Reply To: 1924 2hp BNL Johnson runs rough

[Monte NZ]

Thanks Stanley and Tom for your replies.

Stanley,I checked the exhaust an that seems ok. There isn’t any side play at all and no sign of oil coming up above the bearing,. I haven’t tried upping the oil gas ratio, but I did check the crankcase gaskets and there was sign of any leaks.

Tom, I remember watching a U tube on the Model A  and a chap mentioned that his wasn’t running well and he discovered like you, that the pistons were installed upside down in error, so to be on the safe side I had a look. Mine is ok……I took a photo  with my snake light to put my mind at rest! One thing I  did notice peering down the spark plug hole was that the top of the pistons , on both cylinders, directly under the spark plugs, appeared shiny with very small dents, as if it had been beaten with small hammer. …….I have provided a link for you to have a look.

https://photos.app.goo.gl/xfEhkcYNcjr8647B6

 

The more I think about it, I feel that it is an electrical problem, so I have ordered a  brand new condenser from our local  auto store.

I will let you know how I get on.

Thanks again for your suggestions.

Monte NZ