EricJ Posted January 1, 2019 Report Posted January 1, 2019 1 hour ago, Skates97 said: The brake valve was not the problem. The cable (which probably was never lubed in its life) got stuck about halfway in when I pushed to release it which was not enough to release the valve. With the cable unhooked from the valve it operated very smoothly. After some TLC the cable operates smoothly now. There was always quite a bit of resistance operating it from the time I got the plane a couple years ago. It would push in and it would sort of stick halfway and then pop through and go the rest of the way. I thought that was just the way the brake released (you don't know what you don't know). I didn't know that the valve is smooth throughout its range of operation. What lubricant did you wind up using on the cables? Quote
Skates97 Posted January 1, 2019 Author Report Posted January 1, 2019 9 minutes ago, EricJ said: What lubricant did you wind up using on the cables? I just used tri-flow on it. 2 Quote
Cody Stallings Posted January 1, 2019 Report Posted January 1, 2019 6 hours ago, carusoam said: Our governors are equipped with an internal gear pump to supply pressurized oil to the control valve.... So... we have two gear pumps for oil on our engines... Why the engine’s oilP varies with rpm... the oil pump slows with engine rpm as well... The problem I have... this is from old fuzzy memory... anyone have a drawing of a governor? @Cody Stallings PP thoughts only... Best regards, -a- I don’t have any drawings or Breakdowns of Govs. 1 Quote
carusoam Posted January 6, 2019 Report Posted January 6, 2019 Great page, Ross! That looks like the M20C’s governor. the description is like the Rosetta Stone for governors... every part has a quirky unique name for it... 1) The governor’s gear pump is pictured, but doesn’t get called out by name... next to ‘engine oil (supply)’ 2) the oil pressure control valve is called ‘pilot valve plunger’... 3) the fly weights that control the valve don’t look much like traditional flyweights... 4) this is a great lesson on why most of our props fail to high rpm status when oil pressure is lost in the governor... Thanks for digging that out... Thanks to Richard, who’s continuous learning exercises continue to educate the entire community! Best regards, -a- 1 Quote
apenney Posted August 25, 2019 Report Posted August 25, 2019 On 11/25/2018 at 8:27 PM, Marauder said: Your brakes may be similar to the one on my 75 F. I’m in the process of collecting parts to rebuild mine. The theory presented above about the system being pressurized might be something to look at. When I pulled the cap on my reservoir, I noticed it had a hole in it. I wonder if that hole got plugged would it pressurize the system. If that happened, you would think it would release that pressure when you descend. I would look at the cable. If it popped out, something doesn’t sound right. This is the parking brake in my plane. Sent from my iPhone using Tapatalk Pro How did you get the photo from this angle? I can only see mine from underneath the panel. Quote
Marauder Posted August 25, 2019 Report Posted August 25, 2019 How did you get the photo from this angle? I can only see mine from underneath the panel. I have an access panel on top (SWTA 201 windscreen mod). Sent from my iPhone using Tapatalk Pro Quote
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