Hi there!
Would appreciate your opinion on the following problem:
Last Sunday took the boat for a ride.
It started and idled ok and reved up to 2000 ok. However when the throttle was pushed forward to accelerate, the engine would not, meaning that the other 2 cylinders would not fire up. Had some occasional kicks and attempts to rev up but nothing.
Anyhow, kept revs up to 2000 and then noticed smoke coming out of the top cowling. Opened it and seen that the oil tank was covered with grey soot meaning that something was burning under the cowling.
Left it for a bit to vent, then re-started in order to reach back to shore. The engine was working erraticaly and was vibrating and I believe that eventually only 1 cylinder left working. (stator feeds CDMs for spark ignition, however melted stator wires as described below possibly affected that-so only 1 cylinder left working. )
Anyway, took the boat out of the water and after a thorough inspection noticed the following problems:
1. The stator wires have melted at the connectors
2. Couple of the trigger coil wires have melted at the connectors
3. Below of the above wires and behing the oil tank there is a fuel line coming from the accelerator pump feeding cylinders 3 and 4 (correct me if I am wrong). This line has an inline filter (as told me from the local Merc store) which was also found with signs of burns as well as a small hole from which fuel was spraying everytime the priming bulb was squeezed. The strange thing with this is that this hole is precise in shape which makes me doubt if this has been caused by the burns on the filter casing. These burns I believe that have been caused by the melting insulation from the wires above dripping on to the filter.
The two scenarios in my head are:
1. There was a failure (hole) at the filter resulting in fuel being sprayed over the wires and at some instance from the heat or a spark, an ignition occured resulting in melted wires and insulation.
2. The reverse of the above scenario happened. There was an electrical problem causing the wires of the stator and trigger coils to melt, the melting insulation dripped on to the filter below and somehow made this fine hole, causing fuel to leak thus not feeding cylinders 3 and 4.
Just to mention that stator is 16 Amp output with voltage regulator (found intact). Two lead/acid batteries onboard wired thorough the "Blueaseas ACR system"
Check stator for ground continuity but not found. Check its Ohms and found 0.2-0.3. Checked continuity between stator Y-Y and found ok.
Any ideas or suggestions regarding the source of the problem?
Thanks
Cotsios
Would appreciate your opinion on the following problem:
Last Sunday took the boat for a ride.
It started and idled ok and reved up to 2000 ok. However when the throttle was pushed forward to accelerate, the engine would not, meaning that the other 2 cylinders would not fire up. Had some occasional kicks and attempts to rev up but nothing.
Anyhow, kept revs up to 2000 and then noticed smoke coming out of the top cowling. Opened it and seen that the oil tank was covered with grey soot meaning that something was burning under the cowling.
Left it for a bit to vent, then re-started in order to reach back to shore. The engine was working erraticaly and was vibrating and I believe that eventually only 1 cylinder left working. (stator feeds CDMs for spark ignition, however melted stator wires as described below possibly affected that-so only 1 cylinder left working. )
Anyway, took the boat out of the water and after a thorough inspection noticed the following problems:
1. The stator wires have melted at the connectors
2. Couple of the trigger coil wires have melted at the connectors
3. Below of the above wires and behing the oil tank there is a fuel line coming from the accelerator pump feeding cylinders 3 and 4 (correct me if I am wrong). This line has an inline filter (as told me from the local Merc store) which was also found with signs of burns as well as a small hole from which fuel was spraying everytime the priming bulb was squeezed. The strange thing with this is that this hole is precise in shape which makes me doubt if this has been caused by the burns on the filter casing. These burns I believe that have been caused by the melting insulation from the wires above dripping on to the filter.
The two scenarios in my head are:
1. There was a failure (hole) at the filter resulting in fuel being sprayed over the wires and at some instance from the heat or a spark, an ignition occured resulting in melted wires and insulation.
2. The reverse of the above scenario happened. There was an electrical problem causing the wires of the stator and trigger coils to melt, the melting insulation dripped on to the filter below and somehow made this fine hole, causing fuel to leak thus not feeding cylinders 3 and 4.
Just to mention that stator is 16 Amp output with voltage regulator (found intact). Two lead/acid batteries onboard wired thorough the "Blueaseas ACR system"
Check stator for ground continuity but not found. Check its Ohms and found 0.2-0.3. Checked continuity between stator Y-Y and found ok.
Any ideas or suggestions regarding the source of the problem?
Thanks
Cotsios