Hi:
I found a dewalt power washer with a gx200 engine lying in a trash heap. I have one almost identical, so thought I would grab it for parts. Turns out it wasn't it too bad of shape, so thought I would try to bring it back to life. After digging around in it a bit, I discovered the exhaust valve was stuck open. I took the head off and freed up the valve and cleaned things up. But when I put the head back on and tried to install the pushrods (new ones), I discovered one of the pushrods was sticking out further than the other. So took the head off again, looked into the holes where the pushrods go. This is where things are murky as I'm a rookie at this. I'm not sure what's it called (seat, bore.. don't know) but the thing the pushrod sits on (tappet, lifter?) is stuck. If I use a magnet on the intake side, I can move the thingee up and down. The exhaust side wont' move. I did tap it down, so the pushrods are even if I set them in there, but it won't slide freely up and down like the intake valve side. I hope this makes sense. I thought maybe these move when the engine turns, but they don't. Is that correct? So my goal is to loosen this thing up and make it work like the intake side, because there was no rust on the valve or anything else on that side. So right now it is soaking in PB blaster. I assume I do need to get this freed up before re-assembly? Or will it free up when the motor heats up? I should be able to get proper valve clearance now that is is seated down all the way. Any tips on freeing that up (if it needs to be) would be helpful. Otherwise do I need to disassemble motor further?
Thanks everyone. Happy to be part of this forum!
I found a dewalt power washer with a gx200 engine lying in a trash heap. I have one almost identical, so thought I would grab it for parts. Turns out it wasn't it too bad of shape, so thought I would try to bring it back to life. After digging around in it a bit, I discovered the exhaust valve was stuck open. I took the head off and freed up the valve and cleaned things up. But when I put the head back on and tried to install the pushrods (new ones), I discovered one of the pushrods was sticking out further than the other. So took the head off again, looked into the holes where the pushrods go. This is where things are murky as I'm a rookie at this. I'm not sure what's it called (seat, bore.. don't know) but the thing the pushrod sits on (tappet, lifter?) is stuck. If I use a magnet on the intake side, I can move the thingee up and down. The exhaust side wont' move. I did tap it down, so the pushrods are even if I set them in there, but it won't slide freely up and down like the intake valve side. I hope this makes sense. I thought maybe these move when the engine turns, but they don't. Is that correct? So my goal is to loosen this thing up and make it work like the intake side, because there was no rust on the valve or anything else on that side. So right now it is soaking in PB blaster. I assume I do need to get this freed up before re-assembly? Or will it free up when the motor heats up? I should be able to get proper valve clearance now that is is seated down all the way. Any tips on freeing that up (if it needs to be) would be helpful. Otherwise do I need to disassemble motor further?
Thanks everyone. Happy to be part of this forum!