Home › Forum › Ask A Member › 1989/1976 9.9 OMC fuel pump issues › Re: 1989/1976 9.9 OMC fuel pump issues
Well, there may in fact be quality control problem at BRP if a few of the new pumps you have bought have the same leak…I’m assuming you haven’t had any problems with the Sierra pumps that ME.com has replaced the bad BRP pumps with. It is hard to know whether this is a current BRP issue, or perhaps ME.com has some old stock and the problem has since been corrected.
The larger style pump will certainly work on your 9.9, but is a pain to plumb in…You have to run the pulse line from the stbd side (where the original small pump was mounted) over to the port side where the larger pump is mounted on a bracket.
There was a bit of a design change in those small pumps used on the 9.9/15s through the years. The original style pumps had an outlet that faced about 10:00, the little fuel line made a big loop over the exhaust cover and went back up to the carb. The later style pumps had an outlet that faced about 7:00, the fuel line just faced downward then looped back forward to the carb. Either style pump will work on any of the engines, but you would have to get a longer fuel line to use the older style pump on a newer engine.