To qualify about the sealed system. I am talking about the crankase and lubrication system which is the part of the engine being disussed isn't it?....Gurgling...aka oil.
Some people on here seem to just like arguing for the sake of it..!!
Miscellaneous wrote:@Shoestring Flyer yes I am in complete agreement. That's why @lobstaboy introducing open valves confused, since it is unrelated to sealed in this context. Seems he confused you too.
However I believe @oldbiggincfi was referring to crankcase and lubrication system in his request of an explanation of your statement.
lobstaboy wrote:I thought we were talking about the advice not to hand turn an engine that isn't going to be run for sometime? My point being that even if air can't get into the crankcase, it can still get into the combustion chambers, so we need to avoid scraping off the coating of oil on the walls of the cylinders.
lobstaboy wrote:OKk not an issue in engines that don't have steel bores.
lobstaboy wrote:Anyway since I don't currently fly a Rotax powered aeroplane this is all rather tangential for me, so I'll stop trying (and failing, apparently) to contribute to this thread.
cockney steve wrote:Misconceptions abound.....