Reply To: ?????? Question Johnson QD-16

[tinkerman]

I thought the reed was a metal plate with a “flap” like to allow air in during combustion. I’m assuming the aluminum piece in 2nd pic is a different style? And the first pic… is it normal for the oil/grease to build up in this area? Without knowing and checking the measurement of the cylinder I don’t know if the low compression is due to that or worn rings or combination of both. Due to oversized pistons being non existant I’m assuming the only way to get the compression up would be to replace the rings. Again not wanting or needing a “like new” engine just one I can put on my boat and putt around in. As I stated when I pull the rope it’s obvious that the compression is low. Im sure compression has to be “reasonable” for the engine to start and run

It's a jungle out there.