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John Cooper wrote: > In a message dated 3/21/01 9:09:46 PM Pacific Standard Time, > [EMAIL PROTECTED] writes: > > > I first pull the oil dipstick out it measures 6 quarts > > ... twist it > > closed, then remove it again to read and it reads 5 quarts > > The oil fill pipe enters the oil tank below the level of oil in the > tank. > This makes the fill pipe into a barometer. When you run the engine. The > fill > pipe gets a bubble of hot air in it. As the engine cools oil is pulled > up > into the pipe. When you open the cap, the level drops, but the stick > shows > the artificially high reading. > > Here's a test you could do, but it could be dangerous if you forget. > Fly the > plane. Land, tie it down, then loosen the fill cap so the pipe is > exposed to > the atmosphere. Go away for a couple of days. Do not forget the cap is > > loose and crank up the engine! When you return, you should get an > accurate > oil reading first time. > > John This could only happen if the breather pipe is plugged. Otherwise there is atmospheric pressure in the sump. Craig 2623H __________________________________________________ To unsubscribe from this list please send mailto:[EMAIL PROTECTED] ____________________________________________________________ T O P I C A -- Learn More. Surf Less. Newsletters, Tips and Discussions on Topics You Choose. http://www.topica.com/partner/tag01
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