I see some parts still assembled in that cleaning vat- - - -specifically, an accelerator pump. Not a good idea! Regardless of the cleaning method used, the final procedure is AIR- - - - -lots of it! Every passageway in all the castings needs to be purged with a needle-point blow gun, and massive quantities of compressed air. The cleaning solvent just softens deposits- - - - -air gets the castings clean. A carburetion instructor I had at the General Motors training center in Memphis put it this way- - - -"Put 55 gallons of air through every hole!"
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!