Today's Message Index:
----------------------
1. 06:48 AM - Re: Kolb Ultrstar Wing Condition (ratcobob)
2. 07:41 AM - Re: Kolb Ultrstar Wing Condition (Rex Rodebush)
3. 08:19 AM - Re: Re: Kolb Ultrstar Wing Condition (Rick Neilsen)
4. 08:33 AM - Re: Re: Kolb Ultrstar Wing Condition (james.vanlaak@gmail.com)
5. 10:20 AM - Re: Re: Kolb Ultrstar Wing Condition (Pfatchantz)
6. 10:24 AM - Re: Re: Kolb Ultrstar Wing Condition (Pfatchantz)
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Subject: | Re: Kolb Ultrstar Wing Condition |
Here's the Cuyuna engine guy
http://zdenterprises.net/
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=489454#489454
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Subject: | Re: Kolb Ultrstar Wing Condition |
Impossible question to answer just based on pictures. I would remove the aluminum
surface oxidation in several spots to determine the depth. I would suspect
that the aluminum is probably OK. You might also drill out a number of rivets
in random locations to see if the corrosion is through the rivet or just on
the surface of the head and how deep. I would probably consider drilling them
all out and replacing with stainless steel rivets. A lot of work but not a lot
of money.
Again, these are idle thoughts and not recommendations. Worth what you paid for
them.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=489456#489456
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Subject: | Re: Kolb Ultrstar Wing Condition |
I have heard that aluminum oxidizes and the oxidation forms a protective
barrier that stops further oxidation? If this is so leave it alone. I was
surprised to see the rust on the rivets. I think mine are stainless steel.
Absolutely drill out a few rivets to see how bad they are. Wow that would
be a major job drilling out and replacing thousands of rivets. Then you
would have to disassemble the structure to get the remainder of the old
rivets out. I have remainder of a few rivets that didn't seat properly
still in my plane but you would have thousands of them.
Also that engine didn't have that great a reputation, can you still get
parts?
Good luck.
Rick Neilsen
Redrive VW powered MKIIIC
On Mon, Jun 3, 2019 at 10:43 AM Rex Rodebush <jrrodebush@gmail.com> wrote:
>
> Impossible question to answer just based on pictures. I would remove the
> aluminum surface oxidation in several spots to determine the depth. I
> would suspect that the aluminum is probably OK. You might also drill out a
> number of rivets in random locations to see if the corrosion is through the
> rivet or just on the surface of the head and how deep. I would probably
> consider drilling them all out and replacing with stainless steel rivets.
> A lot of work but not a lot of money.
>
> Again, these are idle thoughts and not recommendations. Worth what you
> paid for them.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=489456#489456
>
>
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Subject: | Re: Kolb Ultrstar Wing Condition |
Different kinds of aluminum have different corrosion properties. Pure
aluminum forms an oxide layer that protects that below it. This is called
alclad aluminum. I do not believe the aluminum tubing in Kolbs is alclad.
On Mon, Jun 3, 2019 at 11:21 AM Rick Neilsen <neilsenrm@gmail.com> wrote:
> I have heard that aluminum oxidizes and the oxidation forms a protective
> barrier that stops further oxidation? If this is so leave it alone. I was
> surprised to see the rust on the rivets. I think mine are stainless steel.
> Absolutely drill out a few rivets to see how bad they are. Wow that would
> be a major job drilling out and replacing thousands of rivets. Then you
> would have to disassemble the structure to get the remainder of the old
> rivets out. I have remainder of a few rivets that didn't seat properly
> still in my plane but you would have thousands of them.
>
> Also that engine didn't have that great a reputation, can you still get
> parts?
>
> Good luck.
>
> Rick Neilsen
> Redrive VW powered MKIIIC
>
> On Mon, Jun 3, 2019 at 10:43 AM Rex Rodebush <jrrodebush@gmail.com> wrote:
>
>>
>> Impossible question to answer just based on pictures. I would remove the
>> aluminum surface oxidation in several spots to determine the depth. I
>> would suspect that the aluminum is probably OK. You might also drill out a
>> number of rivets in random locations to see if the corrosion is through the
>> rivet or just on the surface of the head and how deep. I would probably
>> consider drilling them all out and replacing with stainless steel rivets.
>> A lot of work but not a lot of money.
>>
>> Again, these are idle thoughts and not recommendations. Worth what you
>> paid for them.
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=489456#489456
>>
>>
>>
>>
>>
>>
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Subject: | Re: Kolb Ultrstar Wing Condition |
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Subject: | Re: Kolb Ultrstar Wing Condition |
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