Elmo ST800 replacement LEAD BALANCE WEIGHT

[Charles Titone]

Does anyone know where I can get a replacement for the large round cast lead/metal weight? I received a projector with the weight broken. Part circled in red in photo.

[Steve Klare]

Hi Charles,

That's a flywheel. Its job is to smooth the pulsating motion of the film from the claw at the gate so it can flow at a uniform speed over the sound head.

I don't see anything wrong with the one in the picture, is this a picture of the one that's broken?

[Maurice Leakey]

... I don't see anything wrong with the one in the picture, is this a picture of the one that's broken?

I've never known a flywheel to be broken. Perhaps Charles could explain further.

[Steve Klare]

Well, I suppose it is possible for one of these to literally become broken.

-I'd hate to image what the projector it was installed in would look like afterwards, but it's at least possible!

[Maurice Leakey]

I believe that this is not an actual picture of Charles' projector.
It does seem to be an original from Van Eck's website.
Elmo Sound ST-800 Magnetic – Spare Part Finder – Van Eck Video Services (van-eck.net)

[Steve Klare]

I saw "Elmo ST800 replacement LEAD" and I thought "Oh, NO! -another lost power cord!" (-bad one to lose, too...)

Then I saw "LEAD balancing" and I thought "It's a single phase circuit: it's automatically balanced!

Then I saw "weight", and I finally gave up and opened the thread.

(Besides, I'm pretty sure it's aluminum!)

[Xander van der Merwe]

I’ve just received an ST800 as part of a bulk film purchase and it is in excellent condition, except for no sound… time to take it the “repair shop”…. I have a GS1200 and a couple of ST1200s but this ST800 seems like a very nice projector. Sorry for the off topic comment.

[Steve Klare]

Very often the ones sitting around waiting for a new home build up oxides on the switches that the audio signals can't get past.

This often works, not always, but often enough:

https://8mmforum.film-tech.com/cgi-b...c;f=1;t=009425

[Xander van der Merwe]

Thanks Steve, I will certainly try that and report back.

[Charles Titone]

This is my broken flywheel. Help me find a new one. It is weirdly cracked all over even on the rim.

[Winbert Hutahaean]

This is my broken flywheel. Help me find a new one. It is weirdly cracked all over even on the rim.

I was reapiring a water faucet made of (kind like) steel recently. It was old. When I turned it left to get it loose, it broke like that. There were crackings everywhere and some parts became like chips and powdery.

So I believe there is a material that would be like that after years although it looks strong and heavy.

Just a thought.

Cheers,
Winbert

[Brian Fretwell]

A slightly bad casting can sometime take years to reveal its faults. That's why the ultrasonically test railway vehicle axles periodically to see if any potentially dangerous cracks start appearing.

[Maurice Leakey]

Charles

I have never seen such a disaster in an Elmo.

Certain spares are non existent for a projector that is probably now about 50 years old, although Van Eck in the Netherlands do manufacture some spare parts for Elmos.

I suggest you try and find a projector which is being sold for repairs or spares. But probably not cheap. Here is one here in the UK on eBay.

Vintage Elmo ST800 Super 8 Sound Projector Untested Spare & Repair #101 | eBay

[Jose Artiles]

theres a web page called todocoleccion is Spain where you can buy the part with others for a cheap price, try to register and contact the seller using a traslator if necessary. The flywheel he sells is from a st 600 but its the same part for the 800, heres is the link conjunto de piezas de recambio de proyector cin - Comprar Proyectores Antiguos en todocoleccion - 286240403

[Charles Titone]

Thanks for the link. Just to let everyone know I located all the parts I needed right here in North Carolina! I am changing out the ph163 plug for a standard iec connector, got the part from digikey. Belts were goo ebay supplied the belts for replacement. Keeping my fingers crossed it all comes together without any other problems.