I was given a Sankyo P-1600 Super 8 projector off a friend. It had never been used when I got it and had been sitting in a garage for decades in its original packaging. When I first got it the lamp wouldn't light, and (as mentioned in another recent topic here) the resolution was to replace the ceramic lamp socket which had eroded, and now the lamp works.
Therefore, I was finally going to test it with a reel of film tonight but am having some issues:
The projector worked fine for threading the film and the supply reel was spinning as normal. However, once the film was on the take up reel this refused to spin automatically, resulting in me having to wind it by hand while the projector was running (in the hopes of running through the reel without having to cut it) but this only worked for a minute and then the entire film got stuck as the whole thing refused to spin and I ended up having to take off the hood, cut the film and force it out by lifting all the levers manually.
There is definitely something not spinning right inside and I have a suspicion that this might have to do with the rubber belt driving the wheels inside not being threaded right, but I have not been able to find any reference image of how this should look.
When I repaired the lamp socket I took of the rear hood on the projector and when doing so the rubber belt slipped slightly and I put it back the way I thought it had been. Then today after the film got stuck I thought that maybe this was done wrong as the rubber belt wasn't wound around the top left wheel before, so I put it there to try but the take up real still wouldn't spin. Then the projector started to make funny noises so I turned it off right away as I was afraid it might break in case something was jamming inside the machine.
I've attached images of the inside of the projector. Do you think the rubber belt should be threaded this way? Or could it be a cog/part acting up? The machine has no dirt and is well greased due to never having been used. The rubber in the belt seems to be in good nick, seems pretty fresh and not brittle but with normal elasticity.
I have a Eumig projector (in Sweden with my parents) and never had a reason to look inside it as it worked fine when I got it, that one is very easy to thread and this one also accepted the film fine until the take up real issue presented itself. I can't compare the two as I'm in Ireland.
I'll be running a Super 8 class next month so it's vital that I have a working projector for that, so any help would be much appreciated!! Even if someone had a picture of a similar projector motor it would be extremely helpful as I could compare the rubber belts.