Hey everyone,
I've been working on this engine for years on and off in my freetime, and I'm learning as I go. Yes, years. Every time I make progress, I run into another problem, but i'm not stopping until my engine is purring.
Heres the current problem. When I try to start the engine my starter spins, and turns the flywheel, but doesn't turn it very quickly. It turns about 3/4 of a full rotation, then struggles to go the last 1/4 of the way (I guess because its harder to turn as the pistons are compressing) and then the cycle starts again. I've recognized the problem as a voltage drop, and in troubleshooting i've replace my battery, battery cables, and starter solenoid.
Before those replacements, I was getting a drop of about 12.6 v down to 8ish volts upon turning the key, and with each subsequent replacement and cleaning of wires over time, the voltage would inch up by half a volt of so. I'm now at about 9.8v. I'm measuring this voltage at the starter solenoid on the post the battery is connected to. For the life of me I can't figure out what is causing the drop. Every component up to the point im measuring is new.
Could it be the other wires that are connected to the starter solenoid? Theres the wire that sends the starting signal to the post the battery is connected to, theres a wire (called the interlock switch wire apparently) thats on a side post, and theres the cable that goes to the starter itself. Theres a tiny bit of corrosion on the starter cable, but it doesn't seem too bad and I was thinking it couldn't be the problem because I was testing the flow before the current reached that point. Now I'm starting to be more suspicious of that thought. If its not that, does anyone have any thought as to what it could be? (Also I forgot to mention that the starter itself is new as well.)
I've been working on this engine for years on and off in my freetime, and I'm learning as I go. Yes, years. Every time I make progress, I run into another problem, but i'm not stopping until my engine is purring.
Heres the current problem. When I try to start the engine my starter spins, and turns the flywheel, but doesn't turn it very quickly. It turns about 3/4 of a full rotation, then struggles to go the last 1/4 of the way (I guess because its harder to turn as the pistons are compressing) and then the cycle starts again. I've recognized the problem as a voltage drop, and in troubleshooting i've replace my battery, battery cables, and starter solenoid.
Before those replacements, I was getting a drop of about 12.6 v down to 8ish volts upon turning the key, and with each subsequent replacement and cleaning of wires over time, the voltage would inch up by half a volt of so. I'm now at about 9.8v. I'm measuring this voltage at the starter solenoid on the post the battery is connected to. For the life of me I can't figure out what is causing the drop. Every component up to the point im measuring is new.
Could it be the other wires that are connected to the starter solenoid? Theres the wire that sends the starting signal to the post the battery is connected to, theres a wire (called the interlock switch wire apparently) thats on a side post, and theres the cable that goes to the starter itself. Theres a tiny bit of corrosion on the starter cable, but it doesn't seem too bad and I was thinking it couldn't be the problem because I was testing the flow before the current reached that point. Now I'm starting to be more suspicious of that thought. If its not that, does anyone have any thought as to what it could be? (Also I forgot to mention that the starter itself is new as well.)