JoLin
Vice Admiral
- Joined
- Aug 18, 2007
- Messages
- 5,146
Re: 98 Volvo 7.4 LP fuel pump whine at idle
Yeah, unfortunately I can't tell you how to test it (cover the air intake and stall the engine?), but it sounds to me as if your install oughta work the same way the OE pump did. Maybe one of the techs will chime in.
I'm going to think about your solution as those low pressure pumps sure seem to have issues. My last boat (5.7) whined for the 2 years I owned it, though the pump didn't fail. On the current boat, the pump on the port engine crapped out without any warning whatsoever. $200 for the factory part really hurts, in addition to the fact that it killed my day trip. Might be worth buying one and setting it up in advance so I can swap it in in a hurry if I need it.
Yeah, unfortunately I can't tell you how to test it (cover the air intake and stall the engine?), but it sounds to me as if your install oughta work the same way the OE pump did. Maybe one of the techs will chime in.
I'm going to think about your solution as those low pressure pumps sure seem to have issues. My last boat (5.7) whined for the 2 years I owned it, though the pump didn't fail. On the current boat, the pump on the port engine crapped out without any warning whatsoever. $200 for the factory part really hurts, in addition to the fact that it killed my day trip. Might be worth buying one and setting it up in advance so I can swap it in in a hurry if I need it.