulley, i.e. Out of its track, towards the motor.
To the naked eye, it looks like it is lined up correctly. Has anyone experienced anything similar, or have any suggestions why it could be happening ?.

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Paul Mason
Jedi Master Film Handler

Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013

 - posted December 22, 2018 03:23 PM      Profile for Paul Mason     Send New Private Message       Edit/Delete Post 
Hi Cliff,
Not happened to me. The motor shaft must be a degree or two out of alignment. It could be that the previous owner gave up and didn't replace the belt.


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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

 - posted December 23, 2018 03:25 AM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
I agree with Paul.
It's possible that the drive pulley needs re-siting.


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