PaulRainbow
Well-known member
How does this work ?burnt seating
How does this work ?burnt seating
Not 100%, just that is the way we were told to stop. Opposite to start which was crank, drop no 1 then No 2. stop 2 first then 1. Followed by blessed silence!Are you sure about that? ISTR Listers have a stop lever on the side of the engine.
the valves are stopped from closing allowing the explosiveHow does this work ?
The age of the telling is not the same as the truth of what is told.It’s what I was told as an apprentice more than 60 years ago is enough for me and I ain’t arguing now
While the engine is running under normal conditions, where do the hot exhaust gasses go ?the valves are stopped from closing allowing the explosive
Not 100%, just that is the way we were told to stop. Opposite to start which was crank, drop no 1 then No 2. stop 2 first then 1. Followed by blessed silence!
Just thickos using the club's launches and following the instructions on how to make the horrible old dump truck engines work (without breaking your arm). (little bit like scottie believing what he was told as an apprentice) .Definitely not linked decompressors. Hold both up while cranking then drop 1. if it fires. drop 2. Better as a 2 person job, one cranking the other dropping. As it would run forever as long as it had fuel they would often be left running all day at busy times.Someone's been telling you stories! It makes no earthly difference which order you operate the decompressors. Multi-cylinder Listers I've used all had the levers linked anyway.
Details of the stop control have come back to me. It's on the side of the engine, the same lever gives you excess fuel/cold start.
Just thickos using the club's launches and following the instructions on how to make the horrible old dump truck engines work (without breaking your arm). (little bit like scottie believing what he was told as an apprentice) .Definitely not linked decompressors. Hold both up while cranking then drop 1. if it fires. drop 2. Better as a 2 person job, one cranking the other dropping. As it would run forever as long as it had fuel they would often be left running all day at busy times.
Much better now we have Yanmars and Betas except that you no longer have the waft of warm air keeping you warm on a winter Sunday morning doing rescue boat duties - not that I do such things now.
Not unusual for self taught instructors to give wrong instructions. I think you will find there was a way of shutting the fuel off but it was less accessible.The two cylinder air cooled Listers in our old club launches (going back 30 years) could only be stopped with the decompressors. Fail to see how it can cause valve damage.
The instructor was the time served club bosun whose job it was to keep all the club's then ancient equipment working. Expect the shut off lever was low down on the crankcase whereas the decompressors were accessed through a lift up lid on the top. Line of least resistance I suppose. Anyway don't recall them suffering from burnt out valves and they were still running when they were sold 20 odd years ago and replaced with Plymouth Pilots with Yanmars.Not unusual for self taught instructors to give wrong instructions. I think you will find there was a way of shutting the fuel off but it was less accessible.