Hmmmm...... well now I are curious about aftermarket pump quality. LOTS of variables, but IF aftermarket pump commutators wear faster than those on an OEM pump, would also the armature bushings? Would this cause a cavitation like noise? (affect roller position, armature rubbing on housing?) Neil. On Tue, Jul 23, 2013 at 2:30 PM, Project Pat <psdooley@verizon.net> wrote: > I've seen my fair share of dissected CIS pumps with the same commutator > wear. Most of those pumps still worked but were noisy. >
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