Which reaffirms what has been said many times: every plane and every engine is different. All we accomplish here is to give you ideas of what to try until you find the magic routine for your engine. Dan C
On Aug 5, 2010, at 5:12 PM, Jack Stanton wrote: > > An 85 year old AP/IA at Hampton Road, VA, an expert on all things > Continental, even has over 100 Continental engines in his hangar, stacked up > 3 walls and in several 18 wheeler trailers told me that if the Stromburg carb > was set properly, and the mags are timed properly, never use the primer and > barely crack the throttle. > It works every time for me. The only time I use primer is one shot on a > really cold day. > > I've used this method for over two years. > > Jack > 903-436-0474 cell > > > From: Syd Cohen <[email protected]> > To: [email protected] > Sent: Thu, August 5, 2010 2:10:55 PM > Subject: Re: [ercoupe-tech] How to start an Ercoupe > > > Dave, > > > The Coupe primer DOES NOT put fuel into the carb. It puts fuel into the > intake manifold, above the carb, which is fed into all four cylinders when > the engine is cranked over. Over priming can be dangerous, yes, but one or > two squirts on the primer when the engine is cold will not cause any > problems. NEVER pump the primer more than two times. > > Syd > > > > On Aug 5, 2010, at 1:20 PM, Ronin Sensei wrote: > >> >> Hooooo Kaaaay, >> This can turn into a dissertation, but I thought it was interesting, so >> maybe you will, too. This is what I believe I have learned. >> >> 1. The Ercoupe with Stromberg carb needed a primer for starting because the >> Stromberg has no accelerator pump. (The Marvel carb does, in contrast, have >> an accelerator pump.) >> 2. On aircraft having a carb that includes an accelerator pump, pumping the >> throttle is a popular but dangerous way to start an engine because it puts >> excess fuel in the carb where it can cause an engine fire. The safer way to >> do it on, for example, a Cessna-152 is to use the primer because the primer >> puts fuel DIRECTLY INTO A CYLINDER, thereby bypassing the carb. >> 3. HOWEVER, the Coupe primer does NOT put fuel in the cylinder. It squirts >> it into the carb, just like the accelerator pump. (I learned this when I >> paid to have my primer, which had been cut and crimped, re-installed. They >> did this when they replaced the Stromberg carb with a Marvel carb. But, I >> felt it was dangerous so I undid the primer change. That's when I learned >> that the primer goes to the carb, not the cylinder, just like the >> accelerator pump on the throttle.) >> 4. SO, on a Coupe use of the primer and use of the carb accelerator pump >> are both hazardous. >> 5. I am going to try using the primer ONLY while the prop is turning, as I >> see is advised by one member. >> >> Anybody see any errors in this summary? >> Dave Winters >> >> To: ercoupe-tech@ yahoogroups. com >> From: [email protected] >> Date: Thu, 5 Aug 2010 13:20:14 +0000 >> Subject: [ercoupe-tech] How to start an Ercoupe >> >> >> At Oshkosh during the Ercoupe maintenance session the best method of >> starting a Coupe was described as: slow back when pulling primer out; push >> in more rapidly; slow back again; engage starter and push in primer >> simultaneously. Works every time so they say (I haven't tried it yet). I had >> been told that pushing in the throttle once would help but the consensus at >> Oshkosh was that it would be useless. Don't disagree but can anyone tell me >> what using the throttle during the start does? >> >> Mac McMahon >> N94184 >> VKX Friendly, MD >> >> >> > > > >
