flyrotary@lancaironline.net Mailing List Archive

Jim, I was surprised that when I inspected the belt there were no signs of slipping or heat produced by the slippage such as a glazed surface or cracks. I was using top of the line GATES belts which may have helped. I do intend to swap the set of belts out. There could be damage or deterioration that a visual inspection could not spot. Yes, if both belts had gone, then it would haven been either glider time (again) or cook the engine. Neither one desirable. I generally plan my flights from airport to airport to enhance the chances of having a reachable one should the need arise, but of course, can not always been within gliding distance. Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message ----- From: "Jim Sower" <canarder@frontiernet.net> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net> Sent: Wednesday, May 05, 2004 8:53 PM Subject: [FlyRotary] Re: Coolant Pressure Gauge > What did the belt look like after all that sliding across the alternator > pulley? Sounds like someone's lucky he didn't heat the belt until it broke and > really have a problem. > > Ed Anderson wrote: > > > Actually, Mark, I did not notice any variance in the cooling system from > > the normal. I just checked my flight log for that trip and at cruise my oil > > and coolant ranged from 160-170F which is normal. I too would have thought > > that as loose as the belts were (I could easily turn the water pump against > > the belt friction by hand) that the water pump would have slowed down > > sufficiently to have elevated the coolant temp. But, it apparently did not. > > > > Perhaps another way of looking at it is in regards to the power needed to > > drive sufficient coolant, apparently not very much which corresponds well > > with the 1/3 - 1/2 HP of the EWPs. > > > > Ed > > . > > Ed Anderson > > RV-6A N494BW Rotary Powered > > Matthews, NC > > ----- Original Message ----- > > From: "Mark Steitle" <msteitle@mail.utexas.edu> > > To: "Rotary motors in aircraft" <flyrotary@lancaironline.net> > > Sent: Wednesday, May 05, 2004 8:57 AM > > Subject: [FlyRotary] Re: Coolant Pressure Gauge > > > > > Ed, > > > You reported a loose alternator/water pump belt(s) while on your way back > > > from SNF causing the alternator field breaker to trip. Did you notice any > > > changes in water pressure that could be associated with the loose > > > alternator belts? > > > > > > Mark S. > > > > > > > > > At 08:09 AM 5/5/2004 -0400, you wrote: > > > >Steve, > > > > > > > > I use a 0-30 psi fuel pressure sensor and gauge for my coolant > > pressure > > > >sensor and its still working fine after close to 300 hours. At one time > > > >(and they may still do) UMA offered a coolant (or water) pressure gauge > > so > > > >marked - they actually silk screened a new placard and placed it in the > > fuel > > > >gauge I purchased from them. So my fuel gauge actually says "Water > > > >Pressure" > > > > > > > > The coolant gauge gives you pressure information that you soon begin > > to > > > >correlate with your coolant temperature as well as OAT. You soon begin > > to > > > >notice when anything departs from the norm. Its simple another bit of > > > >information about your system which does nothing for you most of the time > > > >but provide that comfort level that things are nominal - but, can alert > > you > > > >to departures from the nominal which bear investigating. > > > > > > > > > > > >Ed > > > > > > > >Ed Anderson > > > >RV-6A N494BW Rotary Powered > > > >Matthews, NC > > > >----- Original Message ----- > > > >From: "Steve Brooks" <steve@tsisp.com> > > > >To: "Rotary motors in aircraft" <flyrotary@lancaironline.net> > > > >Sent: Wednesday, May 05, 2004 7:18 AM > > > >Subject: [FlyRotary] Re: Mystery of the leaking coolant > > > > > > > > > > > > > Yes, it does sound like a good idea. I've looked for a sender and > > gauge, > > > > > but haven't found any. Does anyone have a good source for these ? > > > > > > > > > > Steve Brooks > > > > > > > > > > -----Original Message----- > > > > > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On > > > > > Behalf Of Bill Dube > > > > > Sent: Tuesday, May 04, 2004 9:04 PM > > > > > To: Rotary motors in aircraft > > > > > Subject: [FlyRotary] Re: Mystery of the leaking coolant > > > > > > > > > > > > > > > > > > > > > > > > > > >With the overflow plugged it was probably building up some pretty > > good > > > > > >pressure, which I'm sure led to the failure of the pump seal. It is > > such > > > > > an > > > > > >odd thing to have happened, but I'm glad that my days of chasing the > > > >drips > > > > > >of coolant are over. I think that the hoses must be there to stay, > > since > > > > > >they didn't blow off. > > > > > > > > > > In "The Book" Tracy strongly suggests installing a coolant > > system > > > > > pressure gauge. It sounds like it might be a good suggestion, in light > > of > > > > > the trouble you had. > > > > > > > > > > > > > > > > > > > > >> Homepage: http://www.flyrotary.com/ > > > > > >> Archive: http://lancaironline.net/lists/flyrotary/List.html > > > > > > > > > > > > > > > >> Homepage: http://www.flyrotary.com/ > > > > > >> Archive: http://lancaironline.net/lists/flyrotary/List.html > > > > > > > > > > > > > > > > > > > > > >> Homepage: http://www.flyrotary.com/ > > > > >> Archive: http://lancaironline.net/lists/flyrotary/List.html > > > > > > > > > >> Homepage: http://www.flyrotary.com/ > > > >> Archive: http://lancaironline.net/lists/flyrotary/List.html > > > > >> Homepage: http://www.flyrotary.com/ > > >> Archive: http://lancaironline.net/lists/flyrotary/List.html > > -- > Jim Sower ... Destiny's Plaything > Crossville, TN; Chapter 5 > Long-EZ N83RT, Velocity N4095T > > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html