Once again great responses!
Folks, thanks for all the inputs, I really appreciate it. This site is such a great thing for we Ericson owners, and sailors in general. I get the feeling most of you like your A4s and don't think I should perform this heart transplant. While I really pretty much agree with everything that has been shared, there is always a "yes, but."
My A4 was "rebuilt" a few years before I bought my boat by a previous owner. An owner project with some buddies and LOTS of beer, I am told by those who witnessed it. According to folks who know the boat, it never ran reliably since. I went to the Moyer A4 clinic last fall, and learned a lot. I have put a new carb, electric fuel pump, electronic ignition, and the new water pump on the A4. It still barely runs. It has developed a very major aversion to bringing in cooling water, which makes for some interesting times. I am afraid something serious might be wrong internally, and to rebuild it at Moyer will run me about $4,500.00-5,000.00, plus the costs of yanking it out and putting it back in. This on a 1977 27 footer? The way work is for me I have virtually no spare time, what little time I do have I don''t want to spend like this past 4th of July weekend with my head in the engine bay all 3 days sweating and cursing. Or spending literally MONTHS rebuilding an A4. And not sailing.
I understand and agree with the "it's a sailboat" concept, but where I sail, tidal mid Potomac, and where my slip is and how it is oriented, plus the fact there is barely enough water to float a 4 foot draft boat in the very middle of the (unmarked) channel running to my marina at high tide, much less low tide, sailing her in and out is far more tedious than I want to take on. This is supposed to be my relaxation outlet. Running a slalom course thru a zillion crab pots in 3 1/2 feet of water with iffy and variable winds, motor boats flying past on both sides, is not relaxing. At least not to me.
I also understand the down-sides of outboards. I had a nice Mercury 2 stroke 9.9 remote/electric start on my Hunter 25. Cavitation, prop lifting out of the water in a good swell, noise, smell, etc., etc are all acknowledged and encountered issues. But it ran. And if I needed it to get tuned or fixed, I pulled into the slip stern to, pulled it off, put it in the pickup and took it to the Mercury dealer. The mechanics I have talked to in the yards around my marina hear "sailboat" and start shaking their heads. The 4 cycle Yamaha hi thrusts are supposed to be quiet, powerful, really good for sailboats, and reliable. They are also available with a 25" foot, which should allow the prop to get pretty far beneath the waterline. Did I mention reliable? With remote and electric start I think I can get the motor for about $2,500.00. Truly my plan includes hanging on to the A4 and maybe, just maybe, rebuilding it myself over time, or if I hit Power Ball have Don Moyer do it for me.
But the First Mate has decreed that this year we sail, or the boat goes bye bye. And I agree with her. And the most expedient, cost effective way to do that is with an outboard. So, assuming that I am going to go ahead with this, please chime in with tips, thoughts, etc. on how best to go about it. I assume I ought to 'glas in the backing plate? Any and all inputs are appreciated.
Bryan Howell