nobbylon
Veteran
Just to share my experiences really!
After the buyer pulled out of my M2 purchase I decided to sort out the slow speeds myself. Off came the top, rangefinder removed to get at, and remove the escapement and then I just cleaned it off with lighter fluid and relubed. Whilst I was at it I took the core out of the shell, more out of curiosity than anything else. I was surprised how easy it was to do. I didn't change any settings, ie the high speed settings or the 1/8th speed setting on the slow speed mech as I thought they would prob be set ok anyway. It all went back together as easy as it came apart. I made a couple of electronic speed testers, one for the speeds and just for fun, a combination speed and curtain speed tester. Also very easy to do.
I just adjusted the curtain tension springs until the speeds where about right. In reality this is quite simple. Set the opening curtain first so it clears the gate properly and then set the closing curtain according the readings taken. More tension equals faster speed.
I ended up comparing the timing graphs at all speeds with my M4 which was just serviced by Peter at CRR and they now look pretty similar.
I ran a test roll today and the results are great. Exposure times seem spot on.
Sorry for the long post, just wanted to share my efforts with the other DIYr's here, regards john
The pics are here
www.flickr.com/photos/nobbylon
After the buyer pulled out of my M2 purchase I decided to sort out the slow speeds myself. Off came the top, rangefinder removed to get at, and remove the escapement and then I just cleaned it off with lighter fluid and relubed. Whilst I was at it I took the core out of the shell, more out of curiosity than anything else. I was surprised how easy it was to do. I didn't change any settings, ie the high speed settings or the 1/8th speed setting on the slow speed mech as I thought they would prob be set ok anyway. It all went back together as easy as it came apart. I made a couple of electronic speed testers, one for the speeds and just for fun, a combination speed and curtain speed tester. Also very easy to do.
I just adjusted the curtain tension springs until the speeds where about right. In reality this is quite simple. Set the opening curtain first so it clears the gate properly and then set the closing curtain according the readings taken. More tension equals faster speed.
I ended up comparing the timing graphs at all speeds with my M4 which was just serviced by Peter at CRR and they now look pretty similar.
I ran a test roll today and the results are great. Exposure times seem spot on.
Sorry for the long post, just wanted to share my efforts with the other DIYr's here, regards john
The pics are here
www.flickr.com/photos/nobbylon
