jeff winter
Cadet
- Joined
- Jun 15, 2006
- Messages
- 19
Nothing like a problem while youre thousands of miles away from home on vacation......<br />started out with a lazy cylinder...only firing on one cylinder on start-up......then firing as I coaxed the throttle on.......... then miles from no where the battery went totally dead....got a jump from the only boat within miles........ then as I was running for home at a reduced throttle the engine seemed to fire both cylinders at once that sounded like I hit a submerged log........like bang......the engine shuttered big time but kept running. Later back at the dock the engine refused to start on both cylinders....only the bottom cylinder fired and as much as I cleaned the plugs, checked for shorted wires etc I came to the conclusion that Ihad a bad coil on the non firing cylinder. Luckily a local repairshop had the coil and they replaced it and on my way I went. Not the end of the story......... Now every once in a while the engine again bang/surges (which is like hitting the engine with a sledge hammer). If the engine is idling the engine goes dead emmediately but will continue to run at a higher engine speeds. Now the fun part. As veteran auto mechanic i can tell you this bang/surge event is NOT good on the engine. Now I have a rattle in the engine that I know is not good nor will it heal itself. Im thinking that a wrist pin or bearing is damageddue to the sledgehammer effect Im hearing. In fact the engine will rattle to a stop if I push it too hard. Im going to open the engine and look around . <br /> Does this bang/hammer surge indicate a problem in the charging system?? It feels as though there is a giant electrical flash-over or arching that fires both cylinders at the same time ....totally outof sequence which puts an enormous strain on pistons,wrist pins and crank. Im in the belief that this coil problem/ charging failure is the root of the whole mess. Does this sound familiar to anyone and what was the ultimate cure??<br /> Sorry for the long description but I am hoping that someone can shed a bit of light and point me in the right direction. Thanks for your help!
They are very simple Im sure but Im just not familiar the electronics and the associated charging system. The engine ran ( or did run ) extremely well with quick start-up and never a charging problem. The engine has been an extremely smooth and reliable unit up til this lazy cylinder thing started and all hell broke loose. It is definately an electrical problem...........of that Im convinced. This kick-back/lock-up phenominon is a major event and Im afraid its done internal damage. I keep harping on my drivers to stop before its a major blow-up. In this case its relatively cheap compared to our qualifier engines. $$$!!!! That being said ......it pretty much puts the screws to a quiet northwoods vacation trip. :-(<br />Keep the thinking caps on guys, I really appreciate your thoughts.