>I'm pretty baffled. My 85' Westfalia waterboxer has been turning over
>slowly since I bought it several years ago, but it has finally got to the
>point of stranding me. It is behaving like a low battery, but I think I
>have ruled that out.
>
>Symptoms:
>Turns over very slowly, sometimes stopping (or catching?)
>Runs fine when started.
>Battery voltage looks good. Jumping doesn't help.
>Voltage at starter matches battery.
>Turns over slowly with:
>    - spark plugs removed.
>    - fresh battery jumpered directly to starter.
>    - WITH NEW STARTER INSTALLED!
>

I'm thinking no one had the heart to break it to me. ITS THE MAIN BEARINGS!

I dropped the engine and vowed to keep removing bolts until I found the
problem. It was taking about ~30 ft-lb to rotate the crank with spark-plugs
out, and still 10 to 20ft-lb with pistons removed. When I split the case, it
was quickly apparent the main bearing were in bad shape. I'm surprised this
motor was running all and should be thankful it got it self home in one
piece.

I am now the proud owner of a precision German jig-saw puzzle, complete with
extra starter motor. Looks like a full rebuild is in order. Or, as my
youngest daughter suggested, we could tow the van around to the back yard
and make a playhouse / spare bedroom out of it.