Changing a 75 to an 85 is simple. Change the carb jetting and remark the 
dipstick. You will also have to change or repitch the prop and remark the tach 
Continental will not issue a new data plate however but there are several 
sources where they are available. Starter and gen require no change. From my 
perspective the best move is to replace the innards with 0200 crankshaft ect. 
Major improvment in performance but a bit pricey

Sent from my iPhone

On Jul 25, 2010, at 4:52 PM, "ruben29578" <[email protected]> wrote:

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" <j...@...> 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
> 
> _____ 
> 
> _
>





      

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