Yetti Posted March 25, 2015 Report Posted March 25, 2015 Sometimes it is good to drop bolts cause then you have to look for them and find other things Sure it is just the tell tale drain when the pump goes south, but it would be nice to have that fuel telling you to change the pump. Of course this was during replacement of the brake tubing between the reservoir and the parking brake. And the tubing was the wrong size 3/8 instead of 1/4 1 Quote
Yetti Posted March 26, 2015 Author Report Posted March 26, 2015 Oh and 1985 was a good year for fuel lines Quote
BKlott Posted March 26, 2015 Report Posted March 26, 2015 Fuel and oil hoses are two areas where it doesn't pay to push your luck. When you look at the big picture costs of aircraft ownership those hoses cost next to nothing but can sure ruin your day if one cuts loose. My IA told me a story of replacing a fuel hose on a Comanche during an Annual. The metal tag on the hose was dated 1970 something and as he removed the hose, it crumbled in his hands. Just think of the guy flying that airplane with the hose in that condition! Brian Quote
Yetti Posted March 26, 2015 Author Report Posted March 26, 2015 Replacing hoses is an preventive maintenance item that pilots can do per the FAR. We got the Precision Hose Technology full kit out of Tulsa. So far I have been impressed with the fit. Pay the money for the internal fire sleeve and I believe the hoses don't have a useful life limit. It's not hard, just time consuming. The pump to injector line in the picture took about an hour because of the Adel clamp attached to the oil pan bolt. Quote
carusoam Posted March 27, 2015 Report Posted March 27, 2015 Seems like you may have two challenges... 1) Is that leak coming out of the pump's drain? The drain being where fuel comes from when the diaphragm or seals leak. 2) Metal mites... Best regards, -a- Quote
Yetti Posted March 30, 2015 Author Report Posted March 30, 2015 An undertaking not for the faint of heart, not all wrenches survived intact a bit of grinding here and shortening there, but 9 less things to worry about. Quote
FloridaMan Posted March 30, 2015 Report Posted March 30, 2015 Oh and 1985 was a good year for fuel lines I believe that I had one from 1967 that was removed that went from the firewall to fuel pressure gauge when the EDM-900 was installed last month. Quote
Shadrach Posted March 30, 2015 Report Posted March 30, 2015 None of the hoses in my F were fire sleeved from the factory. I replaced everything in 2009. All were still pliable and in reasonable shape save the hose (arguably the most important) that runs from the servo up between Cyl 1 and 3 to the flow divider. It was really quite brittle. I fire sleeved all of the new hoses on install. It was much harder to route some of them, but I feel much better about the plane now! Quote
Yetti Posted March 30, 2015 Author Report Posted March 30, 2015 Internal firesleeved teflon on all the new ones. The oil and fuel hose inside the cockpit are stainless braided teflon, so we should be good for a long while Quote
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