Mailing List lml@lancaironline.net Message #67613
From: Greenbacks, UnLtd. <N4ZQ@VERIZON.NET>
Subject: Re: [LML] Hydraulic pump
Date: Thu, 24 Oct 2013 21:55:53 -0400
To: Chris Zavatston <chris_zavatson@yahoo.com>
Cc: List Lancair Mailing <lml@lancaironline.net>
I'll check in the morning.
It is bizarre!

Surely, someone in the LML group must have encountered this pump sound along the way.
As the LML pump guru, any help you can offer will be much appreciated.


On Oct 24, 2013, at 9:40 PM, Chris Zavatston wrote:

> Angier,
> If you the dump valve and let the pump run, does it sound the same?
> Hopefully you find an LB in your part number. That would indicate a current pump body.
> I can't imagine what might have broken to make that noise yet still allow the pump to still produce pressure.
> Chris
>
> Sent from my spiffy iPhone
>
> On Oct 24, 2013, at 6:18 PM, "Greenbacks, UnLtd." <N4ZQ@VERIZON.NET> wrote:
>
>> Hi Chris,
>>
>> Yes, all sound was coming from the pump.
>> I'll get the part number in the morning and download the pressure data for a look.
>>
>>> There was the high speed clackety sound superimposed on what sounded like the pump cycling on and off several times during retraction.
>> Yes exactly!!
>>
>> Any idea of the cost for a replacement motor?
>> Will I need a 2nd mortgage on my house?
>>
>> Angier
>>
>>
>>
>> On Oct 24, 2013, at 8:32 PM, Chris Zavatson wrote:
>>
>>>
>>> Angier,
>>> Now that is different.
>>> Hard to tell from the video- were all the sounds truly coming from the pump?  There was the high speed clackety sound superimposed on what sounded like the pump cycling on and off several times during retraction.  That sounds like pressure switches tripping.  It is not cycling during extension.  What were the system pressures doing?
>>> You have an older motor - phased out in '94, I believe.  What is the full part number on the label?
>>> Chris
>>>
>>>
>>> On Thursday, October 24, 2013 12:16 PM, "Greenbacks, UnLtd." <n4zq@verizon.net> wrote:
>>> https://www.youtube.com/watch?v=Jq5PpjCG77s
>>>
>>> --
>>> For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html
>>>
>>>
>>>
>>>
>>

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