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June 7, 2022 at 12:30 pm
#261114
On those 9.9s and 15s from the 1980s to early 1990s, they are the only motors I’ve found where an aftermarket Sierra impeller did not pump at a slow idle to keep the telltale stream going, even when the pump housing was replaced. On the two motors I had this problem with, a factory OEM impeller cured the problem.
Dave