Well, one of my P2K SD9s started making a lot of noise a few days ago.
One of the guys at the MR club said that it sounded like the gears, so I took apart both gear trucks, cleaned them out and relubed them. It still makes noise, no grinding but more of a buzzing sound.
The other P2K SD9 I have is also starting to make noises. So If I have to go out and buy something, at least I’ll know to get enough to do 2 units.
Anyone knows what causes the buzzing sound I’m hearing? Could it be the motor is worn out?
Sounds to me like you have a motor issue. I have an Athearn AC4400 that did the same thing. The problem was something to do with the shaft bearings. I put in a different motor and the sound went away.
Well, luckily for me I happen to have 2 spare motors that will fit the bill. One is another P2K motor, the other is a BB motor that seems to be farily quiet. Of course I’d be better off with some can motors.
What I don’t get is that they go from running real nice and smooth one day, then after about a few days this starts up.
I could get a video of one if that’d help narrow it down.
Well, the athearn motor’s rods are too thick for the protos flywheel. The other proto motor I couldn’t get the flywheels off.
Faced with that dilemma, I decided to see if I could clean out the motor in question. I did that, disconnected if from the driveshafts and tested it. It ran fine, so I connected the driveshafts; still good, but when I put the wieghts on it, it starts acting up.
Maybe the unit weighs too much for the aging motor, or the flywheels are hitting something. Or could it be the extra weight I put in it that’s causing it? (I put 1 more ounce into it.)
I walkedaway from it last night and though about it a little. I recalled it ran fine without the weights, so I tested it with one of the 2 weights to see what was happening. The rear weight was fine. Turns out the back of the flywheel (towards the motor) was hitting the weight. So I went and filled the weight down a bit. Works fine…
Problem solved, but now what to do with the can motor I bought?