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#11
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"Mike Spera" wrote in message nk.net... What did you use for new pins? Would it not be easier to tap the top and use an AN bolt instead of a pin? I would not object to a hole at the top. Heavy wall roll pins seemed like a more trouble free installation and don't require any extra room for a head. What does this "Piper conversion kit" do? Piper offered a conversion kit to change the bow tie yokes to ram's horn, it was horribly expensive and rarely available. Since I've never seen one I have no idea how it's configured. Thanks, I have a lathe, so I whittled out a couple of fancy looking aircraft quality aluminum bushings (dimensions long gone from memmory) to adapt the smaller shafts and repinned them. The hole at the top of the yoke was filled with plastic aluminum from a tube and sanded to match the contour. My powder coater assured me that the plastic aluminum filler would survive high temps of powder coating, there is only a slight, almost imperceptible dimple caused by shrinkage showing through the powder coat. Being an A&P, I simply made a log book entry using the Piper conversion kit number (gasp) since I was pretty sure nobody had ever seen the real Piper conversion yokes and so far nobody has said a word about it. |
#12
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Hi Jim,
You nailed it. I do wonder how many are sold. I found another future source of this, according to their web site: http://www.geronimomontana.com/apache.htm Down a the bottom of the page, they mention 3 items of interest in the coming-soon category: Ram's-horn yokes at $1295 per pair, new engine and fuel gauges (this sound very interesting), and dual brakes. As a PA-23 owner, you might want to check this site out if you've not already seen it. Ronnie "Jim Burns" wrote in message ... Hey Ronnie, I just looked at Avion's site and it looks like it would only cost us $1200 to do the Aztec! Makes you really wonder if they sell any doesn't it? Jim "nobody" wrote in message .. . Mike, I was really hoping you'd get an answer to this. I have a 1964 Piper Aztec that I'd like to do the same thing with, but when I looked at doing this before, it was just too expensive. Ronnie "Mike Spera" wrote in message ink.net... Still trying to find out if anyone has removed the old bowtie yokes from their shafts and replaced them with ram's horns. Lots of folks changed out the yoke/shafts as units, but nobody will fess up that they actually swapped out the yokes themselves. Since Piper lists the yoke/shaft as one part number, there probably is no approved method of separating them. Looks like I will return the ram's horns with bent shafts I bought from the boneyard. If you cannot demate/remate them from/with the shafts, they are useless. Thanks, Mike |
#13
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Geronimo, as far as I know, is a pretty good outfit. I've talked to them on
the phone a couple times regarding heater upgrades. They've had that note about the Coming-Soon Ram's horns on their site for quite a while though, so I'm not holding my breath. Jim "nobody" wrote in message t... Hi Jim, You nailed it. I do wonder how many are sold. I found another future source of this, according to their web site: http://www.geronimomontana.com/apache.htm Down a the bottom of the page, they mention 3 items of interest in the coming-soon category: Ram's-horn yokes at $1295 per pair, new engine and fuel gauges (this sound very interesting), and dual brakes. As a PA-23 owner, you might want to check this site out if you've not already seen it. Ronnie "Jim Burns" wrote in message ... Hey Ronnie, I just looked at Avion's site and it looks like it would only cost us $1200 to do the Aztec! Makes you really wonder if they sell any doesn't it? Jim "nobody" wrote in message .. . Mike, I was really hoping you'd get an answer to this. I have a 1964 Piper Aztec that I'd like to do the same thing with, but when I looked at doing this before, it was just too expensive. Ronnie "Mike Spera" wrote in message ink.net... Still trying to find out if anyone has removed the old bowtie yokes from their shafts and replaced them with ram's horns. Lots of folks changed out the yoke/shafts as units, but nobody will fess up that they actually swapped out the yokes themselves. Since Piper lists the yoke/shaft as one part number, there probably is no approved method of separating them. Looks like I will return the ram's horns with bent shafts I bought from the boneyard. If you cannot demate/remate them from/with the shafts, they are useless. Thanks, Mike |
#14
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Mike Spera wrote: Still trying to find out if anyone has removed the old bowtie yokes from their shafts and replaced them with ram's horns. Lots of folks changed out the yoke/shafts as units, but nobody will fess up that they actually swapped out the yokes themselves. Since Piper lists the yoke/shaft as one part number, there probably is no approved method of separating them. Looks like I will return the ram's horns with bent shafts I bought from the boneyard. If you cannot demate/remate them from/with the shafts, they are useless. Thanks, Mike |
#15
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Mike Spera wrote: Still trying to find out if anyone has removed the old bowtie yokes from their shafts and replaced them with ram's horns. Lots of folks changed out the yoke/shafts as units, but nobody will fess up that they actually swapped out the yokes themselves. Since Piper lists the yoke/shaft as one part number, there probably is no approved method of separating them. Looks like I will return the ram's horns with bent shafts I bought from the boneyard. If you cannot demate/remate them from/with the shafts, they are useless. Thanks, Mike I have a '64 vintage pa28-140. I replaced the bowties with cast metal ram's horn yokes with PTT that I bought from Aircraft spruce. I believe they called them Navion yokes. We installed them an annual time and got local FSDO sign off. |
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