Grabbed an hour this afternoon and tackled the next two dis-assembly steps.
This is the harmonic balancer. It is mounted on the end of the crankshaft by a press (interference fit) and secured in place with a large diameter bolt and special concave washer:
First I removed the bolt using a 3/4 inch socket on a 1/2 inch ratchet:
Here you can see how it mounts to the crankshaft.... a very tight fit:
The proper way to remove the harmonic balancer to prevent damaging it or the crank is to use a harmonic balancer removal tool (kinda ironic!) I've been talking this project over with a co-worker who offered to lend me his removal tool:
The bolts that came with his tool were the wrong diameter, so I dug through my inventory to find the correct pulley bolts that would normally be in the threaded pulley holes on the face of the balancer. The tool is attached to the face of the balancer (after I sprayed the mounting hole with PB Blaster):
Carefully turning the centre bolt of the tool pulls the balancer off the crankshaft end:
Slick as goose-poop, off it came. Sure nice have the correct tools to do the job!
With the harmonic balancer off (it will be sent for rebuild), I can now access the bolts and nuts that hold the rear oil case on. More PB Blaster and out they come:
With the bolts and nuts removed, all it should take is a bit of gentle tugging to remove the rear oil case from the block, however, this is as far as I could get it to go:
I grabbed some scrap baseboard trim from my shop and cut it into several wedges:
Tapping the wedges in between the block and rear oil case allowed me to remove it without damaging either. Once clear of the alignment pins, it slid off the rest of the way easily:
Like the other items on this core, the rear oil case is extremely clean already. This will be an excellent core exchange for my conversion:
Here you can see the end of the crankshaft, the distributor drive gear (also turns the oil pump gears) and fuel pump eccentric ring:
Getting closer and closer to having the engine completely apart. Next up, buy my buddy from work a beer for lending me his harmonic balancer puller.... then to split the engine block and remove the crank and camshaft!
Time until takeoff
Husband, father and 911 dispatcher. Long time pilot with a licence that burns a hole in my pocket where my student loan money used to be. First time aircraft builder. Looking to fly my own airplane.