Digging into the Guzzi part IV - end

Had some time to completely finish stripping the Guzzi this morning, what a beautiful machine.

The brass drain plug was super seized. I tried using an impact gun on it, but all that did was round out the head. Next I ground down the edges to use my long 19mm wrench on it, and that couldn't break it. Since I'm going to be getting a new plug anyway and I needed the oil out, I drilled right through, drained the oil, and will be dealing with that plug later.

Sludgy...

Oil strainer, feed lines, and pump. Looking pretty clean.

 Oil pump gears look good too, but I'll still need to measure the lash to make sure it's still in spec.

Con-rod bearings. No scoring I can feel with my fingertips, but don't look fantastic either. I foresee Plastigauge in my future and possibly new bearings.

Cam and lifters look to be in great shape, not pitting or scoring.

Rear crankshaft bearing removal

The crank looks to be in excellent shape, webbing and pins show no scoring or visible wear

Sludge trap, and the reason I did all this work. Don't have time to open it up and clean it out today, so to be continued on whether or not the complete tear down was worth it.

Engine internals, it looks like there's a lot more than there really is

Next up is the eventual sludge trap cleaning, cylinder Nikasil plating, head cleanup and eventual reassembly.

Digging into the Guzzi part II

I began disassembling the top end in anticipation for bottom end removal to access the sludge trap. So far everything I've seen confirms that this bike had a lot of work done to it in the 70's and then sat for 40 years, but there wasn't any mention of sludge trap cleaning on the receipt (just oil pan cleaning and oil pressure checking) and the wear on the rear drive makes me doubt this bike is only a 19k bike.

Ready for tear down

Bad shot of the crank and lifters. What you can't see if that everything looks super clean and fresh. When I pulled the lifters out there was absolutely no wear on them (I believe they were replaced when this bike last received service), cam also showed no pitting or marking. There was some side to side play at the connecting rods, but I'll have to see what's acceptable in the Guzzi world, by BMW standards this is way out of spec.

After a half hour, this is as far as I got. It looks like I'll need to fabricate special tools to proceed with the generator drive pulley and clutch/flywheel removal.

Generator bracket. I guess I'll need to weld this back together. I guess the previous owner didn't know when to stop tightening the upper clamp...

All wrapped up until next time.