Grandmas Flying Couch

I know you posted this a long time ago, but I need to tell you, this stuff has changed my life! What used to take 45 min with simple green aviation and rags, now if spray and wipe with blue shop towel. That easy! I have been using it alot without the fear of corrosion (like you have with simple green avaition, you have to make sure its all gone). I bought this exact brand and flavor, they updated the can. Thanks again!

What scoop? I changed the air filter and noticed the scoop was gone! Scoop was never in the logs to begin with. Also the air filter stays cleaner longer now, the scoop was ramming all the dirt into the filter. Also was probably pretty draggy, have not notice a difference in speed 140kts at 2,000' at 24 squared. which is book values should net 150kts up high, still mostly practicing for check ride have been up to 11000' but didn't check TAS.

I’m going to do this first thanks! I tried running boost at ICO and pressure leaks down after you turn pump off

I check to see that it was hard against the stop on servo. Has to be a cut-off valve issue. I did a simple test where I disconnected the cable like you recommended and made sure it was ICO, then I fired up the boost pump until I had full pressure (about 30 psi). After shutting off boost pump, I saw the pressure drop, this is different to what has happened in the past. I will have mech remove valve and see if it can be lapped.

Now i have a new awesome problem, probably related! Now engine wont shut down with ICO. I pull mixture engine runs great, checked cable travel is stop to stop. Turned on boost pump with idle cutt off and watched for 30 psi, then shut off pump and it immediately leaked down. Bet mixture valve is shot.

Im kgyr

Where are you based? It has to be within 50 miles as im only a solo rated student till jan.

This is the problem i am chasing, a miss at idle with afterfire.

Thanks, Ill push the issue with him. A little appropriate goop never hurt anything.

Lol thats my kind of guy, push a little extra calls for a little extra fuel, relax.

If they leak after this, ill convince my mx, or I'llget the sign-off from someone else. Thanks! Hopefully they wont leak. On my cars Ive always used permatex products vs dry with wonderful results. Since the manual doesnt state specifically, he wants to go by book, says insurance could use it as an out in case pf emergency.

Yes, Im working woth an A&P, should be assumed. I called him after posting and he wants them dry since manual doesn't mention sealant. So I have a set of superior gaskets on order from spruce. Thanks for the advice, sounds like it can be a gotcha if the ring goes in too far. Thanks doc, i have clean oil around so will probably use that. Thanks for the help. I have to go dry though since my IA has final say.

I know bits a pieces of this have been discussed before and I've researched other forums but I haven't been able to draw a useful conclusion. My engine misses at idle and then has an after fire in the muffler. I don't like this happening although it doesn't happen in flight. I'm installing a JPI 830 soon but don't have engine monitoring yet. In searching for the problem I checked the intake bolts and they were fairly loose taking at least a turn to get 96 in-lbs. After twerking the bolts to 96" the misfire seemed to disappear and the engine ran smoother (could have been in my head). Its a week later and the pops and farts are back and my engine is also misfiring. Time to change gaskets, I've ordered both the lycoming and superior gaskets. Three questions: I also ordered the red o-ring gaskets for the other end of the intake tubes. Do the large O-rings have to be changed after removing tube or can I clean up tube, lube the end with clean oil and stick it back in? Do you guys use goop such as permatex #3 avaition, on the paper gaskets or do it dry? If you are in the pro-goop crowd, which is your favorite gasket sealer for this purpose? How about power grab, hold it tight for 30 seconds and go fly! Thanks, Adam

My plane was never weighed, factory had a list of equipment and went from there. If my mechanic updates weight at balance by subtracting weight at the correct stations, it's all bonus useful. I don't want to re-weigh it as the little things add up to probably 25 lbs of crap. Lol, don't use his scales unless you recently removed a BUNCH of stuff.

Seems like the Cs and Fs are best useful, maybe I'm wrong.

My IA and I are going to measure all the dead crap I take out and possibly modify weight and balance, so I have room to get 5lbs fatter. My plane has 1005 lbs useful, so not too bad. It came from factory with something like 1050. Oxygen system is from 1968 so I would like to remove it, I can't find tank or record of it being removed, so that might be a bumb in useful right there.

I've been on the hunt for things to take out and wires to get rid of, there is alot of abandoned wiring. I need to get my servos serviced, they are cheap from brittain, so I'm going to fix the autopilot, seems like one of the cheapest systems to maintain. Thanks for the info, glad, I didn't rip her out!

I do have an auto pilot bit its only the wing leveler (track a vor, or bug). ZThis looks like it would be for pitch, I'll send an email to brittain. I would love to get alt hold from bittian.

I have an elt, I'll check to see if this is wired to that. No other devices besides that that I can think of.

Im really curious as to what this is. I though an antenna but in the hull thats weird plus it swivels along pitch axis. Any help in the identification would be appreciated!

I'll take it off, I'm headed out there to remove a broken zerk on the gear and grease the gear. I guess it's not worth the trouble. I didn't think the FAA was going around that much. It may even be in the log books, but I think it's causing more drag than not. So I'll ditch it. Thanks, Raptor, I've followed your continuous thread about your "D"! I wen't through a dozen squawks and 6 months before I could fly, I would clutch my pillow and read your thread late at night for inspiration LOL! I too found a MX that will work with some owner assisted stuff. I will get rid of the scoop and stick with the brackett. My brackett filter has gotten really dirty in 40 hours so it must be working! I fly in the desert so dirt is a major concern. I feel like if an FAA inspector came up to me about the scoop I would grab the drill pull the five screws hand him the scoop and reinstall screws. I'm reasonable, don't know if the FAA is.

Anybody on the ramp can see that it's there. I didn't put it there, so I'm not too worried about it. If I got into a crash, I doubt that would be the cause. I don't know what to make of it. I would use a Donaldson, but they don't make one of the curved ones for the M20F, E. So I guess it's the bracket, it's only $10-15 a filter cartridge. That goop is nasty though. I live in a dusty environment so I need good filtration, I've read the K&N lets more through.

My m20F used to have a turbo, but has been returned to stock with overhauled engine. The Ram air was deleted along the way and all cables and hole are gone. It cruises at 140 Kts at 4 or 5k feet at about 9gph. On takeoff it has about 28"MP when ambient is 29. I am a student and have been as high as 10500, but i didnt take down cruise numbers. Ive been thinking of removing scoop and possibly installing challenger filter, i hate the oil that comes off the brackett filter! Are these cruise numbers about usual? Do you think this scoop causes more drag than benefit? It just uses the screws from filter to hold it on.

Then, that was a bad example, stop proving me wrong! I'm sending this by tapping bare wires cause all three of my computers, both phones, and my ipads failed explosively.

I have access to two Ipads and an Iphone, In-dash Gps, and my girlfriends android with Avare. Also I can use Cosine and Sine to figure out wind correction or crosswind with any calculator. Should we teach old tech, not really. Should we all learn to make bread just in case it's not around? I think messing around with an E6B and fumbling a clumsy chart in flight takes time from looking out the window, I think they are more dangerous and you are more prone to errors. I think you are more likely to accidentally bust airspace. How many carry a road Atlas in your car in case your phone dies? I think those saying you should have to learn the E6B should have to take trigonometry to learn how the wind correction portion is laid out and do a mathematical proof of how it works before you use the Wiz-Bang gadget E6B. I think you should have to make one out of discarded items found at airstrips in case your E6B fell out the window. In-case you don't have paper you should learn how to refine paper from woodchips and then make an E6B. How much is too much? At some point as technology progresses you have to leave out some of the old crap, use the best tools available and take REASONABLE precautions to have a backup (Like print the Navlog from your foreflight plan, so you have all the headings should you lose all three I-products in flight, plus your panel GPS.) Hanging on to some romance of using the same thing Amelia used when she got lost is silly. Nobody loves old tech as much as me, but when my ass or the asses of people I care about is on the line I don't use it. I love looking at an old bomb site, or flight suite at a museum, or the aiming system for a Sherman tank and thinking wow these guys got it done, they accomplished alot with what they had. I don't think, however, you should have to do your first mission in a Sherman in so you know how in-case your Abrams breaks down and all you have is a Sherman. People hang on to this idea (especially if they already have their license and don't have to be re-tested on the E6B) because they think of it as a right of passage with some far-fetched justification analogous to something like: "You should learn binary, before you use a computer in case you have to send an email over a phone line by touching two wires together" Well, I've got to back to my E6B flight planning for our dual XC since my instructor started with the E6B and thinks I should know it too! After check ride I will throw it out the window in accordance with 91.15. Just my Two Cents.