Mechanical refurbishment of Simson S51b

The carburetor retrofit kit included a new copper shaft for the float.







Yeah ... One solder came off with a minimal force. This could also cause a charging problem ...



The lighting coil was burnt to charcoal because a 55W bulb was placed in the headlamp instead of 35W ...



The terminal block hidden by the sealing tape is just icing on the cake :).



That would be the exhaust ... Did I say there was a little bit of oil everywhere? Here too.



That would be the inside. I understand that it is silencer, but it should not be so silent.



It didn't work out in a week ...



The rear lampshades were matte and even the bottom was melted because it was a 21W bulb instead of a 5W ...



More and more laughs. Should be slowly assembled ...



Old and new pipe shaft + spike.



The old stepping-stone had been refined by something of great skill. Maybe the drum should have been broken. Is not it?



The one on the left is new, though it looks worn, but it isn't. I think he was standing in a warehouse where he was served back and forth.



I used to smoke a lot because it's a waste product. Later I took it back and bought it from somewhere else.



Not very alike...



Comes to gear assembly. The balls have to be greased into the tube shaft, but they are guaranteed to drop 2-3 times for good.

This is a skill and patience game ...



New bearings ready for use.



I washed them all with a brake cleaner to be grease free because they will swim in oil anyway, but before that they get some heat ...



Unfortunately, the kick arm had an injury to the cast.



It had to be sanded to prevent it from getting stuck.



I lit it a little while looking at the temperature with a laser thermometer. 80-90C is enough for it



Here, too, the peasant saved the zigzag ring ...



The drum gear butt is cracked ... I replaced that too.



Don't forget this gear. Many people run down ...



One of the bearings was slightly overheated, so it became discolored ... However, it almost fell on the shaft due to thermal expansion.



There might be a paper seal that I applied on both sides with heat and oil resistant silicone adhesive.

The other half of the block was heated for approx. It slid to 100C and rolled into place without any effort.



Comes with the gearbox and clutch assembly.



Did I tell you that some bumblebee peasant could have fun in front of him? The drum clamp has been cleared ...



The picture shows the new and the old ... Well this could have caused an inaccurate change. I just don't understand why I had to?




There's also a piece of sidekick broken ... You haven't been able to break it lately, because the oxide layer is munching on it.



I polished it a bit because it was full of bumps and scratches.



The carburetor is in place.



This ring is the most hateful in the world. She likes to fall off ... It's worth connecting the two ends with a piece of wire...



Nice new parts lined up inside ...



It develops...



The clutch is on it as well. Here, too, the blades and plate springs had to be replaced because it was totally damaging and stuck.



The crankshaft gear was hard to put on. Finally, I changed my mother because she was quite injured in the thread ...



It was the boot...



I bought one instead.



The difference is spectacular.



The km clock is quite simply dusty and broken.



It is a little struck and worn. It had a broken bulb anyway. It's good that you always chewed the spiral ...



dismantled



Made of new index copper plate. It won't rot.




A little chronological error ...



The km clock spiral drive was worn out and had to be replaced as well.



There was so much oil in it. approx. one and a half times the standard ... It's good to be refilled if it leaks ...

I do not wonder that everything was floating in the oil.




It was reassembled in place of the engine. The frame received some paint against rust.










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