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You may have been able to get by without a primer in San Diego but where you are now you will definitely need to install one. Kevin -----Original Message----- From: Tim and Martha Briggs [mailto:[EMAIL PROTECTED] Sent: Sunday, January 09, 2005 12:00 PM To: [email protected] Subject: [COUPERS-FLYIN] Cold Weather Starting Advice ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- Ercoupers: My Coupe has the O-200 engine with a Marvel Schebler Carburetor. The plane has no primer. Yesterday, I tried to go flying and really had a hard time starting the engine. My normal start procedure has me "prime" with 2-4 pumps on the throttle before cranking. It always started right up on the first pull in temps down to 45 degrees F. Yesterday, it was about 15-20 degrees outside. I turned it over by hand for a while before cranking to loosen things up. We tried for over an hour, quickly needing needing a jump from a start cart. I eventually got her going by pumping the throttle vigorously as I cranked and then taking it back to idle position. It sounded like a radial starting with a pop here then one or two more. Eventually it lit off and ran OK from then on although the transition from idle to full power had to be done slowly or it stumbled. I never did get airborne, by the time I got her running, I was too cold and it was getting late. Warm restarts were instantaneous. Known conditions: 1. I just had it annualed, the plugs were cleaned and a few replaced. 2. It had one flight since the annual. It started right up on that one flight, being pulled from a warm hangar. 3. My current hangar is unheated. The plane sat for 2 weeks in temps down to -5F Questions: 1. Pumping the throttle causes the accelerator pump to shoot gas into the carb throat. After shutting down, there was a puddle of gas on the ground. I fear that I'm risking a fire with all that pumping but that was the only way she would light off. Is there anything else I can do to "prime" without a primer?? 2. In reading up on the Marvel Schebler carb, I see there is an idle mixture screw. Would any adjustments to this help the transition from idle to high power in cold temps? Unless you advance very slowly, the engine stumbles. 3. The engine's behavior reminds me of trying to start my old Buick in the cold when the choke didn't work. Is there any way to "choke" the carb or install a manual choke on a Marvel Schebler carb? Any advice would be appreciated. Thanks. Tim Briggs 1950 Erco 415G N94413 ========================================================================== == == To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/ ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/
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