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lcottrell
Joined: 29 May 2006
Posts: 1494
Location: Jordan Valley, Or
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 Posted: Tue Aug 29, 2017 10:56 am Post subject: Parts needed: Old style Ivo prop adjustment cams |
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Jerry, The one that I had the levers that were on the end of the prop and only about an inch long. You adjusted it by the addition of thin washers to increase pitch. More washers more pitch????? At least I think that is the way it goes. I still have some of that stuff, but I need to know for sure what it is that you need. If you can be more specific - pictures- then I may be able to help.
Having said all that- If it was me I would just buy a new prop., and I would get a two blade. A 503 on that plane is going to be to "me" marginal at best. A two blade will give you better climb, which to me is more useful than quiet or faster cruise. Your cruise speed is going to be probably a bit less than 60 MPH without some clean up of drag factors any way.
Of course every thing that could be considered advice only mirrors what suits me, nothing more. The offer still holds however- I know I have a three inch spacer and several shims and plates. If you can use them, no charge, just postage.
Larry
On Tue, Aug 29, 2017 at 12:06 PM, Jerry-TS-MkII <12flybellaire(at)gmail.com (12flybellaire(at)gmail.com)> wrote:
| Quote: | --> Kolb-List message posted by: "Jerry-TS-MkII" <12flybellaire(at)gmail.com (12flybellaire(at)gmail.com)>
Hello everyone,
Having a OLD STYLE 3 blade Ivo that I hope to use initially on my Twinstar Mk II, it came without the adjustment cams or adjustment shims. This prop doesn't have the large "easy to adjust external screw and lock nut") So it's at 6 degrees as I read the "no-cam" default. Ideally, I need to find/make/buy 3 cams, and a set of shims.. but I can make either if needed. The shims just round plates, of unknown thickness (at this point) that stack in front, or behind the prop blades, to move the 3 cams.
Not sure if Ivo will send me any drawings since they are discontinued parts. But apparently they just have a screw (and some Lock-tite) holding them onto the end of the torque rod in the prop blade. If anyone has converted from 3 blade to 2, and has a spare blade w/cam, and would be willing to sell 3, or 1, or send me one cam and shim to duplicate, I'd gladly return with a coupon to your pub of choice, or health-food store, (I find them to be one and the SAME place myself.. but others might not). Someone's junk drawer probably has one (or more). But if like my shop, 3 weeks to find them would be the problem.. LOL. Any productive thoughts, sources, manifest instructions, etc, all welcome! Thanks, Jerry
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lcottrell
Joined: 29 May 2006
Posts: 1494
Location: Jordan Valley, Or
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| Posted: Tue Aug 29, 2017 11:29 am Post subject: Parts needed: Old style Ivo prop adjustment cams |
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I was curious so I went out to the shop to see what I had. If I am correct what you need is the lever on the end of the prop and perhaps the plate and spacer. The blade was on a 447 and still running when I flipped upside down, so I don't think the blade is usable. If any of the rest is of use let me know.Larry
541 586 5030
On Tue, Aug 29, 2017 at 12:06 PM, Jerry-TS-MkII <12flybellaire(at)gmail.com (12flybellaire(at)gmail.com)> wrote:
| Quote: | --> Kolb-List message posted by: "Jerry-TS-MkII" <12flybellaire(at)gmail.com (12flybellaire(at)gmail.com)>
Hello everyone,
Having a OLD STYLE 3 blade Ivo that I hope to use initially on my Twinstar Mk II, it came without the adjustment cams or adjustment shims. This prop doesn't have the large "easy to adjust external screw and lock nut") So it's at 6 degrees as I read the "no-cam" default. Ideally, I need to find/make/buy 3 cams, and a set of shims.. but I can make either if needed. The shims just round plates, of unknown thickness (at this point) that stack in front, or behind the prop blades, to move the 3 cams.
Not sure if Ivo will send me any drawings since they are discontinued parts. But apparently they just have a screw (and some Lock-tite) holding them onto the end of the torque rod in the prop blade. If anyone has converted from 3 blade to 2, and has a spare blade w/cam, and would be willing to sell 3, or 1, or send me one cam and shim to duplicate, I'd gladly return with a coupon to your pub of choice, or health-food store, (I find them to be one and the SAME place myself.. but others might not). Someone's junk drawer probably has one (or more). But if like my shop, 3 weeks to find them would be the problem.. LOL. Any productive thoughts, sources, manifest instructions, etc, all welcome! Thanks, Jerry
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=472321#472321
====================================
-List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?Kolb-List
====================================
FORUMS -
eferrer" target="_blank">http://forums.matronics.com
====================================
WIKI -
errer" target="_blank">http://wiki.matronics.com
====================================
b Site -
-Matt Dralle, List Admin.
rel="noreferrer" target="_blank">http://www.matronics.com/contribution
====================================
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The older I get, the less tolerant I am of those who are intolerant of others.
If you forward this email, or any part of it, please remove my email address before sending.
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Jerry-TS-MkII
Joined: 23 Aug 2017
Posts: 79
Location: Indiana
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| Posted: Tue Aug 29, 2017 1:14 pm Post subject: Re: Parts needed: Old style Ivo prop adjustment cams |
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Larry,
Those would be very helpful! My reduction box didn't have the extension, so that, and the plate, and shims (if you have any, I could use). I sent you a PM. (and a text). Get back with me, and I'll send an address. Jerry
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Tue Aug 29, 2017 5:24 pm Post subject: Re: Parts needed: Old style Ivo prop adjustment cams |
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Wish I had posted 2 months ago on the list that I needed a spacer. I bought a new one from Ivo for the FF...
Sigh...
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Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing. |
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woody
Joined: 26 Mar 2013
Posts: 22
Location: Gulf Coast
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| Posted: Wed Aug 30, 2017 5:20 am Post subject: Re: Parts needed: Old style Ivo prop adjustment cams |
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I hope that the old spacer system works out for you but like Larry said, I would just buy a new prop. There is a reason that they quit making those. My 503 DCDI was a pain to dial in to keep my EGT in check. A full turn is all there is between "to hot" and "acceptable". The EGT temps still run about 1075 in level flight according to my EIS. WOT on climb out gets me about 6550 rpm.
If you melt a piston, a new engine will cost you a lot more than a prop.
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Jerry-TS-MkII
Joined: 23 Aug 2017
Posts: 79
Location: Indiana
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| Posted: Wed Aug 30, 2017 8:13 am Post subject: Re: Parts needed: Old style Ivo prop adjustment cams |
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Thanks to all for the good info and Larry is going to help me with his parts. Really a nice feeling to have a supportive group. Something about pilots and sailers, (when I was Hobie sailing).. that really makes a person feel good. I told Larry about helping others build or repair their U/Ls way back when, and teaching 2 of them to fly. I did their test flights too.. to check things out.. and maybe to instill confidence in their aircraft.
As for new props.. yes I agree 100%, new and improved would be much better. When I went to Georgia to pick up this Twinstar, the trailer provided was really heavy and with no brakes. Oh, great fun, pulling THAT down the road with all the sun worshipers out to view the eclipse, and basically driving like crazy people. Sorta glad they are ON THE GROUND, and not flying! I had to swap vehicles with a friend.. but in doing so had to pay her lapsed insurance, and then found 2 bad wheel bearings on the drive to my house before the big trip. Doing it myself was only(?) $300 (or the cost of a good used IVO!!). But I knew she was sweating bullets money wise.. so it was helping her, and me.. to have a hearty tow truck. One guy at a rest stop looked at the rig (with no brakes) and then PRAYED for me, cause I hadn't reached the Smokies yet! (Nothing like being puckered with that commentary). But the trip went fine. I just knew it made for an expensive "rental". So Karma may be smiling for helping her out too. My issue is adjusting the pitch of my billfold!! The prop should be more straight forward. And some classic R/C kits will go onto RCGroups to help fund this rework.
I have some options now, and will be able to get it in the air.. and make some decisions. Main goal is to do some flying before winter, so I can bring it back home, and do some rework over the winter, knowing more specifically what issues to address more fully.
Having looked at numerous other forums on here, some have ZERO activity. So it's really nice to see this group is active, supportive, and very willing to share knowledge and more. I LIKE it!! Pretty excited about doing some flying soon!! Thanks to all for the input and assistance!! Jerry
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