Receive the latest Hangar Talk postings daily. Your email address absolutely will not be provided to anyone.
10 Comments and 42 Responses
on Maintenance Topics
over Last Month
Post a Comment
Suction relief valve
Regarding the Pesco 3V-195 suction relief valve for the vacuum system: Is there an inlet and outlet on this device, or are the 3/8 pipe thread connections interchangeable? The connections don't sem to be marked. I'm thinking this is just a case where a needle valve allows more air from the screen to reduce the vacuum. If this isn't the case, does anyone know which connection goes to the vacuum pump and which goes to the instruments?
Pesco 3V-195 suction relief valve
oil leaking out trough generator
To all 190 owners with the continental W670-23,
I have oil leaking trough the generator when the airplane is at rest.
Does anyone have this problem, or the fix for it. Could use some help with this.
Thanks for the prompt replies guys- very much appreciated.
Yes, tried all those suggestions but the key to think about is-----
at cruise this random pulsing develops, not to any pattern and not as you might expect from a gear pump but random and the oil pressure tends to drop away a few psi. This all happens at 1800rpm and cruise pitch (mid range). Keep in mind the oil pressure is maintained by a gear pump with a classic relief valve associated and when reducing power without changing the pitch (engine revs) the oil pressure rises and ceases to pulse. ie reduced power produces original stable and constant oil pressure. Why is this only happening in cruise at mid pitch range?
fluctuating oil pressure
I fly a lycoming R680-13 which develops a fluctuating oil pressure when at cruise (1800rpm) 23 inches MP and once at cruise oil temp (140F) but which immediately goes away when I reduce power without altering revs. During the cruise the pressure also drops 5-10 psi from take off pressure but then returns to the original pressure when the power is reduced. Can anyone throw some light on the cause of this problem and , more importantly, advise a remedy?
Any advise would be most definitely appreciated.
just looking for some feedback on what STC's members have for Mogas operations with their Jake. Are there any better than others?
Mike Dalton VH-VLD
Taking wings off. Would like advice.
I need to take wings off a 195. Does anyone have experience and advice? Bolts are ready to be undone. Just wondering if someone else's advice and wisdom will assist. Thank you.
May 6, 2013
/ Last: May 8, 2013
Will be installing Radial Engines Spitfire ignition system next week on my W-670-23 Any pointers or experiences? Also appreciate tips on any method to seal out moisture from Battery distributor. Thanks, Bill Tergerson N9337A
It's about time to replace the headliner in my 195. My current headliner has three zippers for access to the important stuff in the cabin overhead, but the furthest aft one only allows access to the flap motor. I seems that one more zipper would be desirable to allow access to the aileron control cables as well. Your thoughts?
Also, any input as to the quality of the materials and workmanship of the headliners from the various suppliers would be appreciated.
2B20 propeller dimensions
Can someone check this out for me.
I have a prop that has a diameter of aprox 7' 10".
I think that makes it a -15.
Does any one have experience with the larger diameter -9 prop?
I have an L6 engine fitted, would I benefit from the larger prop?
Id like to get drawings for wheelpant attach fittings, or buy a set of fittings, or buy a set of wheelpants and fittings. Thanks, Don Hedeman