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Author Topic: Bolex 15-8L not working
Maria Rodriguez
Junior
Posts: 5
From: Mayagüez, Puerto Rico
Registered: Aug 2019


 - posted August 18, 2019 05:24 PM      Profile for Maria Rodriguez   Email Maria Rodriguez   Send New Private Message       Edit/Delete Post 
I recently found a Bolex 18-5L projector in my parent's home and, since I was the one to operate it back in the day, plugged it in. I ran for a few seconds before stopping. The bulb never went on but I guess that's expected. I removed the fuse and the hair inside seems intact. I went ahead and took out the other cover and a small part that looks like a tiny propeller fell out. I don't know where that goes or if that's the reason it's not working. The three belts look great. I was so excited to watch our old family movies!!!

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Nantawat Kittiwarakul
Expert Film Handler

Posts: 245
From: Rajburana, Bangkok, Thailand
Registered: Aug 2017


 - posted August 18, 2019 08:01 PM      Profile for Nantawat Kittiwarakul   Email Nantawat Kittiwarakul   Send New Private Message       Edit/Delete Post 
First thing first, doesn't the motor run at all when switched on?

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Just a lone collector from a faraway land...

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Maurice Leakey
Film God

Posts: 5742
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted August 19, 2019 03:24 AM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
Maria
I assume you mean an 18-5L.
I don't know this projector, but the "tiny propeller" is the fan. But as Nantawat says, does the motor run at all?
http://www.bolexcollector.com/projectors/185l.html

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Maurice

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Maria Rodriguez
Junior
Posts: 5
From: Mayagüez, Puerto Rico
Registered: Aug 2019


 - posted August 19, 2019 11:45 AM      Profile for Maria Rodriguez   Email Maria Rodriguez   Send New Private Message       Edit/Delete Post 
The projector ran when I first plugged it in but a few seconds later stopped running and hasn't started back up again.

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Maurice Leakey
Film God

Posts: 5742
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted August 19, 2019 03:03 PM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
Some motors use a capacitor to initially give a "kick" for them to start.
It is possible that the capacitor is as old as the projector (from 1967) and has expired, hence its inability to start the motor.
Look for the capacitor and see if has leaked, or even possibly burst. This will indicate the need for a new capacitor.

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Maurice

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Nantawat Kittiwarakul
Expert Film Handler

Posts: 245
From: Rajburana, Bangkok, Thailand
Registered: Aug 2017


 - posted August 19, 2019 08:08 PM      Profile for Nantawat Kittiwarakul   Email Nantawat Kittiwarakul   Send New Private Message       Edit/Delete Post 
Maurice just pointed out an important spot [Big Grin] .
If the motor kinda "hums" when on - trying to spin but failed. It'll be more than likely leaked/failed capacitor as he pointed out.

Capacitor, in short, is used to give initial "spin" to the motor when first powered on. When aged up it will be less&less effective - to the point that it will not work at all.

But if the motor is totally silent when on. No humming/schreeching/whatever AT ALL. That could be something else too. [Roll Eyes]

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Just a lone collector from a faraway land...

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Maria Rodriguez
Junior
Posts: 5
From: Mayagüez, Puerto Rico
Registered: Aug 2019


 - posted August 20, 2019 07:09 AM      Profile for Maria Rodriguez   Email Maria Rodriguez   Send New Private Message       Edit/Delete Post 
The motor makes no noise at all, there is no vibration. In other words, dead. I believe it is hidden behind two screws which I am unable to undo. Where would the capacitor be?

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Maurice Leakey
Film God

Posts: 5742
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted August 20, 2019 11:02 AM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
Maria
See the attachment. Click on "18-5L (Before 1970)" and then scroll down to the pictures The capacitor is the large aluminium cylinder top right with the nut on top of it. You can select the one showing its insides and then click on it for an enlargement.
https://van-eck.net/itable.php?lang=en&size=0&cat=film&merk=20&type=18-5 L Super (before 1970)

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Maurice

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Maria Rodriguez
Junior
Posts: 5
From: Mayagüez, Puerto Rico
Registered: Aug 2019


 - posted August 21, 2019 02:39 PM      Profile for Maria Rodriguez   Email Maria Rodriguez   Send New Private Message       Edit/Delete Post 
Thanks! The capacitor looks good. I replaced the fuse just in case. The problem persists. I am attaching a photo.
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Maurice Leakey
Film God

Posts: 5742
From: Bristol. United Kingdom
Registered: Oct 2007


 - posted August 21, 2019 03:08 PM      Profile for Maurice Leakey   Email Maurice Leakey   Send New Private Message       Edit/Delete Post 
I had a problem with a 16mm sound projector with the motor refusing to run. Its starting capacitor was replaced and it is now running perfectly.
I've just looked at the old capacitor and it looks quite perfect, no leakage or anything. So one can't be judged by just looking at it. Mine looks about the same size as yours, an aluminium cylinder with a nut on top, 45mm wide and 80mm long (not including the nut).
It's a 14 uF (micro farad). + or - 10%. 220 volt.
If there's no life at all in the motor then it's probably that the capacitor is at fault.

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Maurice

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Nantawat Kittiwarakul
Expert Film Handler

Posts: 245
From: Rajburana, Bangkok, Thailand
Registered: Aug 2017


 - posted August 21, 2019 07:20 PM      Profile for Nantawat Kittiwarakul   Email Nantawat Kittiwarakul   Send New Private Message       Edit/Delete Post 
If it's totally silent when switched on, I think it's time for a multimeter then. [Roll Eyes]

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Just a lone collector from a faraway land...

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Maria Rodriguez
Junior
Posts: 5
From: Mayagüez, Puerto Rico
Registered: Aug 2019


 - posted August 22, 2019 10:48 AM      Profile for Maria Rodriguez   Email Maria Rodriguez   Send New Private Message       Edit/Delete Post 
I have no access to a multimeter. About how much would a new capacitor cost?

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