I too have an oil pres=
sure
alarm "fault". With my T25 1989 2.1l the alarm blips in around the 2000 rpm=
mark
and can be instantly reset if the revs are increased above 2k. The oil pres=
sure
has been checked by two independent garages and both confirm that the press=
ure
is "within limits". As a precaution the pressure switches have been changed=
on
two occasions.The circuitry has been checked and is said to be OK. I have
=
checked against the Bentley manual and yes its OK but the fault is still th=
ere.
There have been many other T25s with similar faults listed but a=
s yet
I have not seen any solutions, in the meantime it is very annoying to say t=
he
least. Somebody somewhere must be able to shed some light in rectifying thi=
s
problem! I did read in a magazine, issue three of VW Camper and Commercial,=
that
if the crankshaft end float exceeds .007 thou then there can be a catastrop=
hic
pressure drop but without removing the gearbox and freeing up the cra=
nk to
measure the end float how else can one check?
The problem remains bu=
t in my
case it has been intermittent for about a year now and the engine is still =
going
Regards.
Richard Stevens
Our 0.3 bar pressure gauge is bad. We drove about=
200
miles with the oil pressure indicator light blinking and getting progress=
ively
worse but not a peep out oil pressure warning buzzer. I made sure t=
he
buzzer was still operating by pulling apart the electrical connector wher=
e the
pressure switch leads tie into the wiring harness, revved the engine to 2=
000+
and bzzzzz. Then I made a short jumper with 1/4" spade connectors a=
nd
connected the 0.9 bar switch back into the circuit. This kept the o=
il
light from flickering all the way back home. I felt safe doing this=
assuming that the buzzer and oil light would warn me while driving down t=
he
highway above 2000 RPM. This assumes that I don't have a massive fa=
ilure
of the oil cooler or filter that blocks all flow to the engine
bearing.
My question is, if I can operate the vehicle without th=
e 0.3
bar pressure switch connected into the circuit, why can't I just replace =
that
pressure switch with a sender? Is a sender without an integrated
=
pressure switch small enough to fit in where the pressure switch is curre=
ntly
located? Assuming I pay at least as much attention to the gauge as =
I do
to the red idiot light, am I putting our engine at risk by doing somethin=
g
like this?
Thanks,
Tom Moritz