So our vacuflush pump works fine; but if it sits for more than 5 minutes the pump needs a love tap to wake back up and build vacuum. Where should I start? It holds vacuum once it builds, so valves are fine.
Vacuflush needs love tap
- Thread starter Strecker25
- Start date
- Mar 25, 2008
- 5,526
- Boat Info
- 2006 Sea Ray 58 DB
- Engines
- MAN CRM V8-900s, Twin Disc Drives; Onan 21.5 Generator
My aft VG2 did that...I replaced the pressure switch...
I thoight maybe that that was the culprit, but odd enough I have to hit the motor cover. I'm wondering if taking the cover off exposes some gears or something that can be greased. Of course it's facing away from me down there
- Mar 25, 2008
- 5,526
- Boat Info
- 2006 Sea Ray 58 DB
- Engines
- MAN CRM V8-900s, Twin Disc Drives; Onan 21.5 Generator
It could very well be the motor. Todd (Nehalennia) had a flat spot on the armature (as I recall) that caused his to hang up. Take the cover off of the pressure switch and bypass the terminals...If it starts right up, it's the pressure switch - that's what I found on mine. I could tap the VG anywhere, and it would pump, but bypassing the pressure switch proved that was the problem on mine...
Perfct I'll do that today. Just short the two wires going to the pressure switch to each other? It looked like a simple switch mechanism
- Mar 25, 2008
- 5,526
- Boat Info
- 2006 Sea Ray 58 DB
- Engines
- MAN CRM V8-900s, Twin Disc Drives; Onan 21.5 Generator
That's correct. I used a 4" piece of 14 GA wire with the ends stripped back. Once you take the cover off, you will see the pressure diaphragm and the two terminals on the top where the switch is located. When it works correctly, the vacuum pulls the diaphragm down and interrupts the circuit, removing power from the pump (when there is a sufficient amount of vacuum generated). By bypassing the wires, or even lifting the actuator, the pump should activate - IF it's a bad pressure switch...If you have easy access, it's a two minute job to run this test...
Yes, we do for that side of the pump. I had the cover off yesterday. Heading down to the boat now to run the test, ill report back.
thanks again
Not the switch, pump turns right on with a light tap of a screwdriver though. While down there I noticed we have what appears to be the same motor unit on the macerator. We can't use the macerator anyways, so I may just swap the motors for now to avoid the cost of a new motor (we need a canvas first, priorities I guess)
seasuite
New Member
- Jun 29, 2014
- 24
- Boat Info
- 1999 270 9'-2" beam 2001 f350, triple axle trailer. Standard horizon cp175c chart plotter
- Engines
- 454 7.4 mercruiser bravo 3
I just ordered 4 duck bill replacements
For my constantly running toilet. Hopefully this will cure it.
Sent from my iPhone using Tapatalk
For my constantly running toilet. Hopefully this will cure it.
Sent from my iPhone using Tapatalk
Duck bills should fix that, as long as your flush ball is sealing properly.
I have to retract my last post though, It turns out it was the switch. I was trying too many things at once so I took a step back and started over. I pulled the switch out and then apart, turns out the plunger has a rubber surround ( like a speaker surround) and was too stiff. A little cleaning (gross) and some grease freed it right up. Everything now works great. thanks for the help!
I have to retract my last post though, It turns out it was the switch. I was trying too many things at once so I took a step back and started over. I pulled the switch out and then apart, turns out the plunger has a rubber surround ( like a speaker surround) and was too stiff. A little cleaning (gross) and some grease freed it right up. Everything now works great. thanks for the help!
- Mar 25, 2008
- 5,526
- Boat Info
- 2006 Sea Ray 58 DB
- Engines
- MAN CRM V8-900s, Twin Disc Drives; Onan 21.5 Generator
Great news - nothing more than a "crappy" fix!!
