---------------------------------------------------------- RV7-List Digest Archive --- Total Messages Posted Sat 12/03/05: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:32 PM - -7 aileron belcrank bushings (Charlie England) 2. 06:52 PM - Re: -7 aileron belcrank bushings (DonVS) 3. 07:13 PM - Re: -7 aileron belcrank bushings (DonVS) ________________________________ Message 1 _____________________________________ Time: 06:32:31 PM PST US From: Charlie England RV list Subject: RV7-List: -7 aileron belcrank bushings --> RV7-List message posted by: Charlie England Just spent some time perusing old messages about bellcrank bushing problems & got a few answers but still have some questions. The bushings I got will slide into the bellcranks fairly easily until they hit the point where the 2nd flange is welded, about 1/3 of the way down from the top of the tube. Either bushing into either bellcrank, same symptom. A 3/8 drill bit will slide through the bellcrank tube without binding; actually, it's fairly loose. In addition, neither bushing will accept an AN4 bolt shaft. The threads will go in with slight binding, but any attempt to go further results in the plating being scraped off the bolt at the thread-shaft transition point. (I've used the deburring tool on the ends of the bushings; no help.) Is everyone having to ream both the bellcrank tube & the bushing? I suppose that I can turn the bushing OD down without too much trouble but trying to drill it to 1/4"+ for the bolt, without a lathe, doesn't strike me as fun. Charlie (feeling like I paid for parts that should fit) ________________________________ Message 2 _____________________________________ Time: 06:52:10 PM PST US From: "DonVS" Subject: RE: RV7-List: -7 aileron belcrank bushings --> RV7-List message posted by: "DonVS" "Drill" it wiyg a 1/4 inch reamer. Hold the bushing in a vice cery lightly. Works easy. -----Original Message----- From: owner-rv7-list-server@matronics.com [mailto:owner-rv7-list-server@matronics.com]On Behalf Of Charlie England Subject: RV7-List: -7 aileron belcrank bushings --> RV7-List message posted by: Charlie England Just spent some time perusing old messages about bellcrank bushing problems & got a few answers but still have some questions. The bushings I got will slide into the bellcranks fairly easily until they hit the point where the 2nd flange is welded, about 1/3 of the way down from the top of the tube. Either bushing into either bellcrank, same symptom. A 3/8 drill bit will slide through the bellcrank tube without binding; actually, it's fairly loose. In addition, neither bushing will accept an AN4 bolt shaft. The threads will go in with slight binding, but any attempt to go further results in the plating being scraped off the bolt at the thread-shaft transition point. (I've used the deburring tool on the ends of the bushings; no help.) Is everyone having to ream both the bellcrank tube & the bushing? I suppose that I can turn the bushing OD down without too much trouble but trying to drill it to 1/4"+ for the bolt, without a lathe, doesn't strike me as fun. Charlie (feeling like I paid for parts that should fit) ________________________________ Message 3 _____________________________________ Time: 07:13:59 PM PST US From: "DonVS" Subject: RE: RV7-List: -7 aileron belcrank bushings --> RV7-List message posted by: "DonVS" Lets try that again. "Drill" it with a 1/4 inch reamer. Hold the bushing in a vice with a notch for round stock, very light pressure to avoid pinching the reamer. -----Original Message----- From: owner-rv7-list-server@matronics.com [mailto:owner-rv7-list-server@matronics.com]On Behalf Of DonVS Subject: RE: RV7-List: -7 aileron belcrank bushings --> RV7-List message posted by: "DonVS" "Drill" it wiyg a 1/4 inch reamer. Hold the bushing in a vice cery lightly. Works easy. -----Original Message----- From: owner-rv7-list-server@matronics.com [mailto:owner-rv7-list-server@matronics.com]On Behalf Of Charlie England Subject: RV7-List: -7 aileron belcrank bushings --> RV7-List message posted by: Charlie England Just spent some time perusing old messages about bellcrank bushing problems & got a few answers but still have some questions. The bushings I got will slide into the bellcranks fairly easily until they hit the point where the 2nd flange is welded, about 1/3 of the way down from the top of the tube. Either bushing into either bellcrank, same symptom. A 3/8 drill bit will slide through the bellcrank tube without binding; actually, it's fairly loose. In addition, neither bushing will accept an AN4 bolt shaft. The threads will go in with slight binding, but any attempt to go further results in the plating being scraped off the bolt at the thread-shaft transition point. (I've used the deburring tool on the ends of the bushings; no help.) Is everyone having to ream both the bellcrank tube & the bushing? I suppose that I can turn the bushing OD down without too much trouble but trying to drill it to 1/4"+ for the bolt, without a lathe, doesn't strike me as fun. Charlie (feeling like I paid for parts that should fit)