If it is a C or CD then the TCDS is A-718 and there is no note 4. The baffles are only required for certain propellers.
Kevin1 --- In [email protected], Bill BIGGS <webacr...@...> wrote: > > > Ruben, > > > > Technically you are correct, but I think you are misinterpreting the notes. > When it says eligible on C75-12 and 12F I believe that means as apposed to -8 > engines without pads for generator or starter. > > > I believe a look at TCDS 787 makes it clear, and does not specify a starter > or generator. It also specifies the additional baffels needed in note 4. > > > > Then again, just because it seems obvious to us, the FAA is the final say. > > > > That being said, you might want to get a previous 337 on this conversion as > "approved data", or best of all, have your IA send a "before the fact" 337 to > your friendly FSDO to review and give preliminary approval before you do the > actual work. > > > > Bill > > A&P-IA > > > > > > > To: [email protected] > From: harrylfran...@... > Date: Mon, 26 Jul 2010 09:34:59 -0700 > Subject: Re: [ercoupe-tech] Re: Eb\ngine oil, Vacuum pumps et al > > > > > > > > > > > > > > From: ruben29578 <ruben29...@...> > To: [email protected] > Sent: Sun, July 25, 2010 4:52:03 PM > Subject: [ercoupe-tech] Re: Eb\ngine oil, Vacuum pumps et al > > > > Ok I know it is an old topic, but I am restoring an Ercoupe and would like to > convert the C75 to a C85, the SB M47-16 does not state anything about the > starter and generator. > The TCDS of the plane tels you the starter and generator are no longer > allowed, i.a.w. note 308 and 107. The TCDS of the plane does, as far as I can > see, not give any replacement P/N for both. > The TCDS of the engine states the same starter P/N for both engines. > Also the P/N of the generator is useable on both engines i.a.w. the engine > TCDS although, if I had to change it, I would go for more capacity or > probably an alternator. > > I am studying to be an A&P, only have the practical exam to go, but even I am > lost here. > > Who can help me out? > > Ruben > > --- In [email protected], "John Cooper" <john@> wrote: > > > > > > Question: If your 415C "under TCDS A-718" is converted to a C-85 is the > > starter still legal? > > > > Good catch! Read on, and you'll see the generator has to come off also! ;) > > > > > > > > John Cooper > > > > Skyport Services > > > > 518 797-3064 > > > > www.skyportservices.net > > > > _____ > > > > _ > > > > > > HI, > > > > The first coupes did not have starters or generatorss, but most all later > models, after 1940 did come equiped with both... Delco units, similar to > auto generators. The earliest Gen were 13 amp, later changed to 25, then 35 > amps...all approved for C-75 or 85 and 90 engines. > > > > With the curent electronics... transistors, etc, I sdee no need for the > change to an alternator --about $1000+, plus sawing off the shaft on the > accessory case to utilize an alternator.... Only advantaagfe I see is the > re-charging of a weak battery at Idle speweed. And as you know, one sdhould > not let an air cooled engine sit lone at idle. > > > > The Delco units can be rebuilt with standard Delco brushes, etc.... > > > > The one change I might consider is the repplacement of the Delco regulartoer > with a solid state device.....BUT, mine is still operational, works fine > still for the time I have owned N93530...since 1982. :) > > > > Have Fun - Fly Safe > > > > regards, > > > > Harry Francis > > > > > > > _________________________________________________________________ > Hotmail is redefining busy with tools for the New Busy. Get more from your > inbox. > http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_2 >
