REFLECTOR: Help with poor running Franklin

Thu Mar 26 11:24:58 CDT 2009

Jerry,

I seem to remember someone having a similar problem with a Franklin.  It 
turned out that the MA-5 comes in different models with different venturis. 
When he got the right carb the engine ran fine.  My engine manual is at the 
hanger but I will check the number and get back to you.

Larry Coen
N136LC
SE/RG Franklin/IVO

--------------------------------------------------
From: "Jerry Teitsma" <jerryteits at comcast.net>
Sent: Wednesday, March 25, 2009 9:24 PM
To: <reflector at tvbf.org>
Subject: Re: REFLECTOR: Help with poor running Franklin

> Please help me with your ideas for my dilemma.
>
> I have flown my Velocity Elite FG for 26 hours but the engine has never 
> run well.  I have attributed that to oil blow by that has frequently 
> fouled plugs.  The rings did not seat at least partially due to the high 
> altitude where I fly (8200 ft. field and flying at 10,000 ft or more as 
> well as the hard steel cylinder linings. As a result, I recently pulled 
> the engine and did a top end overhaul with new softer cylinder liners.  It 
> now runs even worse.  I can't get more than 1500 rpm although it idles 
> fairly well.  It cuts in and out with back firing intermittently.  It acts 
> like it is starving for fuel or has induction leaks.  It is fairly 
> non-reactive to mixture changes.
>
> Following is a list of items that have been done in chasing the problem:
>
> 1.  I plugged the exhaust pipes and pressurized the intake manifolds to 
> about 15 psi using soap to look for any induction leaks.  I found none.
>
> 2.  The MA-5 carburetor was removed and sent in to a test shop where it 
> was checked for flow rate and a service bulletin 13 was performed.  It 
> tested out OK.
>
> 3.  The fuel flow rate was checked and found adequate in fuel flow and in 
> pressure.
>
> 4.  The mag timing was checked and rechecked and is right on.
>
> 5.  The mags were taken off the engine and checked for correct action and 
> timing.
>
> 6.  The wiring was traced through for the mags to the cylinders to make 
> sure they were not cross wired.
>
> 7.  The spark plugs (nearly new) were removed, cleaned and gaped.
>
> 8.  We removed the valve covers and checked the open and closing sequence 
> of intake and exhaust valves.  All seem to occur at the correct time and 
> in the correct overlap.
>
> The only thing we can think of that has not been checked is the cam for 
> proper lift and timing.
>
> Although it has never run well, it has run better prior to the overhaul. 
> Has anyone experienced similar problems?  Any ideas?  I would really 
> appreciate your input.  JT
>
> Jerry Teitsma
> PO Box 796, Granby CO 80446 (USPS mail/shipping)
> 36 Lodgepole Ct, Granby CO 80446 (UPS/FedEx shipping)
> 970-887-3910 (Phone/Fax)
> jerryteits at comcast.net
>
> ----- Original Message ----- 
> From: <reflector-request at tvbf.org>
> To: <reflector at tvbf.org>
> Sent: Wednesday, March 25, 2009 10:11 AM
> Subject: Reflector Digest, Vol 58, Issue 52
>
>
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>> Today's Topics:
>>
>>   1. Re:  I'm passing on this destination (gattenby at tulsaconnect.com)
>>   2.  Elevator cuff (gattenby at tulsaconnect.com)
>>   3. Re:  Elevator cuff (Brian Michalk)
>>   4. Re:  Elevator cuff (Stockman, Bill)
>>   5. Re:  Elevator cuff (nmflyer1 at aol.com)
>>   6. Re:  Elevator cuff (Dennis Martin)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Tue, 24 Mar 2009 14:01:31 -0500
>> From: <gattenby at tulsaconnect.com>
>> Subject: Re: REFLECTOR: I'm passing on this destination
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Message-ID: <web-22756828 at cgpro2.tulsaconnect.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
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>>
>> ------------------------------
>>
>> Message: 2
>> Date: Wed, 25 Mar 2009 09:41:39 -0500
>> From: <gattenby at tulsaconnect.com>
>> Subject: REFLECTOR: Elevator cuff
>> To: reflector at tvbf.org
>> Message-ID: <web-22920556 at cgpro2.tulsaconnect.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> An HTML attachment was scrubbed...
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>> ------------------------------
>>
>> Message: 3
>> Date: Wed, 25 Mar 2009 09:51:18 -0500
>> From: Brian Michalk <michalk at awpi.com>
>> Subject: Re: REFLECTOR: Elevator cuff
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Message-ID: <49CA44E6.6070800 at awpi.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> http://www.tvbf.org/search.html
>>
>> It used to be on the main page.  I need to add it.
>>
>> gattenby at tulsaconnect.com wrote:
>>> I've looked through the archives for a while. (any way to do a
>>> search?) for info on the elevator cuffs.
>>> I didn't find anything,  I know it's been discussed...
>>>
>>> My 2000 suv kit came with the cuffs,  the new manuals don't mention 
>>> them.
>>> Some builder sites have pictures of putting them on, some don't.
>>>
>>> What's the general thought on putting them on?
>>>
>>> Noel
>>>
>>> ------------------------------------------------------------------------
>>>
>>> _______________________________________________
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>>
>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Wed, 25 Mar 2009 10:54:33 -0400
>> From: "Stockman, Bill" <bill.stockman at daytonaero.com>
>> Subject: Re: REFLECTOR: Elevator cuff
>> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>> Message-ID:
>> <1C2BDF8F50E7444BA5B4E343D9FD6AA101210A79 at MI8NYCMAIL01.Mi8.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> They came with my kit (173 FGE LW) that I purchased in 1997, but was
>> advised by the factory to remove them once I put the VGs on.
>>
>>
>>
>> Bill Stockman, Senior Associate
>>
>> Dayton Aerospace
>>
>>
>>
>> (937) 369-4799 cell
>>
>> (937) 426-4300 work
>>
>> bill.stockman at daytonaero.com
>>
>> ________________________________
>>
>> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
>> Behalf Of gattenby at tulsaconnect.com
>> Sent: Wednesday, March 25, 2009 10:42 AM
>> To: reflector at tvbf.org
>> Subject: REFLECTOR: Elevator cuff
>>
>>
>>
>> I've looked through the archives for a while. (any way to do a search?)
>> for info on the elevator cuffs.
>>
>> I didn't find anything,  I know it's been discussed...
>>
>>
>>
>> My 2000 suv kit came with the cuffs,  the new manuals don't mention
>> them.
>>
>> Some builder sites have pictures of putting them on, some don't.
>>
>>
>>
>> What's the general thought on putting them on?
>>
>>
>>
>> Noel
>>
>>
>>
>> -------------- next part --------------
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>>
>> ------------------------------
>>
>> Message: 5
>> Date: Wed, 25 Mar 2009 11:40:47 -0400
>> From: nmflyer1 at aol.com
>> Subject: Re: REFLECTOR: Elevator cuff
>> To: reflector at tvbf.org
>> Message-ID: <8CB7B7732F914B5-1448-F7F at webmail-mf12.sysops.aol.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>>
>> I've asked about this as well. The consensus I have received back is that 
>> it is best to leave them off. I was told this will lower the stall speed 
>> of the canard. It will also make the "pitch buck" once it does stall more 
>> pronounced. I think I was told that it helps elevator authority when slow 
>> as well.
>>
>>
>>
>> Kurt
>>
>>
>> -----Original Message-----
>> From: gattenby at tulsaconnect.com
>> To: reflector at tvbf.org
>> Sent: Wed, 25 Mar 2009 8:41 am
>> Subject: REFLECTOR: Elevator cuff
>>
>>
>>
>>
>>
>> I've looked through the archives for a while. (any way to do a search?) 
>> for info on the elevator cuffs.
>>
>> I didn't find anything,? I know it's been discussed...
>>
>> ?
>>
>> My 2000 suv kit came with the cuffs,? the new manuals don't mention them.
>>
>> Some builder sites have pictures of putting them on, some don't.
>>
>> ?
>>
>> What's the general thought on putting them on?
>>
>> ?
>>
>> Noel
>>
>> ?
>>
>>
>>
>>
>> _______________________________________________
>> To change your email address, visit 
>> http://www.tvbf.org/mailman/listinfo/reflector
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>> ------------------------------
>>
>> Message: 6
>> Date: Wed, 25 Mar 2009 10:11:03 -0600
>> From: Dennis Martin <dennis.doc at gmail.com>
>> Subject: Re: REFLECTOR: Elevator cuff
>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>> Message-ID:
>> <638df660903250911r1a7ea549jb06aae6bee4eeae8 at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Evidence clearly supports removing the cuff. There is a compromise. Alan
>> Shaw, who built my canard, told me to remove half of the cuff on each
>> elevator. I did that a couple of years ago, so I'll try flying with 50% 
>> cuff
>> and see how it works.
>>
>> Dennis
>>
>> On Wed, Mar 25, 2009 at 9:40 AM, <nmflyer1 at aol.com> wrote:
>>
>>> I've asked about this as well. The consensus I have received back is 
>>> that
>>> it is best to leave them off. I was told this will lower the stall speed 
>>> of
>>> the canard. It will also make the "pitch buck" once it does stall more
>>> pronounced. I think I was told that it helps elevator authority when 
>>> slow as
>>> well.
>>>
>>> Kurt
>>>
>>>
>>> -----Original Message-----
>>> From: gattenby at tulsaconnect.com
>>> To: reflector at tvbf.org
>>> Sent: Wed, 25 Mar 2009 8:41 am
>>> Subject: REFLECTOR: Elevator cuff
>>>
>>>   I've looked through the archives for a while. (any way to do a 
>>> search?)
>>> for info on the elevator cuffs.
>>> I didn't find anything,  I know it's been discussed...
>>>
>>> My 2000 suv kit came with the cuffs,  the new manuals don't mention 
>>> them.
>>> Some builder sites have pictures of putting them on, some don't.
>>>
>>> What's the general thought on putting them on?
>>>
>>> Noel
>>>
>>>
>>> _______________________________________________
>>> To change your email address, visit 
>>> http://www.tvbf.org/mailman/listinfo/reflector
>>>
>>> Visit the gallery!  www.tvbf.org/gallery
>>> user:pw = tvbf:jamaicangoose
>>> Check new archives: www.tvbf.org/pipermail
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>>>
>>>
>>> ------------------------------
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>>>
>>> _______________________________________________
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>>>
>>
>>
>>
>> -- 
>> All the best,
>> Dennis
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>>
>> _______________________________________________
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>>
>> End of Reflector Digest, Vol 58, Issue 52
>> *****************************************
>
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