Yes, I've seen them before, but like you said, I don't see much advantage
for a Yanmar GMF.

Scotty


"Jeff Morris" wrote in message
...
The Speed Seal doesn't use two of the holes. There are 4 knurled screws,
and
two are in slots, so you remove two, loosen the other two, and the cover
slides
off. Instead of the paper gasket there's an O-ring that's held in a
groove.
Once you have access to the pump, it only takes about 10 seconds to pull
the
plate and see the impeller. Putting it back on is more tedious: maybe 30
seconds to make sure the thumb screws are tightened evenly.


"Scott Vernon" wrote in message
...

"Marc" wrote in message
...
2 things. first , get a speed seal pump cover. 4 knurled thumb screws
and the cover comes off, no tools.


But there's six screws.