Right-front
After much lurking on Craigslist I've procured another complete engine. It came attached to a more or less complete motorcycle.
1980 CX500 "Custom"
Looks to have been dropped at a low speed, probably high side get-off. I suspect that the engine was running fine when this occured and the right hand controls and pushed in case guard were never repaired.
The guy I got it from got it thrown in to a scrap metal deal. It was stored in a basement. Prior to that, it was stored outdoors by a former owner, who I suspect, was the person who dropped it/last had it running.
Last registration sticker is dated 1996.
I dropped the engine after dinner and got it moved under my tarp shelter. Top end looks to have had water exposure (looking down the exhaust ports at the valves.) We'll see what the cylinders look like when I pull the heads. I'm hopeful that this engine won't require much more than a new timing chain, mechanical seal and some gaskets. If it turns out to need new valves and valve guides I suppose that won't be a huge issue.
Right-front
Right-front
Left-rear
Left-front
Left engine
Left carb
Left battery box area
Left brake & wheel
Right final drive & wheel
Right airbox
Right carb
Right engine
Right front
Right rear
Right
Front
Rear
Gear Holder (top) and Clutch Center Holder (bottom)
A drill press and hand files...
Think thats coming off?
I spent hours shaping that damn tooth.
Oh for a mill (and a lathe).
Flywheel removed.
Flywheel puller tool still installed.
Back side of flywheel showing starter idler gear.
Cam chain and flywheel taper of crank.
Cam chain. Should not be this streched.
Notice worn away areas on the left where cam chain ground away at the block.
Cam chain guide and tensioner.
Oil pump.
Right rod bearings.
Right rod bearings.
Right rod bearings.
Right rod end.
Right rod end.
Right piston.
Right piston.
Left rod bearings.
Left rod bearings.
Left piston.
Left piston.
Looking down left cylinder bore.
Looking down right cylinder bore.
Debris in the pan behind where the oil pump sits.
Rod cap access port for right cylinder.
Oil pump removed.
Clutch lifter plate and springs removed.
Getting the engine unseized.
Engine dropped!
Only 5 bolts hold the engine to the frame.
The rear exhaust mounts share a hardpoint with the rear footpegs.
Its easier to remove the footpegs rather than remove the mounting plate.
Alternator & crank signal wires bottom center of the engine.
Starter hot lead to the left.
Between the cylinders, behind the heat shield are the connectors for the oil pressure switch and temperature.
To the right of the stator cover is the wire for the neutral indicator switch.
The difference in appearance between the left and the right cylinder heads isn't just lighting -- the right head is newer.
Rear of the engine block.
Right cylinder head & valve rocker assembly.
Facing intake port.
Left cylinder head & valve rocker assembly.
Exhaust port facing left.
Inside the rear cover.
See all the nasty chips and sludge?
Rounded brass nub in lower left is the neutral switch.
Valve covers, clutch housing, front cover.
Oil filter housing peeking out from the bottom of the pile.
Left cylinder & piston.
Some scoring on the cylinder wall right above piston?
Left cylinder.
Left cylinder.
Left cylinder.
Right cylinder.
Right cylinder.
Right cylinder.
Right cylinder.
Right cylinder.
Front of engine.
Cooling fan taper on camshaft visible top center.
Clutch.
What is with the crazy split gear driving the oil pump chain?
Oil pump and oil pump drive chain, sprokets.
Attempting to look past the oil pump up towards the crank.
Looking past the oil pump pickup line.
Camshaft in there somewhere.
Looking for camshaft, other side.
Left cylinder head.
Right cylinder head.
Heads, right on left, left on right.
Left head.
Right head.
