I usually replace the rope seals with the neoprene lip seals. I put them in a little off center so the seals seam doesn't line up with the main cap seam. You won't have to drop the crank that way, I just turn the crank while pushing the seal into place, letting the crank pull it into it's groove.

If you're dead set on using a rope, pre-form the block side using the main cap. Stuff it into the cap until it takes the shape. Also, buy a couple of extras so when you trash one you still have parts on hand,
Scott


Scott Ward

2 1948 1.5-ton Loadmasters
The red one and The snow pusher
1 1950 3100
1 1955.1 Chevy 6500
1 1954 Chevy 6500 2-Ton
1 1955 1st Series COE 5700
1 1963 K20 (454)
1 1964 C10 (350)
1 1951 1.5-ton Dump Truck
1953 and a 1956 Ford F800

Raising a teenager is like trying to nail Jello to a tree!