Hello,
New to boating this summer! Been amazing!
I purchased my first boat last November from an employee. A brand new to me 1992 Bayliner Capri with a 4.3l 2bbl with a Alpha one Gen 2 outdrive for $600. I had a lot of work ahead of me. I Discovered the boat had been left through 2 winters with water in the block. I removed the engine from the boat and inspected the block inside and out. Lucked out, no cracks, replaced the exhaust manifolds and plugged the block. Cleaned out the engine compartment, inspected all the mechanics leading to the outdrive, placed engine back. Replaced the gimbal bearing, and bellows. Rebuilt the outdrive with all new 1.81:1 ratio gears. Impeller was in great shape on the outdrive so I cleaned and reinserted. Did some floor work and added a new Bimini top for the kids to escape the terrors of the sun!
When the boating season started we took it out on our first trip! ?Great success! I have filled the tank 7 times with 90 100% gasohol! Then there was our last voyage 2 weekends ago. We spent the entire day with no problems, did some tubing, cruising on the grand river out to lake Michigan, and just being plain lazy!
On our trip back I started to get all kinds of alarming gauge readings. My tach started getting sticky, my mph gauge quit working, my temp went from 155 to 185-190 range, my battery gauge was reading over 18volts, oil pressure was around 75. I backed off from 80% throttle to 60% keeping it at plane. I approached the last 300 yards of our trip and had to drop throttle for a no wake zone. That when the motor just shut off! I pulled the cover and the top exhaust manifolds were unusually hot.
I checked oil and the reset switch while I was under the engine cover. Everything was ok for the most part. Attempted to start the motor and it tried but failure. Lucky the boaters in Michigan have all been in this spot and one towed me to the docks.
I inspected the impeller again it was fine. Oil was full and in good shape. Oil pressure sending unit is functional. Starter and all wires leading from are intact. Fuel pump is functioning with jumpers.
I have not tested the alternator yet. Battery was good and hot when I hooked to charger/tester.
I have read (in these very forums!) That this style fuel loop electrical system uses the starter to prime the pump while turning over. Then as long as there is oil pressure it will continue to run the pump when started. When inspecting the oil pressure sending unit, it does not share a tee with any switches that would preform that action. Would the alternator share responsibility for running the pump when cranking? The wire on the fuel pump is purple/yellow. I Have a wire coming from the alternator sharing that wire. The wire on the oil pressure sending unit has that wire as well. I read the starter has something to do with that, but that's not the case here. I discovered another purple/yellow wire leading off the harness to a wire crimp, but the end was cut previously. It was not a fresh cut! I checked all fuses as well. everything looks great, other than the fact I cannot get the fuel pump to run for the life of me! Am I over looking something?
Sorry for the long post. Just wanted to cover all angles!
New to boating this summer! Been amazing!
I purchased my first boat last November from an employee. A brand new to me 1992 Bayliner Capri with a 4.3l 2bbl with a Alpha one Gen 2 outdrive for $600. I had a lot of work ahead of me. I Discovered the boat had been left through 2 winters with water in the block. I removed the engine from the boat and inspected the block inside and out. Lucked out, no cracks, replaced the exhaust manifolds and plugged the block. Cleaned out the engine compartment, inspected all the mechanics leading to the outdrive, placed engine back. Replaced the gimbal bearing, and bellows. Rebuilt the outdrive with all new 1.81:1 ratio gears. Impeller was in great shape on the outdrive so I cleaned and reinserted. Did some floor work and added a new Bimini top for the kids to escape the terrors of the sun!
When the boating season started we took it out on our first trip! ?Great success! I have filled the tank 7 times with 90 100% gasohol! Then there was our last voyage 2 weekends ago. We spent the entire day with no problems, did some tubing, cruising on the grand river out to lake Michigan, and just being plain lazy!
On our trip back I started to get all kinds of alarming gauge readings. My tach started getting sticky, my mph gauge quit working, my temp went from 155 to 185-190 range, my battery gauge was reading over 18volts, oil pressure was around 75. I backed off from 80% throttle to 60% keeping it at plane. I approached the last 300 yards of our trip and had to drop throttle for a no wake zone. That when the motor just shut off! I pulled the cover and the top exhaust manifolds were unusually hot.
I checked oil and the reset switch while I was under the engine cover. Everything was ok for the most part. Attempted to start the motor and it tried but failure. Lucky the boaters in Michigan have all been in this spot and one towed me to the docks.
I inspected the impeller again it was fine. Oil was full and in good shape. Oil pressure sending unit is functional. Starter and all wires leading from are intact. Fuel pump is functioning with jumpers.
I have not tested the alternator yet. Battery was good and hot when I hooked to charger/tester.
I have read (in these very forums!) That this style fuel loop electrical system uses the starter to prime the pump while turning over. Then as long as there is oil pressure it will continue to run the pump when started. When inspecting the oil pressure sending unit, it does not share a tee with any switches that would preform that action. Would the alternator share responsibility for running the pump when cranking? The wire on the fuel pump is purple/yellow. I Have a wire coming from the alternator sharing that wire. The wire on the oil pressure sending unit has that wire as well. I read the starter has something to do with that, but that's not the case here. I discovered another purple/yellow wire leading off the harness to a wire crimp, but the end was cut previously. It was not a fresh cut! I checked all fuses as well. everything looks great, other than the fact I cannot get the fuel pump to run for the life of me! Am I over looking something?
Sorry for the long post. Just wanted to cover all angles!