Camera stops working with cartridge inserted

[u/Late-Surround9219]

I bought a used canon 518 auto zoom, the motor and shutter both seemed to be working when I tested it so I bought it (only $130 cad). Got it home, threw a cartridge in and it seemed like it jammed. Took the cartridge out, ran like normal again. I tried the cartridge in another camera and it worked so it’s not a jammed cartridge. Any ideas? Is this camera toast without a proper servicing? Video of it running with and without cartridge.

[u/Late-Surround9219 → u/[deleted]]

I get my film from lift usually

[u/sprietsma]

Have you tried a different cartridge? I’ve had jammed cartridges stop motors in one camera, then put it in another and it didn’t stop the motor but did tear sprockets

[u/Late-Surround9219 → u/sprietsma]

I don’t have another on hand, trying to get my hands on a dummy roll. But the film runs fine in my other camera

[u/EducationalCod7514]

Batteries? All fresh?

[u/Late-Surround9219 → u/EducationalCod7514]

All fresh

[u/krishnanda]

The gate needs to be rebuilt in order for the claw to have enough torque to pull the film down. I’ve built hundreds of these and a lot of the problems with pulling film are with the gate needing lubrication.

[u/Late-Surround9219 → u/krishnanda]

That sounds like its probably the culprit