Today's Message Index:
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1. 07:39 AM - Re: 503 oil pump cable end wearing (Tom Jones)
2. 08:14 AM - Re: Re: 503 oil pump cable end wearing (John Hauck)
3. 10:56 AM - Re: 503 oil pump cable end wearing (Tom Jones)
Message 1
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| Subject: | Re: 503 oil pump cable end wearing |
I called Lockwood Aviation tech support this morning and told him my 503 brass
oil injection cable barrel swedge had worn out quickly and if he had any ideas
why. He dodged the question and said he only uses stainless steel swedges and
stainless steel cables. He silver solders them.
They only make oil injection cables to fit the throttle cable splitters they sell.
He said if I get the exact length measurements and size of barrel swedges
on the ends he would make a stainless steel cable and stainless barrel swedge
to fit the Kitfox throttle reverser bellcrank.
He also said he sometimes bends the pump cable bracket to get better alignment
of the cable. Several of you have suggested that too.
As far as excessive vibration of my engine, I don't notice any excessive vibration
and have had comments from other pilots on how smooth it is in flight.
I really appreciate the number of replies I recieved from the Kolb forum on this
question. There are a lot of good ideas for me to keep in mind.
--------
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=437656#437656
Message 2
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| Subject: | Re: 503 oil pump cable end wearing |
I go back to my comment of finding the cause before proceeding to bigger
band aids. For some reason, and the first to come to my mind is excessive
vibration, that fitting is wearing abnormally fast. The vibration may not
be felt in the airframe, but possibly could be a high frequency vibration
being generated by the 503 engine which is probably fan cooled. Something
is exciting that fitting to cause it to dance and wear. I don't pay a lot
of attention to two stroke Rotax engines anymore because I don't live in
that environment, and haven't since 1993. With my limited knowledge I
haven't heard of others having this particular problem.
If you don't find and fix what is causing your part to wear, when there are
thousands of others out there that are not wearing, what good is it to
replace with something else?
john h
mkIII
Titus, Alabama
As far as excessive vibration of my engine, I don't notice any excessive
vibration and have had comments from other pilots on how smooth it is in
flight.
I really appreciate the number of replies I recieved from the Kolb forum on
this question. There are a lot of good ideas for me to keep in mind.
--------
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA
Message 3
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| Subject: | Re: 503 oil pump cable end wearing |
John Hauck wrote:
> I go back to my comment of finding the cause before proceeding to bigger
> band aids. For some reason, and the first to come to my mind is excessive
> vibration, that fitting is wearing abnormally fast. The vibration may not
> be felt in the airframe, but possibly could be a high frequency vibration
> being generated by the 503 engine which is probably fan cooled. Something
> is exciting that fitting to cause it to dance and wear. I don't pay a lot
> of attention to two stroke Rotax engines anymore because I don't live in
> that environment, and haven't since 1993. With my limited knowledge I
> haven't heard of others having this particular problem.
>
> If you don't find and fix what is causing your part to wear, when there are
> thousands of others out there that are not wearing, what good is it to
> replace with something else?
>
> john h
> mkIII
> Titus, Alabama
>
I appreciate your comments John. I will pursue that possibility too.
Thanks
--------
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=437667#437667
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