Thanks for all the feedback and info folks - sure enough it was the oil
pressure switch (actually the electrical connection tab to connect to it had
broken rather than the internal switch itself) - should have been obvious if I
had been looking in the right place. Anyway, new switch, 5 minute
Nathan,
If your Admiral panel is like the one on an M3-20B, and I'd bet it is,
the oil pressure switch also provides electrical power to the fuel lift
pump, once the engine starts running. If your oil switch is not closed,
the fuel pumps stops. It may run for a few minutes on what's in the
Good plan on ordering. I keep spare sensors and switches on the boat.
I also tried a generic oil pressure sending unit once based on ohm range.
It didn't work. I only order Westerbeke parts now for things like that.
Dennis C.
On Fri, Jun 7, 2019 at 11:59 AM Nathan Post via CnC-List <
Dennis,
The alarm was pulsing - like it does when you first turn the key on - so I am
pretty sure it is the oil pressure. Can’t get back out to the boat until next
week but I’ll check that circuit out with an ohm meter then. Based on what
Josh said that it is a “alarm when not connected”
Westerbeke no longer stocks the temp switch for my 1986 W21, but was able
to find one at Seattle distributor.
On Fri, Jun 7, 2019 at 6:08 AM Dennis C. via CnC-List
wrote:
> Nathan,
>
> Was the alarm continuous or pulsating?
>
> The low oil pressure alarm, i.e., <5-10 psi, should be a pulsating
Nathan,
Was the alarm continuous or pulsating?
The low oil pressure alarm, i.e., <5-10 psi, should be a pulsating alarm.
If the oil pressure was OK, this alarm should be silent.
The high temperature alarm is a continuous sound. On my 25XPB, the high
temperature alarm is a separate SWITCH. The
Thanks for the good advice and info. I’ll check out the wiring and switches for
the oil and temp alarms with an ohm meter.
Nathan
S/V Wisper
___
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly
I think it could just as easily be the temperature switch. Mine went bad
on my Westerbeke 21 a couple of years ago.
On Thu, Jun 6, 2019 at 7:25 PM Nathan Post via CnC-List <
cnc-list@cnc-list.com> wrote:
> Hello,
>
> On the way back to the marina this evening the oil pressure alarm went off
>
The oil pressure switch and the temperature switch are most likely
independent of their respective senders for the gauges. You can check them
for continuity to ground - Just across the screw on back to the engine
block. A loose wire can also cause your symptom. I believe that the temp
switch
Sounds like the sender. I replaced mine this year.
Alan Bergen
35 Mk III Thirsty
Rose City YC
Portland, OR
On Thu, Jun 6, 2019 at 7:25 PM Nathan Post via CnC-List <
cnc-list@cnc-list.com> wrote:
> Hello,
>
> On the way back to the marina this evening the oil pressure alarm went off
> after
Hello,
On the way back to the marina this evening the oil pressure alarm went off
after having motored about 10 minutes (and previously an hour earlier motored
20 minutes or so out). I have a Westerbeke 20B2 diesel in my boat. We have
the admiral style control panel so that has both the
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