Bronica SQ-AM not firing

[Amylphoto]

I suspect you have old hardened grease that needs a CLA.

Ahh that's means I need to take it apart...yeah, I'll get my Dad onto that, Dad's sort everything lol

 

[mshchem]

Ahh that's means I need to take it apart...yeah, I'll get my Dad onto that, Dad's sort everything lol

People use fluid for cigarette lighters. In infinitesimal quantities. Even brand new stuff that sits for a decade will gum up.

 

[reddesert]

Before attempting to clean or lube things it would be good to attempt to isolate the problem. For example:
- what is the actual symptom, for ex does the shutter stick open and the aperture stay at the taking aperture, or does the shutter close again?
- can you tell whether it's the body or the lens that is causing the issue, by trying a different lens.
- was a meter prism used in auto exposure mode? If so does it work reliably in manual?
- is the 6V battery in the body absolutely fresh? The drain on this battery is highest when the shutter is open during exposure, so a long exposure might temporarily drain a weak battery.
- clean the electrical contacts between lens and body (perhaps not the problem, but easy).

You can test the shutter repeatedly using multi exposure mode and/or the roll of backing paper without film.