The crankshaft has to be positioned so the bottom of the cap can be tilted toward the back. It's a close fit, but it can be done.

Check the photo on page 1 of this thread showing the position of the crankshaft:

https://www.stovebolt.com/ubbthread...1/horrible-sound-from-my-261-part-2.html

As a last resort, unbolt the front motor mount and jack the engine up a little.
Jerry


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