scoflaw
Well-Known Member
- Aug 10, 2011
- 6,395
- Boat Info
- 1999 Powerquest legend 260 sx 502 mag
2005 Baja 242 islander 496
- Engines
- 502 mpi Bravo 1
496 mag B1
Smartcraft right? Would the drive matter?A PSI sensor/gauge on a Alpha?
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Smartcraft right? Would the drive matter?A PSI sensor/gauge on a Alpha?
Just never heard of it on a boat with an alpha drive.Smartcraft right? Would the drive matter?
but it would explain why increase in RPMS in neutral increases water pressure just a bit.That would be a long shot, that impellor is corrosion proof. Yes that is the circulating pump.
No, it would not. The PSI sensor is well before (it's on the oil cooler) the circulating pump on the front of the engine.but it would explain why increase in RPMS in neutral increases water pressure just a bit.
It spins relative to RPM - gear/neutral is irrelevant.ok - if that's the case, can someone explain the basics of how this works then - does the raw water pump impeller (in the lower outdrive) actually spin faster when RPMs are increased the the boat is in neutral?
Just drop the lower - that only takes about 20 minutes.ya - agree with you Scott - have a brand new impeller kit and the Merc Service manual... I've had outdrive off before and I think something got messed up putting it back together - it's a PITA to work on...