So a long time ago I ran an engine dry (oil filter came loose). I replaced the engine, but kept it. This fall, it happened again (to engine number two).
This winter I rebuilt it with a new 161 kit. Everything inside (connecting rod) feels good - smooth and not sloppy.
Yesterday I pulled engine two (picture of naked Buddy to come). This wasn't as hard as I thought it would be.
Today I pulled off the cylinder on engine 2. The top end is loose, the bottom end of the rod is sloppy and "crunchy". It's totally shot. I'm going to continue my "exploratory surgery".
Anachronism wrote:You've lost two engines to loose oil filters?
Maybe "hand tight" means a bit tighter than you think it does...
Anyways, yes, tearing apart engines can be fun, if sad.
Buddy oil filters need to be cranked on tight. Almost uncomfortably tight.
Prima pipe
UNI filter
125 Main Jet
2000RPM Stall Spring
1500RPM Clutch Springs
Dr. Pulley Variator with 11 Gram Sliders
NCY Front Forks
Prima/NCY 161cc Big Bore kit With 150 Head
KS Power GY6 Performance Springs
NCY Secondary Shieve
Anachronism wrote:You've lost two engines to loose oil filters?
Maybe "hand tight" means a bit tighter than you think it does...
Anyways, yes, tearing apart engines can be fun, if sad.
I don't want to talk about the past.
I pulled off the part of the case under the stator. The oil I found was a sparkily dark gray. There's even a few small chunks! Engine 2 died a slow and painful death. *
There is a large gear that is connected to the starter gear. This gear only drives the engine in one direction. How do I remove this so I can split the case open?
* Engine 1 didn't die - it passed out. I revived it with some fresh oil, but it had a metallic rattle thereafter. My hope is that this was cured by replacing the top end. Everything in the bottom end appeared OK.
JettaKnight wrote:I couldn't figure out how to get the locknut off, so I removed all the bolts I could then beat on it with a mallet till the case split.
Not sure if it's the right way, but it sure was fun.
There's metal bits everywhere. The rod bearing is shredded.
So, remember - check your oil regularly.
